Management of Construction Wastes

A wide variety of wastes are generated during construction projects which may be classified into four categories – excavated wastes, demolition wastes, construction wastes and mixed wastes. Construction wastes are also known Construction and Demolition (C&D) wastes. Excavated materials is made up of soil, sand, gravel, rock, asphalt, etc. while demolition wastes is comprised by  concrete, metal, roofing sheets, asbestos, brick, briquette, stone gypsum, wood material. Waste materials generated from construction activities are concrete, dry wall, plastics, ceramics tiles, metals, paper, cardboards, plastics, glass etc. In addition, mixed wastes, such as trash and organic wastes, are also produced in construction projects. A great way to get rid of all the construction waste is to hire a company that handles everything for you. For instance, if you need a south Philadelphia roll-off dumpster, you will find many options, make sure to select a reliable company that can offer you an excellent service and advises you along the way.

construction-wastes

 

Almost 90 percent of construction wastes are inert or non-hazardous, and can be reused, reclaimed and recycled and reused. The non-recyclable, non-hazardous and hazardous waste materials constitute the remaining 10 percent. The non-inert materials include trees, green vegetation, trash and other organic materials while and the hazardous construction waste materials include contaminated soil, left over paints, solvent, aerosol cans, asbestos, paint thinners, striping paint, contaminated empty containers.

Sustainable management of construction wastes uses number of strategies and is based on the typical waste hierarchy: Avoid/ eliminate, reduce, reuse, recycle, treat and dispose.

Avoidance / Source Reduction

Avoidance or source reduction is considered as the best strategy for waste management and is the most economic way to reduce waste and minimise the environmental impacts of construction wastes. This can be done by avoiding use of hazardous materials such as asbestos-containing materials or chromated copper arsenate treated timber or through green purchasing of materials. This includes purchasing of non-toxic materials, pre-cut timbers and ordering materials of desired dimensions.

Reuse

Although source reduction and elimination are preferred options in the waste management hierarchy, it is always not possible to do so. In this case consider reuse, donation and salvage options to companies or people who need those. Reuse option lengthens the life of a material. Reuse strategy can be used in two ways.

Building Reuse – It includes reusing materials from existing buildings and maintaining certain percentages of building structural and non-structural elements  such as interior walls, doors floor covering and ceilings.

Material Reuse – This is one of the most effective strategies for minimising environmental impacts which can be done by salvaging, refurbishing and reusing materials within the same building or in another building.

Many of the exterior and interior materials can be recovered from existing buildings and reused in new ones. Such materials will include steel, walls, floor coverings, concrete, beams and posts, door frames, cabinetry and furniture, brick, and decorative items. Reuse of materials and products will help to reduce the demand for virgin materials and reduce wastes.

Recycle

There is very good potential to recycle many elements of construction waste. Recycling involves collecting, reprocessing and/ or recovering certain waste materials to make new materials or products. Often roll-off containers are used to transport the waste. Rubble can be crushed and reused in construction projects.

Waste wood can also be recovered and recycled. Many construction waste materials that are still usable can be donated to non-profit organizations. This keeps the material out of the landfill and supports a good cause.

Treat and Dispose

This option should be considered after all other options are exhausted. The disposal of construction materials should be carried out in appropriate manner through an approved contractor. For examples, certain components of construction waste such as plasterboard are hazardous once landfilled. Plasterboard is broken down in landfill conditions releasing hydrogen sulfide, a toxic gas.

How to Declutter in an Environmentally Friendly Way

Decluttering and organizing is an excellent opportunity to get rid of non-essential items, update those needing attention, and start afresh. It also presents a perfect time to evaluate your consumption and purchase habits to find ways of living sustainably. How you manage your home and live your life significantly affects your carbon footprint. Therefore, if an opportunity to declutter presents itself, you should leverage various eco-friendly options to protect the environment.

Tips to Declutter in Eco Friendly Way

Why is a Conscious and Eco-Friendly Lifestyle Important?

Climate change and reducing natural resources have become major problems in recent years. Buying and using more household items significantly contributes to landfill waste, which increases carbon emissions. This is harmful to human life and the environment.

Several agencies have developed strategies that encourage individuals to make environmentally-conscious decisions. This mitigates environmental damage and ensures that humans live a brighter and more sustainable life. While there are several ways to reduce environmental impact, changing your activities at home has significant effects.

