Eutrophication water body in-situ electromagnetic coupling flocculation precipitation device

Abstract

An eutrophication water body in-situ electromagnetic coupling flocculation precipitation device comprises a storage battery, a solar cell panel and a buoy connected with the solar cell panel. The solar cell panel is connected with the storage battery, a sewage pump, a sludge pump, the storage battery, an air compressor and a magnetic seed feeder are arranged on the upper portion of the buoy, the sewage pump, the sludge pump, the air compressor and the magnetic seed feeder are connected with the storage battery, a flocculation reaction zone is arranged in the middle of the buoy, a sludge settling zone is located below the flocculation reaction zone, a precipitation separation zone is located at the two sides of the sludge settling zone, an eutrophication water body outside the buoy is pumped into the flocculation reaction zone through the sewage pump, the flocculation reaction zone is provided with multiple pairs of anodes and cathodes which are used for electric flocculation, a perforated pipe sparger which is connected with the air compressor is installed on the lower portion of the flocculation reaction zone, the magnetic seed feeder is used for feeding magnetic seeds into the flocculation reaction zone, and powerful magnets are installed on the two side surfaces of the sludge settling zone. According to the eutrophication water body in-situ electromagnetic coupling flocculation precipitation device, the running cost is low, the maintenance is simple, pharmaceutical pollution and solid waste are not produced, the magnetic seeds are easy to recycle, and concentrated sediment can be used as fertilizer directly.

Description

technical field [0001] The invention relates to the field of water resources protection and water environment treatment, in particular to an in-situ electromagnetic coupling flocculation and sedimentation device for eutrophic water bodies. Background technique [0002] The degree and scope of eutrophication of lakes and reservoirs caused by excessive nutrients (mainly nitrogen and phosphorus) is 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. The above-mentioned algae control measures are time-consuming and labor-intensive, with a large investment in machinery or chemicals, and the treatment efficiency is not ide...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the existing in-situ treatment devices or technologies for eutrophic water bodies have major deficiencies: large amount of adsorption materials, difficult recovery, easy passivation of electrodes for electrolysis, and low efficiency of nutrient treatment And it is not easy to recycle and reuse; it is easily affected by the external environment, and the stability and efficiency of microbial nitrogen and phosphorus removal are not high enough; the chemical flocculation input is large, the cost is high, and there is secondary pollution in the sediment, so it is not easy to recycle

At the same time, electrocoagulation does not require the input of flocculation agents, adsorption materials and microorganisms. The removal performance of algae, nitrogen and phosphorus is stable, the efficiency is high, and the precipitation is pollution-free. However, there are also problems such as high energy consumption, easy passivation of electrodes, and difficulty in precipitation and separation. defect

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