School of Civil Engineering, Architecture and Urbanism, University of Campinas, Av. Albert Einstein, 951, PO Box 6021, 13083-852 Campinas, SP, Brazil.
J Environ Manage. 2012 Sep 30;107:96-101. doi: 10.1016/j.jenvman.2012.04.024. Epub 2012 May 16.
The degradation of formaldehyde in an aqueous solution (400 mg L(-1)) was studied using photolysis, peroxidation and advanced oxidation processes (UV/H(2)O(2), Fenton and photo-Fenton). Photolysis was the only process tested that did not reduce formaldehyde concentration; however, only advanced oxidation processes (AOPs) significantly decreased dissolved organic carbon (DOC). UV/H(2)O(2) and photo-Fenton AOPs were used to degrade formaldehyde at the highest concentrations (1200-12,000 mg L(-1)); the processes were able to reduce CH(2)O by 98% and DOC by 65%. Peroxidation with ultraviolet light (UV/H(2)O(2)) improved the efficiency of treatment of effluent from an anatomy laboratory. The effluent's CH(2)O content was reduced by 91%, DOC by 48%, COD by 46% and BOD by 53% in 420 min of testing.
研究了在水溶液(400mg/L)中通过光解、过氧化物和高级氧化工艺(UV/H2O2、芬顿和光芬顿)来降解甲醛。在测试的过程中,只有光解没有降低甲醛的浓度;然而,只有高级氧化工艺(AOPs)才能显著降低溶解有机碳(DOC)。UV/H2O2和光芬顿 AOPs 用于在最高浓度(1200-12000mg/L)下降解甲醛;这些过程能够将 CH2O 降低 98%,DOC 降低 65%。用紫外线进行的过氧化物(UV/H2O2)处理提高了解剖实验室废水处理的效率。在 420 分钟的测试中,该废水的 CH2O 含量降低了 91%,DOC 降低了 48%,COD 降低了 46%,BOD 降低了 53%。