201
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Baêta BEL, Luna HJ, Sanson AL, Silva SQ, Aquino SF. Degradation of a model azo dye in submerged anaerobic membrane bioreactor (SAMBR) operated with powdered activated carbon (PAC). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 128:462-470. [PMID: 23810998 DOI: 10.1016/j.jenvman.2013.05.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 02/26/2013] [Accepted: 05/17/2013] [Indexed: 06/02/2023]
Abstract
This work investigated the anaerobic degradation of the model azo dye Remazol Yellow Gold RNL in an upflow anaerobic sludge blanket reactor (UASB) and two submerged anaerobic membrane (SAMBR) bioreactors, one of which (SAMBR-1) was operated with powdered activated carbon (PAC) in its interior. The reactors were operated at 35 °C with a hydraulic retention time of 24 h in three operational phases, aimed to assess the effect of external sources of carbon (glucose) or redox mediator (yeast extract) on the removal or color and organic matter. The results showed that removal efficiencies of COD (73-94%) and color (90-94%) were higher for SAMBR-1 when compared to SAMBR-2 (operated without PAC) and UASB reactors. In addition, the presence of PAC in SAMBR-1 increased reactor stability, thereby leading to a lower accumulation of volatile fatty acids (VFA). The microfiltration membrane was responsible for an additional removal of ~50% of soluble residual COD in the form of VFA, thus improving permeate quality. On its turn, PAC exhibited the ability to adsorb byproducts (aromatic amines) of azo dye degradation as well as to act as source of immobilized redox mediator (quinone groups on its surface), thereby enhancing color removal.
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Affiliation(s)
- B E L Baêta
- Post-Graduate Programme in Environmental Engineering, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil.
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202
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Gao H, Kan T, Zhao S, Qian Y, Cheng X, Wu W, Wang X, Zheng L. Removal of anionic azo dyes from aqueous solution by functional ionic liquid cross-linked polymer. JOURNAL OF HAZARDOUS MATERIALS 2013; 261:83-90. [PMID: 23912074 DOI: 10.1016/j.jhazmat.2013.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 06/02/2023]
Abstract
A novel functional ionic liquid based cross-linked polymer (PDVB-IL) was synthesized from 1-aminoethyl-3-vinylimidazolium chloride and divinylbenzene for use as an adsorbent. The physicochemical properties of PDVB-IL were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis. The adsorptive capacity was investigated using anionic azo dyes of orange II, sunset yellow FCF, and amaranth as adsorbates. The maximum adsorption capacity could reach 925.09, 734.62, and 547.17 mg/g for orange II, sunset yellow FCF and amaranth at 25°C, respectively, which are much better than most of the other adsorbents reported earlier. The effect of pH value was investigated in the range of 1-8. The result shows that a low pH value is found to favor the adsorption of those anionic azo dyes. The adsorption kinetics and isotherms are well fitted by a pseudo second-order model and Langmuir model, respectively. The adsorption process is found to be dominated by physisorption. The introduction of functional ionic liquid moieties into cross-linked poly(divinylbenzene) polymer constitutes a new and efficient kind of adsorbent.
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Affiliation(s)
- Hejun Gao
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, China
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203
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Ozdemir S, Cirik K, Akman D, Sahinkaya E, Cinar O. Treatment of azo dye-containing synthetic textile dye effluent using sulfidogenic anaerobic baffled reactor. BIORESOURCE TECHNOLOGY 2013; 146:135-143. [PMID: 23933020 DOI: 10.1016/j.biortech.2013.07.066] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/12/2013] [Accepted: 07/16/2013] [Indexed: 06/02/2023]
Abstract
This study aims at investigating azo dye reduction performance of a sulfidogenic anaerobic baffled reactor (ABR) for around 400 days. ABR was operated at 30 °C in a temperature-controlled room and hydraulic retention time (HRT) was kept constant at 2 days. The robustness of ABR was assessed under varying azo dye loadings and COD/sulfate ratios. Additionally, oxygen was supplied (1-2 L air/m(3)reactor min) to the last compartment to investigate the removal of azo dye breakdown products. ABR performed well in terms of COD, sulfate and azo dye removals throughout the reactor operation. Maximum azo dye, COD and sulfate removals were 98%, 98% and 93%, respectively, at COD/sulfate ratio of 0.8. Aeration created different redox conditions in last compartment, which enhanced the removal of COD and breakdown products. The adverse effects of aeration on azo dye reduction were eliminated thanks to the compartmentalized structure of the ABR.
