Alcaligenes and its application to the treatment of chromium-containing wastewater

A technology for wastewater treatment and alkali-producing bacteria, which is used in biological water/sewage treatment, water/sludge/sewage treatment, bacteria, etc., and can solve the problems of low reducing ability, low hexavalent chromium resistance, and long reduction time. problem, to reduce toxicity and promote transformation
CN106011009BActive Publication Date: 2019-05-14RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2019-05-14

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Abstract

The invention discloses an alcaligenes and its application to the treatment of chromium-containing wastewater. The strain is Alcaligenes sp.GTM2, and the strain is preserved in the General Microorganism Center of China Microbial Strain Preservation Management Committee, and the preservation place is Beijing Institute of Microbiology, Chinese Academy of Sciences, No. 1, Courtyard 1, Beichen West Road, Chaoyang District. The preservation registration number is CGMCC No. 12347, and the preservation date is April 15, 2016. Alcaligenes GTM2 provided by the present invention has a reduction effect on hexavalent chromium: it is reduced from 1000mg / L to 110mg / L within 24h, and the reduction rate is 89%; Direct dosing of 1% Alcaligenes sp.GTM2 bacteria has a strong reduction ability, and the reduction rate is about 28-56%. Therefore, it can be used for the restoration of chromium-polluted water bodies, which can promote the conversion of available chromium to unusable chromium, reduce Chromium toxicity.
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Description

technical field

[0001] The invention relates to the technical field of environmental microbial restoration, in particular to an Alcaligenes sp. and its application to the treatment of chromium-containing wastewater. Background technique

[0002] With the rapid development of the global economy, heavy metal pollution has become one of the more and more important environmental issues. Although chromium is an essential trace element for the human body, excessive hexavalent chromium is highly toxic because hexavalent chromium can pass through prokaryotic and eukaryotic cell membranes to cause oxidative cell damage and cause teratogenic and carcinogenic diseases.

[0003] Chromium salt series products are important basic raw materials for chemical industry-light industry-advanced alloy materials, and are widely used in tanning, electroplating, alloys, pigments, printing and dyeing, offset printing and agriculture. The annual output of chromium salt in my country has exceeded 160...

Claims

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