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Application Of Polyacrylamide In Chicken Wastewater Treatment In Chicken Factory

- Oct 09, 2017 -

The pollution of water is becoming more and more serious. In the chicken coop, chicken manure and mixed with the residual food, eating drops of water and fecal flushing water blending to form chicken manure mixture. Chicken house often washed, the incubation room is also regularly washed disinfection, resulting in a lot of waste water. Chicken manure wastewater not only contains high concentration of organic pollutants and high concentrations of solid suspended solids, and rich in nitrogen, phosphorus and other nutrients, ammonia nitrogen content, to chicken manure wastewater biochemical treatment, especially denitrification treatment is very difficult. The use of clean production, dry and wet separation, dry chicken manure using aerobic composting treatment, waste water using anaerobic, aerobic biological treatment and oxidation pond combination of comprehensive utilization.

Chicken farm slaughtering waste water from the slaughtering workshop, mainly including pre-slaughter of livestock waste water; hot hair, cleaning carcass waste; cleaning visceral waste water; rinse the workshop floor, equipment, waste water; However, after pretreatment such as coagulation sedimentation, flotation and other processes to remove solid impurities, the use of biochemical treatment can generally meet the discharge standards. Cationic polyacrylamide is used in the treatment of biochemical sludge treatment sections.

Chicken farmland slaughter chicken waste water in the ammonia nitrogen, COD content is high, after biochemical treatment will produce a lot of sludge, in the pressure filtration dehydration process, the proposed use of cationic polyacrylamide.

Due to the relatively high content of organic matter in water quality, cationic polyacrylamide with higher molecular weight and higher ion content is generally used. Treatment of this water quality must be handled with strong ions can be. Because the concentration of suspended solids in this kind of waste water is not high, and does not have the performance of coagulation, in the precipitation process, adding the amount of polyacrylamide, the floc does not change the shape, do not adhere to each other, each independently complete the precipitation process, So can achieve better results.

In the use of cationic polyacrylamide treatment of chicken factory slaughter of sewage, the need to pay attention to the amount of polyacrylamide dosage and the use of storage methods. It is suggested that the technical personnel of the field should select the polyacrylamide model with better flocculation effect and faster sedimentation rate according to the specific situation of the sewage.

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