Micro-dynamic in-situ collection and separation integrated device for surface water algae and nutritive salt

Abstract

The invention provides a micro-dynamic in-situ collection and separation integrated device for surface water algae and nutritive salt. The device comprises a solar cell panel and a floating platform connected with the solar cell panel, wherein a surface algae-laden water collection unit, an algae-laden water flocculation reaction unit, a standby flocculant feeding unit, an algae-laden water flowing control unit, an alga and nutritive salt separation unit, a clean algae-laden water discharging unit and a floating platform power driving unit are carried on the floating platform. According to the device, high-density surface algae-laden water does not need to be pumped to a shore for treatment, addition of a flocculant chemical and microbial carriers for removal of nitrogen and phosphorus are not required, mechanical concentration of the algae-laden water is not required, the removal effect of algae and nutritive salt such as nitrogen, phosphorus and the like is good, little power is consumed, the operation cost is low, maintenance is simple and no chemical pollution or solid waste is produced.

Description

technical field [0001] The invention relates to the field of water resource protection and water environment treatment, in particular to a micro-dynamic in-situ collection and separation integrated device for surface water algae and nutrient salts. Background technique [0002] Excess nutrients (mainly nitrogen and phosphorus) cause the rapid growth and accumulation of algae in the surface water, resulting in eutrophication of the lake and reservoir water. At present, the occurrence degree and scope of eutrophic water bodies are still developing rapidly in my country, and the situation is very severe. The prevention and control of eutrophication in water bodies usually adopts a combination of algae control and excess nitrogen and phosphorus reduction. For algae control, salvage algae removal, mechanical algae removal or chemical algae removal are commonly used; excess nutrients are mostly diluted with water, plant absorption and purification. Generally speaking, physical c...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the existing equipment or technology for in-situ treatment of algae and nutrient salts in eutrophic water bodies has relatively large deficiencies: (1) In terms of algae collection and separation, it cannot be collected and accumulated on the surface in a targeted manner The high-density algae in the water body causes a large amount of subsequent dehydration and low algae separation efficiency; (2) the concentration of nutrients such as nitrogen and phosphorus in eutrophic water is low, and the efficiency of microbial nitrogen and phosphorus removal is low, which is easily affected by environmental conditions such as temperature. The water separation effect of nutrients such as phosphorus is limited; (3) Potassium permanganate, iron salt, ultrasonic wave, microfiltration and other methods are used to separate or kill algae in algae water, and the consumption of chemicals and energy consumption are high, and it is easy to cause Algae toxin pollution; (4) Single algae removal or nutrient removal, lack of synchronous collection and separation of algae and nutrient salts from surface water

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