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Nitrifying bacterium culture promoter as well as preparation method and application thereof

A technology of nitrifying bacteria and accelerators, applied in chemical instruments and methods, aerobic and anaerobic process treatment, and adding compounds to stimulate growth, etc., can solve the problems of increasing sludge production, improve the treatment effect, shorten the The effect of enzymatic reaction process and accelerated nitrification reaction process

Active Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Description
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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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  • Nitrifying bacterium culture promoter as well as preparation method and application thereof

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Embodiment Construction

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

[0019] The formulations of the nitrifying bacteria culture promoters of Examples 1 to 6 and Comparative Examples 1-7 are shown in Table 1.

[0020] Table 1 Formulation and ratio of accelerator

[0021]

[0022] The activated sludge of a sewage treatment plant was used as the inoculum to enrich and cultivate the nitrifying bacteria. After 30 days of cultivation, the concentration of nitrifying bacteria in the activated sludge was up to 3.0×10 by sampling and microscopic examination. 5 Pcs / ml (counting on bacteria counter), then prepare a solution of a certain concentration according to the formula in Table 1 and then add them to Examples 1~10 respectively. After each dosing, the concentration of the composition in the enriched culture solution is 10mg / L After culturing for 20 days, sample and microscopically check the concentration of nitrifying bacteria in the ac...

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Abstract

The invention discloses a nitrifying bacterium culture promoter, which consists of metal salts, polyamine substances and organic acid hydroxylamine, wherein in parts by weight, the content of the metal salts is 40-100 parts by weight, preferably 50-80 parts by weight; the content of the polyamine substances is 5-30 parts by weight, preferably 10-20 parts by weight; and the content of the organic acid hydroxylamine is 0.5-15 parts by weight, preferably 2-10 part by weight; the metal salts include calcium salt, magnesium salt, ferrous salt and copper salt; and the molar ratio of Ca<2+> to Mg<2+> to Fe<2+> to Cu<2+> is (5-15) to (5-25) to (1-8) to (0.5-5), and preferably (8-12) to (10-20) to (2-6) to (1-4). The promoter is simple in formula and easy for preparing; and the promoter can be applied to the culture process of the nitrifying bacteria and the promoter can be also directly added to a sewage treatment system, so that the rapid growth and reproduction of nitrifying bacteria can be achieved within a short time; and the cultured nitrifying bacteria are high in activity and strong in impact resistance.

Description

Technical field [0001] The invention belongs to the field of biotechnology, and specifically relates to a nitrifying bacteria culture promoter and a preparation method and application thereof. Background technique [0002] In the biological denitrification method, whether it is the traditional nitrification-denitrification, or the new short-cut nitrification-denitrification and short-cut nitrification-anammox, it is necessary to remove ammonia nitrogen through the nitrification of nitrifying bacteria. Nitrifying bacteria are chemically nutritive microorganisms. Biological cells can only use the energy stored in the form of ATP, and cannot directly use the free energy released by chemical reactions. In aerobic metabolism, ATP is mainly synthesized through oxidative phosphorylation of the respiratory chain. The efficiency of ammonia oxidative phosphorylation is very low, and the ATP that can be produced is very limited. This energy is mainly used for electron transition to a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/38C02F3/34C02F3/30
Inventor 高会杰孙丹凤郭志华赵胜楠郭宏山
Owner CHINA PETROLEUM & CHEM CORP
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