National Engineering Laboratory for Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, Beijing 102206, China.
J Hazard Mater. 2010 Jun 15;178(1-3):786-91. doi: 10.1016/j.jhazmat.2010.02.009. Epub 2010 Feb 6.
Epoxy acrylate monomer industrial wastewater contained highly concentrated and toxic organic compounds. The wet air oxidation (WAO) and catalytic wet air oxidation (CWAO) were used to eliminate pollutants in order to examine the feasibility of the WAO/CWAO as a pre-treatment method for the industrial wastewater. The results showed that in the WAO 63% chemical oxygen demand (COD) and 41% total organic carbon (TOC) removals were achieved and biological oxygen demand (BOD(5))/COD ratio increased from 0.13 to 0.72 after 3h reaction at 250 degrees C, 3.5MPa and the initial concentration of 100g(COD)/L. Among homogenous catalysts (Cu(2+), Fe(2+), Fe(3+) and Mn(2+) salts), Cu(2+) salt exhibited better performance. CuO catalyst was used in the CWAO of the wastewater, COD and TOC conversion were 77 and 54%, and good biodegradability was achieved. The results proved that the CWAO was an effective pre-treatment method for the epoxy acrylate monomer industrial wastewater.
含高浓度有毒有机化合物的环氧丙烯酸酯单体工业废水。采用湿式空气氧化（WAO）和催化湿式空气氧化（CWAO）来去除污染物，以考察 WAO/CWAO 作为工业废水预处理方法的可行性。结果表明，在 WAO 中，在 250°C、3.5MPa 和初始浓度为 100g(COD)/L 的条件下反应 3h 后，可达到 63%的化学需氧量（COD）去除率和 41%的总有机碳（TOC）去除率，生物需氧量（BOD(5)）/COD 比值从 0.13 增加到 0.72。在均相催化剂（Cu(2+)、Fe(2+)、Fe(3+)和 Mn(2+)盐）中，Cu(2+)盐表现出更好的性能。在废水的 CWAO 中使用了 CuO 催化剂，COD 和 TOC 的转化率分别为 77%和 54%，并实现了良好的生物降解性。结果证明，CWAO 是一种有效的环氧丙烯酸酯单体工业废水预处理方法。
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