May 13, 2017
PrefaceWith the development of dye production and printing and dyeing industry, the discharge of dye industry wastewater has also increased sharply. According to surveys, about 160 million cubic meter...
May 12, 2017
Case study of ethyl acetate waste gas treatmentWaste gas type: Ethyl acetateExhaust gas volume: 3000m³/hExhaust gas concentration: 100g/m³Recovery rate: 99%Waste gas treatment plan:Due to the high c...
May 11, 2017
In industries such as steel, metallurgy, and electroplating, surface treatment of metals is essential. In the steel industry, if the steel is left for too long, rust and oxide scale will form on its...
May 10, 2017
Acid is widely used as a cleaning agent, corrosive agent, or catalyst in industries such as metallurgy, machinery, and chemical engineering.
May 09, 2017
Acid pickling is a widely used process in the steel industry, but it generates a large amount of waste acid and poses a great threat. If discharged directly without treatment, it will not only cause...
May 08, 2017
The general form of nitrogen in nature is NO3-. After water pollution, ammonia nitrogen is formed, with some existing in the form of free ammonia and others in the form of ions, mainly depending...
Apr 30, 2017
In the process of sewage treatment, various sewage problems will be encountered. For example, indicators such as COD, ammonia nitrogen, and SS do not meet the standards, and sludge expansion, floating...
Apr 29, 2017
During the dye production process, a large amount of pollutants are generated in processes such as sulfonation, nitration, diazotization, reduction, oxidation, and acid (salt) precipitation.