A kind of bacillus licheniformis and its preparation and method for treating waste water

A Bacillus licheniformis, waste water treatment technology, applied in the direction of microbial-based methods, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of unsuitable large-volume landfill leachate treatment and high treatment costs

Active Publication Date: 2021-05-18
SHENZHEN ZHONGNAN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a bacillus licheniformis and its preparation and a method for treating wastewater, aiming at solving the problem that the existing physical and chemical methods have relatively high treatment costs and are not suitable for large-volume landfill leachate treatment

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  • A kind of bacillus licheniformis and its preparation and method for treating waste water
  • A kind of bacillus licheniformis and its preparation and method for treating waste water

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Embodiment 1

[0036] The sewage used in this embodiment comes from the leachate of the Shenzhen Municipal Landfill, and the contents of the indicators in the water body are as follows in Table 1 after testing:

[0037] Table 1. Wastewater indicators of leachate

[0038]

[0039] Adopt the method for treating wastewater of the preparation of the present invention to process it, comprising the following steps:

[0040] 1. Take 0.1L landfill leachate wastewater;

[0041] Add 30ml of Bacillus licheniformis PPL-SSC6 bacterial solution that has been shaken for 48 hours, stir for 10 minutes, settle for 24 hours, and filter.

[0042] The measured filtrate pH is 6.5 COD is 4200, and the removal rate is 90.7%.

[0043] 2. Take 0.1L domestic sewage

[0044] Added 0.1 ml of bacterial solution of Bacillus licheniformis PPL-SSC6 which had been shaken for 48 hours, stirred for 10 minutes, allowed to settle for 24 hours, and then filtered.

[0045] The pH of the filtrate was measured to be 6.5, the ...

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Abstract

The invention discloses a bacillus licheniformis, its preparation and a method for treating waste water. The Bacillus licheniformis is Bacillus licheniformis PPL-SSC6, which is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M2017200. The bacillus licheniformis PPL-SSC6 of the present invention has the function of a biological detergent, has no pollution to the environment, and can be used for the treatment of landfill leachate and domestic wastewater. The bacterium liquid, bacterium powder or granule preparation made by the Bacillus licheniformis PPL-SSC6 is added to the landfill leachate, and the odor of the landfill leachate can be removed within 24 hours, so that the water forms layers and becomes clear. The preparation made by Bacillus licheniformis PPL-SSC6 is added into domestic wastewater, and within 10min-24h, dirty substances in domestic wastewater can be flocculated and precipitated, and peculiar smell can be removed.

Description

technical field [0001] The invention relates to the technical field of domestic sewage purification, in particular to a bacillus licheniformis and its preparation and a method for treating waste water. Background technique [0002] The treatment of leachate in urban waste landfills has always been a very difficult problem in the design, operation and management of landfills. Leachate is the product of gravity flow of liquid in a landfill, mainly from precipitation and the embedded water of the waste itself. Since many factors may affect the properties of the leachate during the flow of the liquid, including physical factors, chemical factors and biological factors, the properties of the leachate vary within a considerable range. Generally speaking, the pH value is between 4 and 9, the chemical oxygen demand (COD) is in the range of 2000 to 62000mg / L, the biochemical oxygen demand (BOD5) is 60 to 45000mg / L, the concentration of heavy metals and municipal sewage The concentr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C02F3/34C12R1/10
CPCC02F3/34C12N1/20C12N1/205C12R2001/10
Inventor 戴泽民苑伟东
Owner SHENZHEN ZHONGNAN ENVIRONMENTAL PROTECTION TECH CO LTD
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