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Solid carbon source for promoting low-temperature denitrification and preparation method and application thereof

A denitrification, solid carbon source technology, applied in chemical instruments and methods, anaerobic digestion treatment, special compound water treatment, etc. The effect of good compatibility, easy utilization of microorganisms, and simple and easy operation

Inactive Publication Date: 2020-01-14
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to provide a solid carbon source that promotes low-temperature denitrification in view of the deficiencies of the prior art, so as to solve the engineering problems that the activity of microorganisms is reduced under low temperature conditions and the operation effect of the biological denitrification process is poor.

Method used

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  • Solid carbon source for promoting low-temperature denitrification and preparation method and application thereof
  • Solid carbon source for promoting low-temperature denitrification and preparation method and application thereof

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Embodiment 1～5

[0022] A solid carbon source for promoting low-temperature denitrification is prepared, comprising the following steps:

[0023] Step 1, according to the mass parts listed in Table 1, weigh the raw materials of each component and mix them in a mixer;

[0024] Step 2: Send the obtained product of Step 1 into a plastic wire drawing machine, process it into filaments, and make it into a braided tape through a weaving machine.

[0025] Each embodiment raw material composition of table 1

[0026]

[0027]

[0028] It should be noted that, among them, the dissolving agent is a mixture of N,N-dimethylformamide, ethanol and water, and the mass ratio of the three is 1:(1~5):(10~20); other components It is a mixed liquid of ferrous chloride, magnesium chloride and water, and the mass ratio of the three is (0.5~1):(0.5~1):10.

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a solid carbon source for promoting low-temperature denitrification. The solid carbon source is prepared from the following components in parts by mass: 40-70 parts of polypropylene master batch, 20-50 parts of degradable polymer, 20-50 parts of naturally degradable biomass, 0.5-1.5 parts of quinones materials, 0.5-1 part of zeatin, 0.5-1 part of a dissolving agent and 3-7 parts of other components. Compared with the prior art, the solid carbon source is non-toxic and is good in biocompatibility. Carbon source substance contained in the solid carbon source is easily used by microorganisms, is beneficial to the rapid recovery of activity of denitrifying bacteria in a low temperature environment, and improves the operation effect of the biological denitrification process. In addition, the invention further provides a preparation method of the solid carbon source for promoting low-temperature denitrification. The operation is simple, and the solid carbon source can be processed into products with specific shapes.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a solid carbon source for promoting low-temperature denitrification, a preparation method and application thereof. Background technique [0002] At present, urban sewage in my country is generally low-carbon source, with a low carbon-nitrogen ratio, and denitrification is limited, especially in winter, the carbon-nitrogen ratio of urban sewage is unstable, and the microbial fillers used in existing processes usually do not have the function of releasing carbon sources. . In addition, temperature has an important influence on the efficiency of biological denitrification treatment. The best conditions for the normal growth of denitrifying bacteria are that the temperature is 20-35°C, and the dissolved oxygen is less than or equal to 0.5mg / L. When the temperature is less than or equal to 15°C, the reproduction rate, metabolic rate and biological activity of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/28C02F2101/163C02F2305/06
Inventor 赵迎新刘朵季民杨知凡
Owner TIANJIN UNIV
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