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Affiliation(s)
- Sebnem Ozdemir
- Kahramanmaras Sutcu Imam University, Department of Bioengineering and Science, Kahramanmaras 46100, Turkey
| | - Kevser Cirik
- Kahramanmaras Sutcu Imam University, Department of Environmental Engineering, Kahramanmaras 46100, Turkey.
| | - Dilek Akman
- Kahramanmaras Sutcu Imam University, Department of Bioengineering and Science, Kahramanmaras 46100, Turkey
| | - Erkan Sahinkaya
- Istanbul Medeniyet University, Department of Bioengineering, Goztepe, Istanbul, Turkey
| | - Ozer Cinar
- Kahramanmaras Sutcu Imam University, Department of Environmental Engineering, Kahramanmaras 46100, Turkey; International University of Sarajevo, Bioengineering and Genetics Program, Hrasnicka Cesta 15, 71210 Sarajevo, Bosnia and Herzegovina
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204
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Li X, Zhang J, Jiang Y, Hu M, Li S, Zhai Q. Highly Efficient Biodecolorization/Degradation of Congo Red and Alizarin Yellow R by Chloroperoxidase from Caldariomyces fumago: Catalytic Mechanism and Degradation Pathway. Ind Eng Chem Res 2013. [DOI: 10.1021/ie4007563] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xuelian Li
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Juan Zhang
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Yucheng Jiang
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Mancheng Hu
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Shuni Li
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Quanguo Zhai
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi’an 710062, P. R. China
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205
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Martínez CM, Celis LB, Cervantes FJ. Immobilized humic substances as redox mediator for the simultaneous removal of phenol and Reactive Red 2 in a UASB reactor. Appl Microbiol Biotechnol 2013; 97:9897-905. [DOI: 10.1007/s00253-013-5190-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/07/2013] [Accepted: 08/11/2013] [Indexed: 11/27/2022]
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206
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Al-Amrani WA, Lim PE, Seng CE, Wan Ngah WS. Effects of co-substrate and biomass acclimation concentration on the bioregeneration of azo dye-loaded mono-amine modified silica. BIORESOURCE TECHNOLOGY 2013; 143:584-591. [PMID: 23835263 DOI: 10.1016/j.biortech.2013.06.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 06/02/2023]
Abstract
Bioregeneration of mono-amine modified silica gel (MAMS) adsorbent loaded with Acid Orange 7 (AO7), Acid Yellow 9 (AY9) and Acid Red 14 (AR14), respectively, was investigated under two different operational conditions, namely absence/presence of sucrose/bacto-peptone as the co-substrate and different biomass acclimation concentrations. The results revealed that the AY9- and AR14-loaded MAMS adsorbents could almost be completely bioregenerated but only in the presence of co-substrate whereas the bioregeneration of AO7-loaded MAMS could achieve up to 71% in the absence of the co-substrate. These differences could be related to the structural properties of the investigated azo dyes. In addition, the results showed that the bioregeneration duration of AO7-loaded MAMS could be progressively shortened by using biomass acclimated to increasingly higher AO7 concentration. However, the bioregeneration efficiencies were found to be relatively unchanged under different biomass acclimation concentrations.
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Affiliation(s)
- Waheeba A Al-Amrani
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.
