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Selection of Wastewater Treatment Agent Polyacrylamide

  • Author:Becky Zhao
  • Source:Original
  • Release on :2018-01-28
Industrial solid-liquid separation process is generally made to polyacrylamide flocculant used, including settlement, clarification, concentration and sludge dewatering technology, the application of industry is also more extensive, according to the main source of water is divided into two kinds: the urban sewage and industrial wastewater.
Urban sewage: refers to the sewage discharged into urban sewage system collectively, urban sewage also includes life sewage and industrial sewage, municipal sewage in choosing polyacrylamide used as flocculant, generally USES the cationic polyacrylamide, ion degree is in commonly 40% ~ 40%, of course, according to the different water quality, also have specific issues specific analysis.
Industrial wastewater: according to the industrial waste water contained in the chemistry of the main pollutants to classify, mainly divides into: organic wastewater containing mainly organic pollutants, inorganic wastewater with inorganic pollutants, and a mixture of organic and inorganic waste water, waste water containing radioactive substances, and only the cooling water, heat pollution and heavy metal waste water.
For example, waste water from food or petroleum processing is organic wastewater, while mineral processing wastewater and electroplating wastewater are inorganic wastewater.
Polyacrylamide classification, according to the industrial processing object can be divided into: metallurgical wastewater, textile wastewater, papermaking wastewater, leather wastewater, pesticide wastewater and oil refining wastewater, mineral processing industry, dyeing industry and sugar industry, etc.
Municipal sewage and industrial sewage are often activated sludge treatment, and biochemical sludge is often hydrophilic colloid with high organic content and extremely difficult to dehydrate.
Cationic polyacrylamide is used for treatment with low dosage, high dehydration efficiency and easy separation.
Liquor factory wastewater, brewery wastewater, MSG waste water, sugar factory wastewater, meat products factory waste water, beverage factory waste water, textile printing and dyeing factory waste water, etc.
Using cationic polyacrylamide is much higher than anionic polyacrylamide, non-ionic polyacrylamide or inorganic salt is several times or dozens of times higher.
Because this kind of wastewater is generally negative.
Selection of polyacrylamide is mainly depending on the type of charge sewage water quality with different to decide, based on the characteristics of water quality to select the cationic polyacrylamide, anionic polyacrylamide or zwitterionic polyacrylamide, etc., the process is usually from test in the laboratory to big test, and finally determine the products selection, specific analysis.
No matter what industry what water quality, choose the right model is the key, if you have any difficulty on product selection, shandong welldone environmental new materials co., ltd is willing to provide you with free of charge to help at any time.