Lake eutrophication remediation method

Abstract

The invention discloses a lake eutrophication remediation method, which comprises the following steps of: (1) sequentially arranging a microbial remediation water tank, an absorption water tank and a cooling water tank on lakeshore in a half-burying way; (2) performing microbial remediation; (3) performing absorption; (4) performing cooling; and (5) performing ecological remediation in water. In the microbial remediation stage of the method, microorganisms grow stably in a certain controllable environment so as to achieve high microorganism survival rate; the microorganisms form a biomembrane system in a filler to achieve strain diversity; the microorganism system rapidly reduces the chemical oxygen demand (COD), biochemical oxygen demand (BOD) and ammonia nitrogen of organic pollutants without producing organic sludge and causing secondary pollutions; the method ensures high water purification dephosphorization efficiency; and exception handling for realizing a temperature reduction function is performed in the high temperature environment of a water bloom peak period.

Description

technical field [0001] The invention belongs to the field of lake water purification and restoration for environmental protection, and in particular relates to a lake eutrophication restoration method. Background technique [0002] At present, the pollution situation of lakes in China is serious, more than 80% of the lakes are polluted, many lakes have not reached the water quality standard of Class III, fish and shrimps have basically disappeared, and are replaced by various benthic micro-groups that adapt to pollution, and the water quality of lakes The color and smell have deteriorated to varying degrees, and some lakes have even become sewage receiving bodies. Many well-known lakes are geographically located around large and medium-sized cities, and their pollution has led to a decline in the quality of urban landscapes, seriously affecting the physical and mental health of residents in these areas. Water pollution has led to a decline in the biodiversity of lakes and t...

AI Technical Summary

Problems solved by technology

[0005] The eutrophication of lakes has the following hazards: (1) the color of the water body changes, becomes turbid, and affects the landscape; for example, when the seawater is eutrophic, it sometimes appears red; (2) the water emits bad taste; (3) the dissolved oxygen decreases; (4) A large number of aquatic organisms die, which may be caused by lack of oxygen or obstructed respiration; (5) Some algae produce toxins, which may directly endanger human health; (6) Difficulties in water treatment and deterioration of water quality

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