Collection and Transportation

There are two factors which have a significant impact on the costs and viability of a waste management system as it relates to collection and transportation: first, the distance travelled between collection and disposal point; and second, the extent to which ‘wet’ kitchen waste can be kept separate from dry waste much of which can be recycled. Separating waste in this way reduces the costs of manual sorting later on, and increases the prices for recyclable materials.

In many larger towns distances become too great for door-to-door collectors to dispose waste directly at the dump site. Arrangements are made to dispose of waste at secondary storage points (large skips) provided by the municipality. However, where these are not regularly emptied, the waste is likely to be spread beyond the bins, creating a further environmental hazard.

Ideally, and if suitable land can be found, a number of smaller waste disposal sites located around a town would eliminate this problem. With significant public awareness efforts on our part, and continual daily reminders to home-owners, we were able to raise the rate of household separation to about 60%, but once these reminders became less frequent, the rate dropped rapidly back to around 25%. The problem is compounded in larger cities by the unavailability of separated secondary storage bins, so everything is mixed up again at this point anyway, despite the best efforts of householders.

If rates are to be sustained, it requires continual and on-going promotion in the long term. The cost of this has to be weighed against the financial benefit of cleaner separated waste and reduced sorting costs. Our experience in Sri Lanka shows how important a role the Local Authority can play in continuing to promote good solid waste management practices at the household level.

Home Composting

Our experience with home composting shows that complete coverage, with every household using the system, is very unlikely to be achieved. Where we have promoted it heavily and in co-operation with the Local Authority we have found the sustained use of about 65% of the bins. Even this level of coverage, however, can have an important impact on waste volumes needing to be collected and disposed of. At the same time it can provide important, organic inputs to home gardening, providing a more varied and nutritious diet for poor householders.

Waste to Compost and Waste to Energy

The variety of technologies we have demonstrated have different advantages and disadvantages. For some, maintenance is more complicated and there can be issues of clogging. For the dry-fermentation chambers, there is a need for a regular supply of fresh waste that has not already decomposed. For other systems requiring water, quite large amounts may be needed. All of these technical challenges can be overcome with good operation and maintenance practices, but need to be factored in when choosing the appropriate technology for a given location.

The major challenge for compost production has been to secure regular sales. The market for compost is seasonal, and this creates an irregular cash flow that needs to be factored in to the business model. In Bangladesh, a significant barrier has been the need for the product to be officially licensed. The requirements for product quality are exacting in order to ensure farmers are buying a product they can trust.

However, the need for on-site testing facilities may be too prescriptive, creating a barrier for smaller-scale operations of this sort. Possibly a second tier of license could be created for compost from waste which would allow sales more easily but with lower levels of guarantees for farmers.

Safe Food Production and Consumption

Community people highly welcomed the concept of safe food using organic waste generated compost. In Sri Lanka, women been practicing vertical gardening which meeting the daily consumption needs became source of extra income for the family.

Female organic fertilizer entrepreneurs in Bangladesh are growing seasonal vegetables and fruits with compost and harvesting more quality products. They sell these products with higher price in local and regional markets as this is still a niche market in the country. The safe food producers require financial and regulatory support from the government and relevant agencies on certification and quality control to raise and sustain market demand.

Conclusion

Solid waste management is an area that has not received the attention it deserves from policy-makers in South Asia nations. There are signs this may change, with its inclusion in the SDGs and in many INDCs which are the basis of the Paris Climate Agreement. If we are to meet the challenge, we will need new approaches to partnerships, and the adoption of different kinds of systems and technologies. This will require greater awareness and capacity building at the Local Authority level. If national climate or SDG targets are to be met, they will need to be localised through municipalities. Greater knowledge sharing at national and regional levels through municipal associations, regional bodies such as SAARC and regional local authority associations such as Citynet, will be an important part of this.

Practical Action’s key messages for regional and national policy makers, based on our experience in the region in the last 5 years, are about the need for:

• creating new partnerships for waste collection with NGOs and the informal sector,
• considering more decentralised approaches to processing and treatment, and
• recognising the exciting potential for viable technologies for generating more value from waste

The post Solid Waste Management in South Asia: Key Lessons first appeared on BioEnergy Consult.

Trees grow towards the sun, which feeds their foliage. Animals are adapted to their pastures, and their pastures are adapted to them. As a result, everyone wins. Animals satisfy hunger, and plants flourish again. In this great life journey on Earth, each species has a particular function and takes a certain place. There are no useless creatures. They are all balanced.