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207
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Tan L, Ning S, Wang Y, Cao X. Aerobic decolorization of Acid Brilliant Scarlet GR by microbial community and the community dynamics during sequencing batch processes. World J Microbiol Biotechnol 2013; 29:1763-71. [DOI: 10.1007/s11274-012-1249-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 12/27/2012] [Indexed: 10/26/2022]
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208
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Lee SS, Bai H, Liu Z, Sun DD. Novel-structured electrospun TiO2/CuO composite nanofibers for high efficient photocatalytic cogeneration of clean water and energy from dye wastewater. WATER RESEARCH 2013; 47:4059-4073. [PMID: 23541306 DOI: 10.1016/j.watres.2012.12.044] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 11/30/2012] [Accepted: 12/18/2012] [Indexed: 06/02/2023]
Abstract
It is still a challenge to photocatalytically cogenerate clean water and energy from dye wastewater owing to the relatively low photocatalytic efficiency of photocatalysts. In this study, novel-structured TiO2/CuO composite nanofibers were successfully fabricated via facile electrospinning. For the first time, the TiO2/CuO composite nanofibers demonstrated multifunctional ability for concurrent photocatalytic organic degradation and H2 generation from dye wastewater. The enhanced photocatalytic activity of TiO2/CuO composite nanofibers was ascribed to its excellent synergy of physicochemical properties: 1) mesoporosity and large specific surface area for efficient substrate adsorption, mass transfer and light harvesting; 2) red-shift of the absorbance spectra for enhanced light utilization; 3) long nanofibrous structure for efficient charge transfer and ease of recovery, 4) TiO2/CuO heterojunctions which enhance the separation of electrons and holes and 5) presence of CuO which serve as co-catalyst for the H2 production. The TiO2/CuO composite nanofibers also exhibited rapid settleability by gravity and uncompromised reusability. Thus, the as-synthesized TiO2/CuO composite nanofibers represent a promising candidate for highly efficient concurrent photocatalytic organic degradation and clean energy production from dye wastewater.
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Affiliation(s)
- Siew Siang Lee
- School of Civil & Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
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209
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Xi Z, Guo J, Lian J, Li H, Zhao L, Liu X, Zhang C, Yang J. Study the catalyzing mechanism of dissolved redox mediators on bio-denitrification by metabolic inhibitors. BIORESOURCE TECHNOLOGY 2013; 140:22-27. [PMID: 23669099 DOI: 10.1016/j.biortech.2013.04.065] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 06/02/2023]
Abstract
The effect of dissolved redox mediators on denitrification by Paracoccus versutus sp. GW1 were studied with α-AQS, AQS, 1,5-AQDS, AQDS and 2,7-AQDS. AQDS presented the best catalytic effect which increased denitrification rate by 1.5-fold with 0.17 mmol L(-1). Denitrification rate was found to be pseudo-zero order with 0-0.32 mmol L(-1) AQDS (k=19.874C AQDS+10.301 (R(2)=0.9984)). The accelerating mechanism for respiratory chain was also explored by using metabolic inhibitors. Addition of AQDS eased the inhibitions of rotenone, dicumarol, sodium azide on respiratory chain, and enhanced the nitrite accumulation during bio-denitrification process. AQDS exhibited slight catalytic effect on nitrite denitrification. These results allowed us to deduce the accelerating site of AQDS on the denitrification respiratory chain. Increased nitrate denitrification by AQDS might mainly attribute to the accelerated electrons transfer from NADH to nitrate reductase via complex I and ubiquinone/ubiqunol. This study provided further understanding of the mechanism of redox mediators on denitrification.
