Modularized pig manure wastewater distillation recycling treatment system and method

Abstract

The invention discloses a modularized pig manure wastewater distillation recycling treatment system and method. According to the modularized pig manure wastewater distillation recycling treatment system, the moisture content of pig manure wastewater is reduced through a vacuum distillation technology, bacterial pathogens in the pig manure wastewater are killed through high temperature, and the pig manure biochemical treatment efficiency is effectively improved; and the generated distilled water can be used for flushing a pigsty after being recycled, so that the cyclic utilization of water resources is realized, the water resources are greatly saved, and meanwhile, the subsequent wastewater treatment capacity is also greatly reduced. In addition, steam condensed water discharged by a pig manure heater is collected and then recycled to the water supply tank of the steam boiler, so that the usage amount of soft water is reduced.

Description

technical field [0001] The invention relates to the technical field of pig manure treatment, in particular, a modular pig manure wastewater distillation and reuse treatment system is designed and invented for the process link of dehydration and concentration of pig manure wastewater. Background technique [0002] With the rapid development of large-scale pig farms, the discharge of pig manure and wastewater is increasing. With a group of 2,400 pigs in a pig farm, the daily discharge of sewage will reach 20t / d. Large-scale pig manure wastewater treatment has brought a series of increasingly severe environmental problems. [0003] Pig farm wastewater mainly comes from pig manure and pig pen flushing water, which contains feces, urine, feed, etc. The main characteristics of pig manure wastewater are: high ammonia nitrogen, high organic pollutants, high phosphorus content, and many suspended solids. It also contains disinfectant water, residual pesticides, and various zoonotic ...

AI Technical Summary

Problems solved by technology

If these pollutants are not properly treated, once they enter natural water bodies and farmland, they will pollute water bodies and farmland, and easily cause infectious diseases in pig farms

[0004] At present, there is no fixed treatment process for the treatment of pig farm wastewater, and the traditional "anaerobic digestion + aerobic biochemical" method is generally used, but because the water content of pig manure wastewater is very large, the anaerobic effluent has poor The mud is easy to float, and the waste water discharge is difficult to meet the standard. However, the existing pig manure treatment system cannot work continuously, the treatment capacity is limited, and the efficiency is low.

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