And Homo sapiens – a man of sense – enters the arena of history. He received a fabulous inheritance that the Earth has carefully preserved for 4 billion years. He is only 200,000 years old, but he has already changed the face of the world. Despite his vulnerability, he captured all the habitats and conquered the territory like no other species before him. Today, life – our life – is only a link in the chain of countless lives following one another on Earth for 4 billion years.

For a long time, the relationship between people and the planet were fairly balanced and resembled a natural and equal union. Now, we rarely think about global issues, being lost in everyday concerns. Meanwhile, we are on the verge of a disaster. Thanks to the achievements of science and technology, people learned to satisfy their needs, but some inventions brought us much more harm than good. We are killing our planet gradually but purposefully.

Only by changing your habits quite a bit, you and your loved ones can make the world cleaner and safer. These 15 simple tips do not require you either time or extra effort, but can make a difference in saving the world:

1. Make the most of natural ambient light. Turn off the light in the room or the computer monitor when you do not need it. And do not forget about the chargers in the appliance receptacle!
2. Teach yourself to turn off the water at a time when you do not need it – for example, while brushing your teeth or rubbing the pan with a detergent. On average, according to statistics, 5-10 liters of water (depending on pressure) flows out of the tap per minute. Also, reduce the time spent in the shower for 1-2 minutes.
3. Replace incandescent bulbs with LED lights: they save energy and last longer.
4. Change to a bike. It is cool, fast, and comfortable. Having tried only once, you no longer want to get on the “hot bus” or spend time stuck in traffic jams. In addition, a bicycle is an excellent vehicle as it does not pollute the air with dangerous gases.
5. Use phosphate-free detergents. On the Internet, there are many resources offering ecological household chemicals.
6. Buy less plastic bags, go to the store with your eco-bag.
7. Replace plastic with paper and glass. If you cannot do without disposable tableware – for example, when going on a picnic – use paper plates and cups rather than plastic ones. Purified water from under sink reverse osmosis system is the best alternative of plastic bottled water.
8. Choose cosmetics and chemicals especially carefully. You should give preference to products that have not been tested on animals and do not adversely affect the environment at different stages of production.
9. Though it is as simple as ABC but very effective – try to bring plastic, glass, and paper for recycling.
10. Bring batteries to special shops and institutions because this is a dangerous and very toxic type of waste.
11. Refuse semi-finished products. Experts say that today, the manufacture of these products is fully controlled by monopoly companies that abuse antibiotics, overload the ecosystem, and apply the principles of intensive management for their own profit. Of course, in such conditions, quality suffers. Homemade food is much better. Do not know how to cook? A dating site may be helpful.
12. Buy local food – the one that is made in your area. This food undergoes less chemical treatment which is sometimes used for long-term transportation.
13. Use water filters. In this case, you do not need to spend money on bottled drinking water. Thus, you will not only save your family budget but also reduce the environmental impact caused by the production and transportation of plastic bottles.
14. Plant flowers on window sills and trees in the courtyards. Do not let anyone cut down green spaces near your house.
15. Support environmental organizations and encourage your family to do it.

“Orbiting Earth, I saw how beautiful our planet is. People, let us preserve and increase this beauty, not destroy it!”

– Yuri Gagarin

The post 15 Simple Ways You and Your Family Can Save the Planet first appeared on BioEnergy Consult.

Able to operate at immensely high temperatures, well in excess of 250 degrees Fahrenheit, these ovens can make use of various power sources, including electricity, gas, and oil, in order to operate, being used for heat-treating parts, conditioning metals, and much more.

This guide will take a look at some of the many different types of industrial ovens and some of their common uses too.

The Types of Industrial Ovens

There are many different types of industrial ovens, and new types are being produced by leading industrial oven manufacturers all the time. It’s therefore not possible to list every single variety out there, but the list below will cover some of the most common types, introducing their basic design and functionality.

1. Electric

An industrial electric oven, as the name implies, will make use of electricity as its primary power source. This allows it to reach high temperatures very quickly, as well as giving the user a lot of precise control over the interior temperatures, times, and settings. These types of ovens are useful when working with certain types of metal products and combustible items that aren’t suitable for gas ovens.

2. Gas

Gas ovens make use of gas to operate and are more affordable to use than electric ovens due to their lower energy costs. They can heat up very quickly and keep their temperatures high for longer than other oven types, making them useful for extended sessions of heating and treating. They generally make use of either natural gas or propane and are well-suited for jobs like automotive part manufacturing and powder coating onto the steel.

