In order to meet the influent requirement of subsequent WWTP,hydrolysis/tower biological filter and coagulation sedimentation process were used to pretreat acrylon yarn dyeing wastewater.

• 为使腈纶纱染色废水达到接管标准的要求,采用水解-塔式生物滤池和混凝沉淀工艺,对腈纶纱染色的废水预处理工程进行设计。