Method for handling waste water of domestic animals and poultry by using mineralization garbage

Abstract

A process for using mineralized garbage to treat the sewage generated by domestic animal and fowls includes such steps as filling the mineralized garbage which has been buried for 5-40 years on the reaction bed, pumping the high-concentration sewage while has been anaerobically treated and filtered onto the top of said reaction bed for spraying it, reaction, and draining the water in water pool. Its advantage is high effect on removing chromaticity, SS, CODcr, BOD5, NH3-N, P and colibacillus.

Description

technical field [0001] The invention relates to a process for purifying feces and waste water produced by raising pigs, cattle, sheep, chickens, ducks, geese and other livestock and poultry. Background technique [0002] As the population increases, so does the need for animal protein to meet the needs of the human body. Especially since the Cailanzi Project was implemented in China in the 1980s, the scale and output value of livestock and poultry breeding have undergone tremendous changes. The output of meat, milk and poultry eggs is increasing by more than 10% every year, and the output has surpassed that of the United States, and has remained the first in the world for several consecutive years. The development of poultry and livestock breeding has greatly enriched market consumption and met the needs of people's lives, but it has also brought about environmental pollution that cannot be ignored. Experts believe that raising one pig, one cow, an...

AI Technical Summary

Problems solved by technology

[0006] C. The effect of phosphorus and nitrogen removal is very poor, basically unable to meet the standard

[0007] In recent years, more and more large-scale livestock and poultry establishments have adopted anaerobic treatment + aerobic treatment process for wastewater: first use high-efficiency anaerobic reactor (UASB) as the anaerobic treatment unit, and the COD removal rate can reach 70% -80%, then use activated sludge or biological contact oxidation as the aerobic treatment unit, the COD removal rate can reach 50%-60%, and finally use the oxidation pond as the final effluent modification unit. To meet the national third-level emission standards, but to meet the "Livestock and Poultry Breeding Pollutant Discharge Standards", it is necessary to add an aerobic treatment or anoxic denitrification treatment unit, which will undoubtedly increase infrastructure investment and operating costs