Creating a zero-waste life significantly reduces individual carbon footprint. As such, the benefits of conscious decluttering go beyond getting rid of household junk. Through this, you can make healthier, more efficient, and eco-friendly lifestyle choices.

Sustainable Ways to Declutter Your Home

While decluttering benefits your physical and mental health, decluttering sustainably is better for the environment and prepares you better for the move. The following are sustainable decluttering tips:

1. Repurpose

Before discarding any item in your home, consider repurposing it. Most people are quick to dispose of clothing and other things, which can be beneficial in several ways. For instance, old CD cases can be used to store cables, Kleenex boxes are excellent plastic bag holders, and empty toilet rolls can hold cluttered wires together. Fortunately, the internet is awash with endless ways of repurposing various household items.

2. Donate

Donating is an eco-friendly method of disposing of non-essential items that are in good condition. The adage “one man’s garbage is another’s treasure” surely holds. Just because you don’t need or use some items doesn’t mean others won’t enjoy having them. Old blankets, sheets, clothes, and other household items can benefit homeless shelters and needy families. You can also sell these items to thrift stores to make them accessible to individuals who can’t afford expensive items.

3. Recycle

Recycling is another popular and environmentally-friendly method of decluttering. The best way to protect the environment is to ensure that appliances, electronics, and other items don’t contribute to landfill waste. Reducing landfill waste is a direct way of minimizing your carbon footprint.

You can leverage several recycling options available. The most common option is donating items in good condition to charities, listing them on websites dealing with second-hand items, or dropping them off at recycling centers. Choosing either of these options is better than dumping them in a garbage truck.

4. Digitize where possible

You can also take advantage of advancing technologies to minimize your carbon footprint. Computer technologies are beneficial in many ways, including enhancing responsible decluttering. Like most people, you might be dealing with a collection of official documents, old bank statements, paper records, photos, and ATM slips. These items can quickly accumulate without knowing.

Fortunately, you can declutter and organize your home better by digitizing these important documents and embracing cloud technologies. Digitizing ensures that you reduce paper waste that contributes to landfills. Documents and files that are no longer essential should be shredded and discarded.

5. Dealing with mattress waste

Surprisingly, more than 20 million mattresses are discarded to incinerators and landfills annually. Mattress donation isn’t a popular option as many people don’t prefer sleeping on pre-used mattresses. That said, recycling is the best way to deal with old mattresses. Though rarely found, mattress recycling centers can recycle up to 85% of mattresses. Use platforms like Earth911.com to find mattress recycling centers in your locality.

6. Adopt green cleaning methods

Bottles of shampoo, lotion, makeup products, and soap are packed and wrapped in individual boxes. This contributes to significant recyclable waste lying in your cabinets and cupboards. As you clean and declutter, you should find eco-friendly cleaning alternatives to minimize air pollution and release of toxic elements into the environment.

spring cleaning and anxiety

Start by replacing paper towels, which are America’s number one discarded item, with reusable clothing made from renewable and sustainable material with little environmental impact. You should also replace common spray cleaners with agents that don’t have harmful chemicals. You can purchase several products online or follow online tutorials to make them at home.

7. Upcycle items

Upcycling is another excellent option for recycling most household items. Instead of discarding items such as shovels, wheelbarrows, and old buckets, you can use them to decorate your garden. You can repaint containers, make a water feature, or plant flowers and herbs. There are endless upcycling ideas for household items available online.

The Bottom Line

Decluttering in an environmentally friendly way also includes making prudent choices. For instance, evaluate if you really need a product before purchasing a new item. You should also consider buying from second-hand stores to encourage the culture of recycling.

Zero Waste Trends in the United States

Most people don’t see what happens to their trash. They throw it in a black plastic bag, toss the bag into a dumpster and the trash man collects it once a week and makes it disappear. Magic, right?

Wrong.

Most of our trash ends up in a landfill where it is buried and mixed in with decades-worth of junk. Certain items will break down over time while others are essentially just stored there, in a graveyard of forgotten items and a mountain of garbage.

In the year since China banned the import of other countries’ plastic recyclables, the global recycling industry has been in flux, resulting in plastics ending up in landfills, incinerators and littering the environment. This is causing countries and citizens across the globe to reexamine their recycling systems and highlights the need for zero waste practices.

