Preparation method of positive charge filtering material and application thereof

Abstract

The invention relates to a preparation method of a positive charge filtering material and application thereof. The preparation method of the positive charge filtering material comprises the steps of material selection, pulverization, swelling processing, charge soaking, dehydration and drying; and the prepared filtering material can be manufactured into a bar structure, a granular structure, a plate structure and a tubular structure, and is inserted into a filtering device for use. Because the invention adopts a natural organic fiber substance as a preparation raw material, the invention is easy to regenerate and has low cost, the processing cost of waste water is also very low, then oily hydrocarbon, such as benzene, toluene, ethylbenzene and xylene mixtures, and other negative ion suspended substances in various industrial or domestic waste water can be effectively removed by coating a coating material with positive charges on the prepared filtering material and utilizing the characteristic of the positive charges, the filtering material can be reused only by removing a filter core and pollutants after full absorption, the saturated filter core can be pulverized to serve as organic fertilizer, and the invention has large economic and social benefits.

Description

technical field [0001] The invention relates to a filter material, in particular to a preparation method and application of a positively charged filter material. Background technique [0002] With the development of society and the improvement of industrialization, many industries will produce a large amount of wastewater in daily production and life, such as oil field reinjection water, car washing water, degreasing cleaning water in surface engineering industry, petroleum refining, hardware processing industry, shipbuilding, etc. Oil and water in the industry and environmental protection industry, urban domestic sewage, etc. These sewage need to be treated, otherwise they will bring great harm to the environment. Adopting filter material to filter is a treatment process commonly used in the wastewater treatment at the present stage. The filter material in the prior art is generally: 1. The mesh number of the surface area net state is used to screen the liquid to remove sol...

AI Technical Summary

Problems solved by technology

Adopting filter material to filter is a treatment process commonly used in the wastewater treatment at the present stage. The filter material in the prior art is generally: 1. The mesh number of the surface area net state is used to screen the liquid to remove solid particles larger than the aperture; 2. Three-dimensional space filtration and separation, according to the technical characteristics of three-dimensional space separation, can make the whole separation and filtration process achieve the purpose of precise separation in the irregular aperture of three-dimensional space filtration, and the filtration accuracy can be further improved, but there are shortcomings, such as Once the three-dimensional space is blocked, it cannot be cleaned. At the same time, the surface of the filter material has a relationship with the substances in the waste water, which will cause the surface pollution of the filter material and block the filtering effect. Moreover, the treatment capacity and filtration performance of the waste water depend on the size of the filter pore size. Filtration accuracy requires the use of high-density, fine-pore three-dimensional space filter materials. This material is expensive to manufacture, and it needs to be treated separately after being discarded. The cost is greater and it is not suitable for a wide range of applications.