Method for removing blue algae in water and reducing algae stench

Abstract

The invention discloses a method for removing blue algae in water and eliminating the odor of the blue algae. The method can be used not only for removing the blue algae existing in lakes, rivers or other water bodies, but also for preventing the water bodies containing the blue algae from giving off odor. The method comprises the following steps: flocculating the blue algae through a flocculant; decomposing the flocculated blue algae and eliminating the odor of the blue algae through an algae removal deodorant; sprinkling a microbe aquatic preparation and putting waterweed or water hyacinth or snails and mussels so as to purify the water; and flocculating, decomposing and deodorizing the blue algae in order, and then purifying the water area polluted by the blue algae through the biological purification technology. The method has the advantages that: the method can be used to not only carry out the environmental protection and harmless removal of the blue algae before the blue algae breaks out massively, but also eliminate the odor of the blue algae, thereby improving the ecological and environmental quality of the water area; and in addition, the method is innocuous and harmless for aquatic animals and human beings, and has low use cost.

Description

technical field [0001] The invention relates to a method for removing cyanobacteria in water and reducing water body odor after the algae dies, in particular to an artificial cyanobacteria treatment method for eliminating cyanobacteria in water bodies such as lakes, rivers or ponds, and belongs to the technical field of water ecological improvement. Background technique [0002] Cyanophyceae is a kind of algae commonly found in water bodies, among which Microcystis individuals have strong reproductive ability, are buoyant, and have an algal odor. In recent years, due to the aggravation of eutrophication in lakes, rivers or ponds, blue-green algae have broken out in large areas in my country, especially when the water temperature exceeds 20°C, blue-green algae can be suspended or accumulated in large quantities on the coast of the water area and on the surface of the water body. A large number of blue-green algae will not only cause hypoxia in the water body and a large number...

AI Technical Summary

Problems solved by technology

The above method has a certain effect on the control of cyanobacteria in small water bodies, but as far as cyanobacteria in large water bodies such as lakes are concerned, the effect is very limited, and the pollution of water quality after the outbreak of cyanobacteria and the odor emitted by the death of algae There is still no effective way to eliminate

The reasons are as follows: ①The cyanobacteria are small and multiply quickly, and they are mostly suspended on the surface of the water body. The cyanobacteria accumulated on the shore can be salvaged, while the cyanobacteria scattered in the water are extremely inefficient or impossible to salvage.

② Planting aquatic plants is an effective means to restore water ecology and control blue-green algae outbreaks. However, most large lakes have low water transparency, deep water levels, and strong wind and waves. It is difficult to plant deep-water plants and emergent plants in large quantities. If the water is not salvaged in autumn and winter, there will be a problem of secondary pollution

③Although methods such as controlling sewage discharge, dredging, fencing, water diversion and fish release are very beneficial to the ecological restoration of water bodies and the reduction of blue-green algae, they require a lot of investment and are difficult to implement, and the effects of algae suppression and deodorization are not ideal

④ Simply splashing biological agents to improve water quality cannot inhibit the growth of cyanobacteria, nor can it eliminate the odor of cyanobacteria

⑤ The existing cyanobacteria treatment method has a huge investment, but the effect is half the result with half the effort, so there are obvious defects and deficiencies in the existing cyanobacteria treatment method