biodegradable waste Applications

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Energy and Fuels from Commercial Waste

by Advanced Plasma Power (APP)     based in Swindon, UNITED KINGDOM

Commercial Waste is similar to Municipal Solid Waste although it tends to have more biodegradable products. Commercial waste is defined as all wastes created by commercial businesses. This can include, but is not necessarily limited to, solid or liquid wastes originating from offices, stores, markets, restaurants, shopping centres and other enterprises. We receive Commercial waste into the Materials Recycling Facility (MRF) at the front end of the Gasplasma® energy from waste plant. Any recyclable materials are recovered and the remainder is dried and shredded to make Refuse Derived Fuel (RDF). The RDF is used as fuel in the Gasplasma® plant to generate clean, renewable power and heat.

Energy and Fuels from Municipal Solid Waste (MSW)

by Advanced Plasma Power (APP)     based in Swindon, UNITED KINGDOM

Municipal Solid Waste (MSW), which includes household waste, is the residual waste put into a black bin bag or wheelie bin. MSW contains a mixture of recyclable, organic, inorganic and biodegradable materials. We recover as many recyclable materials as possible before drying and shredding the remainder to make a Refuse Derived Fuel (RDF) for the process. Our energy from waste process, Gasplasma®, transforms the RDF into a clean hydrogen-rich synthesis gas (syngas).

Gas Sensing for Landfill

by Edinburgh Instruments Ltd     based in Livingston, UNITED KINGDOM

In March 1986 an explosion destroyed a bungalow adjacent to a landfill site in Loscoe, Derbyshire. Subsequent measurements showed that 150-200 cubic meters of gas per hour were being generated by landfill waste. This event triggered a change in the way the waste industry considered and regulated gas generated at landfill sites; resulting in the landfill regulations of 2002, and in particular LFTGN03: the Guidance on the Management of landfill Gas. The regulations, which run to 128 pages, describe the management and control of landfill sites, and define landfill gas as being all the gas generated from landfill waste. This includes gases generated by biodegradation of waste and gas arising from chemical reactions and the volatilisation of chemicals from the waste. These regulations require that for every landfill site, a gas management plan is put in place to ensure: • Landfill gas must be collected from all landfills receiving biodegradable waste and the landfill gas must be treat

Waste water respirometry solutions for toxicity testing

by Strathkelvin Instruments Ltd.     based in Motherwell, UNITED KINGDOM

If industrial wastewater entering a treatment works contains toxic components the rate of biodegradation will be inhibited or stop completely. This can result in failed consents and will certainly give rise to operational problems. Visible indications include deflocculation, bulking and the appearance of filamentous bacteria. Sometimes, there are no visible effects. When the sludge bacteria are inhibited, there is the possibility of toxicity carryover in the effluent that is discharged to receiving waters. With new environmental legislation being introduced, worldwide, to protect the natural environment, toxin discharge is now a serious concern for treatment plant managers.

Waste water respirometry solutions for process optimisation

by Strathkelvin Instruments Ltd.     based in Motherwell, UNITED KINGDOM

Respiration rate of activated sludge has been recognised as a key controlling element in the modelling of process control, by the International Water Association Task Group. Actual respiration rate of the sludge in the aeration tanks, as well as the endogenous and maximum respiration rates are variables that indicate the rate of BOD removal and aeration requirements. The maximum respiration rate is also closely linked to the Critical Oxygen Concentration point, that is, the point at which diffusion over the bacterial cell walls ceases and therefore biodegradation is significantly compromised.

Waste water respirometry solutions for toxicity based consents

by Strathkelvin Instruments Ltd.     based in Motherwell, UNITED KINGDOM

Water companies, water authorities or publicly-owned treatment works (POTW) need to have some knowledge of the composition of the wastes they it receive. In addition to testing for ammonia and BOD or COD levels, treatment works can license industrial discharges on the basis of concentrations of some of the known toxic compounds. However, it is recognised that very many non-regulated toxic materials still enter the treatment works and reduce the efficiency of biodegradation, and may cause toxic shock. The way is now open for more widespread use of direct toxicity tests as a basis for toxicity-based consents. Samples of the industrial effluent are collected at source, for testing on the actual bacteria of the receiving activated sludge. The tests used are the Respiration Inhibition Test and the Nitrification Inhibition Test. Note that this approach mirrors that of the regulators of discharges to receiving waters, who are now using direct toxicity tests (DTA) or whole effluent toxicity tests (WET tests) in order to protect the receiving environment.

Biological wastewater processes for petrochemical

by Biowater Technology     based in Cumberland, RHODE ISLAND (USA)

This wastewater typically contains a lower biochemical to chemical oxygen demand.  We determine biodegradability of each waste stream and the presence of toxic or inhibitory compounds. 

Membrane filtration systems for biotechnology and pharmaceutical industry

by GEA Filtration     based in Hudson, WISCONSIN (USA)

GEA Filtration is experienced in processing a wide range of products on a commercial basis and by testing products at the plant site or in our pilot plant testing facility. Definition of the Industrial Biotech and Environmental Biotech Sector. This sector uses living organisms to manufacture a variety of products that result in the reduction of pollution, resource consumption and waste. Typical products include bioethanol, industrial enzymes, biological fuel cells, enzymes for bioremediation, biodegradable plastics and much more.

Wastewater treatment solutions for anaerobic sludge digestion sector

by QM Environmental Services Ltd.     based in The Hague, NETHERLANDS

Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen, used for industrial or domestic purposes to manage waste and/or to release energy. It is widely used as part of the process to treat wastewater, like Upflow Anaerobic Sludge Blanket (UASB) reactors. As part of an integrated waste management system, anaerobic digestion reduces the emission of landfill gas into the atmosphere. Anaerobic digestion is widely used as a renewable energy source because the process produces a methane and carbon dioxide rich biogas suitable for energy production, helping to replace fossil fuels. The nutrient-rich digestate which is also produced can be used as fertilizer. The digestion process begins with bacterial hydrolysis of the input materials in order to break down insoluble organic polymers such as carbohydrates and make them available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. Acetogenic bacteria then convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide.

Related Terms for biodegradable waste

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