The problem of industrial waste salt and its resource utilization approaches

2023-12-29

Industrial waste salt usually refers to solid waste generated in the industrial production process, mainly composed of inorganic salts. These wastes mainly come from multiple industries such as high salt wastewater treatment and pesticide production. According to statistics, China produces over 2.0 industrial waste salts annually × 107t, most of which comes from the production of pesticides and dyes.

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A New Process for Pharmaceutical Wastewater Treatment

2023-12-27

Pharmaceutical industrial wastewater mainly includes antibiotic production wastewater, synthetic drug production wastewater, traditional Chinese patent medicines and simple preparations production wastewater, and washing water and flushing wastewater in the production process of various preparations. The characteristics of its wastewater are complex composition, high organic content, high toxicity, deep color and high salt content, especially poor biochemical properties and intermittent discharge, making it difficult to treat industrial wastewater.

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Development status of fluorinated pharmaceuticals and intermediates

2023-12-22

The application of fluorinated compounds in the field of medicine is becoming increasingly widespread. Fluorinated drugs have the characteristics of high efficiency, low toxicity, and easy metabolism. Although they are expensive,

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How to improve the filtration performance of a filter?

2023-12-20

To ensure that the filtered water quality meets the standards for drinking water quality, polymer coagulants such as polyacrylamide or activated silica can also be added before the raw water enters the filter. Direct filtration of raw water eliminates the need for sedimentation or clarification processes, simplifies the treatment process, and saves investment. Using double-layer filter media and multi-layer filter media for direct filtration, the same as ordinary double-layer filter media or multi-layer filter media filters. But the composition and thickness of the filter layer should be reasonably selected according to the raw water quality, and the filtration rate should be low, generally around 5m/h.

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Several summaries of biochemical treatment technology

2023-12-18

The advantages and disadvantages of activated sludge method and biofilm method. Like biofilm method, activated sludge method belongs to aerobic biological treatment method.

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Precautions during reverse osmosis chemical cleaning process

Precautions during reverse osmosis chemical cleaning process

2023-12-13

In the actual cleaning process of the reverse osmosis system, attention should be paid to controlling the actual value of flow rate (flow rate) to not exceed the specified value of a single membrane element. For online cleaning, a non segmented cleaning method is usually adopted.

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