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Nitrobacteria growth promoter

A growth promoter and nitrifying bacteria technology, applied in the direction of bacteria, sustainable biological treatment, aerobic process treatment, etc., can solve the problems of high cost, not very suitable, not wide applicability, etc., and achieve low overall cost and high removal rate Improvement, low price effect

Active Publication Date: 2007-06-27
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of nitrifying bacteria from the outside can indeed ensure the smooth progress of the nitrification process in a relatively short period of time, but the operation and management are very inconvenient and the cost is relatively high, and the applicability of this method is not wide, such as for discharge It is not very suitable for large amount of industrial sewage treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0017] Accelerators in each embodiment were prepared in required proportions, wherein molasses was 100 parts by weight, and the proportions of other components were shown in Table 1.

[0018] Table 1. Unit: parts by weight

[0019] metal salt

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Abstract

The nitrobacteria growth promoter consists of molasses 100 weight portions, metal salt 0.2-2.5 weight portions and adsorbent 1-8 weight portions. The metal salt includes component A of FeSO4 or FeCl2, and component B of MgSO4 and / or CaCl2, in the molar ratio of 10 to (0.5-5). The adsorbent is zeolite powder, diatomite, powdered active carbon, fly ash or their mixture. The nitrobacteria growth promoter is used in biological nitrification process of eliminating ammonia nitrogen and thrown into sewage directly to promote the propagation and growth of nitrobacteria in sewage. It has raised ammonia nitrogen eliminating rate and low cost.

Description

technical field [0001] The invention relates to a nitrifying bacteria growth accelerator used for removing ammonia nitrogen in sewage by a biological method. Background technique [0002] Ammonia nitrogen is the most harmful pollution factor in water bodies. It will lead to eutrophication of rivers and lakes and weaken the self-purification ability of water bodies. Ammonia nitrogen in polluted water usually refers to nitrogen existing in the form of ammonia. Compared with other organic pollutants, it is much more difficult to remove ammonia nitrogen in polluted water. In the prior art, the removal methods of ammonia nitrogen in polluted water mainly include physical, chemical and biological methods. Physical or chemical methods include air stripping method, break point chlorination method, ion exchange adsorption method, flocculation precipitation method, electrodialysis method, catalytic wet oxidation method, liquid membrane method, etc. These methods are generally used f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C12N1/20
CPCY02W10/10
Inventor 吴敏仓一华祝娟芝杨玉梅
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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