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Method for promoting microbial denitrification

A microbial and denitrification technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. The denitrification process is slow and other problems, so as to achieve the effect of speeding up the denitrification process, reducing secondary pollution and improving the denitrification rate.

Active Publication Date: 2020-06-05
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the actual biological denitrification process is slow, and there will be some accumulation of toxic and harmful intermediate products in the nitrate reduction process, such as nitrite and nitrous oxide
Studies have found that adding an external carbon source such as methanol, ethanol or acetate and electron transfer can promote denitrification bacteria to quickly denitrify. It will increase the cost of the process, and there is a hidden danger of secondary pollution caused by excessive carbon source dosing

Method used

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  • Method for promoting microbial denitrification
  • Method for promoting microbial denitrification
  • Method for promoting microbial denitrification

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Embodiment Construction

[0020] The implementation of the present invention is described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementations, not for limiting the protection scope of the present invention. The test methods for which specific conditions are not indicated in the fo...

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Abstract

The invention discloses a method for promoting microbial denitrification. The microbial denitrification is promoted through the synergistic effect of paracoccus denitrificans and propionibacterium freundii. The method has the characteristics of shortening the denitrification process, increasing the denitrification rate, reducing the accumulation of intermediate products, avoiding secondary pollution and the like.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a method for promoting microbial denitrification. Background technique [0002] Nitrogen pollution is a challenging global environmental problem. In the current methods of nitrogen removal, because physical and chemical methods to remove nitrate are relatively expensive and prone to secondary pollution, therefore, the use of biological methods to remove nitrate pollution in water has been increasingly valued by people, and biological methods to remove nitrate Pollution is more efficient and convenient. However, the actual biological denitrification process is slow, and there will be accumulation of some toxic and harmful intermediate products in the nitrate reduction process, such as nitrite and nitrous oxide. Studies have found that adding an external carbon source such as methanol, ethanol or acetate and electron transfer can promote denitrification b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F3/34
CPCC02F3/2806C02F3/34
Inventor 陈银广张芷琪
Owner TONGJI UNIV
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