3. Drying

A drying oven, as the name implies, is designed to dry out the items that are placed inside it, removing any excess moisture. This can be very useful for sterilizing medical items, heat-treating metals, and so on.

4. Curing

A curing oven is designed to help powders and paints bond with metal surfaces. They’re great for processes like powder coating, as well as being useful for hardening substances like plastic and rubber, and they can have a range of different power sources, including electricity and gas.

5. Conveyor

A conveyor industrial oven is one that has a conveyor belt system on the inside which gradually moves the items along into different oven zones. There are usually multiple heating zones operating at different temperatures in a conveyor oven, as well as cooling zones too, and these ovens are hugely versatile, working with curing, drying, forming, and other processes.

6. Batch

A batch industrial oven is a very large oven that can take on big jobs, heating many items all at once. These tend to be some of the biggest industrial ovens around and they’re usually powered by electricity.

7. Tunnel

A tunnel oven is a long industrial oven with openings at either end and a belt in the center. Items move along the belt, through the tunnel, from one end to the other, being heated and baked in the center. These ovens tend to operate continuously, able to treat batch after batch of items, making them well-suited for baking and food preparation.

Uses of Industrial Ovens

There are many different ways in which industrial ovens can be used, for example:

• Food – Just like commercial ovens you find at home or in restaurants, industrial ovens can also be used to bake food products, but on a much larger scale than a typical home oven. They’re essential for businesses that make large batches of food for sale and delivery.
• Sterilization – Industrial ovens can play a key role in sterilizing medical items and accessories like scalpels, syringes, and so on. Their high temperatures help to kill bacteria and other germs, as well as eradicating other contaminants.
• Pharmaceuticals – Another medical application of industrial ovens is for making pills in the pharmaceutical industry. These ovens can be used to essentially bake the coatings of pills into place and getting rid of any excess chemicals or contaminants.
• Heat Treating – This process is when heat is applied to metals to create different effects, like strengthening or tempering the metals or aging them. This process can take days to complete but can result in much stronger and more durable metals for use in industries like aeronautics and automotive.

Final Word

In their many forms, sizes, and styles, it’s clear to see that industrial ovens play a vital role in the world around us.

The post Industrial Ovens: Types and Uses first appeared on BioEnergy Consult.

Read on to discover many eco-friendly wrapping and packaging materials that could end up being better for the environment. Thanks to modern delivery services like healthy food delivery in Miami Dade we’re able to get meals wrapped in sustainable packages.

1. Glass Containers

One of the many reasons why people want to make the switch from plastic is because it can take centuries to break down. However, so does glass, so why use it? Unlike plastic which tends to lean toward being a single-use product, glass is something you can have forever. It’s one of the longest-lasting materials and will prove to offer no end of convenience.

In most cases, you can use glass containers in your fridge, freezer, microwave, and even oven. You couldn’t do that with most plastic products. Glass containers are also an excellent alternative for plastic in almost every way. You can put your unwrapped sandwiches in them and seal the lid shut. You can also put leftover dinner into them for reheating later.

Glass containers are even something you can take to the grocery store. Instead of a supermarket filling a plastic container with their deli items or bulk groceries, you can fill your glass jars. One product can end up having many uses, saving thousands of plastic wrap rolls and containers from requiring waste disposal.

2. Mason Jars

Mason jars have been around since the 1850s, but it’s only in recent years there has been a resurgence in their use. As consumers come to realize that plastic is not environmentally-friendly, they are starting to use sealable mason jars that serve a whole variety of purposes. Cafes are using them for beverages, and you can even use them for serving at home. What’s more, there’s nothing wrong with using them for produce, soup, grains, and more. Move aside plastic; there’s a new player in town.

3. Parchment Paper

If you are trying to minimize how much rubbish you send away to catering bins, then consider swapping your cling film for parchment paper. Wax or parchment paper is an excellent alternative, while also breaking down far quicker than plastic wrap. It will still keep your sandwiches fresh, but with a much less detrimental impact on the environment.

4. Bees Wrap

Bees wrap is a relatively new product to hit the market, but it’s already making waves. It consists of cotton muslin cloth dipped in beeswax, tree resin, and jojoba oil. When you heat them with your hands, you’re able to seal food within. Both the jojoba oil and beeswax are also antibacterial which can offer exceptional benefits with preservation.

When you have eaten your sandwich, you don’t need to worry about impacting waste disposal. You can clean the wraps and reuse them.

