Aye Thandar, Mehrvar Mehrab, Anderson William A
Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2004;39(1):113-26. doi: 10.1081/ese-120027372.
In this study, the biodegradability of an untreated and photocatalytically treated solution containing Cibacron Brilliant Yellow 3G-P was examined. Both untreated and partially treated dyes by photocatalysis were used in the biological treatment process. Respirometric measurements indicated that the untreated dye was not inhibitory to biological treatment at the concentration of 100 mg/L. In addition, no significant biodegradation of both untreated and photocatalytically pre-treated dye occurred by either respirometric or conventional BOD tests using activated sludge. Respirometric measurements also suggested that both untreated and treated dye solutions were not biodegradable even with synthetic sewage. Under aerobic condition, partially treated dye solution showed better color removal rate than that of untreated solution. However, biodegradability of the 100 mg/L untreated dye solution was improved by 50% in terms of Oxygen Uptake Rate (OUR) in respirometry by using acclimated sludge.
在本研究中，对含有汽巴克隆艳黄3G-P的未处理溶液和光催化处理溶液的生物降解性进行了研究。未处理的染料和通过光催化部分处理的染料均用于生物处理过程。呼吸测量表明，在100 mg/L的浓度下，未处理的染料对生物处理没有抑制作用。此外，无论是通过呼吸测量还是使用活性污泥的常规生化需氧量测试，未处理的染料和光催化预处理的染料均未发生明显的生物降解。呼吸测量还表明，即使使用合成污水，未处理和处理后的染料溶液都不可生物降解。在有氧条件下，部分处理的染料溶液比未处理的溶液表现出更好的脱色率。然而，通过使用驯化污泥，在呼吸测量中，就耗氧率（OUR）而言，100 mg/L未处理染料溶液的生物降解性提高了50%。