Zero waste is the concept of eliminating the amount of trash thrown away by only purchasing reusable items. That’s a significant shift from the 4.4 pounds of trash that the average American tosses every day. But certain trends are helping make the idea of zero waste a reality in the United States. Let us have a look:

Replace Single-Use Packaging With Reusable Materials

Way too many plastic items that we use every day are meant to be used only once. And the amount of packaging that goes into shipping one box, that will simply get tossed in the garbage after the parcel is unwrapped, is astounding. In fact, 40 percent of plastic produced is packaging, which is thrown away after it arrives at your doorstep.

Plastic bag and straw bans are on the rise across the globe. Consumers are becoming more conscious of how their use of these items contributes to the trash crisis. Recent data shows that customers are more likely to buy products from brands that promote sustainable business practices.

biodegradeable-packaging

Reduce Energy Waste By Choosing Renewable Options

Many industries are opting to reduce energy waste by pursuing renewable energy sources. U.S. manufacturers account for 30 percent of the nation’s energy consumption, which means manufacturers must take the lead in reducing fossil fuel consumption and energy waste.

The U.S. is the leader in energy waste. Americans spend $350 billion on energy costs each year, yet three-quarters of that energy goes to waste. One way to reduce the burden on our power grid — and our wallets — from all that lost energy is by switching to renewable energy sources.

Air compressors are vital to the upkeep of a successful farm, and many producers in the agricultural sector are also reducing waste by switching to high-powered air compressors that, when properly maintained, can reduce energy usage and cut costs.

Eliminate Food Waste

About 94 percent of food waste ends up in landfills, which contribute to methane gas emissions. Reducing food waste not only helps the environment, but it also decreases the amount you have to spend at the grocery store. It also helps to conserve energy, as less power is needed to grow and produce food if less is wasted.

Individual consumers can help eliminate food waste by freezing leftovers to preserve them and composting uneaten food, as opposed to tossing in the trash.

Restaurants can use these tactics and others to cut down on food waste, such as donating leftovers and properly training staff to get on board with waste reduction. They can also hire auditors to help them identify ways to reduce waste and streamline business practices.

Never Too Late to Make a Change

Though the statistics may seem disheartening, the reality is that it’s never too late to make a change in your individual or business habits to help cut down on waste and work toward the goal of accomplishing zero waste. Following these trends and implementing others is just one way to do your part to eliminate waste and protect the environment.

How Cash for Car Service is Recycling Old Vehicles?

Is your car damaged beyond repair and occupying the space in the garage or backyard? Removal the old or damaged car for free while getting paid cash in exchange is now a reality. Whether you want to upgrade your old car or create space for a new car, car removal services help with excellent disposal service teamed with usable parts recycling.

The scrap car removal services help transport and remove vehicles from your compound and pay immediate cash for it. Ever wondered how the service works and what the removal services exactly do with the cars? Read on how the scrap dealers successfully provide cash for cars in Wellington and buy all types of car models.

removal and recycling of old vehicles

Advanced technology used for recycling vehicles

Recycling is an effective way to contribute to adopting sustainable and environment-friendly practices. With the get cash for cars Wellington offers, the scrap dealers or car removal services buy cars in any condition with the motive of recycling. The car body or metal is recycled for the production of metal sheets. The usable spare parts or OEM components are refurbished, quality-checked, and used for replacing faulty parts. However, the companies use an array of innovative technology for successful recycling:

  • The electronic scales are primarily used for measuring vehicle weight. The vehicle is weighed to estimate and provide a fair quote to the seller. Based on weight, cash is paid for purchasing the vehicle.
  • Management software for keeping track of purchased vehicles, recycling progress, sales process, and managing incoming or outgoing vehicles is important. With multiple purchases on a single day, the software helps in easy documentation and precise access to data.
  • Recycling facilities or technology is a boon for recycling vehicle parts or bodies. Most car removal services either have their recycling facility or dismantle the parts to send to a recycling facility.

