Method for treating water containing organic arsenic

A treatment method and technology for organic arsenic, which are applied in the treatment of polluted groundwater/leachate, light water/sewage treatment, oxidized water/sewage treatment, etc. problem, to achieve the effect of preventing drinking water pollution
CN100344554CInactive Publication Date: 2007-10-24ASTEC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ASTEC
Publication Date
2007-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for treating organic arsenic-containing water which can prevent drinking water from being contaminated by removing diphenylarsine acid representative as an organic arsenic contained in ground water. The method for treating the organic arsenic-containing water comprises a photo-oxidation process of irradiating raw water containing the organic arsenic including a bond between an organic group and an arsenic atom with light to dissociate the bond between the organic group and the arsenic atom, and a process of carrying out flocculation treatment of arsenic or an arsenic compound generated by dissociation in the photo-oxidation process, wherein the photo-oxidation process is preferably irradiated with light in the presence of ozone.
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Description

technical field

[0001] The present invention relates to a method for treating water containing organic arsenic, and in particular, relates to a method for treating water containing organic arsenic that can prevent contamination of drinking water by removing diphenylarsinic acid, which is a representative organic arsenic contained in groundwater. . Background technique

[0002] Since January 2004, the Ministry of the Environment has analyzed the poisonous gas-related substances in the well water at the former site of the chemical experiment department of the former Sagami Naval Factory. As a result, it was reported in March that 0.001 mg / l (as converted to arsenic) of diphenylarsine was detected. Acid (DPAA), so Hiratsuka City, Kanagawa Prefecture has taken measures to suspend the drinking of well water around the former site of the chemical experiment department of the former Sagami Naval Factory and in the lower basin.

[0003] In September 2004, it was also reported in Ib...

Claims

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