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A kind of purifying agent for black and smelly river bottom mud and preparation method thereof

A purifying agent, a technology for Hei-Oi River, applied in the field of Hei-Oi River bottom mud purifying agent and its preparation, can solve the problem of limited effect of the purifying agent, and achieve the effects of high stability, low preparation components, and wide source of raw materials

Active Publication Date: 2022-01-18
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the effect of purifying agent in the prior art is limited, and it is difficult to effectively remove nitrogen, phosphorus, sulfur and organic matter in the water body and black and odorous river bottom mud, and eliminate odors, the invention provides a black odor Purifying agent for river bottom mud and preparation method thereof

Method used

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  • A kind of purifying agent for black and smelly river bottom mud and preparation method thereof
  • A kind of purifying agent for black and smelly river bottom mud and preparation method thereof
  • A kind of purifying agent for black and smelly river bottom mud and preparation method thereof

Examples

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Effect test

Embodiment 1～7

[0033] A preparation method of a black-stinky river bottom mud purifying agent, the preparation method comprising the following preparation steps:

[0034] 1) Wash the mixed porous material and use it as a carrier for standby;

[0035] 2) Disperse the carrier in the Knop culture medium, add the same mass of Thiobacillus carbonnitrogenus, EM bacteria and nitrifying bacteria into the culture medium for expansion and cultivation, and centrifuge at 3000 rpm for 8 minutes to obtain the carrier of the in situ growth fungus on the surface;

[0036] 3) The auxiliary agent is prepared as a modified liquid with a total concentration ≥ 15 wt%, and the carrier of in-situ growing fungi on the surface is placed in the modified liquid and stirred, and then left to stand for a period of time to obtain a purifying agent for black and smelly river bottom mud.

[0037] The specific parameters of Examples 1-7 are shown in Table 1 below.

[0038] Table 1 specific parameters

[0039]

[0040] ...

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Abstract

The invention relates to the technical field of water environment treatment. In order to solve the problem that the effect of purifiers in the prior art is limited, it is difficult to effectively remove nitrogen, phosphorus, sulfur and organic matter in water bodies and black and odorous river sediments, and eliminate odors. , The invention provides a purifying agent for black and odorous river bottom mud and a preparation method thereof. The purifying agent for black and odorous river bottom mud uses a mixed porous material as a carrier, on which fungi grow in situ, and are embedded and fixed by an auxiliary agent. The invention can efficiently remove nitrogen, phosphorus and sulfur elements and refractory organic pollutants in water bodies and black and odorous river bottom mud; it is resistant to acids, alkalis and toxic substances, and has high stability and wide application range; the preparation method is simple, It can be produced efficiently and in batches; the sources of raw materials are extensive, and the preparation components are low.

Description

technical field [0001] The invention relates to the technical field of water environment treatment, in particular to a purifying agent for black and odorous river bottom mud and a preparation method thereof. Background technique [0002] The main pollutants in the black and smelly river bottom mud are heavy metals, nutrients such as N and P, and refractory organic matter. The content can reach hundreds of times that in the water body, and maintain a certain dynamic balance with the water phase. When environmental conditions change, pollutants in the sediment may be released and re-contaminate the water body. Therefore, polluted bottom sludge has seriously threatened human health and the world's environment, and the treatment of polluted bottom sludge is urgent. [0003] Such as the invention patent application of a kind of water purifying agent and preparation method disclosed by the Chinese Patent Office on January 19, 2018, the application publication number is CN10760163...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F11/02C02F101/10C02F101/16C02F101/30
Inventor 孙静亚王鹏麻跃陈庆国
Owner ZHEJIANG OCEAN UNIV
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