聚硅酸聚合氯化铁复合型絮凝剂的制备及性能研究
收稿日期: 2003-03-12
网络出版日期: 2010-10-01
基金资助
天津市地方院校参与南开大学、天津大学科技合作项目,编号:GJDF04;制浆造纸工程国家重点实验室基金项目,编号:0215
Studies on the preparation and preperties of polysilicic acid-polyferric chloride flocculant
Received date: 2003-03-12
Online published: 2010-10-01
以盐酸酸洗废液和废铁屑为原料,制备了聚硅酸聚合氯化铁复合型絮凝剂(PSPFC),研究了聚铁中铁浓度、聚合硅酸浓度、聚合硅酸pH值、n(Fe)∶n(Si)及复合熟化时间等因素对絮凝性能的影响。正交试验结果表明,当制备条件为:Fe/Si物质的量比为1∶2,聚铁中铁浓度为0.6mol/L,复合熟化时间为40min时,研制的PSPFC对低浊污水(浊度10~20NTU)具有最佳处理效果,并具有较宽的pH适用范围。
关键词: 盐酸酸洗废液; 聚硅酸聚合氯化铁复合型絮凝剂; 低浊污水
贾青竹, 衣守志 . 聚硅酸聚合氯化铁复合型絮凝剂的制备及性能研究[J]. 工业水处理, 2004 , 24(1) : 38 -40,49 . DOI: 10.11894/1005-829x.2004.24(1).38
By using the hydrochloric acid pickling wastewater and scrap iron asraw materials,the polysilicic acid-polyferric chloride (PSPFC)flocculant isprepared under different conditions.By investigating the removing rate of turbidity,the resultsshow that the flocculation efficiency isinfluenced by the Fe/Si molar rate,the solute concentra-tion of Fe3+,and especially influenced by the reaction time.The optional technological conditionsare asfollows:the Fe/Si molar rate is1 ∶2,the solute concentration of Fe 3+ is0.6mol/L and the reaction time is40min.The advantage of the PSPFC isthat it isgood for treating the light turbidity wastewater with a wide pH range
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