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A composition capable of promoting denitrification by nitrifying bacteria and its application

The technology of a composition and nitrifying bacteria is applied in the direction of adding compounds to stimulate growth, bacteria, water pollutants, etc., which can solve the problems of high metal salt content of promoters and secondary pollution of sewage, shorten the treatment time, and improve the removal rate. Nitrogen activity, the effect of promoting smooth progress

Active Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the metal salt content in the accelerator is relatively high, and it will cause secondary pollution of sewage after long-term dosing

Method used

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  • A composition capable of promoting denitrification by nitrifying bacteria and its application
  • A composition capable of promoting denitrification by nitrifying bacteria and its application

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Embodiment Construction

[0017] The preparation method and effect of the present invention will be further illustrated below by way of examples. Embodiments are carried out on the premise of the technical solutions of the present invention, and detailed implementation methods and specific operation processes are provided, but the protection scope of the present invention is not limited to the following embodiments.

[0018] The experimental methods in the following examples are conventional methods in the art unless otherwise specified. The experimental materials used in the following examples were purchased from conventional biochemical reagent stores unless otherwise specified.

[0019] In the embodiment of the present invention, the contact conditions are as follows: the temperature is 20-40° C., the pH is 6-9, and the dissolved oxygen is 0.1-3 mg / L. Among them, dissolved oxygen was measured by iodometric method.

[0020] In the embodiment of the present invention, the nitrifying bacteria are var...

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Abstract

The invention relates to a composition capable of promoting denitrification by nitrifying bacteria and its application, mainly comprising glycolipids, humic acid or / and humate, wherein the glycolipids are trehalose esters, sophorolipids, rhamnose At least one of lipids, cellobiolipids, etc., preferably trehalose esters. The composition has a simple formula and is easy to prepare, and when used in the nitrification process, can improve the denitrification activity of the nitrifying bacteria and promote the smooth progress of the nitrification process.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a composition capable of promoting denitrification by nitrifying bacteria and an application thereof. Background technique [0002] In the biological denitrification method, whether it is the traditional nitrification-denitrification, or the new short-range nitrification-denitrification and short-range nitrification-ANAMMOX, it is necessary to remove ammonia nitrogen through the nitrification of nitrifying bacteria. Nitrifying bacteria belong to chemotrophic microorganisms, and biological cells can only use the energy stored in the form of ATP, etc., and cannot directly use the free energy released by chemical reactions. In aerobic metabolism, ATP is mainly synthesized by oxidative phosphorylation of the respiratory chain. The efficiency of ammonia oxidation phosphorylation is very low, and the ATP that can be produced is very limited. The energy is mainly used for elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/38C12N1/20C02F3/34C02F3/32C02F101/16
Inventor 孙丹凤高会杰郭志华陈明翔
Owner CHINA PETROLEUM & CHEM CORP