chemical waste treatment Articles
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Alternative stabilisation options of mechanically sorted organic fraction from municipal solid waste prior to landfill disposal
In order to foresee the measures of the Directive 1999/31/EC, waste management policies are focused on the reduction of organic matter landfill disposal, through the recovering of the organic waste stream or the pre-treatment of residual wastes before landfilling. This paper discusses the advantages and disadvantages of possible stabilisation treatments of the mechanically sorted organic fraction ...
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Effluent Treatment Plant (Distillery Effluent) Distillers Ltd, Trinidad.
Treating most stringent molasses based distillery effluent to discharge standard in Carebbian Region. A waste water treatment project for a Distillery in Caribbean region where W.O.G Group will be treating most stringent molasses based distillery effluent, as per local’s discharge norms. CHALLENGE: Treatment of stringent effluent generated by Molasses based distillery, having effluent ...
By WOG Group
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A New Toxkit Microbiotest with the Protozoan Ciliate Tetrahymena
Abstract : Culture free microbiotests with organisms from different trophic and functional levels, e.g. bacteria, algae, rotifers and crustaceans, are presently available. This paper presents the status quo and general design of a new, ready to use multi-generation microbiotest with the standard ciliate Tetrahymena, a representative from a further ecologically relevant group - the protozoa. The ...
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Effect of microwave temperature, intensity and moisture content on solubilisation of organic fraction of municipal solid waste
High temperature and pressure microwave (MW) pre-treatment of the Organic Fraction of Municipal Solid Waste (OFMSW) enhanced solubilisation prior to Anaerobic Digestion (AD). Three temperatures (175°C, 145°C and 115°C), three MW intensities based on temperature ramp times (20, 40 and 60 minutes) and two Supplemental Water Additions (SWA) of 20% and 30% were evaluated. MW irradiation resulted in ...
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Influence of chemically enhanced primary treatment on anaerobic digestion and dewaterability of waste sludge
To lower energy consumption at a sewage treatment plant (STP), primary settling could be enhanced to direct more chemical oxygen demand (COD) to anaerobic digestion (AD) for increased biogas production and decreased aeration. Primary settling can be chemically enhanced by applying flocculation aids (FAs). FAs are refractory compounds that may affect all sludge treatment facilities. In this ...
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Assessment of leachates from a Cuban municipal solid waste landfill: characterisation and treatment
Calle 100 landfill receives 75% of the solid waste of Havana. In this work, the physical-chemical and microbiological evaluation and the treatment of its leachates was carried out. The study of the elimination of pollutants was carried out at laboratory scale. The characterisation showed an important content in organic substances of high molecular weight, fulvic and humic acids that have a ...
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Sludge Respirometry at Avecia, Grangemouth
Untitled Document Avecia is now using the Strathkelvin Activated Sludge Respirometer in its effluent management programme, at its Grangemouth site. Avecia was formed by a buyout of the speciality chemicals section of AstraZeneca in 1999. It now operates from 28 sites worldwide. Grangemouth is the main manufacturing site in the UK, specialising in fine ...
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The increasing importance of assessing toxicity in determining sludge health and management policy
The harm caused by toxic industrial effluents to sewage treatment works, has been recognised for many years. These can cause reduction in biodegradable efficiency, with an associated requirement for longer treatment time, and in extreme cases, toxic shock can kill off the secondary tanks. Currently, the presence of harmful industrial effluents is made evident by their effects on the overall ...
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The Hidden Dangers of Industrial Mop Water, Examining little-known threats to the environment & wastewater treatment processes
When we think of mop water, most likely we think of our kitchen floor. In industrial plants, however, mop water could contain a toxic blend of chemicals that are mopped off the floor, and sometimes end up in our rivers, streams and municipal wastewater systems. While we consider the health of our environment, we don’t necessarily realize the hidden dangers of mop water. This article ...
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What Is Industrial Wastewater Treatment?
Industrial progress has helped economic and social growth to a large extent, whereas, it has also created the major problem of environmental pollution at the same time as well. Industrial pollution is one of the major concerns of industries and environment protection agencies worldwide. The technical advantages have assisted the industries to reduce water pollution to a certain level. The ...
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What is biological wastewater treatment?
Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean water Biological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and biochemistry. Biological ...
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