Polyacrylamide for abattoir wastewater treatment

2018-08-31

Polyacrylamide for abattoir wastewater treatment

Slaughterhouses are found in every city, and the wastewater generated in the slaughterhouse is also a headache for every city. Although the amount of wastewater in the slaughterhouse is not large compared with other industries, it is difficult to concentrate to be treated. The main pollution is organic pollution, the concentration changes greatly, and the uncertainty and process requirements are higher when reprocessing.

Slaughterhouse wastewater characteristics: reddish brown, very heavy astringency, contains a large number of blood, fur, bones, oil, etc., biochemical, water quality and water fluctuations are too large, so not very good treatment.

For a long time, people have relied on biological treatment, which is characterized by high ammonia, phosphorus and phosphorus, resulting in large sludge water and sludge volume. Polyacrylamide is usually used in chemical treatment. It can promote the solid-liquid separation of sludge in slaughter wastewater by adding polyacrylamide flocculation, and can effectively fuse and remove some organic matter, and reduce the pollution load in a short time. It is also possible to adjust the medicine according to the change in water quality, and it also has a certain effect on deodorization. If effective process combination is combined, the effect is better, and it has become the preferred method for slaughter wastewater treatment.

The chemical flocculation method is used to treat the slaughter wastewater, and the air flotation and precipitation are combined. After the air flotation, the polyaluminum chloride is coagulated and the COD can be reduced by more than 30%, and the treatment cost is also reduced.


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