Preparation method of wastewater degrading purifying agent for livestock and poultry farming

Abstract

The invention discloses a preparation method of a wastewater degrading purifying agent for livestock and poultry farming. The purifying agent is prepared from chitosan, a soluble high polymer material, cationic starch, dimethyl diallyl ammonium chloride, pulverized fuel ash, chromic nitrate, cerous nitrate, aluminum oxide powder and other raw materials. A coating-type double-layer structure is adopted, on an outer layer, chitosan is combined with the water soluble high polymer material, adsorbing and degrading particles of an internal core need to be slowly released into a water body through organic layer pores in the outer layer, in this way, influences on the water body are small, and acting time is delayed; the pulverized fuel ash is used for being treated separately through acid and base and then serves as a substrate supported Cr-Ce compound oxidizing body, in this way, a degrading space is provided for organic pollution, and substances of types capable of being adsorbed and degraded by organic matter are substantially increased. The purifying agent as an effective degrading material is provided for kinds of large-quantity pollutants in the wastewater of livestock and poultryfarming, the method has the advantages of being easy to operate, high in degrading speed, long in maintenance period and others, remarkable social, economic and environmental benefits can be generated, and the purifying agent is widely applied to kinds of livestock and poultry farming enterprises.

Description

technical field [0001] The invention relates to the technical field of wastewater purification, in particular to a preparation method of a livestock and poultry breeding wastewater degradation and purification agent. Background technique [0002] With the development of economy and society, the livestock and poultry breeding industry has become the pillar industry of my country's agriculture and rural economy, and the pollution of livestock and poultry caused by it has become increasingly serious. Pollution from livestock and poultry farming has become the third largest source of pollution after industrial pollution and domestic pollution. Livestock and poultry breeding wastewater has the characteristics of high concentration of COD, SS, NH4+-N, TP and other pollutants, and low C / N. Wastewater with high COD and NH4+-N, direct aerobic treatment will greatly increase the cost of aeration, it is advisable to use anaerobic treatment first to reduce COD load, but the C / N of anae...

AI Technical Summary

Problems solved by technology

As a common adsorption raw material, zeolite usually needs to add silicon and aluminum chemical reagents to adjust the silicon-alumina ratio during its preparation and synthesis, and most of them need to add an organic template agent, but the synthetic zeolite is often a mixture of various crystal phases, and the purity is not too high. It also limits its use as an organic pollution adsorption matrix.