Method for removing nitrate nitrogen in water body

A technology of nitrate nitrogen and water body, applied in the field of environmental chemistry, can solve the problem of removing nitrate nitrogen, which has not been reported, and achieves the effects of protecting excellent characteristics, rapidly removing, and increasing specific surface area
CN103964550AInactive Publication Date: 2014-08-06CHANGAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGAN UNIV
Publication Date
2014-08-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a method for removing nitrate nitrogen in a water body, which comprises the following steps: 1, adding ferrous sulfate heptahydrate, polyethyleneglycol and graphene into deoxidized distilled water, mixing to prepare a suspension, then adding a potassium borohydride solution into the suspension, stirring, filtering, and washing to obtain graphene loaded nano iron; and 2, uniformly mixing the graphene loaded nano iron and a water body to be treated, and then performing constant-temperature oscillation treatment, thus ensuring that the removal rate of nitrate nitrogen in the water body is above 85%. According to the invention, the nitrate nitrogen in the water body is removed by using the graphene loaded nano iron, so that the method is simple in technical process, low in production cost and easy to realize popularization and application, maximally keeps the favorable characteristics of graphene and nano iron, and can efficiently and quickly remove the nitrate nitrogen in the water body, thereby obviously improving the nitrate nitrogen removal effect and having wide application value.
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Description

technical field

[0001] The invention belongs to the technical field of environmental chemistry, and in particular relates to a method for removing nitrate nitrogen in water bodies. Background technique

[0002] In recent years, with the rapid development of industry, agriculture and economy, water pollution has become more and more serious. Nitrate nitrogen has become one of the most common pollutants entering water bodies, and the pollution has a worsening trend. The increase of nitrate concentration in drinking water will cause serious harm to human health. Therefore, the removal of nitrate nitrogen pollution in water bodies Research has become a hot environmental issue of worldwide concern.

[0003] The remediation technologies for nitrate nitrogen pollution in water bodies are mainly divided into three categories according to the remediation principles: physical and chemical remediation technology, biological remediation technology and chemical reduction technology. Ph...

Claims

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