Meyerozyma guilliermondii and method for treating high-salinity wastewater

A high-salt wastewater and yeast technology, applied in the direction of microorganism-based methods, seawater treatment, chemical instruments and methods, etc., can solve the problems of high cost and affect the production efficiency of processing plants, and achieve the effect of low cost and simple operation

Pending Publication Date: 2021-03-16
DALIAN OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high-salt wastewater produced by kelp and wakame processing can be treated by using the MVR high-efficiency evaporation and crystallization system, the cost is relatively high (100-120 yuan / ton), which directly affects the production efficiency of the processing plant

Method used

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  • Meyerozyma guilliermondii and method for treating high-salinity wastewater
  • Meyerozyma guilliermondii and method for treating high-salinity wastewater
  • Meyerozyma guilliermondii and method for treating high-salinity wastewater

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Effect test

Embodiment 1

[0021] In the present invention, the bacterial strain capable of utilizing organic matter in high-salt wastewater is Pichia mongoliana ( Meyerozyma guilliermondii ), which has been deposited in the General Microbiology Center of the China Committee for the Collection of Microorganisms, code-named HSKeW-M, and the preservation number is CGMCC No.18675.

[0022] The method for processing high-salt wastewater with the above-mentioned Pichia quaternerii is carried out according to the following steps:

[0023] a. Gradually expand the cultivation of the above-mentioned Pichia mongolica (CGMCC No.18675) seed solution;

[0024] b. Add 8 times the volume of the expanded culture to the high-salt wastewater produced by kelp processing and the high-salt wastewater produced by wakame processing at a volume percentage of 5% respectively. Incubate for 60 hours.

[0025] The kelp processing high-salt wastewater and the wakame processing high-salt wastewater processed through the above meth...

Embodiment 2

[0027] The method for treating high-salt waste water with the above-mentioned Metchiella bitipina is carried out according to the following steps:

[0028] a. Combine the above-mentioned Pichia quaziermontii (CGMCC No.18675) with the preservation number of CGMCC No. Metschnikowia bicuspidate ) According to the volume ratio of 1:1, the composite seed solution is gradually expanded and cultivated;

[0029] b. Add 8 times the volume of the expanded culture to the high-salt wastewater produced by kelp processing at a volume percentage of 3%, and cultivate it on a shaker at 150 r / min for 60 hours at 20 °C.

[0030] The potassium permanganate oxidation method was used to measure the COD of the high-salt wastewater produced by kelp processing treated by the above method, and the results were as follows: image 3 shown. The results showed that the COD removal rate of high-salt wastewater produced by kelp processing was 85.98%.

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Abstract

The invention discloses Meyerozyma guilliermondii, which is preserved in the China General Microbiological Culture Collection Center (CGMCC) and has a preservation number of CGMCC No.18675. The methodfor treating high-salinity wastewater by using the meyerozyma guilliermondii comprises the following steps: gradually carrying out enlarged culture on a metschnikowia bicuspidate seed solution; and adding the bacterial liquid with the volume multiplied by enlarged culture into the high-salinity wastewater, and performing culturing. The method is simple to operate and low in cost, and has a COD removal rate on kelp processing produced high-salinity wastewater being 84.61 percent and a COD removal rate on undaria pinnatifida processing produced high-salinity wastewater being 75.50 percent to reach the emission standard of city pipe network.

Description

technical field [0001] The present invention relates to a kind of bacterium and treatment method for waste water treatment, especially a kind of Pichia mongolica (Latin literature name) Meyerozyma guilliermondii , Deposit date: 2019-10-12; Deposit unit: General Microbiology Center of China Microbiological Culture Collection Management Committee; Preservation number: CGMCC No.18675) and a method for treating high-salt wastewater. Background technique [0002] In order to prevent fresh kelp and wakame from spoiling, usually the fresh vegetables after harvesting are blanched, cooled and salted immediately to realize sterilization and dehydration. The blanching water is seawater heated repeatedly to about 95 degrees, and after 8-10 hours of recycling, it becomes high-salt wastewater, in which the content of organic matter (algin, mannitol, etc.) and inorganic matter is high, and the COD value can reach 1200~ 2100, if this high-salt wastewater is discharged directly, it will cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/16C02F3/34C12R1/84C12R1/645C02F101/30C02F103/08
CPCC12N1/16C02F3/347C02F2101/30C02F2103/08
Inventor 汪秋宽何云海杨婷婷刘舒任丹丹刘晓勇
Owner DALIAN OCEAN UNIV
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