Combined filler filter dam for treating aquaculture wastewater

Abstract

The invention discloses a combined filler filter dam for treating aquaculture wastewater. The combined filler filter dam comprises a dam body, a composite filler layer and aquatic plants, wherein thedam body is filled with the composite filler layer, and the aquatic plants are planted on the composite filler layer; and the composite filler layer is formed by combining a polyurethane biological filler, a loofah sponge filler and an iron-carbon micro-electrolysis filler. Suspended matters, organic matters, ammonia nitrogen, phosphorus and the like in the aquaculture wastewater are removed through adsorption degradation, nitrification and denitrification of activated sludge in the composite filler, iron-carbon micro-electrolysis and plant absorption composite action. The combined filler filter dam has the advantages of quick start, the stable treatment effect, convenience in maintenance, environment-friendly raw materials, low cost and the like, and is suitable for treatment and purification of aquaculture wastewater.

Description

technical field [0001] The invention belongs to the technical field of micro-polluted water body treatment, and in particular relates to a combined packing filter dam for treating aquaculture wastewater. Background technique [0002] At present, the water use mode of my country's rural decentralized aquaculture industry is still dominated by "big introduction and large drainage", resulting in great consumption and waste of water resources. At the same time, in the process of aquaculture, the excrement of residual bait and fish and shrimp and other aquatic products will increase the concentration of pollutants such as chemical oxygen demand, ammonia nitrogen, and total phosphorus in the aquaculture water body, and the aquaculture wastewater will be directly discharged into nearby waters, which will easily cause pollution in nearby waters. Eutrophication, frequent occurrence of algae in summer, green or yellow water body, flooding of bottom mud and other water body deteriorati...

AI Technical Summary

Problems solved by technology

[0002] At present, the water use mode of my country's rural decentralized aquaculture industry is still dominated by "big introduction and large discharge", resulting in great consumption and waste of water resources

At the same time, in the process of aquaculture, the excrement of residual bait and fish and shrimp and other aquatic products will increase the concentration of pollutants such as chemical oxygen demand, ammonia nitrogen, and total phosphorus in the aquaculture water body, and the aquaculture wastewater will be directly discharged into nearby waters

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