Catalytic reduction for water treatment  

作　　者：Maocong Hul Yin Liu Zhenhua Yaol Liping Ma Xianqin Wang 

机构地区：[1]Department of Chemical, Biological and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA [2]Primus Green Energy, Hilfsborough, NJ 08844, USA [3]Oil ＆ Gas Technology Research Institute of Changqing Oilfield Company, Xi＇an 710018, China

出　　处：《Frontiers of Environmental Science & Engineering》2018年第1期25-42,共18页环境科学与工程前沿（英文）

摘　　要：Treating water contaminants via heterogeneously catalyzed reduction reaction is a subject of growing interest due to its good activity and superior selectivity compared to conventional technology, yielding products that are non-toxic or substantially less toxic. This article reviews the application of catalytic reduction as a progressive approach to treat different types of contaminants in water, which covers hydrodehalogenation for wastewater treatment and hydrogenation of nitrate/nitrite tbr groundwater remediation. For hydrodehalogenation, an overview of the existing treatment technologies is provided with an assessment of the advantages of catalytic reduction over the conventional methodologies. Catalyst design for feasible catalytic reactions is considered with a critical analysis of the pertinent literature. For hydrogenation, hydrogenation of nitrate/nitrite contaminants in water is mainly focused. Several important nitrate reduction catalysts are discussed relating to their preparation method and catalytic performance. In addition, novel approach of catalytic reduction using in situ synthesized H2 evolved from water splitting reaction is illustrated. Finally, the challenges and perspective tbr the extensive application of catalytic reduction technology in water treatment arc discussed. This review provides key information to our community to apply catalytic reduction approach for water treatment.Treating water contaminants via heterogeneously catalyzed reduction reaction is a subject of growing interest due to its good activity and superior selectivity compared to conventional technology, yielding products that are non-toxic or substantially less toxic. This article reviews the application of catalytic reduction as a progressive approach to treat different types of contaminants in water, which covers hydrodehalogenation for wastewater treatment and hydrogenation of nitrate/nitrite tbr groundwater remediation. For hydrodehalogenation, an overview of the existing treatment technologies is provided with an assessment of the advantages of catalytic reduction over the conventional methodologies. Catalyst design for feasible catalytic reactions is considered with a critical analysis of the pertinent literature. For hydrogenation, hydrogenation of nitrate/nitrite contaminants in water is mainly focused. Several important nitrate reduction catalysts are discussed relating to their preparation method and catalytic performance. In addition, novel approach of catalytic reduction using in situ synthesized H2 evolved from water splitting reaction is illustrated. Finally, the challenges and perspective tbr the extensive application of catalytic reduction technology in water treatment arc discussed. This review provides key information to our community to apply catalytic reduction approach for water treatment.

关 键 词：Halogenated compoundsNitrate/nitrite contaminantsHydrodechloriantionHydrogenationWastewater treatmentGroundwater remediation 

分 类 号：O643.32[理学—物理化学] TQ226.61[理学—化学]