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Construction method of microbial carrier for wastewater treatment

A microbial carrier and wastewater treatment technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. problems, to achieve the effect of saving sewage treatment costs, good immobilization, good immobilization and dispersion

Inactive Publication Date: 2012-10-03
ANHUI SCI & TECH UNIV
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Problems solved by technology

However, there are two important shortcomings in actual industrial operation: 1: In order to ensure the normal metabolism and reproduction of microorganisms, a large amount of nutrients need to be added frequently, which not only causes economic input due to the large consumption of nutrients Big disadvantages, and the frequent addition of a large amount of nutrients also brings disadvantages such as large labor input, cumbersome process and poor reliability of sewage treatment caused by unbalanced microbial metabolism; 2: Treatment of dye wastewater with "three high" characteristics and Other chemical industry wastewater has the disadvantage of poor affinity of the carrier to microorganisms, which makes the microorganisms unable to fix well, thus greatly weakening the biochemical treatment effect of wastewater

Method used

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Experimental program
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Effect test

Embodiment

[0018] A method for constructing a microbial carrier for treating wastewater, comprising the following steps:

[0019] (1) Preparation of microbial immobilization carrier:

[0020] Crushing and cutting the selected wheat straw to a length of 1-10 cm and a radius of 0.1-1 mm to obtain material I;

[0021] (2) Preparation of support materials:

[0022] Cutting and making a cube-shaped sponge with a side length of 1 to 5 cm is used as a support material to obtain material II;

[0023] (3) Build a sewage treatment system:

[0024] Build a total volume of 150 m 3 The three-stage sewage treatment system, the volume of each stage sewage treatment system is equal, both are 50 m 3 ;

[0025] According to the volume of each cubic meter of sewage treatment system, add 25kg of material Ⅰ and 5kg of material Ⅱ. Mix material Ⅰ and material Ⅱ evenly and then add them to the constructed first two-stage sewage treatment system. No carrier is added to the last stage. And supporting materi...

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Abstract

The invention provides a construction method of microbial carriers for wastewater treatment. The construction method comprises the following steps: taking wheat straws or other plant remains as microbial fixed carriers and taking sponge or porous plastic as supporting materials, uniformly mixing the microbial fixed carriers and the supporting materials, and filling in a swage treatment system. The affinity of the carriers in the biofilm process on the microbes in excellent, and the nutrition supply of the microbes is good; moreover, the sewage treatment system has the characteristics of high wastewater load impact resistance, can directly treat high-concentration and stable-quality polluted wastewater, and does not need diluting wastewater so as to solve the problem that polluted wastewater with three-high characteristics causes the high load impact.

Description

technical field [0001] The invention relates to a method for constructing a microbial carrier for treating waste water. Background technique [0002] With the rapid development of social economy, global environmental problems are becoming more and more prominent. A series of sewage discharged by large-scale industrial production, especially the dyed sewage discharged by the dyeing and chemical industry is particularly serious. In view of the high pollution of dyed and chemical sewage Due to the characteristics of COD, high chroma, high toxicity and stable chemical properties, the problem of treating dyeing and chemical sewage has become a worldwide problem, which also restricts the development of the dyeing and chemical industry to a certain extent. The demand for a method to solve the difficult problem of dyeing and chemical sewage treatment is particularly urgent. [0003] At present, the main treatment methods for dyeing and chemical industry wastewater and other chemica...

Claims

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Application Information

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IPC IPC(8): C02F3/34
Inventor 毛杰常蕊段厚宝
Owner ANHUI SCI & TECH UNIV
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