Immobilized microbial particle as well as preparation method thereof and method for efficiently treating black and odorous water body therewith

Abstract

The invention discloses an immobilized microbial particle as well as a preparation method thereof and a method for efficiently treating a black and odorous water body therewith. The preparation methodcomprises the following steps: adding a pre-concentrated microorganism material into a dried calcium peroxide powder, adding a binding agent, uniformly mixing the mixture, making the mixture into circular, cylindrical or square particles with a direct powder compression method or a dry granulation compression method and natural drying, so as to obtain immobilized microbial particles. Degrading bacteria having efficient purification effect on the black and odorous water body are embedded into the immobilized microbial particles formed by mixing calcium peroxide, the binding agent and the microorganism material, and dissolved oxygen in black and odorous wastewater can be quickly improved while the higher bacteria concentration is maintained, so that the black and odorous water body is efficiently purified. The method for efficiently treating the black and odorous water body has the advantages of being stable in treatment effect, having no secondary pollution, facilitating transportationand solving the problems that the black and odorous water body is low in dissolved oxygen and low in inoculant treatment efficiency. The technology is efficient and practical and plays a significantrole in the environmental engineering governance aspect.

Description

technical field [0001] The invention belongs to the technical field of water treatment using immobilized microorganisms to treat black and odorous water bodies, and relates to an immobilized microbial particle and a preparation method thereof, and a method for efficiently treating black and odorous water bodies with the immobilized microbial particles. Background technique [0002] The root of the black and odorous water body is that a large number of pollutants, such as organic matter and nitrogen and phosphorus nutrients, are enriched in the bottom mud of the water body. These pollutants are continuously released to the upper layer of the water body and become a secondary pollution source of water body pollution. It is an effective way to fundamentally solve the black and odor pollution of the water body to effectively control the bottom sediment of the water body and make it completely inorganic. [0003] At present, the technologies used for the restoration of black and ...

AI Technical Summary

Problems solved by technology

The existing bioremediation technology generally sprinkles a large amount of bacteria into the black and odorous water body, relying on the self-domestication and self-repair ability of the bacteria to restore the water body, or artificially increases the dissolved oxygen in the water body by increasing the aeration of the water body to improve the water quality Conditions to improve the efficiency of biological treatment, but the problem is that the bacterial agent is seriously lost with the water body, and the expected effect cannot be produced within a limited time or within the watershed. In addition, the lack of dissolved oxygen in the water body is the main factor restricting the effect of microorganisms and water purification.

[0007] The existing immobilized microorganism technology has a certain effect in the treatment of water bodies with less serious organic pollution, but there are some defects in the treatment of black and odorous water bodies with particularly serious organic pollution, and the effect is not satisfactory. The main reason is that the dissolved oxygen in the water body is low ( In particular, the aeration conditions of the sediment are poor), and it is difficult for microorganisms to exert their due activity and function in a water environment with low oxygen content, resulting in poor microbial treatment effect

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