摘要
煤矸石是采煤过程之废料.本文利用煤矸石制备出了聚合氯化铝铁(PAFC):一种新型无机高分子絮凝剂、探讨了Fe^(3+)的稳定性与溶液离子强度之间的关系.发现溶液的离子强度越大.则产生Fe(OH)_3沉淀时pH越高.研究了PAFC水解产物的(?)电位及絮凝效果随pH的变化情况.比较了PAFC、PAC和PFS的除浊性能,PAFC在pH为7.0—8.2范围内除浊效果最佳,PAFC的除浊效果优于PAC.
Polyaluminium ferric chloride (PAPC) , a new type of irtorganic flocculant, is prepared by using gangue, a kind of waste from coal-mine, and hydrochloric acid as raw materials. The relation between the stability of ferric ion and the ionic strength of solution is investigated. It is found that the higher the ionic strength, the higher the pH value when precipitate Fe(OH)3 is formed. The ?potential of hydrolyzate and flocculating effect of PAFC under different pH value are discussed. PAFC gives the best turbidity removal effect in the range of pH7. 0 - 8. 2. Compared with PAC, PAFC gives better turbidity removal effect.
出处
《环境化学》
CAS
CSCD
北大核心
1994年第5期415-420,共6页
Environmental Chemistry
关键词
煤矸石
聚合氯化铝铁
絮凝剂
除浊性能
gangue, polyaluminium ferric chloride, stability of ferric ion, aqueous suspension of kaolin, property of turbidity removal.
