Pond circulating aquaculture water treatment system

Abstract

The invention relates to a pond circulating aquaculture water treatment system. The pond circulating aquaculture water treatment system comprises a biological purification tank arranged at a central position of an aquaculture pond, wherein a separation well is arranged at a central position of the biological purification tank; a lifting pump is installed in a circulating pump well at a central position of the separation well; the pond circulating aquaculture water treatment system further comprises an ultraviolet disinfection well arranged on an outer side of a biological purification tank wall; an inner end of an embedded water outlet transverse pipe below a foundation slab of the aquaculture pond is connected with a water outlet inner longitudinal pipe, and an outer end is connected with a water outlet outer longitudinal pipe; an upper end opening of the water outlet inner longitudinal pipe is located in the disinfection well and a water outlet of the water outlet outer longitudinal pipe is located below a liquid level of an outer edge of the aquaculture pond; a sump pit is arranged at a central position of the foundation slab of the aquaculture pond and the sump pit is connected with a blow-down pipe; a separation well blow-down pipe is installed between the separation well and the sump pit. Circulating water filtration, biological purification and ultraviolet disinfection treatment are completed in the aquaculture pond, pump power is needed only in a return water lifting process, no power is needed in other circulating and blow-down processes, the power consumption is reduced and the water treatment efficiency is improved.

Description

technical field [0001] The invention relates to a circulating water treatment system, in particular to a pond circulating water aquaculture water treatment system. Background technique [0002] The existing circulating water treatment system for aquaculture ponds includes filter ponds, biological purification ponds and ultraviolet disinfection ponds arranged outside the aquaculture ponds, and each treatment pond is relatively independent and connected in sequence through pipelines. The water in the breeding pond is treated by the filter tank and the biological purification tank in turn, and then enters the ultraviolet disinfection device, and the sterilized water returns to the breeding pond through the pipeline. The main disadvantage of this method is that both circulating water flow and sewage discharge require water pumps as power, which results in high energy consumption and low treatment efficiency. [0003] The existing circulating aquaculture pond sewage system gen...

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is that both circulating water flow and sewage discharge require water pumps as power, high energy consumption and low treatment efficiency

[0003] The existing circulating aquaculture pond sewage system generally relies on the sewage pump to provide power, and needs to be started and closed manually at regular intervals

The main disadvantages are: first, the sewage discharge process needs to consume a lot of electric energy; second, relying on manual operation to stop the system, it is inevitable that there will be misoperation and unreliable defects, and if the system is shut down regularly by automatic control, because the sewage discharge speed is a variable , there will be a problem that the amount of sewage cannot be accurately controlled during the discharge process, resulting in insufficient sewage discharge or low water levels in the breeding pond

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