Preparation method of water purification fiber filtering core material with broad-spectrum adsorption performance and water purification filtering core

Abstract

A purpose of the invention is to provide a preparation method of a water purification fiber filtering core material with broad-spectrum adsorption performance and a water purification filtering core.The preparation method comprises: preparing a hyperbranched amine modified cotton fiber filtering cloth layer, wherein the raw materials required for preparing the hyperbranched amine modified cottonfiber filtering cloth layer comprise: a cotton fiber filtering cloth, DMAc, HPAMAM and TMC; sequentially screwing an RO membrane layer, the hyperbranched amine modified cotton fiber filtering cloth layer, an active carbon layer and a PP cotton layer outside a filtering core rod; sleeving the PP cotton layer with a layer of a net sleeve shell body; and adhering a filtering core cover at the end portion of the filtering core rod by using a hot melt adhesive. According to the invention, the prepared water purification fiber filtering core material has broad-spectrum removal performance on variouspollutants, can adsorb pollutants in various existing forms such as positively charged pollutants, negatively charged pollutants, uncharged pollutants and the like, is not prone to desorption, has excellent flexibility, and can effectively relieve the impact force of water flow.

Description

technical field [0001] The invention relates to a water purification filter element and a preparation method thereof. Background technique [0002] With the advancement of urbanization, the problem of heavy metal pollution and organic pollution has become increasingly prominent. Heavy metal ions and organic substances have become important pollutants in water pollution due to their high toxicity, high carcinogenicity, difficult degradation and easy accumulation in organisms. These pollutants come from a wide range of sources, such as positively charged, negatively charged, and uncharged. Drinking water directly affects human health, and there is an urgent need to study efficient water purification materials and technologies. [0003] Most of the current water purifiers use multi-stage filter elements such as PP cotton filter elements, activated carbon filter elements, and RO membrane filter elements to filter step by step to meet drinking water standards. However, there are...

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Problems solved by technology

However, there are unreasonable design of the existing filter element, such as the use of PP filter element, but its filtration accuracy is not high, it is suitable for the primary filtration of water, it is limited to the removal of some micron-sized particles, and there is no interception of soluble heavy metal ions and organic matter Function: Activated carbon filter element is used to adsorb chemical substances in water and eliminate color and odor in water, but it is mainly based on physical adsorption and has limited adsorption capacity for heavy metal ions

In addition, the activated carbon water purification filter element is prone to cracking and falling off of the carbonaceous material. The broken carbonaceous material will scratch the surface of the membrane and lose the filtering effect, greatly reducing the service life of the filter element; the RO membrane filter element is used to filter bacteria, viruses, Harmful substances such as inorganic salts, heavy metal scale, microorganisms, etc., but its filtration efficiency is average, the cost is expensive, and the replacement cost is high

Therefore, the above-mentioned filter elements cannot effectively purify and filter drinking water thoroughly, and the removal effect on heavy metal ions and organic matter is very poor.

In addition, due to the single function of the existing water purifier filter element, in order to effectively remove various pollutants in the water, it often needs to be composed of multiple filter columns, and the required volume of the filter element is relatively large.

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