TY - JOUR
T1 - Preparation and applications of inorganic polymer composite flocculant poly aluminum ferric sulfate
AU - Zheng, Huaili
AU - Chen, Wenyuan
AU - Zhang, Zhi
AU - Sun, Yongjun
AU - Guan, Qingqing
AU - Liu, Liwei
AU - Lu, Wei
AU - Zheng, Xiaokai
PY - 2013/7
Y1 - 2013/7
N2 - Industrial by-products FeSO4·7H2O is taken as raw material, concentrated nitric acid as strong oxidant and aluminum sulfate as additive to produce poly aluminum ferric sulfate (PAFS) flocculants, which is applied to the removal of organic humic acid. The study includes the reaction temperature, reaction time, Al/Fe molar ratio and basicity (OH/Fe). Infrared spectroscopy and scattering electron are used to characterize the structure of the PAFS. The results show that the product have the best coagulation effect when reaction temperature, reaction time, Al/Fe molar ratio and basicity (OH/Fe) are 60-80°C, 30-50 min, 1:9 and 0.3 respectively. Infrared spectroscopy analysis shows the product's structure and scattering electrons analysis suggests a large surface area and a strong condensed state for PAFS. The removal rate of humic acid is 94.72% when the dosage of PAFS is 3.36 mg /L, pH value is 7, rapid stirring speed is 350 rpm, fast mixing time is 2.0 min, the slow stirring speed is 40 rpm and slow stirring time is 12 min.
AB - Industrial by-products FeSO4·7H2O is taken as raw material, concentrated nitric acid as strong oxidant and aluminum sulfate as additive to produce poly aluminum ferric sulfate (PAFS) flocculants, which is applied to the removal of organic humic acid. The study includes the reaction temperature, reaction time, Al/Fe molar ratio and basicity (OH/Fe). Infrared spectroscopy and scattering electron are used to characterize the structure of the PAFS. The results show that the product have the best coagulation effect when reaction temperature, reaction time, Al/Fe molar ratio and basicity (OH/Fe) are 60-80°C, 30-50 min, 1:9 and 0.3 respectively. Infrared spectroscopy analysis shows the product's structure and scattering electrons analysis suggests a large surface area and a strong condensed state for PAFS. The removal rate of humic acid is 94.72% when the dosage of PAFS is 3.36 mg /L, pH value is 7, rapid stirring speed is 350 rpm, fast mixing time is 2.0 min, the slow stirring speed is 40 rpm and slow stirring time is 12 min.
KW - Humic acid
KW - Inorganic composite flocculant
KW - Poly aluminum ferric sulfate(PAFS)
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=84884467320&partnerID=8YFLogxK
U2 - 10.11835/j.issn.1000-582X.2013.07.020
DO - 10.11835/j.issn.1000-582X.2013.07.020
M3 - 文章
AN - SCOPUS:84884467320
SN - 1000-582X
VL - 36
SP - 114
EP - 120
JO - Chongqing Daxue Xuebao/Journal of Chongqing University
JF - Chongqing Daxue Xuebao/Journal of Chongqing University
IS - 7
ER -