Method for restoring eutrophic water

Abstract

The invention discloses a method for restoring eutrophic water and relates to the field of water purification. The method comprises the following steps: prefabricating a floating plate, a plurality of suspending ropes, a plurality of shell class suspending baskets, a plurality of aerobic microorganism filler layers and a plurality of anaerobic microorganism filler layers, wherein each aerobic microorganism filler layer comprises 20-40 parts of nitrobacteria, 1-20 parts of saccharomycetes, 5-20 parts of pseudomonas, 5-25 parts of micrococci and 5-15 parts of zoogloea; each anaerobic microorganism filler layer comprises 10-30 parts of photosynthetic bacteria, 10-30 parts of brevibacteria, 5-20 parts of bacilli, 5-15 parts of zoogloea and 1-10 parts of saccharomycetes; one to six shell class suspending baskets, one to two aerobic microorganism filler layers and one to two anaerobic microorganism filler layers are sequentially fixed on each suspending rope. The method is relatively simpler, can realize the purification of the eutrophic water, and is low in cost and long in duration.

Description

technical field [0001] The invention relates to the field of water body purification, in particular to a method for repairing eutrophic water body. Background technique [0002] In recent years, with the development of industry and the rapid growth of my country's economy, the pollution of rivers and lakes caused by industrial waste has become more and more serious. [0003] Due to the poor fluidity and weak self-healing function of water bodies in rivers, lakes and reservoirs in the city, a large amount of industrial and domestic waste containing N, P, S and toxic substances is discharged in, causing water quality to deteriorate, and planktonic algae The large number of reproductions has caused the ecological balance of urban water bodies to be destroyed. [0004] The survey shows that more than 90% of the rural water bodies in the Yangtze River Delta have lost their basic functions, urban and rural rivers have been severely degraded due to pollution and ecosystems, and th...

AI Technical Summary

Problems solved by technology

[0011] (1) The pollutant components contained in the polluted water body are relatively complex, and the content and composition of pollutants at different depths in the water body are different. Aquatic plants can only purify the organic matter in the upper layer of the water body, and it is difficult to decompose the pollutants in the middle and lower layers of the water body; In the microbial filler for purifying water, a single microorganism is usually used, and each microorganism can only specifically absorb some pollutants. Therefore, the existing ecological floating bed purification effect is not ideal

[0012] (2) Aerobic bacteria in microbial fillers need a lot of oxygen when they grow and reproduce. Due to the low oxygen content in the water body, it is easy for aerobic bacteria to survive. After the microorganisms die, new microbial fillers need to be replaced. higher cost

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