Removal and recycling of a range of vehicles

Most people want to sell their car to a removal service because it is unusable or an old model. The removal services have no criteria for purchasing the cars, but professionals do a careful inspection to quote the cash to be received by the seller. Most car scrap or removal dealers deal with the following types of cars:

  • Junk cars are quite old and might break down anytime or already have broken down. This is a win-win situation as the seller gets instant cash, and dealers recycle the parts.
  • The scrap dealers pick up the damaged vehicles. If the car is lying in your garage or yard and is beyond repair because of an accident, it’s best to get it towed and send it to a junkyard.
  • Old cars are not fuel-efficient, decreased mileage, and are known for toxic emissions. The car removal service helps remove the old car, makes space for a new car, and gives you some quick cash. The completely useless scrap cars are also purchased for recycling the metal.

old car disposal

How to get hold of the right car removal service?

When selling your car to a scrap dealer, connecting with only reputed dealers that offer a fair price is crucial. Once you have decided to get rid of the vehicle, connect with the removal service and request a pickup. A team of experts inspect the vehicle to give the cash quote. Once the agreement is done, the vehicle is transported, and the company manages all the logistics. After inspection and valuation, the car removal company pay in cash.

If you want to get rid of your junk or damaged car, it is time to contact a removal service and get free pickup of the vehicle. Not only that but the vehicle is also inspected and fairly valued for handing over instant cash for the car.

Plastic Wastes and its Management

Plastic seems all pervasive and unavoidable. Since the 1960s our use of plastic has increased dramatically, and subsequently, the portion of our garbage that is made up of plastic has also increased from 1% of the total municipal solid waste stream (household garbage) to approximately 13% (US Environmental Protection Agency).

Plastic products range from things like containers and packaging (soft drink bottles, lids, shampoo bottles) to durable goods (think appliances, furniture and cars) and non-durable goods including things from a plastic party tray to medical devices. Sometimes marked with a number and a chasing arrow, there is an illusion that all plastics are recyclable, and therefore recycled. But there are a number of problems with this assumption.

plastic-wastes

While use and consumption of plastic is increasingly high, doubts about viable options for reuse, recycling and disposal are also on the rise. Complications such as the increasing number of additives used alter the strength, texture, flexibility, colour, resistance to microbes, and other characteristics of plastics, make plastics less recyclable. Additionally, there is very little market value in some plastics, leading municipalities to landfill or incinerate plastics as waste. Based on figures from the EPA (2011 data) only 8% of plastic materials are recovered through recycling.

Another major concern about plastics in the waste stream is their longevity and whether or not they are truly biodegrade. It is estimated that most plastics would take 500-1000 years to break down into organic components. Because of this longevity and the low rate of recycling, much of our plastic waste ends up in landfills or as litter. Some of this plastic waste makes its way via rivers and wind to the ocean. Garbage barges, and the trans-continental transport of recyclable materials also lead to an increasing amount of plastics in our oceans and waterways.

Plastic waste directly and indirectly affects living organisms throughout the ecosystem, including an increasingly high impact on marine life at a macro and micro scale. According to United Nations, almost 80% of marine debris is plastic. Policy enforcement remains weak, global manufacture of plastics continues to increase, and the quantity of plastic debris in the oceans, as well as on land, is likely to increase.

With limited sustainable recovery of plastics, there is a growing global movement to reduce the generation of plastic. Certain types of plastic may be ’safer‘ for the environment than others, however, there are troubling issues associated with all of them, leading to the conclusion that action is needed to remove plastic waste, and stricter controls are required to limit new sources of plastic pollution.

biodegradable-plastics

Efforts such as light weighting of packaging and shifts to compostable plastics are options. Many people use eco-friendly bags for the sake of green living. Policies limiting the use of plastics such as bottle bills and bag bans are other ways to decrease the production and consumption of plastics.

Mining the debris fields in our oceans and turning plastic waste into usable materials, from socks made of fishing line to fuel made from a variety of plastic debris, is one way to mitigate the current situation. You can do your part by using renewable cotton bags.

Note: This excerpt is being published with the permission of our collaborative partner Be Waste Wise.

Solid Waste Management – India’s Burning Issue

For the first time in the history of India, the year 2012 saw several public protests against improper solid waste management all across India – from the northernmost state Jammu and Kashmir to the southernmost Tamil Nadu. A fight for the right to clean environment and environmental justice led the people to large scale demonstrations, including an indefinite hunger strike and blocking roads leading to local waste handling facilities. Improper waste management has also caused a Dengue Fever outbreak and threatens other epidemics.

