Pulping and Papermaking Wastewater Treatment by Using IC-modified Oxidation Ditch Process

Pulping and papering wastewater was treated by using IC anaerobic reactor-modified oxidation ditch-shallow air-floatation system,the main construction and commissioning method of the whole system were introduced and analyzed.When the influent CODCr was 4000 mg/L,BOD5 1350 mg/L,SS 2000 mg/L,the effluent CODCr≤60 mg/L,BOD5≤20 mg/L,SS≤30 mg/L,which are meet the emission limits of "the paper industry water pollution discharge standard"(GB3544—2008).