主要介绍采用凝集沉淀处理法, 选用A l2 (SO 4) 3·18H2O 作为无机絮凝剂和聚丙烯酰胺作为高分子絮凝剂, 对客车构件涂装前处理废水和喷漆室漆雾处理废水进行联合治理。关键词: 涂装废水　处理　絮凝　沉淀Abstract: Th is is a majo r int roduct ion on adop t ing the dispo salmethod of agglut inat ion and p recip itat ion to synthet2 ically harness the w aste w ater com ing from the p re2t reatment fo r the bus components coat ing and the handling of sp raying lacquer in room by select ing A l2 (SO 4 ) 3 ·18H2O as ino rganic flocculant and po lyacrylam ide as macro2mo lecular one.Key words: Coat ing w ast w ater, D ispo sal, F locculat ion, P recip itat ion