【摘要】 采用复合共聚生产工艺合成了聚硅硫酸铁。考察了pH、二氧化硅含量和温度对硅酸聚合时间的影响以及Fe/SiO₂摩尔比对聚硅硫酸铁用于油田污水处理的除污效果的影响。确定优化合成条件为:pH 4～5,二氧化硅含量4%,温度20～30℃,Fe/SiO₂摩尔比0.8。对透光率为26%的含油污水进行处理,最佳投药量为800 mg/L,处理后污水透光率可达98%。更多还原

【Abstract】 Polysilicon ferric sulfate（PFSS）was synthesized by copolymerization.The effects of pH,content of silica and temperature on silicate polymerization time were examined,and the effect of molar ratio of Fe to SiO₂ on the decontamination of PFSS in oily wastewater treatment was studied.The optimal synthesis conditions were as follows:pH 4～5,the content of silica 4%,temperature 20～30℃,n（Fe）:n（SiO₂）=0.8.When the transmission rate of oily wastewater was 26%,the best dosage of PFSS was 800 mg/L,and the transmission rate of treated sewage was up to 98%.更多还原