制浆造纸废水处理及中水回用工程实例

China Pulp & Paper(2019)

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Abstract
国内某新建造纸企业配套废水处理站设计规模60000 m3/d,废水处理采用预处理+好氧生物处理+混凝沉淀+Fenton氧化处理工艺,出水CODCr≤50 mg/L,SS≤13 mg/L,直接进入后续中水回用单元;中水回用单元采用预处理+超滤反渗透工艺进行处理,反渗透出水CODCr≤10 mg/L,TDS≤180 mg/L,系统中水回收率70%,脱盐率97%.回用水送至厂区原水池,为企业新增用水源1512万m3/a,约占企业总用水量的50%,极大地缓解了企业用水压力.
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