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Wastewater treatment process in the process of preparing glyphosate

In the preparation process of glyphosate, an intermediate in the synthesis of glyphosate, either the diethanolamine method or the iminodiacetonitrile method can be used, both of which can achieve the purpose of preparation. However, no matter which method is adopted, a large amount of waste water will be produced. If it is directly discharged, it …

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Nonferrous metal smelting wastewater treatment process

In recent years, the frequency of pollution incidents in my country is gradually increasing, and the reason for this is closely related to non-ferrous metal smelting. Therefore, it is necessary to analyze the water quality characteristics of non-ferrous metal smelting wastewater according to the actual situation of non-ferrous metal smelting, and innovate the existing wastewater …

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Chemical Pollution Wastewater Treatment Technology

Sources and characteristics of wastewater generated in the coal chemical process The coal chemical industry uses coal as raw material and adopts a series of chemical methods for processing. In the entire process of coal processing into liquid fuels, solid fuels, or chemical products, there are many chemical processes that will produce a large amount …

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Circuit board complex copper waste water breaking process

Introduction to circuit board wastewater Printed circuit board (PCB), also known as printed circuit board, is an indispensable and important component in various electronic products. Printed circuit board is the largest industry in the electronic component industry, and it is widely used in various electronic devices such as mainframe computers, office and personal computers, household …

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Chromium-containing electroplating wastewater treatment chemical precipitation method

The electroplating industry can improve the corrosion resistance of metals, but the electroplating process usually produces huge industrial wastewater, and such wastewater often contains a large amount of chromium ions, which will seriously affect the ecological environment. In particular, the hexavalent chromium ions contained in electroplating wastewater are carcinogenic and must be effectively treated to …

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Removal of Magnesium Oxide from High Magnesium Phosphate Ores from Phosphate Chemical Acid Wastewater

Phosphate rock is an important mineral resource, mainly used in the production of phosphoric acid, phosphate fertilizer and phosphate products. The presence of impurities such as magnesium, aluminum, iron and other impurities in phosphate rock, especially magnesium, will bring a series of extremely adverse effects on the wet processing of phosphate rock. In the production …

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Wastewater Treatment Technology for Titanium Dioxide Production by Sulfuric Acid Process

Sulfate-reducing bacteria (sRB) method, as a potential technology to control sulfate pollution, has gradually become a research hotspot of scholars. High-concentration sulfate wastewater can easily cause the pH value of the water body to decrease, the soil becomes acidic, and the concentration of heavy metals increases, which seriously affects the surrounding ecological environment. Study the …

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Degradation of organic pollutants in wastewater by advanced oxidation technology

At present, traditional biological treatment technology is mainly used for organic pollutants in wastewater, but the effect is not ideal for some wastewater containing high concentration and stable chemical structure of organic pollutants, such as pesticides, papermaking, printing and dyeing wastewater, etc. High concentration, high toxicity, complex components, most of them contain stable aromatic structures …

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Direct reuse of filter backwash wastewater to enhance coagulation effect

The water purification plant produces a large amount of production wastewater every day, including the sludge discharge water from the sedimentation tank and the backwash water from the filter tank, accounting for about 3% to 10% of the water supply of the water plant. At present, this part of the production wastewater is either directly …

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Application of PAC and PAM flocculants in PTA industrial wastewater treatment

In water treatment, substances that can make colloidal particles in water bind and coalesce with each other are called coagulants. Basic aluminum chloride (PAC) and polyacrylamide (PAM) are two widely used coagulants. PTA wastewater is the wastewater produced in the process of producing PTA from p-xylene (PX). It has the characteristics of complex composition and …

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