Technology

Characteristics and pretreatment technology of blue carbon wastewater

27.65% of coal can be used for coking, which is the basis for the rise of the coking industry. Blue charcoal is the product obtained by dehydration, rapid pyrolysis and carbonization of Jurassic non-stick coal, long-flame coal and weakly sticky coal at a temperature between 600 and 800 °C. Compared with anthracite and bituminous coal, …

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Iron oxide red plant wastewater treatment process

The wet mixed acid process produces iron oxide red, and the raw materials are mainly iron sheet, nitric acid, ferrous sulfate, steam and air, so the production wastewater contains more ferrous ions, NH3, COD, TN and other pollutants. If the production wastewater is directly discharged into the natural water body without treatment, it will cause …

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The purification and treatment process of scheelite beneficiation wastewater

Scheelite beneficiation mainly adopts the flotation process that consumes a lot of water. The wastewater contains a large amount of water glass, beneficiation agents and fine-grained ore. The resulting stable colloidal dispersion system is difficult to clarify and reuse. It is a huge waste, pollutes the environment, and also seriously restricts the sustainable development of …

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Zero-discharge treatment process for wet desulfurization wastewater in coal-fired power plants

Among the mature processes used for flue gas desulfurization at home and abroad, the limestone-gypsum wet desulfurization (Wet Flue Gas Desulfurization, WFGD) process is the most widely used in coal-fired power plants. This process accounts for more than 90% of the total industrial desulfurization in my country and has the advantages of mature technology, high …

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Renovation of Alkali Slag Wastewater Treatment Process

Styrene, isoprene, dicyclopentadiene, n-pentane, isopentane, cyclopentane, piperylene, mixed xylene, mixed trimethyl benzene, mixed tetramethyl benzene, industrial cracked carbon 9, mixed recombination Oil separation, mixed methyl naphthalene, petroleum naphthalene, heavy aromatics, etc. Therefore, there are many types of wastewater, which change from time to time, and contain a large number of pollutants such as neutral oil, …

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Optimization of arsenic and antimony wastewater treatment process

To treat wastewater containing arsenic and antimony, two-stage flocculation sedimentation + sand filtration treatment process is adopted. The original treatment station designed the influent concentration of arsenic ≤ 15mg/L, antimony ≤ 10mg/L, the actual influent concentration of arsenic 40~100mg/L, antimony concentration 20~40mg/L, much higher than the designed influent concentration; after the completion of the station, …

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Advanced treatment of industrial fluorine-containing wastewater by seed-induced flocculation

Fluorine-containing wastewater is widely derived from the production process of fluorine chemical industry, aluminum electrolysis, glass manufacturing and other industries. Excessive discharge of fluorine will cause serious harm to the human body. At present, the high-concentration fluorine-containing wastewater is mainly pretreated by lime precipitation, and the fluorine concentration in the wastewater can be reduced to …

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Phosphorus-Containing Wastewater Treatment Process in Printed Circuit Board Production

In recent years, with the continuous development of science and technology, the printed circuit board industry has made great progress. Phosphorus-containing wastewater will be generated in the production process of printed circuit boards. This kind of wastewater is mainly produced in the electroless nickel plating process. Phosphorus-containing wastewater Phosphorus present in the water is harmful …

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Epichlorohydrin high-salt organic wastewater treatment technology

Epichlorohydrin, also known as epichlorohydrin, is a volatile and unstable liquid. The color of the liquid is not obvious. It is generally colorless and colorless liquid. Pure epichlorohydrin is the same color as the water. . It is slightly soluble in water, but also miscible with organic solvents. Epichlorohydrin is a basic chemical raw material …

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Printing and Dyeing Wastewater Treatment Microflocculation

Printing and dyeing wastewater is a kind of industrial wastewater produced by the dyeing of wool textiles and synthetic fiber cloth and its printing and dyeing industry. At present, there are many methods for treating printing and dyeing wastewater, such as coagulation/sedimentation, coagulation sedimentation/ozone oxidation, flocculation / Fenton oxidation, microorganisms, nanofiltration and ultrafiltration / reverse …

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