Pig breeding wastewater treatment system and application method

Abstract

The invention provides a pig breeding wastewater treatment system and an application method. The pig breeding wastewater treatment system comprises a pretreatment system, an anaerobic treatment system, an aerobic treatment system, an advanced treatment system, a sludge treatment system, an industrial control computer and a full-automatic control system, wherein the industrial control computer is used for controlling power equipment in each treatment system to operate; the pretreatment system, the anaerobic treatment system, the aerobic treatment system and the deep treatment system are sequentially connected, the sludge treatment system is simultaneously connected with the pretreatment system and the aerobic treatment system, and the industrial control computer and the full-automatic control system are respectively connected with the pretreatment system, the anaerobic treatment system, the aerobic treatment system, the deep treatment system and the sludge treatment system. According to the pig breeding wastewater treatment system and the application method provided by the invention, the problems that the existing pig breeding wastewater is difficult to treat, the treatment process is immature, the effluent standard reaching is unstable, the process operation cost is high and the like are solved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a pig breeding wastewater treatment system and an application method. Background technique [0002] With the rapid development of the national economy, my country's animal husbandry and breeding industry has also gradually grown, and a large number of intensive and large-scale farms have been built one after another, which has also brought about relatively concentrated environmental pollution problems. Methane, hydrogen sulfide, ammonia and other malodorous gases in the air of pig farms pollute the surrounding and downwind air. A large number of liquid metabolites, pig house flushing wastewater and some scattered pig feed make the pig farm wastewater polluted seriously. Studies have shown that the CODcr in large-scale pig farm wastewater is as high as 4000-20000mg / L, the BOD is as high as 1500-6000mg / L, the concentration of ammonia nitrogen is 450-1500mg / L, and the c...

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Problems solved by technology

[0006] The technical problem mainly solved by the present invention is to provide a pig breeding wastewater treatment system and application method, which solves the problems that the existing pig breeding wastewater is difficult to handle, the treatment process is immature, the effluent is not up to standard, and the process operation cost is high.

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