Coal ash activation chemical synthesis technique, preparation of fast flocculant by applying the coal ash and use thereof

Abstract

The present invention provides a new technology, chemical synthesizing an activator by fly ash, and combining the activator to flocculating agent composite. The technology utilizes rejectamenta and applies in sewage disposal and soil improvement, having wide purposes, beneficial to circular economy. The technology effectively reduces turbidness of sewage in a moment to level and standard of tap water or discharging water, having no secondary pollution and beneficial to human body and environment. Mipor sphere structure and special synthetic technology of the combination provide larger specific area and larger void ratio in mud water system, having strong adhesive attraction and wetting resistance, and provides effectively multi-functional medium carrier, increasing contact surface of attached matter substantially. If matching special sewage desliming equipment, the mud and water are completely separated, the drying function makes mud to dry mud, used as fertilizer and backfill, utilizing source substantially.

Description

Technical field [0001] The invention relates to the field of water treatment, in particular to a novel flocculant and its preparation method and application. Background technique [0002] The World Health Organization survey pointed out that 80% of human diseases are related to water pollution. According to statistics, more than 25 million children in the world die from drinking contaminated water every year. At the end of March 2005, the Chinese government officially issued a warning about water pollution through China Daily. Government officials also stated for the first time that it is estimated that 360 million Chinese people lack safe drinking water. In addition, the government also admits that 70% of rivers and lakes in China are polluted. "Water pollution" has become the most important water environmental problem in China. [0003] Flocculation has become one of the important methods of modern water treatment, and it has been widely used in the treatment of surface water a...

AI Technical Summary

Problems solved by technology

[0004] Among them, inorganic flocculants are mainly aluminum and iron salts and polymer salts. The disadvantages of this type of flocculants are that they can only deal with a certain type of relatively simple water quality, and the treatment time is long, the amount is large, and the treatment process is complicated; the cost is relatively high. , the treatment is not clean and thorough, and aluminum salts are currently considered to be harmful to the environment

[0005] In addition to being expensive, organic flocculants also have the problems of incomplete treatment, long treatment time, complicated supporting equipment, and secondary pollution and emissions.

[0006] Naturally purified flocculants are expensive, costly, and have poor treatment effects

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