煮练废水boil and refinery waste water

# d) k7 G4 u7 C8 Y# z煮练废水boil and refinery waste water
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煮练在退浆后进行，采用热碱液和表面活性剂去除所含油脂、蜡质、果胶等杂质，致使废水呈碱性并带裼色。其COD、BOD5值较高。