Diameter-increasing filtering device and method for suspended solids in mariculture

Abstract

The invention belongs to the field of aquaculture engineering, and particularly relates to a diameter-increasing filtering device and method for suspended solids in mariculture. The device comprises an electronic controller, and an electric flocculation reactor, a coagulation stabilizer and a micro-filter which are connected with the electronic controller. The electric flocculation reactor is provided with an electric flocculation reactor water inlet and a water outlet pipeline, and the water outlet pipeline of the electric flocculation reactor is connected into the coagulation stabilizer and used for conducting diameter increasing treatment on the suspended solids of the culture water body; one side of the coagulation stabilizer is connected with an electric flocculation reaction system, and the other side of the coagulation stabilizer is provided with a pipeline connected into a microfiltration control system, so that the suspended solids in the culture water body are subjected to aeration treatment; the micro-filter is used for physically filtering the suspended solids in the culture water body; and the electronic controller is used for controlling the coagulation stabilizer to work so as to realize aeration treatment of suspended solids in the culture water body. The particle size of the suspended solids is increased through an electric flocculation technology, and the removal efficiency of the suspended solids in the culture water body can be improved under the condition that the filtering pore diameter of original filtering equipment is not changed.

Description

technical field

[0001] The invention belongs to the field of aquaculture engineering, in particular to a diameter-increasing filtering device and method for suspended matter in seawater aquaculture. Background technique

[0002] In the process of recirculating aquaculture, a large amount of residual bait and feces will be produced, which are mainly removed by physical filtration. At present, the common physical filtration equipment in the circulating aquaculture system mainly includes microfilters, high-speed filter sand tanks, curved screens, precision filters, etc. Among them, the drum microfilter has strong processing capacity, small footprint, and adaptability. Strong, small head loss and other advantages are favored. As the first step in the water treatment process of the recirculating aquaculture system, physical filtration determines the scale and energy consumption of subsequent water treatment units. The smaller the filter pore size of the drum microfilter, the hi...

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