Breeding excrement film grading biochemical treatment system and process

Abstract

The invention provides a breeding manure film grading biochemical treatment system and process, the breeding manure film grading biochemical treatment system comprises a first-stage black film anaerobic tank and a second-stage black film anaerobic tank, the first-stage black film anaerobic tank is located in the second-stage black film anaerobic tank, the first black film anaerobic tank and the second-stage black film anaerobic tank are provided with a common film top, and the first-stage black film anaerobic tank is communicated with a breeding farm blow-off pipe. The first-stage black film anaerobic tank is communicated with the second-stage black film anaerobic tank through an overflow pipe, a heating pipe is arranged in the first-stage black film anaerobic tank, and a sludge dischargepipe is arranged at the bottom of the first-stage black film anaerobic tank. The breeding manure film grading biochemical treatment system has the beneficial effects of reasonable design, simple structure, safety and reliability, and can solve the problems of difficult operation in winter in cold regions, difficult deslagging of the biogas digester and emission of a large amount of odor.

Description

technical field [0001] The invention relates to the field of animal husbandry, in particular to a biochemical treatment system and process for the classification of breeding excrement and sewage membranes. Background technique [0002] At present, the livestock and poultry breeding industry is developing rapidly. The major breeding groups are building large-scale farms nationwide and enclosing land. In order to solve the problem of manure and sewage in the farms, they have built their own sewage treatment systems accordingly. At present, the typical process For: solid-liquid separation + UASB + AO + oxidation pond, USR (CSTR) + solid-liquid separation + oxidation pond, solid-liquid separation + membrane anaerobic pond + oxidation pond, the above processes correspond to different sewage treatment standards, of which the third treatment process The effluent concentration is the highest, and its corresponding biogas slurry return standard. [0003] The General Office of the Mi...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present invention provides a breeding manure membrane classification with reasonable design, simple structure, safety and reliability, which can solve the problems of difficult winter operation in cold regions, difficult slag discharge from biogas digesters, and large amount of odor emission. Biochemical treatment system and process

Images