System for removing antibiotics and estrogen in livestock excrement through Fenton oxidation

Abstract

The invention discloses a system for removing antibiotics and estrogen in livestock excrement through Fenton oxidation. The system comprises a tail gas treatment system, a Fenton reaction system and a dewatering and water discharging system, wherein the Fenton reaction system comprises a reaction tank, a stirrer motor, a telescopic motor, a telescopic stirring shaft, an impeller, a feeding opening, an exhaust opening, a reagent spray head, a material scraping device, a ventilation pipe, a material discharging opening, a heating device, a water inlet, an annular spraying pipe, a temperature sensor, a temperature controller and a support frame; the exhaust opening is connected with the tail gas treatment system; the material discharging opening is connected with the dewatering and water discharging system; excrement slurry is transferred into the dewatering and water discharging system to be subjected to solid-liquid separation. The system disclosed by the invention has the advantages that the equipment flow process is simple and effective; the occupied ground is small; the treatment is fast; the investment cost is low; cleanness and reliability are realized; the tail gas is effectively treated; meanwhile, the antibiotics and estrogen in livestock excrement are removed; the one-time removal effect on sulfadimethoxypyrimidine, estriol, estradiol, bisphenol A and ethinyloestradiol in the livestock excrement can reach 83.37 percent to 96.22 percent.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry manure treatment, in particular to a system for removing antibiotics and estrogen in livestock and poultry manure by Fenton oxidation. Background technique [0002] In my country, with the rapid development of the livestock and poultry breeding industry, the scale of livestock and poultry breeding has continued to expand, and the production of livestock and poultry manure has increased dramatically. At present, the national annual production of livestock and poultry manure is about 3.8 billion tons. The main outlet of such a large amount of livestock and poultry manure is still to return to the field as organic fertilizer. However, as livestock and poultry manure is applied to farmland, a large amount of estrogen, antibiotics, nitrogen, phosphorus, pathogenic microorganisms and other fecal pollutants that may cause harm to the environment also enter the soil and water, posing a pote...

AI Technical Summary

Problems solved by technology

In view of the combined pollution of estrogen and antibiotics in livestock and poultry manure, it is expected to use the broad spectrum of Fenton reagent to oxidize organic pollutants to effectively remove estrogen and antibiotics in livestock and poultry manure, but there is still a lack of Fenton oxidation to remove livestock and poul

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