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Sludge deodorant as well as preparation method and deodorizing method thereof

A deodorant and sludge technology, applied in sludge treatment, biological sludge treatment, chemical instruments and methods, etc., can solve problems such as poor deodorization effect, high equipment requirements, and difficult operation and management

Inactive Publication Date: 2018-06-01
IRONMAN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of the first two methods above are: it is relatively straightforward to purify the gas containing sulfide or other odor pollutants; its disadvantage is that it can only treat the odor that has already occurred, and cannot prevent the continued generation of odor from the source , the deodorization effect is not good, and the alkalinity or volume of the sludge is often increased; the requirements for equipment are high, the investment is large, the operation and management are difficult, and secondary pollution is common.

Method used

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  • Sludge deodorant as well as preparation method and deodorizing method thereof
  • Sludge deodorant as well as preparation method and deodorizing method thereof

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preparation example Construction

[0049] Correspondingly, the present invention also provides a kind of preparation method of sludge deodorant, comprising:

[0050] placing the shells in a calcining kiln for calcining to obtain substance A;

[0051] Substance A is pulverized and sieved;

[0052] Adjust the pH of substance A to 5.0-7.5;

[0053] Add polysaccharide and active bacteria to substance A and mix them.

[0054] Wherein, the shell is an oyster shell, but not limited thereto. In addition, the calcination temperature is 200-500 degrees, and the calcination time is 5-9 hours. When the calcination temperature is less than 200 degrees, the substance A cannot form more micropores, which is not conducive to the adsorption of active bacteria and odor; when the calcination temperature is greater than 600 degrees, the temperature is too high, destroying the internal structure of the substance A , reducing the adsorption capacity of substance A. When the calcination time is less than 4 hours, the shell canno...

Embodiment 1

[0065] The shells are placed in a calcining kiln for calcining to obtain substance A, the calcining temperature is 200 degrees, and the calcining time is 9 hours;

[0066] Material A is pulverized and sieved, and the sieve mesh number is 5 mesh;

[0067] Adjust the pH of substance A to 5.0;

[0068] Add polysaccharide and active bacteria to substance A and mix them.

Embodiment 2

[0070] The shells are placed in a calcining kiln for calcining to obtain substance A, the calcining temperature is 250 degrees, and the calcining time is 8 hours;

[0071] Material A is pulverized and sieved, and the sieve mesh number is 10 mesh;

[0072] Adjust the pH of substance A to 5.5;

[0073] Add polysaccharide and active bacteria to substance A and mix them.

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Abstract

The invention discloses a sludge deodorant. The sludge deodorant is prepared from the raw materials in parts by weight: 100 to 200 parts of shell powder, 1 to 5 parts of polysaccharide and 10 to 80 parts of active bacterium. According to the sludge deodorant disclosed by the invention, the shell powder is utilized as a carrier of the active bacterium, and the polysaccharide is added to provide nutrition for the active bacterium to keep activity of the active bacterium; in addition, the shell powder contains elements of Ga, Mg, Na, Zn, Fe, Cu, Mn, B, Mo and the like and also can provide a certain nutrition for the active bacterium; the shell powder has a lot of micropores and can effectively adsorb odor and organic matter in sludge; furthermore, the active bacterium using the shell powder as the carrier can effectively decompose the organic matter in the sludge to form carbon dioxide and water finally; thus, the odor of the sludge can be removed. In addition, a main ingredient of the shell powder is calcium carbonate, so that the shell powder can effectively neutralize a PH value of the sludge.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a sludge deodorizer, a preparation method thereof, and a deodorization method. Background technique [0002] According to statistics, the sludge produced by urban sewage treatment plants across the country is as high as hundreds of millions of tons every year. After dehydration, the sludge from urban sewage treatment plants has a lower water content and enriched nutrients, but at the same time, the concentrations of pathogenic microorganisms, parasite eggs, heavy metals and various toxic and harmful organic pollutants also increase relatively, and emit a strong stench If these problems cannot be solved in time, it will not only hinder the resource utilization of sludge, but also bring serious harm to the environment and human health. Especially the odor problem, because it is easy to spread and significantly pollutes the ambient air, has aroused keen public attention a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02
CPCC02F11/00C02F11/02C02F2303/02
Inventor 杨启豪黄石光黄奕山李乐黄志刚胡松水
Owner IRONMAN ENVIRONMENTAL TECH CO LTD