Sulfate reducing bacteria and application thereof

A sulfate and desulfurization Desulfovibrio technology, applied in the field of sulfate pollution repair, can solve the problem of low sulfate tolerance concentration, and achieve the effect of excellent microbial germplasm resources and strong reducing ability

Active Publication Date: 2022-05-06
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a sulfate-reducing bacteria and its

Method used

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  • Sulfate reducing bacteria and application thereof
  • Sulfate reducing bacteria and application thereof
  • Sulfate reducing bacteria and application thereof

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0018] 1. Screening of strains

[0019] Sediment samples were collected from the ionic rare earth tailings reservoir area of ​​Dingnan County Ruiyuan Biotechnology Co., Ltd., Ganzhou City, Jiangxi Province, collected in sterile 50mL centrifuge tubes, and transported back to the laboratory in a 4°C ice bath, and placed in 4 Store at ℃.

[0020] The pH value of the sediment sample was 4.2. After the sediment was treated with phosphate buffered saline (PBS), 1 g of the sample was taken and 50 mL of Postgate enrichment medium was added. The medium formula was a...

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Abstract

The invention provides a sulfate reducing bacterium and application thereof, the sulfate reducing bacterium is a desulfurization vibrio, is named as Desulfovibrio desulfuricans strain REO-01, is preserved in China General Microbiological Culture Collection Center on January 7, 2022, the address is No. 3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, and the strain preservation number is CGMCC NO.24267. The invention further provides a preparation method of the sulfate reducing bacterium. The sulfate reducing bacteria can effectively solve the problem of low sulfate tolerance concentration of the existing sulfate reducing bacteria.

Description

technical field [0001] The invention belongs to the technical field of sulfate pollution restoration, and in particular relates to a sulfate-reducing bacterium and an application thereof. Background technique [0002] Ionic rare earth mines often use sulfate as a leaching agent to extract rare earth elements. During the leaching process, a large amount of sulfate radicals remain in the tailings soil, which leads to soil acidification and damage to the soil structure, and the acidic soil environment will further lead to soil The heavy metal elements associated with rare earth elements are activated and migrate under the action of surface runoff, soil seepage and other factors, which will aggravate the pollution of the local soil and water environment and endanger the lives and health of the local people. Sulfate is an electron acceptor necessary for the growth and metabolism of sulfate-reducing bacteria, and the ionic rare earth tailings soil with a large amount of sulfate re...

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Application Information

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IPC IPC(8): C12N1/20C02F3/34C02F11/02B09C1/08B09C1/10C12R1/01C02F101/10
CPCC12N1/20C02F3/34C02F3/345C02F11/02B09C1/08B09C1/105C02F2101/101Y02A50/20
Inventor 韦朝阳张萍杨芬
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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