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Affiliation(s)
- Zhenhua Xi
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang City 050018, PR China
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210
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Lim CK, Bay HH, Aris A, Abdul Majid Z, Ibrahim Z. Biosorption and biodegradation of Acid Orange 7 by Enterococcus faecalis strain ZL: optimization by response surface methodological approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:5056-5066. [PMID: 23334551 DOI: 10.1007/s11356-013-1476-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 01/07/2013] [Indexed: 06/01/2023]
Abstract
Reactive dyes account for one of the major sources of dye wastes in textile effluent. In this study, decolorization of the monoazo dye, Acid Orange 7 (AO7) by the Enterococcus faecalis strain ZL that isolated from a palm oil mill effluent treatment plant has been investigated. Decolorization efficiency of azo dye is greatly affected by the types of nutrients and the size of inoculum used. In this work, one-factor-at-a-time (method and response surface methodology (RSM) was applied to optimize these operational factors and also to study the combined interaction between them. Analysis of AO7 decolorization was done using Fourier transform infrared (FTIR) spectroscopy, desorption study, UV-Vis spectral analysis, field emission scanning electron microscopy (FESEM), and high performance liquid chromatography (HPLC). The optimum condition via RSM for the color removal of AO7 was found to be as follows: yeast extract, 0.1% w/v, glycerol concentration of 0.1% v/v, and inoculum density of 2.5% v/v at initial dye concentration of 100 mg/L at 37 °C. Decolorization efficiency of 98% was achieved in only 5 h. The kinetic of AO7 decolorization was found to be first order with respect to dye concentration with a k value of 0.87/h. FTIR, desorption study, UV-Vis spectral analysis, FESEM, and HPLC findings indicated that the decolorization of AO7 was mainly due to the biosorption as well as biodegradation of the bacterial cells. In addition, HPLC analyses also showed the formation of sulfanilic acid as a possible degradation product of AO7 under facultative anaerobic condition. This study explored the ability of E. faecalis strain ZL in decolorizing AO7 by biosorption as well as biodegradation process.
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Affiliation(s)
- Chi Kim Lim
- Department of Biosciences and Health Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
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211
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Identification of a potential fungal species by 18S rDNA for ligninases production. World J Microbiol Biotechnol 2013; 29:2437-40. [DOI: 10.1007/s11274-013-1398-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 06/03/2013] [Indexed: 11/26/2022]
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212
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Gupta VK, Kumar R, Nayak A, Saleh TA, Barakat MA. Adsorptive removal of dyes from aqueous solution onto carbon nanotubes: a review. Adv Colloid Interface Sci 2013; 193-194:24-34. [PMID: 23579224 DOI: 10.1016/j.cis.2013.03.003] [Citation(s) in RCA: 537] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/16/2013] [Accepted: 03/16/2013] [Indexed: 12/07/2022]
Abstract
Adsorption is a widely used technique for the separation and removal of pollutants from wastewaters. Carbon nanotubes (CNTs) are emerging as potential adsorbents because of its well defined cylindrical hollow structure, large surface area, high aspect ratios, hydrophobic wall and easily modified surfaces. In this review, dye adsorption capability of CNTs and CNT based composites from aqueous system has been compiled. This article provides the information about the defect, adsorption sites on CNTs and batch adsorption studies under the influence of various operational parameters such as contact time, solution pH, temperatures etc. and deals with mechanisms involved in adsorption of dyes onto CNTs. From the literature reviewed, it is observed that single walled carbon nanotubes (SWCNTs) show higher adsorption capacity than multi walled carbon nanotubes (MWCNTs) and functionalized and CNT composite have better sorption capacity than as grown CNTs. It is evident from the literature that CNT based nanosorbents have shown good potential for the removal of dyes from aqueous solution. However, still more research work should be focused on the development of cost effective, higher efficient and environmental friendly CNT based nanosorbents for their commercial applications.
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Affiliation(s)
- Vinod Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India.
