An integrated device for solar eutrophication water treatment and phosphorus recovery

Abstract

The invention relates to a solar eutrophicated water body treatment and phosphorus recovery integrated device which comprises a solar panel and a float bowl connected with the solar panel, wherein the float bowl is provided with a sewage pump, a sludge pump, a storage battery and an air compressor; the solar panel is connected with the storage battery; the sewage pump, sludge pump and air compressor are respectively connected with the storage battery; the middle part of the float bowl is provided with an anaerobic region; the bottom of the anaerobic region is communicated with a sludge settling region through a sludge-water mixing region; the upper part of the anaerobic region is communicated with an anoxic region on the periphery of the anaerobic region; the upper part and lower part of the anoxic region are respectively communicated with the aerobic region; a biological rope is respectively suspended in the anaerobic region and aerobic region; the bottom of the aerobic region is provided with a microporous aeration head connected with the air compressor; and both sides of the upper part of the float bowl are respectively provided with a drainage port communicated with the aerobic region. The device does not need to treat the water body after extracting the water body to the bank side, has the advantages of high fieldwork capacity, low operating cost, no investment into chemical agents and materials, and no generation of solid wastes, and is capable of removing organic matters and nitrogen in the water body and recovering phosphorus in the form of sludge.

Description

technical field [0001] The invention relates to the field of water resource protection and water environment treatment, in particular to an integrated device for solar eutrophication water treatment and phosphorus recovery. 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. Taking lakes as an example, the proportions of eutrophication in the 1970s, 1980s and 1990s were 41%, 61% and 77% respectively. The lake water quality survey results from 2007 to 2010 showed that 85.4% of large shallow lakes in my country exceeded the eutrophication standard, and 40.1% of them were severe eutrophication. The eutrophication of lakes and reservoirs deteriorates water quality, induces a "water quality" water shortage crisis, reduces the comprehensive utilization efficiency of water resources and the ability to guarant...

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the present invention, the inventors found that: existing eutrophic water body treatment and phosphorus recovery technology has relatively large deficiencies, especially phosphorus recovery, which is limited to domestic sewage, industrial wastewater and sludge with high phosphorus concentration. Adsorption or crystallization processes are often used, which require the construction of supporting facilities and the consumption of reagent materials. The operating costs are high, and it is difficult to popularize and apply to the treatment of natural eutrophic water bodies.

Images