Method for preparing active carbon composite filter core

Abstract

The invention discloses a method for preparing an active carbon composite filter core. The used material of the active carbon composite filter core mainly includes active carbon and a macromolecule binding material. A part of specific functional materials, for example, natural molecular sieve zeolite, nano metal cluster, porous natural diatomite and the like are added according to difference of water source quality and difference of purification demands. The product can be obtained by mixing, stirring, pressing, molding and high-temperature sintering the material. The active carbon powder and the functional material are taken as materials; the macromolecule binding material is added to mix and then pressed and molded through the metal die; the active carbon composite filter core with strong rigidity can be prepared in a high-temperature sintering manner; the products with various shapes and sizes can be processed; and the preparation method is simple and feasible, easily available in raw materials, low in cost, strong in pollution removing capacity, long in service life, and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a preparation method of a water purifier filter element, in particular to a preparation method of an activated carbon filter element of a water purifier. Background technique [0002] Due to the pollution of industrial, agricultural, and domestic sewage, the quality of water sources is getting worse and worse, and the dosage of water plants is increasing. As a by-product of disinfection, residual chlorine seriously endangers human health. Chlorine is a strong oxidant, which has adverse effects on human health. Excessive residual chlorine is the fundamental reason for the increase and rejuvenation of cancer and cardiovascular and cerebrovascular diseases in the past century. As a carbonaceous material with well-developed pores, activated carbon has been widely used in separation, purification, catalyst, reagent recovery and others, especially in pollution control. In the field of water purifiers, activated carbon is equivalent ...

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Problems solved by technology

[0003] However, in the actual application process, granular activated carbon also shows many shortcomings.

Under a certain water pressure, due to the fast water flow, the contact time between water and granular activated carbon is very short, the adsorption force is not strong, and the granular activated carbon will form a gap filter during the washing process of the water flow, so that part of the water passes through the carbon bed. There is no access to activated carbon at all times, and the purpose of completely removing residual chlorine, a carcinogen, cannot be achieved

[0004] In addition, the strength of granular activated carbon is low, and the powder is easy to fall off under the impact of water flow, so that the phenomenon of black water pollution occurs; when the surface of activated carbon particles absorbs certain impurities, under the action of water flow, the activated carbon particles roll and rub against each other, making The impurities adsorbed on the surface are easily detached from the adsorption, affecting the water quality of the water purifier and causing secondary pollution

The existing preparation method of activated carbon composite filter element has complex formula, cumbersome process and low product performance

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