一种复合脱色剂在印染废水中的应用研究  

Study on the application of dyeing wastewater with a compound decolorant

作　　者：刘剑锋[1] 陈羡琳[1] 刘明华[1,2] 蒋晓丽[1] 

机构地区：[1]福州大学环境与资源学院,福建福州350108 [2]福建省生物质资源化技术开发基地,福建福州350108

出　　处：《化学研究与应用》2010年第3期397-400,共4页Chemical Research and Application

基　　金：福建省高等学校新世纪优秀人才支持计划(003392)

摘　　要：以甲醛、双氰胺、醋酸钠、氯化铵、氯化铝等为原料制备了一种印染废水脱色絮凝剂T-1。采用福州某纺织印染有限公司的印染废水为处理对象,以脱色率为主要考核指标,讨论了T-1的投加量、pH值、废水温度等对絮凝效果的影响。实验结果表明,双氰胺-甲醛缩聚物对印染废水具有优良的脱色絮凝效果,当投加量为100mg/L,废水温度为30℃,pH=8时,处理效果最佳,色度去除率达70%,COD去除率为78.3%。而且其絮凝性能明显优于聚合氯化铝(PAC)、聚合硫酸铝(PAS)絮凝剂。A novel decoloring flocculant, denoted as T-1 was prepared by adopting the raw materials of dicyandiamide, formaldehyde, sodium acetate, ammonium chloride and aluminium chloride etc. And, the effect factors, i. e. , dosage of the flocculant, solution pH and temperature etc. were optimized. It can be concluded that the removal percentages of CODcr and colourity of the effluent could reach 78.3% and 70% respectively under such optimal conditions as 8 of the effluent pH value,30℃ of the effluent temperature and 100 mg？ L^-1 of the flocculant dosage etc. Moreover,the flocculating efficiency of T-1 prevailed over such flocculants as poly. （ aluminium chloride） （PAC） ,poly（aluminium sulphate） （PAS）.

关 键 词：双氰胺甲醛缩聚物 阳离子絮凝剂 印染废水 脱色 应用 

分 类 号：O633.5[理学—高分子化学]