Prepn of microbial colony sludge for efficient treatment of sewage

A technology of microbial flora and sludge, applied in biochemical equipment and methods, microorganisms, microorganisms, etc., can solve the problems of governance failure, large equipment investment, and insignificant effect, and achieve the effect of stable structure and wide range of functions.

Inactive Publication Date: 2002-05-15
重庆和润实业(集团)有限公司
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  • Abstract
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Problems solved by technology

However, the above methods generally have problems such as harsh microbial cultivation conditions, ineffective effects, and insufficient application, as well as large equipment investment and high costs, and cannot be widely used in large-scale sewage sludge treatment projects.
The study believes that the main reason for the poor effect is that after the engineering bacteria with decomposition ability are added to the sewage sludge to be treated, the high concentration of nitrogen, phosphorus and other organic matter, lipids, heavy met

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: Collection of engineered strains: The engineered strains of the present invention are collected from different sewage or sludge, preferably collected in an environment requiring treatment. The collection of sludge is to collect 50-100 grams of samples from the sludge and place them in sterile containers; the collection of water samples is to collect water samples from the hydrostatic layer in wide-mouth sterile bottles, and all samples should be tested within 24 hours, or 4 ℃ sealed storage.

Embodiment 2

[0022] Embodiment two, engineering original strain cultivation: according to the basic principle of microbial growth, the nitrogen source content of microbial culture medium is 1-10%, carbon source is 2-20%, inorganic ion 0.05-1%, organic matter 2-10% , growth-promoting factors such as vitamins and trace elements are 0.01-0.5%, and the balance is distilled water.

Embodiment 3

[0023] Embodiment three: photosynthetic bacteria separation and enrichment culture method: (1) photosynthetic bacteria culture medium formula is (percentage by weight): ammonium chloride 0.05-0.2, sodium acetate 0.1-0.2, magnesium chloride 0.01-0.02, calcium chloride 0.01- 0.02, calcium dihydrogen phosphate 0.02-0.05, dipotassium hydrogen phosphate 0.02-0.05, yeast extract 0.02-0.05, distilled water 99.0-99.5. (2) The separation and enrichment method is as follows: adjust the pH value of the culture medium to 7.0, and then sterilize at 115°C for 20 minutes. After cooling, add 3-5% of sewage or sludge to be separated, and heat Cultivate at 30°C under anaerobic light for 5-7 days, the culture solution changes from colorless to red, and then transfer culture for 3 times to obtain dark red liquid as photosynthetic bacteria liquid.

[0024] In the above examples, the preferred formulation of the photosynthetic bacteria culture medium is (percentage by weight): 0.1 ammonium chloride...

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PUM

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Abstract

This invention relates to a preparation method for microbial colony used for effectively treating urban living sewage and sewage sludge in river bend, lake, marsh enclosed or semi-enclosed water areas. The said method includes the following steps: collecting and culturing of engineering initial bacterial strain, enrich mixed culture of bacterial strain, acclimatized culture of engineering bacteria and expanding culture of acelimatized bacteria. It this invention found is from the microbial growth and metabolic mechanism a preparation method of microbial colony which can high-effectively and high-adaptively treat various sewage sludges.

Description

(1) Technical field [0001] The invention relates to a method for preparing microbial flora for efficient treatment of sewage sludge, namely, a method for treating urban domestic sewage and in enclosed or semi-enclosed waters such as river bends, lakes, ponds, swamps, etc. where the water flow is stagnant or the water flow is very slow. Sewage sludge method. (2) Technical background [0002] The water environment is the most important part of the earth's ecological environment. With the development of the economy and the progress of society, water pollution is also one of the problems that cannot be ignored. Due to the concentration of industry and commerce and dense population in my country's cities, the production of domestic sewage is large, and there are many types of pollutants and high loads. 80% of urban sewage is domestic sewage, mainly feces, rot and other sewage, and the pollution of the water environment is a typical type of organic pollution. Under the control o...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F11/02C12N1/00
CPCY02W10/20
Inventor 陈君雁杰
Owner 重庆和润实业(集团)有限公司
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