Slow-release oxygen microorganism growth promoter suitable for black and odorous water body treatment of small riverways and preparation method and application thereof

Abstract

The invention discloses a slow-release oxygen microorganism growth promoter suitable for black and odorous water treatment of small riverways as well as a preparation method and application thereof. The slow-release oxygen microorganism growth promoter is prepared from the following raw materials in parts by weight: 15 parts of an electron acceptor regulator, 15-30 parts of a pH regulator, 4-10 parts of a microbial growth promoter and 30-60 parts of a slow-release oxygen agent. The slow-release oxygen microorganism growth promoter is used in restoration engineering of black and odorous lakes and riverways, the living environment of microorganisms is improved, and the microbial community structure in a water body is more rapidly and efficiently converted to a structure mainly including aerobic microorganisms; and the growth of nitrogen circulating bacteria is promoted, the restoration of the black and odorous water area ecological environment is facilitated, and the restoration and healthy development of a black and odorous water area ecological system are accelerated.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a slow-release oxygen microbial growth promoter suitable for the treatment of black and odorous water bodies in small rivers, a preparation method and application thereof. Background technique [0002] A large amount of domestic sewage and industrial wastewater are discharged into the water body without treatment, resulting in the rapid accumulation of pollutants in the water. The sediment in the aquatic ecosystem is the sink of pollutants. After the sediment is polluted, a large amount of organic matter is decomposed by microorganisms and consumes a large amount of oxygen. Aquatic organisms are hypoxic. Since the black and odorous water body is anaerobic, anaerobic microorganisms decompose organic matter and produce a large amount of NH 3 、H 2 Odor gases such as S, mercaptans, and volatile organic acids escape from the water surface and enter the atmosphere, causing the water bo...

AI Technical Summary

Problems solved by technology

[0006] A Chinese patent has been applied for and disclosed a preparation method of a slow-release oxygen agent for improving black and odorous water bodies. The slow-release oxygen agent can continuously increase oxygen in the water body, but only through a single way of oxygen release. Oxygenation treatment improves the oxygen-enriched state of the water environment and promotes the growth of aerobic microorganisms. The effect is slow and the treatment effect on ammonia nitrogen, total phosphorus, etc. in polluted water is poor.

However, this growth-promoting agent only contains a large amount of nutrient elements, which cannot improve the anoxic situation in the black and odorous water body in a short period of time, and the nutrient elements cannot play an ideal role in a short period of time.

The microbial community structure in black and odorous water is dominated by anaerobic microorganisms. The microbial community evolves slowly under the action of growth promoters alone, and the active ingredients are released quickly after the direct addition of microbial growth promoters, and the action time is short, making it difficult to maintain the effect. Frequent dosing is required, storage is difficult, and operation is complicated