Treatment of 3,4,5-trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater by the coupled Fenton pretreatment and UASB reactor with emphasis on optimization and chemicals analysis

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	Treatment of 3,4,5-trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater by the coupled Fenton pretreatment and UASB reactor with emphasis on optimization and chemicals analysis
	Li, Wei Cheng; Chen, Hong; Jin, Yong; Zhang, Hong; Niu, Qigui; Qi, Weikang; Zhang, Yanlong; Li, Yu-You; Gao, Yingxin
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2015-03-04
卷号	142 页码:40-47
关键词	3 Fenton Convex optimization method GC-MS FT-IR UASB 4 5-Trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater
英文摘要	An integrated Fenton-UASB was investigated for the treatment of 3,4,5-trimethoxybenzaldehyde (TMBA) and Di-bromo-aldehyde manufacturing wastewater. A quadratic model for describing the individual and interactive effects of three variables independent variables (pH, concentration of H2O2 and H2O2/Fe2+) affecting COD abatement in Fenton pretreatment was successfully developed by the response surface methodology. The model proposed was further interfaced with the convex optimization method to optimize the variables in that convex optimization method can guarantee global optimization. A substantial increase in the BOD5/COD ratio of the Fenton treated wastewater was observed, allowing sequent biological treatment feasible. The UASB reactor receiving treated effluent was operated continuously with an organic loading rate (OLR) from initial 3.0 g to 24.0 g COD/L/d with a stepwise reduction in hydraulic retention time (HRT) for 160 days. The degradation of organics in Fenton pretreatment and the anaerobic process was further revealed through GC-MS and FT-IR, respectively. The experimental results highlighted that the potential of integrated Fenton-UASB, providing 80.4% COD removal efficiency accompanied with 96.8% and 100% of TMBA and Di-bromo-aldehyde removal efficiency, respectively even when the applied OLR was up to 16.0 g COD/L/d. (C) 2014 Elsevier B.V. All rights reserved.
研究领域[WOS]	Engineering, Chemical
WOS记录号	WOS:000350076600007
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32865]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Li, Wei Cheng,Chen, Hong,Jin, Yong,et al. Treatment of 3,4,5-trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater by the coupled Fenton pretreatment and UASB reactor with emphasis on optimization and chemicals analysis[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2015,142:40-47.
APA	Li, Wei Cheng.,Chen, Hong.,Jin, Yong.,Zhang, Hong.,Niu, Qigui.,...&Gao, Yingxin.(2015).Treatment of 3,4,5-trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater by the coupled Fenton pretreatment and UASB reactor with emphasis on optimization and chemicals analysis.SEPARATION AND PURIFICATION TECHNOLOGY,142,40-47.
MLA	Li, Wei Cheng,et al."Treatment of 3,4,5-trimethoxybenzaldehyde and Di-bromo-aldehyde manufacturing wastewater by the coupled Fenton pretreatment and UASB reactor with emphasis on optimization and chemicals analysis".SEPARATION AND PURIFICATION TECHNOLOGY 142(2015):40-47.