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213
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Kaushik P, Malik A. Comparative performance evaluation of Aspergillus lentulus for dye removal through bioaccumulation and biosorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:2882-2892. [PMID: 22996821 DOI: 10.1007/s11356-012-1190-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 09/06/2012] [Indexed: 06/01/2023]
Abstract
Dyes used in various industries are discharged into the environment and pose major environmental concern. In the present study, fungal isolate Aspergillus lentulus was utilized for the treatment of various dyes, dye mixtures and dye containing effluent in dual modes, bioaccumulation (employing growing biomass) and biosorption (employing pre-cultivated biomass). The effect of dye toxicity on the growth of the fungal isolate was studied through phase contrast and scanning electron microscopy. Dye biosorption was studied using first and second-order kinetic models. Effects of factors influencing adsorption and isotherm studies were also conducted. During bioaccumulation, good removal was obtained for anionic dyes (100 mg/l), viz. Acid Navy Blue, Fast Red A and Orange-HF dye (99.4 %, 98.8 % and 98.7 %, respectively) in 48 h. Cationic dyes (10 mg/l), viz. Rhodamine B and Methylene Blue, had low removal efficiency (80.3 % [48 h] and 92.7 % [144 h], respectively) as compared to anionic dyes. In addition to this, fungal isolate showed toxicity response towards Methylene Blue by producing larger aggregates of fungal pellets. To overcome the limitations of bioaccumulation, dye removal in biosorption mode was studied. In this mode, significant removal was observed for anionic (96.7-94.3 %) and cationic (35.4-90.9 %) dyes in 24 h. The removal of three anionic dyes and Rhodamine B followed first-order kinetic model whereas removal of Methylene Blue followed second-order kinetic model. Overall, fungal isolate could remove more than 90 % dye from different dye mixtures in bioaccumulation mode and more than 70 % dye in biosorption mode. Moreover, significant color removal from handmade paper unit effluent in bioaccumulation mode (86.4 %) as well as in biosorption mode (77.1 %) was obtained within 24 h. This study validates the potential of fungal isolate, A. lentulus, to be used as the primary organism for treating dye containing wastewater.
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Affiliation(s)
- Prachi Kaushik
- Applied Microbiology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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214
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Hu L, Sarker AK, Islam MR, Li X, Lu Z, Serpe MJ. Poly (N
-isopropylacrylamide) microgel-based assemblies. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26702] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Liang Hu
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
| | - Avijeet K. Sarker
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
| | - Molla R. Islam
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
| | - Xue Li
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
| | - Zhenzhen Lu
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
| | - Michael J. Serpe
- Department of Chemistry; University of Alberta; Edmonton AB T6G 2G2 Canada
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215
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Han Q, Dong W, Wang H, Liu T, Sun F, Ying Y, Yan X. Effects of coexisting anions on decolorization of azo dye X-3B by ferrate(VI) and a comparative study between ferrate(VI) and potassium permanganate. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.01.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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216
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Cirik K, Dursun N, Sahinkaya E, Cinar O. Effect of electron donor source on the treatment of Cr(VI)-containing textile wastewater using sulfate-reducing fluidized bed reactors (FBRs). BIORESOURCE TECHNOLOGY 2013; 133:414-420. [PMID: 23454387 DOI: 10.1016/j.biortech.2013.01.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 01/06/2013] [Accepted: 01/11/2013] [Indexed: 06/01/2023]
Abstract
The treatment of Cr(VI) containing textile wastewater was studied in ethanol and glucose-fed sulfate-reducing fluidized bed reactors at 35°C for around 250 days. The synthetic wastewater contained Cr(VI) (5-45 mg L(-1)), azo dye (Remazol Brilliant Violet 5R) (100-200 mg L(-1)), sulfate (2000 mg L(-1)) and ethanol or glucose (2000 mg L(-1) chemical oxygen demand (COD)). The robustness of two FBRs was assessed under varying Cr(VI) and azo dye loadings. Both reactors performed well in terms of COD, sulfate, color and Cr(VI) removals. However, ethanol-fed FBR performed better than glucose-fed one. The COD, sulfate, chromium and color removals at the highest Cr(VI) concentration (45 mg L(-1)) in ethanol-fed FBR were around 75%, 95%, 93%, and 99%, respectively. Further increase in influent Cr(VI) concentration adversely effected reactor performance. The COD, sulfate, chromium and color removals at 45 mg L(-1) Cr(VI) in glucose-fed FBR were around 60%, 50%, 93%, and 76%, respectively.
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Affiliation(s)
- Kevser Cirik
- Kahramanmaras Sutcu Imam University, Department of Environmental Engineering, Kahramanmaras 46100, Turkey.