In recent years, solid waste management has been the only other unifying factor leading to public demonstrations all across India, after corruption and fuel prices. Public agitation resulted in some judicial action and the government’s remedial response, but the waste management problems are still unsolved and might lead to a crisis if this continues for too long without any long term planning and policy reforms.

Solid-Wastes-India

Hunger Strike in Kerala

The President of Vilappilsala Village Panchayat went on a hunger strike recently, against her counterpart, the Mayor of Thiruvananthapuram. Thiruvananthapuram is the state capital of Kerala, and Vilappilsala is a village 22 km away.

Since July 2000, about 80% of the waste generated in Thiruvananthapuram is being transported to a waste composting plant and a dumpsite in Vilappilsala village. Since the same month, respiratory illnesses reported in Vilappil Primary Health Center increased by 10 times from an average of 450 to 5,000 cases per month. People who used to regularly swim in the village’s aquifer started contracting infections; swarms of flies have ever since been pervasive; and a stigma of filth affected households throughout the community. This was a source of frustration as locals who, as Indians, prize the opportunity to feed and host guests, found them unwilling to even drink a glass of water in their homes. Currently, there is not a single household which has not experienced respiratory illnesses due to the waste processing plant and the adjoining dumpsite.

On the other hand, Thiruvananthapuram’s residents had to sneak out at night with plastic bags full of trash to dispose them behind bushes, on streets or in water bodies, and had to openly burn heaps of trash every morning for months. This was because the waste generated was not being collected by the City as it could not force open the composting plant and dumpsite against large scale protests by Vilappilsala’s residents. This is why in August – 2012, about 2,500 police personnel had to accompany trucks to the waste treatment plant as they were being blocked by local residents lying down on the road, and by some, including the village’s President, by going on an indefinite hunger strike.

Municipal Commissioner Replaced in Karnataka

In response to a similar situation in Bengaluru, the state capital of Karnataka, where the streets were rotting with piles of garbage for months, the municipal commissioner of the city was replaced to specifically address the waste management situation. Against the will of local residents, a landfill which was closed following the orders issued by the state’s pollution control board in response to public agitation had to be reopened soon after its closure as the city could not find a new landfill site.

Mavallipura landfill in Bangalore

Population density and the scale of increasing urban sprawl in India make finding new landfill sites around cities nearly impossible due to the sheer lack of space for Locally Unwanted Land Uses (LULUs) like waste management.

Dengue Outbreak in West Bengal

Even if partially because of improper waste management, Kolkata, state capital of West Bengal and the third biggest city in India experienced a Dengue Fever outbreak with 550 confirmed cases and 60 deaths. This outbreak coincides with a 600% increase in dengue cases in India and 71% increase in malarial cases in Mumbai in the last five years.

Accumulation of rain water in non biodegradable waste littered around a city act as a major breeding environment for mosquitoes, thus increasing the density of mosquito population and making the transmission of mosquito related diseases like dengue, yellow fever and malaria easier.

Rabies in Srinagar

Rabies due to stray dog bites already kills more than 20,000 people in India every year. Improper waste management has caused a 1:13 stray dog to human ratio in Srinagar (compared to 1 per 31 people in Mumbai and 1 per 100 in Chennai), where 54,000 people were bitten by stray dogs in a span of 3.5 years. Municipal waste on streets and at the dumpsite is an important source of food for stray dogs.

The ultimate solution to controlling stray dogs is effective waste management. The public has been protesting about this stray dog menace for months now with no waste management solutions in sight, but only partial short term measures like dog sterilization.

Waste-to-Energy Sector in China: Perspectives

China is the world’s largest waste generator, producing as much as 175 million tons of waste every year. With a current population surpassing 1.37 billion and exponential trends in waste output expected to continue, it is estimated that China’s cities will need to develop an additional hundreds of landfills and waste-to-energy plants to tackle the growing waste management crisis.

garbage-china

China’s three primary methods for municipal waste management are landfills, incineration, and composting. Nevertheless, the poor standards and conditions they operate in have made waste management facilities generally inefficient and unsustainable. For example, discharge of leachate into the soil and water bodies is a common feature of landfills in China. Although incineration is considered to be better than landfills and have grown in popularity over the years, high levels of toxic emissions have made MSW incineration plants a cause of concern for public health and environment protection.

