A biological formulation for purifying eutrophic water and its application method

Abstract

The invention discloses a biological preparation formula for purifying eutrophic a water body and a use method of the biological preparation formula. The biological preparation formula comprises the following raw materials in parts by weight: 15-40 parts of photosynthetic bacteria, 20-40 parts of denitrifying bacteria, 18-35 parts of acinetobacter, 8-24 parts of bacillus, 5-20 parts of bdellovibro and 9-23 parts of phosphorus-accumulating bacteria. The use method comprises the following steps: adding water the addition of which is 20 times weight of the raw materials, spraying 180g-280g of the solution to each cubic meter of the water surface of the to-be-processed water body by virtue of a high pressure sprayer, and simultaneously oxygenating the water body by virtue of an aerator; after repeatedly spraying for 5-15 days, carrying out reduced spraying; after 40-60 days, putting aquatic plants and aquatic animals into the water body. By using multiple microorganisms together, the micro ecological system of the water body is improved, the biodiversity of the water body is recovered, and the self-purification capacity of the water body is improved; the use method is easy, feasible and remarkably in effect, and the secondary pollution is avoided.

Description

technical field [0001] The invention relates to the field of water body purification, in particular to a biological preparation formula for purifying eutrophic water body and its application method. Background technique [0002] With the development of my country's economy and the rapid growth of population, the discharge of wastewater is increasing. A large amount of untreated domestic sewage and industrial wastewater is discharged into rivers and lakes, and the receiving water body is enriched in nitrogen and phosphorus, algae grow, the water color is dark green, and a fishy smell is produced, resulting in eutrophication of the water body. [0003] The prevention and control of lake eutrophication has gone through a difficult process from controlling nutrient salts, directly removing algae, to biological regulation, and ecological restoration. It has cost a huge amount of money, but achieved little. Nutrient salt control alone is difficult to be effective. It ignores the ...

AI Technical Summary

Problems solved by technology

Nutrient salt control alone is difficult to be effective. It ignores the nutrient salt cycle in the lake and the interaction between organisms, and it is difficult to completely control the internal cycle and external source pollution. If source and point source pollution is not completely cut off, and external source and non-point source pollution are not properly controlled, even the best measures to control eutrophication will fail

It is also difficult to achieve good results in the control of eutrophication by direct algae removal with chemical agents or physical methods, and because the release of chemical agents into the water will cause secondary pollution, so it can only be emergency, and its long-term toxicological effects on the ecosystem must always be tested , so as not to cause ecological disasters, simply removing algae is a method to treat the symptoms but not the root cause