Water treatment method of circulating-water culture system
A recirculating aquaculture and water treatment technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. High energy consumption and other problems, to achieve the effect of strong adaptability, low investment in infrastructure, and low energy consumption in operation
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[0009] The method for implementing the water treatment of the recirculating aquaculture system (see the accompanying drawings), firstly fill the filling type biological flocculation sedimentation unit 2 with the aquaculture water to be treated, then add the domesticated activated sludge with strong adsorption and flocculation ability, and the sludge concentration After the high-density three-dimensional elastic packing layer 3 is successfully filmed, the normal water inflow begins; the aquaculture water to be treated flows directly from the lower water inlet 1 into the filled biological flocculation sedimentation unit 2, and the culture The water flows upward through the high-density three-dimensional elastic packing layer 3, the hydraulic retention time is 60min, and the dissolved oxygen concentration is lower than 0.5mg / L. In the packed bioflocculation precipitation unit, under low oxygen conditions (DO<0.5mg / L), bacteria absorb soluble substances and convert them into cytopl...
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