5. Cardboard

Many countries around the world have banned single-use plastic bags, with New Zealand the latest nation to join the movement. It will only be a matter of time before waste disposal businesses notice the dramatic impact in plastic waste. That’s a good thing – but how will people package their goods, or carry their groceries? Cardboard is about to become far more popular than it is now.

Instead of packaging your items in plastic, you can store them neatly in cardboard boxes. They break down into the environment, are effortless to stack, and you can use them more than once.

6. Go Nude

For the sake of waste disposal, why not consider going nude? We don’t mean take all your clothes off, but why not avoid packaging altogether? Grocery stores are not making this process easy with the number of plastic-wrapped items they have, but you can be more conscientious about the purchasing decisions you make.

Put your vegetables and fruit in cloth bags and your loose bulk bin items into glass jars. Instead of buying pasta, rice, and other ingredients in plastic packets, buy them from bulk stores that encourage you to bring containers to put them in. If you can’t seem to avoid plastic, then draw up a meal plan that differs from what you usually do. You can then make an effort to eat food that will not arrive in packaging.

Conclusion

People used to cope without plastic for packaging and wrapping, and they can do so again. Think of the effects of waste disposal and how you can stop your contribution to the growing problem. Use glass jars and containers, buy ingredients in bulk, and stop using plastic wrap for your sandwiches. These might seem like small changes, but when 7.7 billion people follow suit, we can make a significant difference.

The post 6 Best Alternatives for Plastic Wrapping and Packaging first appeared on BioEnergy Consult.

Increase in Global Energy Demand

Global energy demand is estimated to increase from 524 Quadrillion btu in 2010, to 820 Quadrillion btu by 2040 (a 56% increase). Similarly, global demand of food and animal products are projected to increase by 70-100% and 50-70%, respectively, by 2050. To cope up with the demand for animal products, a substantial increase in nutritious animal feed is needed.

On one hand, the production of conventional feedstuff such as soybean meal and fish meal is reported as the major contributor to land occupation, ocean depletion, climate change, water and energy consumption. Moreover, such conventional animal feedstuff are not only limited in supply but also are becoming more expensive over the years. Additionally, there is an already strong and increasing competition for resources such as food, feed and biofuel production.

Need for alternative non-conventional source of food, feed, and fuel

Thus there is a pressing need for identifying and exploring the potential of alternative non-conventional source of food, feed, and fuel, which are economically viable, environmentally friendly, and socially acceptable.

By 2030 the Bio-based Economy is expected to have grown significantly. A pillar of this is biorefining, the sustainable processing of biomass into a spectrum of marketable products and energy. To satisfy this demand biorefineries need to be better integrated, flexible and operating more substantially. This means that a major yield, more efficient use of nutrients and water and greater pest and disease resistance should be achieve.

Zena Fly: A Startup Worth Watching

In this context an Italian-based start-up, Zena Fly, designed an innovative process for the future integrated biorefinery by mimicking nature’s ability. In fact, Zena Fly utilizes the natural insect life cycle to manage large quantity of organic waste produced in urban and industrial context, in order to generate sustainable and valuable by-products. The project of three young entrepreneurs foresees a combined bio-refinery where waste is turned into high-quality by-products by the anaerobic insect digestion.

The Concept

The basic concept is to convert waste into high-valuable products utilizing the black soldier flies (H. illucens), a now globally distributed insect. With a modern technique, the typical insect life cycle of these insects can be utilized in order to manage urban and industrial waste. The voracious larvae can reduce by more than 40-70% (based on the nature of the substrate-waste) the substrate where reared (waste) within 12-14 days.

From the anaerobic waste digestion, large quantity of fine protein meal for feed composition (more than 50-60% in protein), fat, fertilizing oil and other by-products of great interest such as chitin, and high-quality biofuel are then extracted.

Since the adult fly do not feed, and do not fly around for feeding, these animals are exceptionally valuable from a sanitary perspective (larvae has been demonstrate to reduce/eliminate E.coli and Salmonella).

Business Model

Zena Fly business model foresees to replicate their integrated biorefineries next to any waste management companies or industrial production areas where large quantity of waste need to be reduced and transformed. This is a win/win operation, where the waste management cost would be cut in half and the process will generate appealing opportunities for investments in a market where the increasing demand is already way higher than the products availability.

Zena Fly is now seeking for the right partner-investor in order to scale up quickly. For more information, please visit www.zena-fly.com or email us on info@zena-fly.com

The post Zena Fly- Feeding the World on Insect first appeared on BioEnergy Consult.