Black and odorous bottom mud repairing agent and application thereof

Abstract

The invention discloses a black and odorous bottom mud repairing agent and application thereof. According to the invention, a biological and physical combined method is combined, the novel efficient black and odorous bottom mud repairing agent is prepared from calcium peroxide, diatomite, polyacrylamide, starch, amylase, EM bacteria, a microbial accelerator, fine sand, sodium alginate and other materials. The polluted water body, especially black and odorous water body and black and odorous bottom mud therein, can be effectively treated, COD, total phosphorus content and ammonia nitrogen concentration in the black and odorous water body are lowered evidently, ammonia nitrogen concentration and sulfide concentration in the bottom mud are lowered evidently, and the black and odorous bottom mud repairing agent takes effect quickly, has a trace and efficient effect and is extremely high in economic value and practical value.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a new type of high-efficiency black and odorous bottom mud restoration agent and its application Background technique [0002] The main reason for the black and odorous water body is that organic pollutants are excessively discharged into the water body, and microorganisms decompose the organic pollutants, and at the same time consume DO (dissolved oxygen, dissolved oxygen) in the water body, so that the concentration of DO (dissolved oxygen) in the water body is reduced or even Completely disappear, resulting in black and odorous water body; in addition, excessive content of N and P substances in the water body will also cause the water body to become black and odorous. [0003] Sediment, as the sink and source of water pollutants, plays an important role in water quality. Due to the severe hypoxia in the black and odorous water body, the organic matter in the water bo...

AI Technical Summary

Problems solved by technology

However, this kind of restoration agent does not cure the root cause. It can only solidify the inside of the sediment to ensure that the internal pollutants are locked and not precipitated, but it does not completely reduce the pollutants.

In order to eliminate pollutants, superimposed chemical methods are usually used to remove chemical pollutants adsorbed by sediment or remediation agents by chemical reactions, but the extensive use of chemical reagents will cause secondary pollution of the environment and water bodies

For remediation agents with microorganisms, the black and odorous sediment environment is a complex environment. Different microorganisms have different effects in different environments. Most of the microorganisms are not targeted, resulting in poor treatment effects.

[0005] In addition, the restoration of black and odorous water bodies is often done with water. The sediment restoration method in traditional projects is to discharge the water to expose the sediment and carry out engineering operations, which requires a lot of mechanical work, and the investment and time costs are high.

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