Method for remedying nitrate pollution in groundwater by adopting Klebsiella sp. DB-2

A groundwater and nitrate technology, applied in water pollutants, microbial-based methods, water/sewage treatment, etc., can solve problems such as low metabolic activity, reduced quantity, and inconspicuous denitrification, and achieve high metabolic activity, The effect of fast removal of nitrate

Inactive Publication Date: 2009-12-30
HEFEI UNIV OF TECH
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Problems solved by technology

However, because the indigenous bacteria contain many types of bacteria, their growth rate is slow and their metabolic activity is not high, and the growth of the required denitrifying bacteria will be inhibited due to the competition for energy, the number will decrease, and the denitrification effect will not be obvious.

Method used

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  • Method for remedying nitrate pollution in groundwater by adopting Klebsiella sp. DB-2
  • Method for remedying nitrate pollution in groundwater by adopting Klebsiella sp. DB-2
  • Method for remedying nitrate pollution in groundwater by adopting Klebsiella sp. DB-2

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Embodiment Construction

[0026] In the specific implementation, Klebsiella sp.DB-2 bacteria are used to remediate nitrate pollution in groundwater, and carbon-containing organic matter is added as a carbon source, including in-situ remediation methods and ex-situ remediation methods.

[0027] In the nitrate-contaminated salt area of ​​groundwater, use electromagnetic prospecting technology to conduct on-site exploration to determine the distribution and direction of incoming and outgoing water in this area. And according to its range (length, width, depth) to calculate the total water volume V of groundwater in this area.

[0028] According to the direction of incoming water and outgoing water learned from exploration, select 2 to 3 points and adopt conventional drilling or simpler high-pressure geological direct drilling.

[0029] Water samples were taken to analyze the nitrate nitrogen content, nitrite nitrogen content, TOC, and denitrifying bacteria concentration of the well water.

[0030] Among ...

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Abstract

A method for remedying nitrate pollution in groundwater by adopting Klebsiella sp. DB-2 is characterized by taking soluble carbonaceous organic materials as carbon sources and the purified Klebsiella sp. DB-2 as a bioremediation strain. The method comprises in-situ remediation and ex-situ remediation. The method of the invention can be effectively used for bioremediation of the nitrate pollution in the groundwater.

Description

technical field [0001] The present invention relates to a method for remediating pollutants, in particular to a method for remediating nitrate-contaminated groundwater, specifically a method for remediating nitrate-contaminated groundwater by using soluble carbon-containing organic matter and Klebsiella sp.DB-2 bacteria . Background technique [0002] The excessive use of agricultural chemical fertilizers, the sharp increase in industrial sewage discharge, and the large-scale sewage irrigation of farmland have seriously polluted the groundwater with nitrate nitrogen. The groundwater in most parts of my country has been polluted by nitrate to varying degrees, and the pollution level is constantly increasing. Increase. A large amount of nitrate in groundwater is harmful to the health of humans, animals and plants. Most of the nitrate ingested by the human body comes from vegetables and drinking water. High concentration of NO 3 - The ingestion of can seriously affect human h...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F1/58C12N1/20C12R1/22C02F101/16
Inventor 钱家忠刘咏陈舟马雷严小三陈天虎
Owner HEFEI UNIV OF TECH
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