A method of using biochar to control combined pollution of hexavalent chromium and organic pollutants

A technology of organic pollutants and compound pollution, which is applied in the field of biochar treatment of compound pollution of hexavalent chromium and organic pollutants, can solve the problems of poor compound pollution control effects, achieve low manufacturing costs, improve treatment efficiency, and avoid secondary pollution Effect
CN109796058BActive Publication Date: 2020-06-02HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2020-06-02

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Abstract

The invention belongs to the field of pollution control, and particularly relates to a method for controlling combined pollution of hexavalent chromium and organic pollutants by using biochar. The method mainly comprises the steps that the specific biochar is added into a combined pollution system of the hexavalent chromium and organic pollutants to control the pH of a reaction in acidity, after aperiod of reaction, the hexavalent chromium and organic pollutants in the combined pollution system can be simultaneously removed. The method for controlling the combined pollution of the hexavalentchromium and organic pollutants by using the biochar has the advantages that the required additive is the biochar, the source is wide, the cost is low, the preparation method is simple, and the energyconsumption is low; in addition, no additional chemical reagents are added in the repair process, thereby reducing the treatment cost, and avoiding secondary pollution caused by the use of chemical reagents. Therefore, the method has broad application prospects in environmental pollution control.
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Description

technical field

[0001] The invention belongs to the field of pollution control, and more specifically relates to a method for treating compound pollution of hexavalent chromium and organic pollutants by using biochar. Background technique

[0002] In real industrial wastewater, more than one pollutant is usually present. For example, in electroplating wastewater and printing and dyeing wastewater, it is usually a complex pollution system in which heavy metal ions and organic pollutants coexist. At present, there are relatively few researches on the control of complex pollution systems. Traditional pollution control technologies mainly focus on the removal of a single pollutant, while other coexisting pollutants in the pollution system will make the overall treatment effect worse. Therefore, for compound pollution, a feasible solution is to gradually separate different types of pollutants into single pollutants, and then use traditional methods for treatment, which will und...

Claims

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