Microbial preparation for restoring fertilizer plant sewage and application thereof

A microbial preparation and microbial technology, applied in the field of microorganisms, can solve problems such as hindering the application process of biological treatment of sewage, unreasonable compatibility of bacteria and microorganisms, and unacceptable by enterprises, so as to improve the efficiency of biological oxidation, improve the efficiency of biological treatment, and be easily accepted Effect

Inactive Publication Date: 2015-04-22
杭州润泽科学器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the microbial preparations used in the prior art to treat sewage from chemical fertilizer plants have defects such as unreasonable compatibility of bacteria and microorganisms, low removal efficiency, and high cost, which is difficult for enterprises to accept, which greatly hinders the application process of biological sewage treatment.

Method used

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  • Microbial preparation for restoring fertilizer plant sewage and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A microbial preparation for repairing sewage from chemical fertilizer plants, which is prepared according to the following method:

[0029] Step 1) Preparation of adsorbent: first, crush the zeolite to obtain zeolite powder with a particle size of 50, and then mix it with silicon dioxide and humic acid in a weight ratio of 1:2:2 to obtain; The particle size of silicon or humic acid is 50 mesh.

[0030] Step 2) Preparation of microbial carbon source: dry the rice straw and crush it into rice straw powder with a pulverizer; dry the peanut shells and pulverize them into peanut shell powder with a pulverizer; Then add soybean meal and water, stir at a speed of 500 rpm for 15 minutes, then send the materials in the stirred tank into the reactor, feed water vapor into the reactor, keep the temperature of the reactor at 95°C, keep warm React for 30 minutes, and finally cool naturally; the mass ratio of rice straw powder, peanut shell powder, soybean meal and water is 2:2:3:5;...

Embodiment 2

[0035] A microbial preparation for repairing sewage from chemical fertilizer plants, which is prepared according to the following method:

[0036] Step 1) Preparation of adsorbent: first, crush the zeolite to obtain zeolite powder with a particle size of 100 meshes, and then mix it with silicon dioxide and humic acid in a weight ratio of 1:2:2 to obtain; The particle size of silicon or humic acid is 100 mesh;

[0037] Step 2) Preparation of microbial carbon source: dry the rice straw and crush it into rice straw powder with a pulverizer; dry the peanut shells and pulverize them into peanut shell powder with a pulverizer; Then add soybean meal and water, stir at a speed of 500 rpm for 15 minutes, then send the materials in the stirred tank into the reactor, feed water steam into the reactor, keep the temperature of the reactor at 100°C, keep warm React for 30 minutes, and finally cool naturally; the mass ratio of rice straw powder, peanut shell powder, soybean meal and water is ...

Embodiment 3

[0049] Taking the sewage of a chemical fertilizer factory in this city as an example, first remove the suspended matter in the sewage, and then enter the sedimentation tank. The sedimentation tank is laid with fine sand with a thickness of 50cm, and settle for 12 hours. Then it enters the biochemical reaction tank, and the pH of the sewage is adjusted by adding hydrochloric acid. 7. Dosing 20 grams of microbial preparations per cubic meter of liquid each time, once a day, after three days of continuous dosing, let it stand for another week, filter and sterilize the liquid, and finally discharge it. Three water samples were taken for each test, and the average value was calculated; after testing, all indicators reached the ideal discharge standard, and the detection indicators of sewage are shown in Table 1:

[0050] Table 1

[0051]

[0052] Conclusion: The microbial preparation of the present invention can effectively remove ammonia nitrogen, SS and phenolic substances in ...

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Abstract

The invention belongs to the technical field of microbes, and discloses a microbial preparation for restoring fertilizer plant sewage. The microbial preparation for restoring fertilizer plant sewage is prepared by the following steps: 1) preparing an adsorbent; 2) preparing a microbial carbon source; 3) preparing a microbial carrier; and 4) preparing the microbial preparation. The microbial preparation can effectively remove ammonia nitrogen, SS (suspended sediment) and phenols in the fertilizer plant sewage, has favorable removal effect, and achieves the discharge standard.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and discloses a microbial preparation for repairing sewage from chemical fertilizer plants and an application thereof. Background technique [0002] Fertilizer factory sewage is an important source of industrial sewage, and the main pollutants exceeding the standard are ammonia nitrogen, sulfide, and phenolic substances. The content of various pollutants in sewage is high, which belongs to high pollutant sewage. The concentration of ammonia nitrogen can reach 700mg / L, COD can reach more than 1000mg / L, sulfide can reach 100mg / L, and phenols can reach 50mg / L. At present, domestic and foreign treatment methods for high-concentration pollutant sewage are divided into physical and chemical methods, combined biochemical methods, new biological denitrification methods and traditional biological denitrification methods. At present, there are many physical and chemical methods, new biological deni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/34
Inventor 龚艳华陈静
Owner 杭州润泽科学器材有限公司
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