Preparation method for composite zero-valent iron dechlorination agent from flos sophorae and application of composite zero-valent iron dechlorination agent

A zero-valent iron and Sophora japonica technology is applied in the field of environmental remediation, which can solve problems such as affecting the use effect, easy failure in storage and transportation, and reducing reactivity, and achieves the effects of uniform load, good dispersion, and increased specific surface area.
CN110550720AInactive Publication Date: 2019-12-10BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2019-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of environmental restoration, and in particular, relates to a preparation method for a composite zero-valent iron dechlorination agent from flos sophorae and an application of the composite zero-valent iron dechlorination agent, wherein the composite zero-valent iron dechlorination agent can degrade chlorine-containing organic matters. The preparation method comprises the steps of pretreatment of biochar, preparation of a flos sophorae dissolution liquid, preparation and loading of zero-valent iron and the like. The composite zero-valent iron dechlorination agent has the advantages of large loading capacity, good dispersity, uniform loading, large specific surface area and the like, has excellent reaction activity in reduction and dechlorination of chlorine-containing organic pollutants, has good degradation effect, and cannot cause secondary pollution to the environment in the repair process.
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Description

technical field

[0001] The invention relates to the field of environmental restoration, in particular to a method and application of a compound zero-valent iron dechlorination agent prepared from Sophora japonica that can degrade chlorine-containing organic substances. Background technique

[0002] Chlorine-containing organic compounds include chlorinated hydrocarbons, chlorinated aromatic hydrocarbons, and organochlorine pesticides. As an important class of modern chemical production raw materials and intermediates, they are widely used due to their large-scale production and high persistence in the environment. in groundwater and soil. At the same time, chlorinated organic pollutants can pose serious threats to human life and the environment, such as carcinogenicity and cytotoxicity to the central nervous system, immune system, and endocrine system. Chlorine-containing organic compounds have the characteristics of high residue and refractory degradation, and the direct us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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