SewageTreatment Plant Decolorization Agent
The decolorization agent used in sewage treatment plant is a chemical agent that can effectively remove the color and organic matter in sewage. It is widely used in wastewater treatment in printing and dyeing, paper making, pharmaceutical, chemical and other industries.
1. Definition and function of the decolorization agent
Decolorization agent is a chemical agent that can remove pigment and other organic substances in sewage. Through adsorption, REDOX, precipitation and other ways, the color of sewage becomes lighter, and simultaneously the chemical oxygen demand (COD) is reduced.
2. Application scope of decolorization agent
Decolorization agent is mainly used in the following areas:
1. High chromatic wastewater treatment in dye factory and printing and dyeing factory;
2. Decolorization treatment of industrial wastewater from textile, paper making, ink and pharmaceutical production;
3. It also has a certain treatment effect on some wastewater with high suspended matter content.
3.the use of the decolorizing agent method
Dilution and addition: the decolorization agent is usually diluted with 10-40 times of water, and then directly added to the sewage, stirring for several minutes before settling or air flotation.
PH Value adjustment: adjusting the PH value of wastewater to 7-10 can improve the decolorization effect.
Collocation use: when the wastewater color and COD are high, it can be used with inorganic flocculant (such as PAC), but attention should be paid to the sequence of addition.
4. Advantages of decolorization agent
Efficient decolorization: the decolorization rate of printing and dyeing wastewater can reach more than 95%.
COD removal: and reduce the COD content in the sewage.
Easy operation: simple use process, easy to control.
Environmental friendly harmless: part of the decolorization agent no pollution, less sludge, no secondary pollution.
5. Precautions
1. Avoid direct contact with the strong acid to prevent the failure of the decolorization agent.
2. Diluted decolorization agent should be used as soon as possible to avoid long-term placement.
3. The sequence of addition can not be reversed, usually add decoloring agent first, and then add flocculant.
To sum up, the decolorization agent plays an important role in the sewage treatment, which can effectively remove the color and organic matter in the sewage, and is an important means to achieve the standard discharge of sewage.
More details to contact: Vivian Sun viviansun@san-mei.com 86 13790671695
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