Waste Minimization

Waste minimization is the process of reducing the amount of waste produced by a person or a society. Waste minimization is about the way in which the products and services we all rely on are designed, made, bought and sold, used, consumed and disposed of.

Waste Reuse

Reuse means using an item more than once. This includes conventional reuse where the item is used again for the same function and new-life reuse where it is used for a new function. For example, concrete is a type of construction waste which can be recycled and used as a base for roads; inert material may be used as a layer that covers the dumped waste on landfill at the end of the day.

Waste Recycling

Recycling of waste involves reprocessing the particular waste materials, including e-waste, so that it can be used as raw materials in another process. This is also known as material recovery. A well-known process for recycling waste is composting, where biodegradable wastes are biologically decomposed leading to the formation of nutrient-rich compost.

Waste-to-Energy

As far as waste-to-energy is concerned, major processes involved are mass-burn incineration, RDF incineration, anaerobic digestion, gasification and pyrolysis. Gasification and pyrolysis involves super-heating of municipal solid waste in an oxygen-controlled environment to avoid combustion. The primary differences among them relate to heat source, oxygen level, and temperature, from as low as about 300°C for pyrolysis to as high as 11 000°C for plasma gasification. The residual gases like carbon dioxide, hydrogen, methane etc are released after a sophisticated gas cleaning mechanism.

MSW incineration produce significant amounts of a waste called bottom ash, of which about 40% must be landfilled. The remaining 60% can be further treated to separate metals, which are sold, from inert materials, which are often used as road base.

The above mentioned techniques are trending in many countries and region. As of 2014, Tokyo (Japan) has nineteen advanced and sophisticated waste incinerator plants making it one of the cleanest cities. From the legislature standpoint, the country has implemented strict emission parameters in incinerator plants and waste transportation.

The European Union also has a similar legislature framework as they too faced similar challenges with regards to waste management. Some of these policies include – maximizing recycling and re-use, reducing landfill, ensuring the guidelines are followed by the member states.

Singapore has also turned to converting household waste into clean fuel, which both reduced the volume going into landfills and produced electricity. Now its four waste-to-energy plants account for almost 3% of the country’s electricity needs, and recycling rates are at an all-time high of 60%. By comparison, the U.S. sent 53% of its solid waste to landfills in 2013, recycled only 34% of waste and converted 13% into electricity, according to the US Environmental Protection Agency.

Trends in Waste Collection

Since the municipal solid waste can be a mixture of all possible wastes and not just ones belonging to the same category and recommended process, recent advances in physical processes, sensors, and actuators used as well as control and autonomy related issues in the area of automated sorting and recycling of source-separated municipal solid waste.

Automated vacuum waste collection systems that are located underground are also actively used in various parts of the world like Abu Dhabi, Barcelona, Leon, Mecca and New York etc. The utilization of the subsurface space can provide the setting for the development of infrastructure which is capable of addressing in a more efficient manner the limitations of existing waste management schemes.

This technique also minimizes operational costs, noise and provides more flexibility. There are various new innovations like IoT-enabled garbage cans, electric garbage trucks, waste sorting robots, eco dumpster and mechanisms etc are also being developed and deployed at various sites.

Conclusion

Waste management is a huge and ever growing industry that has to be analyzed and updated at every point based on the new emergence of threats and technology. With government educating the normal people and creating awareness among different sector of the society, setting sufficient budgets and assisting companies and facilities for planning, research and waste management processes can help to relax the issues to an extent if not eradicating it completely. These actions not only help in protecting environment, but also help in employment generation and boosting up the economy.

The post Guide to Effective Waste Management first appeared on BioEnergy Consult.

Audit energy use

Manufacturing plants typically use huge amounts of gas or electric energy. Adopting energy-efficient practices to optimize the plant’s energy use can slash costs considerably. Start by conducting an energy audit — ideally during the next scheduled plant downtime — to identify areas requiring improvement. HVAC systems, in particular, are huge energy and money drainers. Replace the filters and insulation so hot or cold air doesn’t escape. Repairs may also be needed. Temperature controls can be precisely automated with a programmable digital thermostat.

Additionally, common industrial lighting like incandescent bulbs should be switched out for LED lighting, which uses 75% less energy and lasts 25 times longer. Keep track of your eco-friendly changes and monitor energy use to make sure you’re operating at maximum efficiency.

Minimize waste

Reducing manufacturing waste is an effective way of making your plant more sustainable. For example, limit the quantity of excess raw materials your plant has in stock; order just enough material for the job it’s needed for each time. Work on recovering waste from both onsite and offsite locations with the help of techniques like centrifugation, electrolysis, reverse osmosis, or filtration.

Alternatively, recycling materials is a simple way to recover useful materials (recycling hazardous materials, however, usually isn’t eco-friendly). High-power, industrial shredders, in particular, can help you deal with a number of waste materials (such as, wood, plastic, rubber, and asphalt) by considerably reducing their size. Investing in durable equipment also reduces waste. For example, Bobcat T190 tracks are designed to minimize wear and tear to the tire. The thick, high-quality rubber lasts longer, so the tires need replacing less often.

Switch to renewable energy

Switching to renewable energy can help your plant generate its own clean electricity and heating. In fact, by 2035, renewable energy is set to be the main global power source, according to the 2019 Clean Jobs America report. Green power sources like solar, wind, biomass, geothermal heat, and rain are also cheaper than traditional fossil fuel energy sources.

Depending on your state, you may also be able to benefit from tax incentives and earn money back. You can also support renewable energy by selecting a renewable electricity tariff with your supplier. This means either some or all of the power your plant uses will be matched by your supplier purchasing green energy.

Making your manufacturing plant more eco-friendly certainly isn’t an overnight job. However, it’s well worth the time and effort it takes to make positive and permanent changes. Switching to sustainable practices and tech-driven equipment will help the environment, save energy, and improve your bottom line.

Recommended Reading: How to Tackle Vibrations using a Cariolis Flow Meter

The post Sustainable Manufacturing: Eco-Friendly Ideas For Your Plant first appeared on BioEnergy Consult.