Regulations are normally the most important factors changing the world’s air pollution control decisions. However, advances in the ability to treat hot gases make technology questions the most important subjects for air pollution control purchasers in China, the U.S. and the rest of the world. The regulations leave no doubt that existing precipitators on coal-fired boilers, kilns and ...
Production processes in the chem-ical and pharmaceutical industries give rise to gaseous and liquid residues that are preferably disposed of in decentralized incinerators. Most of these residues are highly caloric gases and solutions containing high concentrations of organic substances. The complexity of these often toxic substances requires the use of special equipment for the incineration ...
The use of nanomaterials in consumer goods is growing, as is their presence in waste. A new study is the first to follow the fate of engineered nanoparticles through the entire waste incineration chain. The results indicate current filter technology is effective in removing nanoparticles from flue gas, but that nanoparticles also bind to residues, such as fly ash and slag, which eventually end up ...
The world market for centrifuges, clarifiers, dissolved air flotation systems and hydrocyclones will grow from just over $5.4 billion in 2006 to $6 billion in 2010. Clarifiers and thickeners will generate the most revenues. These gravity-settling devices are widely used. They are found in every country from Chilean copper mines to Taiwanese sewage treatment plants. The second ...
Abstract If left to conventional treatment processes, the destruction of toxic organic wastewaters and associated sludge volume reduction clearly becomes an overwhelming problem. Two options, incineration and supercritical water oxidation (SCWO), exist for the complete destruction of toxic wastewaters and organic sludges. Incineration has associated problems such as very high cost and ...