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Composition for rapidly culturing nitrifying bacteria and applications of composition

A technology of nitrifying bacteria and compositions, applied in the direction of adding compounds to stimulate growth, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of increasing sludge production, improve treatment effect, shorten enzymatic Response process, solve the effect of rapid recovery

Active Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the adsorbents are mainly zeolite powder, diatomaceous earth, powdered activated carbon or fly ash, the addition of these adsorbents will inevitably increase the sludge production.

Method used

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  • Composition for rapidly culturing nitrifying bacteria and applications of composition
  • Composition for rapidly culturing nitrifying bacteria and applications of composition

Examples

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Embodiment Construction

[0018] The solutions of the present invention will be described in detail below in conjunction with specific embodiments.

[0019] See Table 1 for the composition formula of rapidly cultivating nitrifying bacteria required by Examples 1-6 and Comparative Examples 1-7.

[0020] The formula and ratio of table 1 composition

[0021]

[0022] The activated sludge from a sewage treatment plant was used as the inoculum to enrich and cultivate the nitrifying bacteria. After 30 days of cultivation, the highest concentration of nitrifying bacteria in the activated sludge reached 2.0×10 5 each / ml (counted by bacterial counting plate), after that, according to the formula in Table 1, a solution with a certain concentration was configured and then added to Examples 1-12 respectively. After each addition, the concentration of the composition in the enriched culture solution was 15 mg / L. , after 20 days of culture, the concentration of nitrifying bacteria in the activated sludge was sam...

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Abstract

The invention discloses a composition for rapidly culturing nitrifying bacteria. The composition comprises the following components in parts by weight: 40-100 parts of metal salts, preferably 50-80 parts of metal salts, 5-30 parts of polyamine substance, preferably 10-20 parts of polyamine substance, and 0.5-15 parts of hydroxylamine organic acid, preferably 2-10 part of hydroxylamine organic acid, wherein the metal salts comprise calcium salt, magnesium salt and copper salt, and the molar ratio of Ca<2+> to Mg<2+> to Cu<2+> is (5-15) to (5-25) to (0.5-5), preferably (8-12) to (10-20) to (1-4). The composition is simple in formula and easy to prepare, can be used in a culture process of nitrifying bacteria, and also can be directly fed into a sewage treatment system, so that the nitrifying bacteria can rapidly grow and breed within a short time, and the cultured nitrifying bacteria have high activity and strong impact tolerance.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a composition for quickly cultivating nitrifying bacteria and an application thereof. Background technique [0002] In the biological nitrogen removal method, whether it is the traditional nitrification-denitrification, or the new short-range nitrification-denitrification and short-range nitrification-ANAMMOX, the ammonia nitrogen needs to be removed through the nitrification of nitrifying bacteria. Nitrifying bacteria are chemotrophic microorganisms. 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 ammonia oxidative phosphorylation efficiency is very low, and the ATP that can be produced is very limited, and the energy is mainly used for electron transition to a highe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/38C02F3/34C02F3/30
Inventor 高会杰郭志华孙丹凤赵胜楠许谦
Owner CHINA PETROLEUM & CHEM CORP
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