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Method for treating carbonized sewage through cultivating and domesticating nitrobacterium and denitrified bacterium

A technology for denitrifying bacteria and coking sewage, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as inability to achieve denitrification, reduce domestication links, reduce Effects of running cost and shortening culture time

Inactive Publication Date: 2005-06-15
WUKUN STEEL
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  • Description
  • Claims
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Problems solved by technology

However, if there are not enough biological bacteria in the process of nitrification and denitrification, or need to add biological bacteria, the denitrification in a better state cannot be achieved.

Method used

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  • Method for treating carbonized sewage through cultivating and domesticating nitrobacterium and denitrified bacterium
  • Method for treating carbonized sewage through cultivating and domesticating nitrobacterium and denitrified bacterium
  • Method for treating carbonized sewage through cultivating and domesticating nitrobacterium and denitrified bacterium

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Embodiment 1

[0033] 1. Collect the sewage generated in the production process of each workshop into the degreasing pool to remove heavy oil and some light oil;

[0034] 2. The effluent from the degreasing tank flows into the flotation tank to degrease again, creating a good water quality condition for the subsequent process; when the water quality is poor or the water volume is large, the effluent from the degreasing tank enters the regulating tank, and waits for the subsequent process When the load is reduced, it will be pumped back to the degreasing pool;

[0035] 3. The effluent from the flotation tank flows into the homogenization tank, and phosphorus salt is added as needed to mix it with the wastewater, and the phosphorus (P) content is controlled to 4-5mg / L, and then sent to the anaerobic tank;

[0036] 4. The anaerobic tank is equipped with a combined filler and a mixer. After the wastewater is fully stirred, it undergoes an acidification reaction with the biofilm (anaerobic bacter...

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Abstract

A process for treating the coking sewage by culturing and naturalizing the nitrifying bacteria and the denitrifying bacteria is disclosed. The process for culturing and naturalizing the denitrifying bacteria includes filling the mixed liquid from aerobic pool into anaerobic pool, flowing the supernatant from depositing pool back into anaerobic pool, inoculating denitrifying bacteria, culturing and naturalizing. The process for culturing and naturalizing the nitrifying bacteria includes introducing the nitrogen-contained sewage to aerobic pool, culturing naturalizing.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a method for treating coking plant sewage by using the original common activated sludge to cultivate domesticated nitrifying and denitrifying bacteria. Background technique [0002] Biological denitrification is the use of chemical principles to remove ammonia nitrogen (NH 4 + ) After nitrification and denitrification reactions, the ammonia nitrogen is finally converted into harmless nitrogen and released. Nitrification is the overall process of converting ammonia nitrogen into the nitrate form. which is <chemistry num="001"> <chem file="200310111176_cml001.xml" / > < / chemistry> , the reaction is completed with the help of heterotrophic bacteria and autotrophic bacteria. In the natural environment, a large amount of nitrate and nitrifying bacteria are produced by heterotrophic bacteria. These two types of organisms need to obtain energy from the oxidation of inor...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F9/14
Inventor 曹吉良毛云海郭启鸿栾春生
Owner WUKUN STEEL
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