Prevalent Issues

Salman Zafar, a renowned waste management, waste-to-energy and bioenergy expert was interviewed to discuss waste opportunities in China. As Mr. Zafar commented on the current problems with these three primary methods of waste management used by most developing countries, he said, “Landfills in developing countries, like China and India, are synonymous with huge waste dumps which are characterized by rotting waste, spontaneous fires, toxic emissions and presence of rag-pickers, birds, animals and insects etc.” Similarly, he commented that as cities are expanding rapidly worldwide, it is becoming increasingly difficult to find land for siting new landfills.

On incineration, Zafar asserted that this type of waste management method has also become a controversial issue due to emission concerns and high technology costs, especially in developing countries. Many developers try to cut down costs by going for less efficient air pollution control systems”. Mr. Zafar’s words are evident in the concerns reflected in much of the data ­that waste management practices in China are often poorly monitored and fraudulent, for which data on emission controls and environmental protection is often elusive.

Similarly, given that management of MSW involves the collection, transportation, treatment and disposal of waste, Zafar explains why composting has also such a small number relative to landfills for countries like China. He says, “Composting is a difficult proposition for developing countries due to absence of source-segregation. Organic fraction of MSW is usually mixed with all sorts of waste including plastics, metals, healthcare wastes and industrial waste which results in poor quality of compost and a real risk of introduction of heavy metals into agricultural soils.”

Given that China’s recycling sector has not yet developed to match market opportunities, even current treatment of MSW calls for the need of professionalization and institutionalization of the secondary materials industry.

While MSW availability is not an issue associated with the potential of the resource given its dispersion throughout the country and its exponential increase throughout, around 50 percent of the studies analyzed stated concerns for the high moisture content and low caloric value of waste in China, making it unattractive for WTE processes.

Talking about how this issue can be dealt with, Mr. Zafar commented that a plausible option to increase the calorific value of MSW is to mix it with agricultural residues or wood wastes. Thus, the biomass resources identified in most of the studies as having the greatest potential are not only valuable individually but can also be processed together for further benefits.

Top Challenges

Among the major challenges on the other hand, were insufficient or elusive data, poor infrastructure, informal waste collection systems and the lack of laws and regulations in China for the industry. Other challenges included market risk, the lack of economic incentives and the high costs associated with biomass technologies. Nevertheless, given that the most recurring challenges cited across the data were related to infrastructure and laws and regulations, it is evident that China’s biomass policy is in extreme need of reform.

China’s unsustainable management of waste and its underutilized potential of MSW feedstock for energy and fuel production need urgent policy reform for the industry to develop. Like Mr. Zafar says, “Sustainable waste management demands an integration of waste reduction, waste reuse, waste recycling, and energy recovery from waste and landfilling. It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis”.

Future Perspectives

China’s government will play a key role in this integrated solid waste management strategy. Besides increased cooperation efforts between the national government and local governments to encourage investments in solid waste management from the private sector and foster domestic recycling practices, first, there is a clear need to establish specialized regulatory agencies (beyond the responsibilities of the State Environmental Protection Administration and the Ministry of Commerce) that can provide clearer operating standards for current WTE facilities (like sanitary landfills and incinerators) as well as improve the supervision of them.

It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis

It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis

Without clear legal responsibility assigned to specialized agencies, pollutant emissions and regulations related to waste volumes and operating conditions may continue to be disregarded. Similarly, better regulation in MSW management for efficient waste collection and separation is needed to incentivize recycling at the individual level by local residents in every city. Recycling after all is complementary to waste-to-energy, and like Salman Zafar explains, countries with the highest recycling rates also have the best MSW to energy systems (like Germany and Sweden).

Nevertheless, without a market for reused materials, recycling will take longer to become a common practice in China. As Chinese authorities will not be able to stop the waste stream from growing but can reduce the rate of growth, the government’s role in promoting waste management for energy production and recovery is of extreme importance.

Solid Wastes in the Middle East

The high rate of population growth, urbanization and economic expansion in the Middle East is not only accelerating consumption rates but also increasing the generation rate of all  sorts of waste. The gross urban waste generation quantity from Middle East countries is estimated at more than 150 million tons annually. Bahrain, Saudi Arabia, UAE, Qatar and Kuwait rank in the top-ten worldwide in terms of per capita solid waste generation. 