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217
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da Silva MER, Firmino PIM, dos Santos AB. Reductive decolourisation of sulphonated mono and diazo dyes in one- and two-stage anaerobic systems. Appl Biochem Biotechnol 2013; 170:1-14. [PMID: 23456307 DOI: 10.1007/s12010-013-0159-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 02/18/2013] [Indexed: 10/27/2022]
Abstract
This work assessed the application of one- and two-stage mesophilic anaerobic systems to colour removal of sulphonated mono and diazo dyes with ethanol as electron donor. The dyes Congo Red (CR), Reactive Black 5 (RB5) and Reactive Red 2 (RR2) were selected as model compounds and tested separately in seven different periods. The one-stage system (R(1)) consisted of a single up-flow anaerobic sludge blanket (UASB) reactor, whereas the two-stage system (R(2)) consisted of an acidogenic UASB reactor (R(A)), a settler and a methanogenic UASB reactor (R(M)). For CR and RB5, no remarkable difference was observed between the colour removal performance of both anaerobic systems R(1) and R(2). The experiments with RR2 revealed that R(2) was more efficient on colour removal than R(1), showing efficiencies almost 2-fold (period VI) and 2.5-fold (period VII) higher than those found by R(1). Additionally, R(2) showed a higher stability, giving a good prospect for application to textile wastewaters. Finally, the acidogenic reactor (R(A)) had an important role in the overall decolourisation achieved by R(2) during the experiments with CR and RB5 (>78 %), whereas for RR2, a more recalcitrant dye, R(A) was responsible for up to 38 % of the total colour removal.
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218
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Solanki K, Subramanian S, Basu S. Microbial fuel cells for azo dye treatment with electricity generation: a review. BIORESOURCE TECHNOLOGY 2013; 131:564-571. [PMID: 23403060 DOI: 10.1016/j.biortech.2012.12.063] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2011] [Revised: 12/09/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
A microbial fuel cell (MFC) has great potential for treating wastewater containing azo dyes for decolourization, and simultaneous production of electricity with the help of microorganisms as biocatalysts. The concept of MFC has been already well established for the production of electricity; however, not much work has been published regarding dye decolourization with simultaneous electricity generation using MFCs. This paper reviews the performance limitations, future prospects, and improvements in technology in terms of commercial viability of azo dye decolourization with electricity generation in MFC. The major limitation identified is the high cost of cathode catalyst. Therefore, there is need of developing inexpensive cathode catalysts. Biocathode is one such option. Moreover, enhanced performance can be obtained by photo-assisted electrochemical process like rutile coated cathode.
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Affiliation(s)
- Komal Solanki
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
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219
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Maneesuwannarat D, Maneesuwannarat S, Nilratnisakorn S, Thiravetyan P. Effect of silicon on calcium, proline, growth rate and salt stress of narrow-leaved cattails in synthetic reactive dye wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2013; 15:24-37. [PMID: 23487983 DOI: 10.1080/15226514.2012.670313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Narrow-leaved cattails (Typha angustifolia L.) show higher efficiency in the removal of colour and reduction of pH, TDS, and conductivity from synthetic reactive red dye wastewater (Rw) when silicon is added to the wastewater. The efficiency of the colour removal was increased from 86% within 12 days to 93% within 9 days with the addition of silicon. Furthermore, the TDS was also decreased when adding silicon in the wastewater. In addition, calcium and proline accumulation in the plant leaf increased in response to increasing Rw concentrations in the absence of added silicon. Higher salinity was also observed with increasing Rw concentrations. Plants attempt to balance their water potential by secreting proline as an osmotic adjustment. But both calcium and proline levels decreased when silicon was added to the wastewater. This result implies that the plant uses silicon as primary element for responsibility under salt stress condition by increasing growth of plant. In addition, silicon can be used instead of calcium, resulting in decreased proline and calcium production in the plant.
