聚合氯化铁的改性及其在印染废水中的应用  

Modification of polyferric chloride and its application in dyeing wastewater

作　　者：鲁秀国[1] 黄林长 过依婷 张耀 Lu Xiuguo;Huang Linzhang;Guo Yiting;Zhang Yao(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013)

机构地区：[1]华东交通大学土木建筑学院,南昌330013

出　　处：《化工新型材料》2018年第7期280-282,共3页New Chemical Materials

基　　金：国家自然科学基金项目(51168013);国家自然科学基金资助(51768018);国家科技支撑计划项目(2014BAC04B03)

摘　　要：以废弃的酸洗废液为原料制备出聚合氯化铁(PFC),壳聚糖(CTS)改性PFC得到复合型絮凝剂CTSPFC,将其用于印染废水的处理。结果表明:投加量相同的情况下,CTS-PFC的絮凝效果要好于PFC,而且受废水pH的影响更小;当m(CTS)∶m(PFC)=1∶2(质量比),投加量为1.2g/L,沉降时间为15min,CTS-PFC对印染废水色度和化学需氧量(COD)的去除率达到了93.7%和72.3%。PFC was prepared from waste acid pickling waste as raw material,and modified with CTS to obtain compound flocculant（CTS-PFC）.The obtained CTS-PFC was used for the treatment of printing and dyeing wastewater.The results showed that the flocculation effect of CTS-PFC was better than that of PFC under the same dosage,and the flocculation effect was less affected by wastewater pH value.When the mass ratio of CTS and PFC was1∶2,the dosage of 1.2 g/L and the settling time was 15 min,the removal rate of chroma and COD of dyeing wastewater was up to 93.7% and 72.3% respectively.

关 键 词：印染废水 聚合氯化铁 壳聚糖 复合型絮凝剂 

分 类 号：X791[环境科学与工程—环境工程]