Settling biological reaction tank for culture farm wastewater treatment

Abstract

The invention discloses a settling biological reaction tank for culture farm wastewater treatment. Before wastewater microbial reaction, repeated aeration treatment is carried out on wastewater in thetank, and then while biological reaction is carried out on the wastewater in the tank, air outlet control valves are always in a close state under control, a circulating water pump drives wastewaterto participate in circulating flow reaction along a liquid ascending part, an upper communication part, a liquid descending part and a lower aeration part in order, thus realizing water circulation reaction treatment; after a period of treatment, a controller controls the closure of the circulating water pump, then the air outlet control valves and a waste gas filter component are opened for wastegas pumping filtering treatment; after a period of treatment, water circulation reaction treatment is conducted, and the circulation is carried out in order until the wastewater treatment is completed. The disposed waste gas filter component can achieve collection and filtration of the waste gas generated in the tank, thus avoiding direct emission of the waste gas into the atmosphere, and reducing the pollution of waste gas to the atmospheric environment. The settling biological reaction tank has a simple structure, and the use cost is low.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a sedimentation type biological reaction tank for wastewater treatment in farms. Background technique [0002] Farm wastewater treatment mainly uses physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, so as to achieve wastewater recycling and reuse, and make full use of water resources. In the process of wastewater treatment, the biological reaction tank is the waste water An important facility in the process. [0003] A Chinese patent discloses a biological reaction tank with a liquid surface covering (authorized announcement number CN201264945Y). This patented technology sets a covering layer in the pool body that can cover the liquid surface of the pool body, effectively keeping the sewage warm and creating a good growth environment for microorganisms. At the same time, microorganisms can also attach and reproduce o...

AI Technical Summary

Problems solved by technology

[0003] A Chinese patent discloses a biological reaction tank with a liquid surface covering (authorized announcement number CN201264945Y). This patented technology sets a covering layer in the pool body that can cover the liquid surface of the pool body, effectively keeping the sewage warm and creating a good growth environment for microorganisms. At the same time, microorganisms can also attach and reproduce on the covering layer, which can enhance the sewage treatment effect. However, the above patents cannot heat the inside of the pool body. When the temperature is low, the microbial activity in the pool body will decrease, which will affect the reaction. The effect of treatment, and the waste gas generated in the reaction tank cannot be collected and processed, and the waste gas is directly discharged into the atmosphere, which will cause serious air pollution

More importantly, for microorganisms, if the water in the pool cannot circulate, the growth of microorganisms will be inhibited, and even the survival rate will be low, making it difficult to achieve efficient degradation treatment. Flow, it is easy to cause microorganisms to be washed away, affecting the work efficiency of microorganisms

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