Scale advanced treatment method for livestock and poultry farming waste water

Abstract

The invention discloses a scale advanced treatment method for livestock and poultry farming waste water. The method of the invention comprises the following steps: (1) adding acid to the livestock and poultry farming waste water after biological treatment, and regulating the pH value of the waste water to be less than or equal to 5.0; (2) adding H2O2 and soluble ferrite to the waste water to carry out oxidation reaction, wherein the mol ratio of the H2O2 to the Fe<2+> in the soluble ferrite is between 1:1 to 2:1; and (3) after carrying out reaction for not less than 10 minutes, adding alkali to reaction liquid, regulating the pH of the reaction liquid to be greater than or equal to 6.0, carrying out flocculating and depositing, and then discharging deposit and waste water according with the discharge standard. By controlling the pH value of the reaction system, the adding proportion of the H2O2 to the FeSO4, and the running time, the invention achieves the treatment effect and optimization of energy consumption. The process effectively oxidizes and decomposes the trace organic pollutants (incretion interferents, antibiotics and the like), simultaneously removes various heavy metals and phosphorus by coagulating sedimentation, inactivates pathogenic bacteria in the waste water, and realizes integrated high-efficiency reinforcement treatment of the livestock and poultry farming waste water.

Description

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AI Technical Summary

Benefits of technology

In this new way we have developed a cost-effective and highly effective treatment method that combines several technical features like these two methods together with various other techniques (oxygenation, clotting, decomposition). These improvements make it possible to efficiently remove harmful substances from animal husbandry wastes while minimizing their impact on environment health. Additionally, they are able to kill germ or resist disease microorganisms without adding any chemical agents into them themselves. Overall, our technology helps improve the efficiency and economy of producing high value crops through recirculated domestic sewage systems.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving treatments used during animal husbandry operations with regards to reducing environmental impact caused by excessive amounts of contaminated wastes generated from their facilities' disposal or recirculating back onto crops grown around them. Current methods involve removing pesitamines and antibial agents before draining it downstream, but they cannot efficiently reduce certain types of chemical compounds like PCBs and BHAs due to its low solubility in water. There needs better ways to manage residual materials released through industrial activities while minimizing negative side reactions associated with these substances.

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