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《Research of Environmental Sciences》 2004-02
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Study on Influence Factors of Wet Air Oxidation of Highly Concentrated Emulsification Wastewater

ZENG Xin-ping~1, TANG Wen-wei~2, ZHAO Jian-fu~3, GU Guo-wei~3, NI Ya-ming~2 (1.School of Life Science and Technology,Tongji University,Shanghai200092; 2.Department of Chemistry,Tongji University, ource Reuse,Tongji University,Shanghai200092,China)  
A systematic study on wet air oxidation (WAO) of highly concentrated emulsification wastewater was performed in a 2 L high-pressure batch autoclave,with emphasis on the removal effect of COD_(Cr),TOC and influence factors.The experimental results indicated that the temperature was the key factor and the best feasible temperature was 220 ℃,and that 86.4% of COD_(Cr) and 79.5% of TOC (initial COD_(Cr) 48 000 mg/L) in the wastewater were removed in 2 h.Oxidation was restricted without enough oxygen,it was fitting when the supply of oxygen was (1.0~1.25) p(O_2)~*.WAO had a good performance in the treatment of emulsified wastewater in a wider range.The pH of input water had little influence on the oxidaton efficiency.
【Fund】: 高等学校博士学科点专项科研基金资助项目(20010247004)
【CateGory Index】: X7031;X76
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