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Complex microbial inoculum for treating sewage and application method thereof

A technology of inoculum and biological inoculum, applied in the field of microorganisms, can solve problems such as weak removal effect, achieve good removal effect, improve water quality of treatment, and easy method.

Inactive Publication Date: 2015-06-10
朱凌玮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bacterial agent has certain weaknesses in the removal of phosphorus, COD and heavy metals. Therefore, the applicant has improved this to obtain a better bacterial agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the preparation of composite bacterial agent

[0031] The bacterial agent is configured according to the specific ratio given below.

Embodiment 2

[0053] Example 2 Bacteria treatment effect experiment

[0054] In the urban sewage treatment plant, use a 50L bucket as the test equipment with stirring, take 30L of the effluent from the explosion pool, add it to the bucket, adjust the pH to 7.0, and water temperature 20°C. Sampling and determination of COD, ammonia nitrogen, total nitrogen, phosphorus, and activity Sludge measurement of heavy metal data;

[0055] In the water body, COD before treatment is 79mg / L, ammonia nitrogen is 20mg / L, total nitrogen is 30mg / L, total phosphorus is 40mg / mL, sludge heavy metals (Cu), (Cr), (Pb), (As) and (Cd ) (dry basis) were 40, 80, 121, 35, 16 mg / kg, respectively.

[0056] Wherein a bucket adds the bacterium agent 10g that embodiment 1 prepares, stirs 1 hour, stops to stir after 3 hours sampling and measures COD, ammonia nitrogen, total nitrogen data, measures the content of heavy metal in the sludge after 24h, and result is as follows:

[0057] COD average removal rate ...

Embodiment 3

[0059] The composite bacterial agent prepared in Example 1 is used to treat industrial wastewater in urban factories. The treatment process is A / 0+sedimentation+biological aerated filtration, and the A / 0 pool is added with the biochemical tank volume prepared in Example 1 every cubic meter. 20 grams of composite high-efficiency microbial preparations are added once a day for two consecutive weeks; the biological aerated filter is added with 40 grams of this composite high-efficiency microbial preparation per cubic meter of filler, added once a day for 10 consecutive days; One month later, the removal rate of the bacterial agents using scheme 1-4 reached 99.9%. There is a big difference in the removal of phosphorus and heavy metals in the comparative example, especially the removal rate of heavy metals can only be maintained at about 40%. Especially in the removal of the heavy metal As, schemes 1-4 achieved a good removal effect due to the appropriate ratio between the various ...

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PUM

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Abstract

The invention relates to an improved biological microbial inoculum for treating industrial sewage and a preparation method and application thereof. The microbial inoculum is thrown in a sewage treating system, has a good degrading effect on macromolecular, degradation-resistant, toxic and harmful substances such as arsenic, ammonia nitrogen and phosphorus and has a unique treatment effect on high-concentration organic sewage and high-ammonia-nitrogen sewage which are difficult for a traditional activated sludge method to treat.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and in particular relates to a biological bacterial agent for treating sewage, a preparation method and application thereof. Background technique [0002] Groundwater is an important drinking water resource in many areas of our country. However, with the industrial and agricultural activities, groundwater pollution in most plain areas of my country is very serious, and it is often a compound pollution of multiple pollutants at the same time. Among them, the compound pollution of heavy metals and nitrates is the most common compound pollution. According to 20 years of monitoring data, many pollutants such as nitrate and hexavalent chromium in Xi'an's groundwater have exceeded the standard for a long time. [0003] Like animals and plants, microorganisms are one of the three major species in nature, and in the entire ecological cycle system, microorganisms are the decomposers of organic was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/16C12N1/14C02F3/34C12R1/01C12R1/125C12R1/865C12R1/11C12R1/685C02F101/20
CPCC12N1/20C02F3/34C02F3/347C02F2101/105C02F2101/16C02F2101/20C12N1/14C12N1/16
Inventor 朱凌玮
Owner 朱凌玮
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