Water treatment method of removing radioactive iodine pollutants by using permanganate and activated carbon together

Abstract

The invention relates to a water treatment method of removing radioactive iodine pollutants by using permanganate and activated carbon together. The water treatment method of removing the radioactive iodine pollutants by using the permanganate and the activated carbon together mainly solves the technical problems that an existing water treatment method of removing radioactive iodine pollutants is high in operation cost and complex in operation. The water treatment method of removing radioactive iodine pollutants by using the permanganate and the activated carbon includes the following steps that firstly, the permanganate and the powder activated carbon are added into water which is to be treated and contains radioactive iodine ions, and are mixed with the water. The hydraulic retention time ranges from 20 minutes to 180 minutes and a blended solution is obtained. Secondly, a coagulant is added into the blended solution obtained in the first step and the radioactive iodine in the water can be removed by means of coagulating, depositing and filtering of a conventional water treatment technology. The water treatment method of removing the radioactive iodine pollutants by using the permanganate and the activated carbon together has the advantages of being high in removal efficiency, simple in technology, flexible and convenient to operate, free of changing an original treatment technology of a water plant, low in operation cost and the like. The removal efficiency of the radioactive iodine ions in the water can reach 90% or above. The water treatment method of removing radioactive iodine pollutants by using the permanganate and the activated carbon is applied to the field of treating radioactive-iodine-polluted water.

Description

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AI Technical Summary

Benefits of technology

This technology uses permeable anion polymer (PAM) particles or porous silica gel-based materials to remove contaminants such as metals like lead chromium(VI), arsenite (AsⅢ). These PAM particles have been found effective at removing various types of metal ion compounds including silver chlorides, mercury sulfates, selenium dioxin, polonitrogen gas, nitrifying amines, etc., while also being able to bind different chemical moieties onto their surfaces through hydrophobization interactions between them. By combining these treatments together they provide efficient and selective methods for purification of waters containing unwanted substances.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding a suitable solution for removing unwanted or dangerous levels of ionic radiodiators from wastewater streams without requiring expensive equipment such as advanced technology systems like ultraviolet light reactors.

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