Method of controlling water bloom blue algae

Abstract

The present invention discloses a method for controlling aphanizomenon flos-aquae. Said method includes the following steps: (A) constituting biological island: according to the area and depth of water body to be controlled constituting one-layer or two-layer biological island; (B) building biological island: using nylon, plastics or stainless steel to make flexible or rigid floating island unit frame; (C) filling biological island matrix: in the floating island interior filling light, suspension porous and adsorbability matrix; and (D) placing biological island: placing the floating island whose interior is filled up with matrix into eutrophication water body, the microbe can grow in the porous hollow and light carrier and form biological membrane. It can produce the biological island function of removing phosphorus and removing nitrogen and can improve and raise water quality.

Description

technical field [0001] The invention relates to the field of restoration and treatment of eutrophic water bodies, and more specifically relates to a method for controlling algae blooms, which is suitable for the water quality of eutrophic bays, lakes, reservoirs, rivers and urban landscape water bodies where water blooms occur. improve. Background technique [0002] With the rapid development of economy, the eutrophication of water body is increasing day by day. For eutrophic lakes and reservoirs, cyanobacteria blooms are prone to break out. Algal blooms seriously damage the water ecological environment, accelerate the degradation of lake functions, and ultimately affect the sustainable development of the economy and society. Therefore, China is a country with many lakes, and the eutrophication of lakes and the algal blooms caused by them have become very prominent environmental problems in China, and prevention and treatment are urgently needed. ...

AI Technical Summary

Problems solved by technology

From the perspective of treating the root cause, it mainly includes circular flow interception, reducing the polluted water entering the water body, and improving the water quality of the water body, but this is a relatively long-term and arduous task; Mud method, dragging algae method or adding clay flocculation and sedimentation agent, etc., have high cost and high energy consumption; chemical method is drug algae removal, such as using copper sulfate algicide, chlorine gas and calcium hypochlorite to kill algae , into ozone, etc., long-term use of chemical methods may have problems such as drug safety, short drug effect time, secondary pollution, or adverse effects on other organisms; ecological (biological) methods use biological bacteria or put special Water animals such as silver carp, algae-eating insects, and microbial agents are used to remove algae, but these measures have not effectively solved the problem of blooming blue-green algae

[0004] Since pure chemical and ecological methods cannot effectively control algae blooms, the use of chemical ecology to control algae blooms is gradually becoming a research hotspot, and the main research is the use of allelopathic effects to control algae blooms