Saudi Arabia produces around 15 million tons of garbage each year. With an approximate population of about 28 million, the kingdom produces approximately 1.3 kilograms of waste per person every day.  According to a recent study conducted by Abu Dhabi Center for Waste Management, the amount of waste in UAE totaled 4.892 million tons, with a daily average of 6935 tons in the city of Abu Dhabi, 4118 tons in Al Ain and 2349 tons in the western region. Countries like Kuwait, Bahrain and Qatar have astonishingly high per capita waste generation rate, primarily because of high standard of living and lack of awareness about sustainable waste management practices.

In Middle East countries, huge quantity of sewage sludge is produced on daily basis which presents a serious problem due to its high treatment costs and risk to environment and human health. On an average, the rate of wastewater generation is 80-200 litres per person each day and sewage output is rising by 25 percent every year. According to estimates from the Drainage and Irrigation Department of Dubai Municipality, sewage generation in the Dubai increased from 50,000 m3 per day in 1981 to 400,000 m3 per day in 2006.

Waste-to-Energy Prospects

Municipal solid waste in the Middle East is mainly comprised of organics, paper, glass, plastics, metals, wood etc. Municipal solid waste can be converted into energy by conventional technologies (such as incineration, mass-burn and landfill gas capture) or by modern conversion systems (such as anaerobic digestion, gasification and pyrolysis).

At the landfill sites, the gas produced by the natural decomposition of MSW is collected from the stored material and scrubbed and cleaned before feeding into internal combustion engines or gas turbines to generate heat and power. In addition, the organic fraction of MSW can be anaerobically stabilized in a high-rate digester to obtain biogas for electricity or steam generation.

Anaerobic digestion is the most preferred option to extract energy from sewage, which leads to production of biogas and organic fertilizer. The sewage sludge that remains can be incinerated or gasified/pyrolyzed to produce more energy. In addition, sewage-to-energy processes also facilitate water recycling.

Thus, municipal solid waste can also be efficiently converted into energy and fuels by advanced thermal technologies. Infact, energy recovery from MSW is rapidly gaining worldwide recognition as the 4th R in sustainable waste management system – Reuse, Reduce, Recycle and Recover.

Is Tire Recycling Dangerous?

Not too long ago, mountains of old tires were to be found in virtually every town and city’s landfill, and toxic tire fires that would sometimes take months to subside were a common occurrence. Today, these tire piles are a rarity, and thankfully, so are the fires that used to go with them.

scrap-tires-pyrolysis

We have largely to thank the combined initiatives of scientists, entrepreneurs, and legislators from banishing unsightly these unsightly tire piles from the landscape. Today you’re more likely to see old tires in your yoga mat or the asphalt you drive on than in ugly piles that you can see from the distance.

However, there have been questions about the widespread use of tire chips, especially in playgrounds, as mulch, and as repurposed water containers for agriculture and livestock.

These concerns are quite understandable, as we are in direct contact with tire chips when they are used in the first two applications. When used for agriculture and livestock, there seems to be a distinct and logical risk that any toxins that are released in those applications may eventually end up in our bodies.

Recycled tire products are safe for consumers

Provided that you are not the one processing the tires yourself (more on that later), there is an extremely low toxicity risk in tire chips. A typical tire chip is made from old tires, which means that they have already off-gassed much of their volatile organic compounds (VOC’s).  New tires emit a good amount of VOC’s, which you can readily detect because of the unique new tire smell.

Many of these compounds have been linked to cancer. However, decades of research and uncontrolled use of old tires in different applications through the 20th century seem to strongly indicate that unless you are actually involved in producing or processing tires, your risks are quite low due to the low dosage of chemicals a typical consumer can expect. It’s the doses that makes a chemical toxic, and in the case of old tires where most tire chips are derived, the risk is negligible.

However, working in an environment where you can actually smell the “new tire scent” constantly can be a significant risk. By analogy, a bartender will be fine if they have a drink with one customer. But if they drink with every single customer that comes by every night, they’re in serious trouble.

