Photocatalytic degradation of recalcitrant organic pollutants in water using a novel cylindrical multi-column photoreactor packed with TiO2-coated silica gel beads

被引：94

作者：

Li, Dawei ^{[1
]}

Zhu, Qi ^{[1
]}

Han, Chengjie ^{[1
]}

Yang, Yingnan ^{[1
]}

Jiang, Weizhong ^{[2
]}

Zhang, Zhenya ^{[1
]}

机构：

[1] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan

[2] China Agr Univ, Minist Agr, Key Lab Agr Engn Struct & Environm, Beijing 100083, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2015年 / 285卷

基金：

日本学术振兴会;

关键词：

Photocatalytic degradation; Recalcitrant organic pollutants; Cylindrical multi-column photoreactor; TiO2-coated silica gel; Water purification; CONTINUOUS-FLOW PHOTOREACTOR; AZO-DYE; METHYL-ORANGE; RHODAMINE-B; ORGANOCHLORINE PESTICIDES; TIO2; PHOTOCATALYSIS; TITANIUM-DIOXIDE; IMMOBILIZED TIO2; REACTOR; DECOLORIZATION;

D O I：

10.1016/j.jhazmat.2014.12.024

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A novel cylindrical multi-column photocatalytic reactor (CMCPR) has been developed and successfully applied for the degradation of methyl orange (MO), amoxicillin (AMX) and 3-chlorophenol (3-CP) in water. Due to its higher adsorption capacity and simpler molecular structure, 3-CP compared with MO and AMX obtained the highest photodegradation (100%) and mineralization (78.1%) after 300-min photocatalytic reaction. Electrical energy consumption for photocatalytic degradation of MO, AMX and 3-CP using CMCPR was 5.79 x 10(4), 7.31 x 10(4) and 2.52 X 10(4) kWh m(-3) order(-1), respectively, which were less than one-thousand of those by reported photoreactors. The higher flow rate (15 mL min(-1)), lower initial concentration (5 mg L-1) and acidic condition (pH 3) were more favorable for the photocatalytic degradation of MO using CMCPR. Five repetitive operations of CMCPR achieved more than 97.0% photodegradation of MO in each cycle and gave a relative standard deviation of 0.72%. In comparison with reported slurry and thin-film photoreactors, CMCPR exhibited higher photocatalytic efficiency, lower energy consumption and better repetitive operation performance for the degradation of MO, AMX and 3-CP in water. The results demonstrated the feasibility of utilizing CMCPR for the degradation of recalcitrant organic pollutants in water. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：398 / 408

页数：11

共 60 条

[1] Adsorption and photocatalytic degradation of human serum albumin on TiO2 and Ag-TiO2 films [J].

Ahmed, Mukhtar H. ;

Keyes, Tia E. ;

Byrne, John. A. ;

Blackledge, Charles W. ;

Hamilton, Jeremy W. .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2011, 222 (01) :123-131

[2] Comparative study of toxicity of azo dye Procion Red MX-5B following biosorption and biodegradation treatments with the fungi Aspergillus niger and Aspergillus terreus [J].

Almeida, E. J. R. ;

Corso, C. R. .

CHEMOSPHERE, 2014, 112 :317-322

[3] Mutagenic and carcinogenic potential of a textile azo dye processing plant effluent that impacts a drinking water source [J].

Alves de Lima, Rodrigo Otavio ;

Bazo, Ana Paula ;

Favero Salvadori, Daisy Maria ;

Rech, Celia Maria ;

Oliveira, Danielle de Palma ;

Umbuzeiro, Gisela de Aragao .

MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS, 2007, 626 (1-2) :53-60

[4] Synergetic effect between photocatalytic degradation and adsorption processes on the removal of phenolic compounds from olive mill wastewater [J].

Baransi, Katie ;

Dubowski, Yael ;

Sabbah, Isam .

WATER RESEARCH, 2012, 46 (03) :789-798

[5] Photocatalytic degradation of an azo dye in a tubular continuous-flow photoreactor with immobilized TiO2 on glass plates [J].

Behnajady, M. A. ;

Modirshahla, N. ;

Daneshvar, N. ;

Rabbani, M. .

CHEMICAL ENGINEERING JOURNAL, 2007, 127 (1-3) :167-176

[6] Figures-of-merit for the technical development and application of advanced oxidation technologies for both electric- and solar-driven systems - (IUPAC Technical Report) [J].

Bolton, JR ;

Bircher, KG ;

Tumas, W ;

Tolman, CA .

PURE AND APPLIED CHEMISTRY, 2001, 73 (04) :627-637

[7] Photocatalytic activity of spinel ZnFe2-xCrxO4 nanoparticles on removal Orange I azo dye from aqueous solution [J].

Borhan, A. I. ;

Samoila, P. ;

Hulea, Vasile ;

Iordan, A. R. ;

Palamaru, M. N. .

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2014, 45 (04) :1655-1660

[8] Enhanced photocatalytic activity of multi-doped TiO2 for the degradation of methyl orange [J].

Charanpahari, A. ;

Umare, S. S. ;

Gokhale, S. P. ;

Sudarsan, V. ;

Sreedhar, B. ;

Sasikala, R. .

APPLIED CATALYSIS A-GENERAL, 2012, 443 :96-102

[9] Photodegradation of dye pollutants on silica gel supported TiO2 particles under visible light irradiation [J].

Chen, YX ;

Wang, K ;

Lou, LP .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 163 (1-2) :281-287

[10] Experimental comparison of three reactor designs for photocatalytic water purification [J].

Dijkstra, MFJ ;

Buwalda, H ;

de Jong, AWF ;

Michorius, A ;

Winkelman, JGM ;

Beenackers, AACM .

CHEMICAL ENGINEERING SCIENCE, 2001, 56 (02) :547-555

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