Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China.
J Hazard Mater. 2012 May 30;217-218:366-73. doi: 10.1016/j.jhazmat.2012.03.044. Epub 2012 Mar 28.
This study concentrates on the pretreatment of real wastewater using catalytic wet air oxidation (CWAO). WO(3-) and PO(4)(3-) contained in fosfomycin pharmaceutical wastewater (FPW) and Cu(2+) contained in berberine pharmaceutical wastewater (BPW) were studied as CWAO influent. Mixture of this two streams were reused to form Cu(2+) and P(x)W(m)O(y), namely polyoxometalates (POMs) as co-catalyst system to treat themselves. Experiments were conducted to investigate the effects of the initial oxygen pressure and temperature on the COD (chemical oxygen demand), TOC (total organic carbon) removal and biodegradable enhancement, it was discovered that over 40% of COD and TOC removal can be easily realized in an hour of WAO oxidation at 523 K, 1.4 MPa. The BOD(5)/COD (BOD(5), biochemical oxygen demand in 5 days) of this two pharmaceutical mixture ascended from nonexistent to maximum 0.41 depends on the optimal FPW:BPW volume ratio 4:1, to compose POM co-catalyst system. Organic pollutants were incompletely oxidized to propionic acid and other intermediates. Some properties (e.g., TGA, IR, XRF) of POM catalyst separated from effluent, were obtained to provide additional information.
本研究集中于使用催化湿式空气氧化（CWAO）对实际废水进行预处理。研究了磷霉素制药废水中的 WO(3-)和 PO(4)(3-)以及小檗碱制药废水中的 Cu(2+)作为 CWAO 进水。这两种废水的混合物被重复使用，形成 Cu(2+)和 P(x)W(m)O(y)，即多金属氧酸盐（POMs）作为共催化剂系统来处理自身。实验研究了初始氧压和温度对 COD（化学需氧量）、TOC（总有机碳）去除率和可生物降解性增强的影响，结果发现，在 523 K、1.4 MPa 的 WAO 氧化 1 小时内，很容易实现超过 40%的 COD 和 TOC 去除率。这两种药物混合物的 BOD(5)/COD（BOD(5)，5 天内的生化需氧量）从不存在上升到最大值 0.41，这取决于最佳的 FPW:BPW 体积比 4:1，以组成 POM 共催化剂系统。有机污染物未完全氧化为丙酸和其他中间产物。从废水中分离出的 POM 催化剂的一些性质（如 TGA、IR、XRF）得到了测定，提供了更多信息。
