[Study on Fenton oxidation cooperated with coagulation of biologically treated coking wastewater].
The method of Fenton oxidation cooperated with coagulation for biologically treated coking wastewater was conducted. Based on both of the removal performance and the operating costs, optimal reaction condition was proposed. Operating at H2O2 concentration 220 mg/L, Fe2+ concentration 180 mg/L, PAM concentration 4.5 mg/L, reaction time 0.5h and pH = 7, about 44.5% of COD was removed and chroma reached 35. In addition, through analyzing of the changes of molecular weight distribution and constitute of organic compounds in effluent, the pollutant transformation rule was put forward. The result shows that the effluent treated by Fenton oxidation cooperated with coagulation can reach the wastewater secondary discharge standard, and the operation costs are acceptable. This implies that the technique of Fenton oxidation cooperated with coagulation has promising in practice.
Zuo
Chen-Yan
CY
State Key Joint Laboratory of Environment Simulation and Pollution Control, Department of Environmental Science and Engineering Tsinghua University, Beijing 100084, China. zuochenyan98@mails.tsinghus.edu.cn
He
Miao
M
Zhang
Peng-Yi
PY
Huang
Xia
X
Zhao
Wen-Tao
WT
D003077:Coke / Q000032:analysis; D052918:Environmental Restoration and Remediation / Q000379:methods; D006861:Hydrogen Peroxide / Q000737:chemistry; D007220:Industrial Waste / Q000032:analysis*; D007501:Iron / Q000737:chemistry; D010084:Oxidation-Reduction; D012037:Refuse Disposal; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
D003077:Coke; C045076:Fenton's reagent; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide; D007501:Iron