Carbon source supplement used by sewage plant at low temperature and preparation method

A carbon source supplement and sewage plant technology, applied in the field of water treatment, can solve the problems of water pollution, small quantity and variety, etc., and achieve the effect of improving biological activity and significant biochemical effect.

Inactive Publication Date: 2019-05-17
URUMQI KEFAZHAN FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, judging from the published carbon source preparations, there are not many varieties. Most of the products are mixed with existing traditional organic substances. Some products also contain excessive nitrogen and phosphorus in sewage, which usually exceed the standard, causing more pollution to water bodies.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1. A carbon source supplement used in a sewage plant at low temperature. The carbon source supplement is prepared by weight percentage from the following components (1) sodium acetate 22%, (2) molasses 5%, (3) methanol 14% %, (4) glycerol 2%, (5) acetic acid 5%, (6) sodium carbonate 4%, (7) glucose 1%, (8) starch 1%, (9) the rest of water.

[0015] The preparation method for preparing the above-mentioned carbon source supplement, according to the above-mentioned components and percentages, first, use a pump to sequentially pump components (3), (4), (5), and (9) into the reaction kettle, and heat up To 45°C, keep stirring during the heating period; then add the components (1), (2), (7), (8), and (6) into the reaction kettle in sequence, continue stirring for 60 minutes and discharge, and the carbon source can be obtained Finished supplements.

[0016] The production practice is verified: the carbon source supplement produced according to Example 1 is compared wi...

Embodiment 2

[0017] Example 2, a carbon source supplement used in sewage plants at low temperature, the carbon source supplement is prepared by weight percentage from the following components (1) sodium acetate 28%, (2) molasses 2%, (3) methanol 9 %, (4) glycerol 1%, (5) acetic acid 7%, (6) sodium carbonate 5%, (7) glucose 5%, (8) starch 1%, (9) the rest of water.

[0018] The preparation method is the same as in Example 1.

[0019] Production practice is verified: according to the carbon source supplement produced in Example 2 and the commercially available glucose carbon source comparative experiment, the experimental results are as follows:

[0020] The wastewater treatment volume of a sewage treatment plant (industrial park wastewater) in Urumqi, Xinjiang is 40,000 cubic meters per day, PH5-8, system influent CODcr 400-800mg / L, total nitrogen TN40-100mg / L, ammonia nitrogen 30-90 mg / L. The initial design of the system was to add methanol as a supplementary carbon source. Due to safet...

Embodiment 3

[0021] Example 3. A carbon source supplement used in a sewage plant at low temperature. The carbon source supplement is prepared by weight percentage from the following components (1) sodium acetate 20%, (2) molasses 3%, (3) methanol 10% %, (4) glycerol 2%, (5) acetic acid 8%, (6) sodium carbonate 4%, (7) glucose 8%, (8) starch 3%, (9) the rest of water.

[0022] The preparation method is the same as in Example 1.

[0023] Production practice is verified: according to the carbon source supplement produced in Example 3 and the commercially available glucose carbon source comparative experiment, the experimental results are as follows:

[0024] A sewage treatment plant (municipal wastewater) in southern Xinjiang, the wastewater treatment volume is 10,000 cubic meters per day, PH7-9, system influent CODcr is 250-350mg / L, total nitrogen TN60-100mg / L, ammonia nitrogen 50-100 mg / L. The system was originally designed to add solid glucose, but ammonia nitrogen has not reached the s...

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PUM

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Abstract

The invention belongs to the technical field of water treatment, and specifically relates to a carbon source supplement used by a sewage plant at a low temperature. The carbon source supplement is prepared from the following components in percentage by weight: (1) 10 to 30 percent of sodium acetate, (2) 1 to 5 percent of molasses, (3) 5 to 15 percent of methanol, (4) 1 to 5 percent of glycerol, (5) 1 to 10 percent of acetic acid, (6) 1 to 10 percent of sodium carbonate, (7) 1 to 15 percent of glucose, (8) 1 to 5 percent of starch and (9) the balance of water. The carbon source supplement disclosed by the invention can be widely applicable to the sewage plant to supplement a carbon source, and a remarkable biochemical effect can also be obtained even under the situation that the water temperature in winter is lower.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a carbon source supplement used in sewage plants at low temperature and a preparation method, which is applied to biochemical systems of industrial and municipal sewage plants lacking carbon sources. Background technique [0002] Sewage plant nutrient solution-carbon source is a type of nutrient for microbial growth, food for bacteria, and carbon-containing compounds. Commonly used carbon sources are sugars, oils, organic acids and organic acid esters, and small molecule alcohols. Different microorganisms can use different carbon sources according to the different enzyme systems that microorganisms can produce. The role of carbon sources on the growth and metabolism of microorganisms is mainly to provide the carbon frame of cells, the energy required for cell life activities, and the carbon frame of synthetic products. Carbon sources play an important role i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F101/10C02F101/16
Inventor 刘俊东杨桂萍
Owner URUMQI KEFAZHAN FINE CHEM
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