Performance of combined process of anoxic baffled reactor-biological contact oxidation treating printing and dyeing wastewater.
A study of the treatment of printing and dyeing wastewater was carried out using the combined process of anoxic baffled reactor-biological contact oxidation. The results showed the pH ascended continuously and the oxidation-reduction potential dropped gradually from compartment 1-6 in ABR. When hydraulic retention time was 12h, color removal efficiency was 92% and the color of effluent of ABR could satisfy the professional emission standard (grade-1) of textile and dyeing industry of China. The total COD removal efficiency of the combined process was 86.6% and the COD of effluent could satisfy the professional emission standard (grade-2) of textile and dyeing industry of China.
Wu
Huifang
H
Department of Municipal Engineering, Southeast University, Nanjing 210096, PR China. h.f.wu@163.com <h.f.wu@163.com>
Wang
Shihe
S
Kong
Huoliang
H
Liu
Tiantian
T
Xia
Mingfang
M
D001421:Bacteria, Anaerobic / Q000378:metabolism*; D002681:China; D004396:Coloring Agents / Q000378:metabolism*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
D004396:Coloring Agents; D014874:Water Pollutants, Chemical; D010100:Oxygen