Low-pollution-water-body remediation microbial community

A technology for microbial flora and water body remediation, applied in biological water/sewage treatment, water/sludge/sewage treatment, water treatment parameter control, etc. Water quality, impact of changes in water quantity, etc.

Inactive Publication Date: 2016-11-16
YUNNAN SHENGQING ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, microbial treatment technology has attracted more and more attention. This process removes pollutants in water through the metabolism of microbial strains, which can effectively improve the coagulation and sedimentation performance and reduce the amount of coagulant. However, in the traditional microbial treatment process The active bacteria are mainly derived from the sludge itself, without intensive cultivation and domestication, and common active bacteria have low adaptability to changes in influent water quality and water volume, and the operating results are easily affected by changes in water quality and water volume. Therefore, the process A large amount of excess sludge will be generated during operation, and the degradation effect on organic pollutants is not ideal
Usually, excess sludge contains a large amount of toxic and harmful refractory organic matter. If these excess sludge is not properly treated, it will cause secondary pollution to the surrounding environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In parts by weight, weigh 13 parts of Gordonia lumina, 17 parts of Pseudomonas asphaltum, 35 parts of Sphingomonas, 20 parts of Stenotrophomonas rhizophilus, and 38 parts of Pseudoalcalimonas Mix with 45 parts of Azospirillum to obtain a mixed flora.

[0016] According to adding 15mL of mixed flora into the bioreactor, after injecting into the water body to be repaired, at a temperature of 25°C, the operation mode of anoxic-aerobic-microaerobic is adopted. The pH of the anoxic stirring unit in the first stage is 6.5, and the oxidation-reduction The potential (ORP) is -160mv; the pH of the aerobic aeration unit in the second stage is 7.5, and the oxidation-reduction potential (ORP) is 180mv; the pH of the micro-aerobic stirring unit in the third stage is 7.3, and the oxidation-reduction potential (ORP) is 120mv; The amount of carbon source is 40mg / L; the reaction time is 3.0h. System to COD Cr , NH 4 -N, TN, and TP have the best removal effect, and the concentration o...

Embodiment 2

[0018] In parts by weight, weigh 15 parts of Gordonia lumina, 20 parts of Pseudomonas asphaltum, 45 parts of Sphingomonas, 30 parts of Stenotrophomonas rhizophilus, and 40 parts of Pseudoalcalimonas Mix with 40 parts of Azospirillum to obtain a mixed flora.

[0019] According to adding 20mL of mixed flora into the bioreactor, after injecting into the water body to be repaired, at a temperature of 30°C, the operation mode of anoxic-aerobic-microaerobic is adopted. The pH of the anoxic stirring unit in the first stage is 6.8, and the oxidation-reduction The potential (ORP) is -180mv; the pH of the aerobic aeration unit in the second stage is 7.7, and the oxidation-reduction potential (ORP) is 195mv; the pH of the micro-aerobic stirring unit in the third stage is 7.5, and the oxidation-reduction potential (ORP) is 135mv; The amount of carbon source is 45mg / L; the reaction time is 3.5h. System to COD Cr , NH 4 -N, TN, and TP have the best removal effect, and the concentration o...

Embodiment 3

[0021] In parts by weight, weigh 5 parts of Gordonia lumina, 10 parts of Pseudomonas asphaltum, 25 parts of Sphingomonas, 15 parts of Stenotrophomonas rootophilus, and 20 parts of Pseudoalcalimonas Mix with 10 parts of Azospirillum to obtain a mixed flora.

[0022] According to adding 22mL of mixed flora into the bioreactor, after injecting into the water body to be repaired, at a temperature of 35°C, adopt anoxic-aerobic-micro-aerobic operation mode, the pH of the anoxic stirring unit in the first stage is 7.0, redox The potential (ORP) is -170mv; the pH of the aerobic aeration unit in the second stage is 7.9, and the oxidation-reduction potential (ORP) is 200mv; the pH of the micro-aerobic stirring unit in the third stage is 7.7, and the oxidation-reduction potential (ORP) is 140mv; The amount of carbon source is 50mg / L; the reaction time is 3.8h. System to COD Cr , NH 4 -N, TN, and TP have the best removal effect, and the concentration of various indicators in the efflue...

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PUM

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Abstract

The invention discloses a low-pollution-water-body remediation microbial community. The microbial community is prepared from light gordona, asphalt pseudo-burkholderia, sphingomonas, stenotrophomonas rhizophila, pseudomonas pseudoalcaligenes and azospirillum. The low-pollution water-body repairing microbial community has the advantages that by means of the obtained microbial community, treatment efficiency of a low-pollution water body is high, and factors of the sludge yield are small.

Description

technical field [0001] The invention belongs to the technical field of low-pollution water body restoration, in particular to a microbial flora for low-pollution water body restoration. Background technique [0002] Low-pollution water bodies mainly refer to water bodies polluted by organic matter, and some water quality indicators exceed the Class III standard of the "Surface Water Environmental Quality Standard". Some water bodies contain high natural color and organic matter, but are rarely polluted by man-made. Source water is also classified as low-pollution water bodies. Some of the organic pollutants come from domestic organic pollution, and the other part comes from industrial organic pollution, and industrial organic pollution is mostly artificially synthesized organic matter, which has a wide variety and is harmful to drinking water quality and human health. The main pollution indicators of low-pollution water bodies are permanganate index, ammonia nitrogen, chemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/30
CPCC02F3/34C02F3/301C02F3/348C02F2209/04C02F2209/06C02F2209/08C02F2209/14C02F2209/16C02F2209/18
Inventor 黄志红顾开林周颖
Owner YUNNAN SHENGQING ENVIRONMENTAL PROTECTION TECH CO LTD
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