煤矸石酸浸液制备聚硫酸铝铁的试验研究  

Preparation of PAFS Using Acid Leaching Solution of Coal Gangue

作　　者：王茜[1] 孔德顺[1] 

机构地区：[1]六盘水师范学院化学与化学工程系,贵州六盘水553004

出　　处：《湿法冶金》2014年第4期297-300,共4页Hydrometallurgy of China

基　　金：贵州省科技厅联合基金项目(黔科合J字LKLS[2013]26);六盘水市煤系固体废弃物资源化利用创新团队(52020-2012-04-01-02);贵州省教育厅重点科研项目(黔教高发[2011]278);贵州省教育厅特色重点实验室项目([2011]278);贵州省教育厅采矿工程重点学科项目(黔财教[2013]140);贵州省煤炭绿色开采及矿区生态环境保护科技创新人才团队项目(黔科通[2013]93)

摘　　要：研究了以六盘水煤矸石为主要原料制备聚硫酸铝铁(PAFS),并用以处理高岭土模拟废水。对于800mL高岭土模拟废水,加入0.5mL质量浓度为10g/L的PAFS溶液,静置沉降30min,考察铁铝物质的量比、聚合温度、聚合时间、熟化时间对PAFS去浊能力的影响。结果表明:在pH=0.8、铁铝物质的量比为0.5、聚合温度为80℃、聚合时间为6h、室温下熟化24h条件下,所制备的PAFS对废水浊度去除率在98%以上。Using Liupanshui coal gangue as main raw materials,the polyaluminum-ferricsulfate（PAFS）was prepared,and the PAFS was used to treat kaolin-containing simulation wastewater.Adding 0.5mL PAFS solution（10g/L）in the 800 mL kaolin-containing simulation wastewater,settling for 30 min,the effects of Fe/Al molar ratio,polymerization temperature,polymerization time and aging time on the turbidity-removing ability of PAFS were investigated.The results show that the removal rate of the wastewater turbidity is over 98% when pH is 0.8,Fe/Al molar ratio is 0.5,polymerization temperature and time is 80℃and 6h,aging conditions are room temperature and 24 h.

关 键 词：煤矸石 聚硫酸铝铁(PAFS) 废水 浊度 去除 

分 类 号：O635[理学—高分子化学]