超效浅层离子气浮法在造纸废水深度处理中的应用

Application of High-efficient Shallow Air Flotation Process in Papermaking Wastewater Treatment

关键词:  造纸废水  深度处理  浅层气浮  气浮絮凝  达标排放

Key Words:papermaking wastewater  deep processing  shallow air flotation  flocculation  emission standard

摘要:福建南纸在原有的3万t/d的废水处理设施上增加了超效浅层离子气浮法深度处理设施，该深度处理采用气浮絮凝法，利用浅层气浮处理并加入化学絮凝剂，使二沉池出水的CODCr从原来的300 mg/L以上降至90 mg/L以下，达到了GB3544—2008制浆造纸工业水污染物排放标准的要求。

Abstract:In order to meet the requirement of “pulp and paper industry water pollutant discharge regulation ” GB3544—2008, Nanping Paper constructed advanced treatment device based on the original 30,000 t/d effluent treatment facilities. The CODCr of recovery clarification effluent reduced from more than 300 mg/L to less than 90 mg/L after flocculation and high-efficient shallow air flotation; treatment.