Environment-friendly slaughter sewage treatment system

Abstract

The invention provides an environment-friendly slaughter sewage treatment system. The environment-friendly slaughter sewage treatment system comprises a grating tank, an oil separation sedimentation tank, an acid-base regulating tank, a coagulation air floatation tank, a hydrolysis acidification tank, a contact oxidation tank, a sedimentation tank and a disinfection tank which are arranged in sequence. The slaughter sewage is effectively treated by combining physicochemical method and biochemical method, and the environment-friendly slaughter sewage treatment system has the following technicaladvantages: 1, the slaughter sewage treatment device is smaller than an activated sludge tank in size, strong in adaptability, good in impact load resistance and stable in effluent quality, and doesnot generate sludge bulking; 2, the organic matter removal rate is high, stability and reliability are achieved, meanwhile, chemicals do not need to be added, subsequent cost is saved, and operation cost is reduced; 3, hydrolytic acidification can effectively treat blood color of sewage, decompose macromolecular organic matters and reduce subsequent treatment load; 4, the precipitation effect is ideal, and better effluent quality can be obtained; and 5, disinfection treatment is carried out, and the removal rate reaches 99.4% or above.

Description

technical field [0001] The invention belongs to the technical field of waste water environmental protection treatment, and in particular relates to a slaughter sewage environmental protection treatment system. Background technique [0002] Slaughter wastewater mainly contains more suspended pollutants such as hair, feces, blood clots, visceral meat scraps, and animal fats. It has an unpleasant stench, high content of suspended solids, high content of organic matter, and good biodegradability. High-concentration organic matter is not easy to degrade, and it is difficult to treat. The nutrients in slaughter sewage are mainly nitrogen and phosphorus, of which nitrogen mainly exists in the form of organic matter or ammonium salt, and phosphorus mainly exists in the form of phosphate, which needs to be treated before it can be discharged. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an environmental protection...

AI Technical Summary

Problems solved by technology

[0002] Slaughter wastewater mainly contains more suspended pollutants such as hair, feces, blood clots, visceral meat scraps, and animal fats. It has an unpleasant stench, high content of suspended solids, high content of organic matter, and good biodegradability. High-concentration organic matter is not easy to degrade, and the treatment is difficult. The nutrients in slaughter sewage are mainly nitrogen and phosphorus, of which nitrogen mainly exists in the form of organic matter or ammonium salt, and phosphorus mainly exists in the form of phosphate, which needs to be treated before it can be discharged

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