作　　者： ; ;

机构地区： 福州大学环境与资源学院环境科学与工程系

出　　处： 《化学研究与应用》 2003年第4期475-478,共4页

摘　　要： 以淀粉为原料,通过化学改性研制出同时兼含羟基、氰基、酰胺基和季铵盐基团的两亲型高分子絮凝剂(ASF),然后加入铝酸纳和硅酸钠,以一定的比例进行复配,制得复合型高分子絮凝剂CF 1,并综合研究了CF 1的絮凝性能。结果表明,CF 1对印染、造纸、皮革、制药等工业废水具有很强的絮凝和脱色效果,废水的色度去除率达96%以上,SS去除率达95%以上,CODCr去除率达74%以上。而且其絮凝性能明显优于阳离子聚丙烯酰胺(CPAM)、聚合氯化铝(PAC)、硫酸铝以及硫酸亚铁等絮凝剂。 A novel amphiphilic polymeric folcculant (ASF) containing carboxyl group,nitrile group and quaternary ammonium salt was prepared by chemically modifying starch-a kind of renewable natural resource.Then the compound flocculant,denoted as CF1 was developed by further modification of ASF with sodium aluminate and sodium silicate at a proportional ratio.An investigation regarding the flocculating performance and application fields of CF1 was comperehensively conducted.And,various affecting factors on the flocculation were optimiaed.CF1has been found to show high flocculating and decoloring efficiency in such industry as printing and dyeing,pulp and paper,leathermaking as well as pharmaceuticals in dustry etc.And the removal rates of chroma,SS and CODCr from the above industrial effluents exceeded 96%,95%and74%,respectively when 80mg/L of CF1 was used.Moreover,the flocculating efficiency of CF1prevailed over such flocculants as cationictype polyacrylamide (CPAM),poly (aluminium chloride)(PAC),aluminium sulphate and ferrous sulphate.

关 键 词： 复合絮凝剂 絮凝性能 废水处理 淀粉 改性 絮凝沉降法 工业废水

领　　域： [环境科学与工程]