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Compound microbiological preparation and application thereof in waste water treatment

A technology of compound microorganisms and preparations, applied in biological water/sewage treatment, water/sludge/sewage treatment, fungi, etc., can solve the problems of inability to form a large number, insufficient population, and unoptimistic dominant bacteria, etc., to achieve increase Activity and effectiveness, good degradation effect

Inactive Publication Date: 2014-12-10
YUANHUANJING ENVIRONMENTAL PROTECTION TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the facts are not so simple. Just imagine that there are often many branches in the evolution of species. It is not optimistic to hope that the dominant bacteria formed naturally
And often the system is unable to decompose a certain poison in the water because of the loss of some bacteria, so that other bacteria have been eliminated by the environmental poison before they have formed well. Insufficient quantity to form in large quantities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The present embodiment is carried out as follows:

[0015] The wastewater is coking wastewater from a coking plant in Shanxi. After being treated by air flotation and degreasing, the wastewater directly enters the biological treatment system (the water quality indicators entering the biological treatment system are as follows:

[0016] COD: 3500--6000mg / l

[0017] NH 4 + -N: 300--350mg / l

[0018] PH value: 7.8---9.0

[0019] Project water volume is 1500m 3 / d, A (anaerobic) / A (facultative oxygen) / O (aerobic) process, the operating process conditions are as follows:

[0020] Residence time: 88h, anaerobic 20h, facultative oxygen 20h, aerobic 48h

[0021] Temperature: 25-35°C

[0022] DO: 2~5mg / l

[0023] Put into the biochemical pool the compound microbial preparation whose initial concentration is 3‰ (volume ratio) of the treatment volume of the biochemical pool.

[0024] After one-time dosing, after 30-60 days of stable operation, the removal rate of COD in co...

Embodiment 2

[0026] The present embodiment is carried out as follows:

[0027] The wastewater is from a pharmaceutical company in Jiangyin, biopharmaceutical wastewater, after the wastewater is treated by physicochemical adjustment of PH, it directly enters the biological treatment system. The water quality indicators entering the biological treatment system are as follows:

[0028] COD: 9000--14000mg / l

[0029] NH 4 + -N: 900--1600mg / l

[0030] Chloride ion: 20000mg / l

[0031] PH value: 8.0---9.5

[0032] Project water volume is 600m 3 / d, UASB (anaerobic) / A (facultative oxygen) / O (aerobic) process, the operating process conditions are as follows:

[0033] Residence time: 115h, anaerobic 48h, facultative oxygen 16h, aerobic 48h

[0034] Temperature: 25-35°C

[0035] Aerobic DO: 2~5mg / l

[0036] Put into the biochemical pool the compound microbial preparation whose initial concentration is 4‰ (volume ratio) of the treatment volume of the biochemical pool.

[0037] After one-time ...

Embodiment 3

[0039] The present embodiment is carried out as follows:

[0040] The wastewater is wastewater from a paint factory in Shaanxi. After physical and chemical degreasing treatment, the wastewater directly enters the biological treatment system. The water quality indicators entering the biological treatment system are as follows:

[0041] COD: 12000--27000mg / l

[0042] Sulfate ion: 5000mg / l

[0043] PH value: 7.5---9.5

[0044] Project water volume is 200m 3 / d, A (anaerobic) / A (facultative oxygen) / O (aerobic) process, the operating process conditions are as follows:

[0045] Residence time: 80h, anaerobic 12h, facultative oxygen 20h, aerobic 48h

[0046] Temperature: 25-35°C

[0047] DO: 2~5mg / l

[0048] Put into the biochemical pool the compound microbial preparation whose initial concentration is 2.5‰ (volume ratio) of the treatment volume of the biochemical pool.

[0049] After one-time dosing, after 30-60 days of stable operation, the removal rate of COD in wastewater ...

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Abstract

The invention discloses a compound microbiological preparation and application thereof in the waste water treatment. Strains adopted by the invention can be conveniently obtained from a natural world by technicians in the field according to the conventional strain identifying and separating method, or can be publicly purchased by a commercial channel. All culture solutions and microbial carriers are mixed according to a certain proportion to obtain the compound microbiological preparation. The compound microbiological preparation disclosed by the invention contains 38 strains; the compound microbiological preparation can be directly fed in a biochemical reactor at one time, so that the establishment of a complete food chain in a microbial system can be effectively promoted, the utilization of microorganisms for nutrient substances in water is promoted, and high-efficiency removal of polluted substances such as organic pollutants (such as benzene ring halogenated compounds), ammonia, nitrogen and the like is realized. The compound microbiological preparation is suitable for biochemical treatment of waste water which is high in salt content, contains heterocyclic aromatic hydrocarbons and is difficult to degrade.

Description

field of invention [0001] The invention relates to a composite microbial preparation and its application in wastewater treatment. Background of the invention [0002] With the development of human society and economy, some synthetic organic substances are constantly produced, and many chemical products can no longer be directly degraded by a single microorganism. To this end, many scholars have carried out a lot of research. For a long time, for some refractory organic pollutants (such as benzene ring halogenated compounds), people have not been able to isolate efficient biodegradable microorganisms as the only carbon and energy sources. Several studies have shown that pollutants such as trichlorethylene biodegrade only through co-metabolism. McCarty discovered two groups of bacteria, one group can grow and degrade trichlorethylene and tetrachlorethylene under the anaerobic conditions of methane production, and the other group of bacteria can use co-metabolic growth substr...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N1/14C02F3/34
Inventor 范鸿仁曲虎彪张莲清
Owner YUANHUANJING ENVIRONMENTAL PROTECTION TECH SHANGHAI CO LTD
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