P.A.C는 양전하가 높고 가교성이기 때문에 황산알루미늄에 비해서 강력한 응집 작용이 있으며, 황산알루미늄에 비교해서 저탁성의 경우 1.2-1.5배, 고탁성의 경우 2~5배의 뛰어난 제탁효과를 갖고 있습니다. 또 적정주입률의 폭이 원수탁도의 변도에 대한 조업상의 안전성을 높 여줍니다.
화학적 성질
Polyaluminum chloride (PAC) is white, light gray, light yellow or brown crystals or powders. The color varies with the production process and raw materials. It is slightly acidic. After dilution with water, aluminum hydroxide precipitates. In the hydrolysis process, physical and chemical processes such as electrochemistry, coagulation, adsorption and precipitation are accompanied, so as to achieve the purpose of water purification.
용도
Polyaluminum chloride has the advantages of high adsorption activity, wide range of pH value, no need for coagulation aids and no influence of water temperature, etc. It is widely used in water purification treatment of domestic water, industrial water, etc.
제조 방법
In the mixed solution of aluminum sulfate and aluminum trichloride, lime and limestone are added to make sulfate ions and calcium form insoluble calcium sulfate precipitation, which is separated from the mixed solution to increase the aluminum-chloride equivalent ratio, thereby obtaining a certain aggregate polyaluminum chloride.
POLYALUMINUM CHLORIDE 공급 업체
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