Process for preparing novel silver loaded active carbon by rheological phase reaction method

Abstract

The invention relates to a process for preparing novel silver loaded active carbon by a rheological phase reaction method, comprising the following steps of: evenly mixing finely ground tetrasilver tetroxide and active carbon according to mass ratio of 1:800-12000, adding water into the mixed material to stir the mixed material into a flowing deformation state, wherein each part of the active carbon is added with 1-2 parts of water; vacuum drying for 10-40min under 60-150 DEG C; adding potassium persulfate or sodium persulfate, sodium hydroxide or potassium hydroxide into the mixed material for finely grinding; adding distilled water in the material to stir into the flowing deformation state, wherein the contents of the added potassium persulfate or sodium persulfate, sodium hydroxide or potassium hydroxide are 1-3 times of that of each part of tetrasilver tetroxide; finally vacuum drying for 10-30min under 80-110 DEG C, filtering, and washing for 2-4 times by pure water. The invention is featured with simple technology for preparing adhesion trivalent silver active carbon, high synthetic efficiency and low energy consumption; the silver ions are evenly distributed on the active carbon, fixedly adhered and difficult for falling off. The product has obvious action to various microorganisms, and is safe to environment and human.

Description

Preparation process of a new type of silver-loaded activated carbon by rheological phase method Technical field: The invention relates to a rheological phase method preparation process of novel silver-loaded activated carbon, which belongs to the technical field of water treatment. Background technique: Activated carbon fiber (ACF) not only contains a large number of micropores and a large specific surface area, but also contains a large number of organic groups on its surface. Therefore, activated carbon fiber not only has good adsorption performance on organic matter, but ordinary water purification activated carbon can also absorb and enrich harmful substances and microorganisms in water during use, but a single activated carbon is easy to grow and reproduce bacteria, resulting in an increase in the number of bacteria in filtered water. And generate mutagenic substance nitrite, resulting in deterioration of outlet water quality. Silver has been known as a fungicide sin...

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Problems solved by technology

Therefore, activated carbon fiber not only has good adsorption performance on organic matter, but ordinary water purification activated carbon can also absorb and enrich harmful substances and microorganisms in water during use, but a single activated carbon is easy to grow and reproduce bacteria, resulting in an increase in the number of bacteria in filtered water. And generate mutagenic substance nitrite, causing the outlet water quality to deteriorate

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