Method for in situ restoring groundwater azotate pollution with corn stalk

A technology of corn stalks and in-situ restoration, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the waste of biomass energy, pollute the atmospheric environment, and destroy farmland soil microbial bacteria To achieve the effect of avoiding environmental pollution, maintaining the ecological balance of microorganisms, and solving the problem of comprehensive utilization
CN101492206BInactive Publication Date: 2011-04-20HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2011-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for remedying the nitrate pollution of underground water in situ with maize straws, which is characterized in that maize straws or a maize straw hydrolysate serving as a denitrification carbon source and flora-enriched liquid rich in denitrifying bacteria florae are added in nitrate polluted underground water to remove nitrate nitrogen from underground water through bio-denitrification. The method realizes the harmless use of biomass maize straws and remedies the nitrate pollution of underground water effectively.
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Description

technical field

[0001] The invention relates to a method for remediating pollutants, in particular to an in-situ remediation method for nitrate-contaminated groundwater, specifically a method for removing and preventing nitrate-contaminated groundwater by using corn stalks or / and corn stalk hydrolyzate and denitrifying bacterial flora Methods of groundwater nitrate contamination. Background technique

[0002] The pollution of nitrate in groundwater has become increasingly serious since the 1960s. Because of its stable nature and high solubility, it migrates with groundwater and has become the most common environmental factor for groundwater pollution in many areas of the world (especially lake basins). The excessive use of agricultural chemical fertilizers, the sharp increase in industrial sewage discharge, and the large-scale sewage irrigation of farmland have led to serious nitrate pollution in groundwater.

[0003] A large amount of nitrate in groundwater is harmful to t...

Claims

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