Water quality improving method by algae control of compound ecological environment-protection algae control agent

Abstract

The invention discloses a water quality improving method by algae control of a compound ecological environment-protection algae control agent, which comprises the following steps: A. area selection: girding an experimental zone; B. algicide preparation: diluting hydrogen peroxide with tap water and arranging the hydrogen peroxide in the shade; C. flocculant preparation: preparing industrial-gradepolyferric sulfate into a solution and diluting with water; D. lake sediment preparation: taking pythmic sediments, drying and crushing the sediments, preparing a turbid liquid, and stirring silt sunk into the bottom to the upper layer; E, the dosage and spraying condition of the algicide: uniformly spraying the diluted H2O2 in proportion in an enclosure with surface water bloom and spraying; F. sediment turbid liquid spraying: spraying the turbid liquid in proportion on the water surface in an atomization mode; and G. flocculation sedimentation implementation: sprinkling the polyferric sulfate solution into the water, stirring, standing still and settling. The method is simple and convenient to operate, has low cost, increases transparency, has obvious substrate improvement effect, has zero pollution on the water remediation, and has high environmental, social and economic benefits.

Description

technical field [0001] The present invention relates to the technical field of the removal of cyanobacteria blooms in eutrophic lakes and the improvement of water quality, and more specifically relates to a method for improving water quality and bottom quality by controlling algae with a compound ecological and environmental protection algae control agent, which is suitable for the accumulation of cyanobacteria blooms in eutrophic lakes Significant water quality improvement on the windward shore or bay. Background technique [0002] Removing algae and controlling its growth is a difficult problem in the restoration and protection of lakes and reservoirs. At present, there are three main types of technologies adopted internationally: ①Engineering methods: dredging sediment, mechanical algae removal, water diversion and silting, etc., but the symptoms are not cured;② Physical method: Ultrasonic algae removal, but it consumes a lot of energy and does not fundamentally inhibit t...

AI Technical Summary

Problems solved by technology

[0002] Removing algae and controlling its growth is a difficult problem in the restoration and protection of lakes and reservoirs. At present, there are three main types of technologies adopted internationally: ①Engineering methods: dredging sediment, mechanical algae removal, water diversion and silting, etc., but the symptoms are not cured;② Physical method: Ultrasonic algae removal, but it consumes a lot of energy and does not fundamentally inhibit the activity of algae, and the flocculation effect of fragmented groups and single cells is worse, and the proliferation ability after resuspension under wind and waves is stronger; ③Biological methods: such as Higher submerged plants and emergent plants are planted on the windward side of the lake, but the transparency of the water body and the anaerobic state of the substrate have not been improved, and the survival rate is very low. Although the time is long, the effect is slow, and it is greatly affected by the natural climate.

At present, traditional chemical algicides are added, iron salts are added to promote the precipitation of phosphorus, and lime is added to denitrify, etc., but the dosage is large and it is easy to cause secondary pollution and the transparency is limited.

This flourishing method of killing algae with chemical reagents was once stranded