Preparation method of microparticles for removing organic chlorine residue in drinking water source

Abstract

The invention relates to a preparation method of microparticles for removing organic chlorine residue in a drinking water source and belongs to the field of environmental protection. The preparation method comprises carrying out rolling granulation on carbon black by a low speed roller, wherein in rolling granulation, deionized water and carbon black powder are sprinkled to the carbon black so that the materials are bonded and are rolled to form particles, after rolling granulation, taking out the carbon black particles with different sizes, carrying out dispersion, carrying out drying, taking out the particles, grinding marble particles to obtain ultrafine calcium carbonate particles, uniformly scattering the ultrafine calcium carbonate particles into a polydimethylsiloxane solution, carrying out mixing stirring to obtain a uniform mixture, then uniformly sprinkling the mixed polydimethylsiloxane solution by a rotation machine, carrying out air-flow injection, carrying out washing by hydrochloric acid, carrying out flushing and carrying out drying to obtain the microparticles for removing organic chlorine residue in a drinking water source. The microparticles have chlorine residue removal efficiency of 99% or more, have high treatment effects, have short treatment time, do not occupy a large area of land, have simple treatment processes and have a high cost.

Description

technical field [0001] The invention relates to a preparation method for removing organic residual chlorine microparticles in drinking water sources, and belongs to the field of environmental protection. Background technique [0002] Residual chlorine refers to the effective chlorine remaining in the water after the water has been chlorinated and disinfected for a certain period of time. Disinfectants should be added to the tap water during the water purification process to inactivate pathogenic microorganisms in the water. Due to the high cost performance of chlorine gas, it is widely used in the domestic water treatment industry. If the concentration of residual chlorine in tap water is too high, the main hazards are: strong irritation and damage to the respiratory system. It is easy to react with organic matter in water to generate carcinogens such as chloroform. It can cause damage to skin cells and intercellular matrix, which can easily cause dry skin, chapped, pimple...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: Aiming at the disadvantages of low treatment efficiency, long treatment time and large occupied area of ​​organic residual chlorine particles in the drinking water source treated by the microbial anaerobic degradation treatment method, a method for removing the drinking water source is proposed. A method for preparing organic residual chlorine microparticles. In this method, polydimethylsiloxane is loaded on the surface of carbon black particles, and then calcium carbonate is removed by hydrochloric acid to obtain an adsorbent, which is used to treat drinking water The organic residual chlorine in the source has a good treatment effect, and the effect of removing residual chlorine reaches more than 99%. At the same time, the operation is simple and the cost is low.