Integrated sewage treatment recycling equipment with pretreatment tank

Abstract

The invention provides integrated sewage treatment recycling equipment with a pretreatment tank and relates to the technical field of treatment of livestock and poultry breeding wastewater. The equipment structurally comprises a tank body, wherein the interior of the tank body is separately provided with a sewage treatment tank and an equipment room, and a deep treatment system is arranged in theequipment room. A liquid inlet pipe enters the tank body and communicates with the sewage treatment tank, the sewage treatment tank is connected with the deep treatment system through a pipeline, thedeep treatment system communicates with a liquid outlet pipe, the sewage treatment tank comprises the pretreatment tank, a first stage anoxic tank, a first stage aerobic pool, a second stage anoxic tank and a second stage aerobic pool, the first stage anoxic tank, the first stage aerobic pool, the second stage anoxic tank and the second stage aerobic pool communicate with one another sequentially,and the bottom of the pretreatment tank is of a mud bucket structure. According to the integrated sewage treatment recycling equipment with the pretreatment tank, anaerobic digested effluent of a breeding farm is treated through a two-stage A / O, MBBR and MBR combined process, so that effluent of the equipment reaches recycled-water water quality standards, and zero discharge of wastewater is achieved; through additionally arranging the pretreatment tank and corresponding refluxing devices and collecting devices, the equipment has relatively good treatment effect on influent digested effluentof different water qualities and is high in applicability, and thus, popularization and application are facilitated.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding wastewater treatment, in particular to an integrated sewage treatment and reuse device with a pretreatment tank. Background technique [0002] With the increasing demand for meat products and the rapid development of large-scale livestock and poultry breeding industry, the pollution problem of livestock and poultry breeding has become more and more prominent. To this end, the state has successively issued a number of standards and regulations for the prevention and control of pollution from livestock and poultry breeding, focusing on the prevention and control of pollution from livestock and poultry breeding. [0003] Existing large-scale livestock and poultry farms usually adopt a process route of "solid-liquid separation-anaerobic treatment-aerobic treatment". However, most of the treatment effects are not good, the wastewater treatment facilities cannot operate normally,...

AI Technical Summary

Problems solved by technology

However, most of the treatment effects are not good, the wastewater treatment facilities cannot operate normally, and a large amount of waste liquid is directly discharged without effective treatment, seriously polluting the ecological environment

Due to the irregular discharge of excrement from livestock and poultry farms and large fluctuations in water quality, in order to save construction costs in most livestock and poultry farms, the existing biogas digesters are usually black film ponds or simple anaerobic tanks, and the treatment effect is poor. , the water quality of the effluent biogas slurry varies greatly, which has a great impact on the subsequent treatment process

Moreover, the water quality of anaerobic biogas slurry in different livestock and poultry farms varies greatly, so that the subsequent treatment system needs to design a targeted treatment process according to the water quality of the biogas slurry. The initial design workload is heavy and it is difficult to mass-produce and popularize

[0004] In addition, the existing treatment facilities usually adopt the form of civil construction. Once the farm needs to be relocated, the treatment facilities can only be abandoned or dismantled, resulting in a great waste of resources and economic losses for farmers

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