Sea water, fresh water culture tail water processing up-to-standard discharging recycling system, and purifying method

Abstract

The invention belongs to the technical field of sewage processing up-to-standard discharging and recycling, and especially relates to a sea water, fresh water culture tail water processing up-to-standard discharging recycling system. The sea water, fresh water culture tail water processing up-to-standard discharging recycling system comprises a phosphorus removing water tank, a filter, and a smallmolecule sterilizer; the phosphorus removing water tank is connected with the filter through a first water pipe; a filtering structure is arranged in the filter; the filtering structure is connectedwith the small molecule sterilizer through a fourth water pipe; the filtering structure comprises a plurality of filter cores; each filter core comprises an outer sleeve; each outer sleeve is sleevedwith cylindrical filter cloth; an inner tube is sleeved by each outer sleeve; the side surface of each inner tube is provided with water flow holes. According to the sea water, fresh water culture tail water processing up-to-standard discharging recycling system, simple technology equipment is adopted to realize technical improvement of a conventional culture system, sea water and fresh water fishculture industry structure restructuring is promoted, limit water resource is saved, pollution of aquatic product culture on the environment is reduced, and active promotion effect on development offish culture industry with high requirements on water quality is achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment up-to-standard discharge and reuse, in particular to a sea and freshwater aquaculture tail water treatment up-to-standard discharge and reuse system and purification method. Background technique [0002] With the rapid development of marine fish aquaculture industry represented by flounder and flounder in my country, the traditional "deep well seawater + greenhouse" aquaculture model consumes a large amount of water due to the high daily water exchange rate (1-8 times / day). Underground seawater resources and serious pollution to the environment, at present, the original flounder and flounder fish farming areas are limited by water source conditions, and the sustainable development of the industry is at stake, which has a serious negative impact on the increase of agricultural production and farmers' income. [0003] In order to change the development model of marine fish aquaculture, my co...

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Problems solved by technology

[0006] By adopting the above technical scheme, pump the water containing diatomite through the filter cloth before filtering, so that the diatomite forms a coating on the outer surface of the filter cloth; when filtering, pump the culture tail water in the phosphorus removal water tank through the filter cloth , the coating prevents suspended solids, oil stains and other pollutants in the aquaculture tail water from directly contacting the filter cloth, which ensures the long-term use of the filter cloth and solves the problem of easy blockage of the filter layer, difficult backwashing, and Short service life and other problems are a major breakthrough in filtration technology

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