Recycling large volumes of tires can be problematic

Unless you constantly work with tires, the risk is quite minimal. You can and should feel free to recycle or repurpose any tires you have around your house or yard into furniture, tire swings, planters, or pet beds. However, if you’re thinking of recycling dozens of tires a week, you should reconsider, as the particulate dust from carving up or shredding old tires can also be a risk over time if you don’t have the right equipment or safety gear.

Improper tire recycling can also heighten your exposure to dangerous chemicals in the tires, especially when they are subjected to the heat of a grinder or shredder that is not specifically meant for tire recycling. This can expose you to high levels of carcinogenic VOCs without you realizing it.

If you need to safely dispose of a high volume of tires, or tires that are difficult to recycle, such as those on tractors and OTR vehicles, be sure to contact a professional recycler like Western Tire Recyclers.

How IoT, APIs and AI Can Make Waste Management Smarter?

Cities have been growing around the globe in the past few years. A United Nations report has estimated that about 68% of the world’s total population will be living in urban centers by the year 2050. This will see an increase of about 70% in solid waste, according to the World Bank.

This might be difficult to handle considering that the world is already facing challenges handling waste management. An increase in solid waste might see increased illegal dumping which might lead to other challenges, especially in public health.

Fortunately, advancements in technology have seen some parts of the world adopting IoT (Internet of Things), AI (Artificial Intelligence), and APIs (Applications Programming Interfaces) in a bid to make waste management smarter.

how can IoT and AI make waste management better

How can IoT, APIs, and AI make waste management better?

1. e-Waste Kiosks

Among the different types of waste that you can find in a waste bin, you will also find electronic gadgets. This kind of waste is known as e-waste. The toxicological implications of e-waste, things such as laptops. MP3 players, tablets, and phones can hurt both human beings and the environment.

They, therefore, have to be recycled well to avoid these effects. Fortunately, technology can be used to build e-waste kiosks that use smart applications to evaluate and determine the condition of electronic devices.

Those that are in bad condition and already hurting their owners or the environment can then be disposed of correctly.

2. Sensors for Waste Levels

Sensors powered by APIs, IoT, and AI can be used to implement a smart waste management system that works well for cities. These sensors can be used to track how much waste a bin has accumulated and then share that information with collection service providers.

The collection service providers will not only use this information for collection when the bins are full but also for planning and prediction. For instance, they can time routes and predict when to collect a bin based on the time that a bin takes before getting full.

Research has indicated that these sensors can help reduce the cost of waste management by about 50%. This is because waste bins can be collected on time, eliminating other maintenance requirements that arise from overfilling of the bins.

3. Waste Receptacles

Using Artificial Intelligence, waste collection service providers can build waste bins that come with waste receptacles to sort through waste, recognize different types of waste, and separate them depending on the requirements of the waste collectors.

For instance, if you were to manually sort through a waste bin in a city, you will find different types of waste. Things such as plastics, glasses, nylon papers, or even food waste will be mixed in the bin.

If you were to separate them manually, this would take you a lot of time. Technology has changed this. Using AI receptacles, waste can be sorted into different categories. This plays a crucial role in the transition to smart waste management.

4. AI-Powered Recycling Robots

Looking at a waste bin, you are likely going to find a lot of waste that can be recycled. However, how long can it take a person to manually separate the waste that can be recycled from the one that cannot?

Through AI and APIs, companies can build robots that do this for them. For this to work, understanding what an API is very important. This is because the APIs communicate and share data in a bid to help the robots differentiate different types of waste.

With such robots, waste such as plastic can be reused. Different types of waste that can be reused can be sent to companies for recycling instead of landfills. Using these robots, human error can be eliminated and operational costs reduced.

Benefits of Digital Technologies in Waste Management

5. Load Monitoring of Garbage Tracks

We have talked about sensors for waste levels in waste bins above. These bins are emptied into garbage tracks. So, it also makes sense for waste collection service providers to also put sensors into their garbage tracks.

By doing this, the waste collection service providers will be able to monitor the levels of waste on their garbage tracks. This way, they can collect data that can be used to predict when their tracks are likely going to fill up.

With such information, they can find ways to minimize or reduce the number of trips they have to make when collecting garbage. Over some time, they will be able to analyze the collected data to help in future planning and minimizing operational costs.

As technology advances, we are going to see more technologies making waste management better and smarter.