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Affiliation(s)
- Dussadee Maneesuwannarat
- Division of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
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220
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221
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Hosseini Koupaie E, Alavi Moghaddam MR, Hashemi SH. Evaluation of integrated anaerobic/aerobic fixed-bed sequencing batch biofilm reactor for decolorization and biodegradation of azo dye acid red 18: comparison of using two types of packing media. BIORESOURCE TECHNOLOGY 2013; 127:415-421. [PMID: 23138064 DOI: 10.1016/j.biortech.2012.10.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 09/28/2012] [Accepted: 10/03/2012] [Indexed: 06/01/2023]
Abstract
Two integrated anaerobic/aerobic fixed-bed sequencing batch biofilm reactor (FB-SBBR) were operated to evaluate decolorization and biodegradation of azo dye Acid Red 18 (AR18). Volcanic pumice stones and a type of plastic media made of polyethylene were used as packing media in FB-SBBR1 and FB-SBBR2, respectively. Decolorization of AR18 in both reactors followed first-order kinetic with respect to dye concentration. More than 63.7% and 71.3% of anaerobically formed 1-naphthylamine-4-sulfonate (1N-4S), as one of the main sulfonated aromatic constituents of AR18 was removed during the aerobic reaction phase in FB-SBBR1 and FB-SBBR2, respectively. Based on statistical analysis, performance of FB-SBBR2 in terms of COD removal as well as biodegradation of 1N-4S was significantly higher than that of FB-SBBR1. Spherical and rod shaped bacteria were the dominant species of bacteria in the biofilm grown on the pumice stones surfaces, while, the biofilm grown on surfaces of the polyethylene media had a fluffy structure.
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Affiliation(s)
- E Hosseini Koupaie
- Civil and Environmental Engineering Department, Amirkabir University of Technology, Hafez Ave, Tehran 15875-4413, Iran.
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222
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Cardenas-Robles A, Martinez E, Rendon-Alcantar I, Frontana C, Gonzalez-Gutierrez L. Development of an activated carbon-packed microbial bioelectrochemical system for azo dye degradation. BIORESOURCE TECHNOLOGY 2013; 127:37-43. [PMID: 23128299 DOI: 10.1016/j.biortech.2012.09.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 08/04/2012] [Accepted: 09/20/2012] [Indexed: 06/01/2023]
Abstract
A microbial bioelectrochemical reactor (BER) was employed for the degradation of azo dyes without the use of an external electron donor, using activated carbon (GAC) as a redox mediator. Contribution of pH values, open circuit potential (OCP), dye concentration and applied current were individually studied. A batch system and an upflow fixed bed bioreactor were built for analyzing the effect of the applied current on biodegradation of the azo dye Reactive Red 272. The presence of GAC (20% w/v) regulated both pH and OCP values in solution and led to a removal efficiency of 98%. Cyclic voltammetry results indicate a dependence of the electron transfer mechanism with the concentration of the azo compound. With these results, a continuous flow reactor operating with J=0.045 mA cm(-2), led to removal rates of 95% (± 3.5%) in a half-residence time of 1 hour.
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Affiliation(s)
- Arely Cardenas-Robles
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, 76703 Sanfandila, Pedro Escobedo, Qro, Mexico
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223
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Vedrenne M, Vasquez-Medrano R, Prato-Garcia D, Frontana-Uribe BA, Hernandez-Esparza M, de Andrés JM. A ferrous oxalate mediated photo-Fenton system: toward an increased biodegradability of indigo dyed wastewaters. JOURNAL OF HAZARDOUS MATERIALS 2012; 243:292-301. [PMID: 23142056 DOI: 10.1016/j.jhazmat.2012.10.032] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 10/15/2012] [Accepted: 10/17/2012] [Indexed: 06/01/2023]
Abstract
This study assessed the applicability of a ferrous oxalate mediated photo-Fenton pretreatment for indigo-dyed wastewaters as to produce a biodegradable enough effluent, likely of being derived to conventional biological processes. The photochemical treatment was performed with ferrous oxalate and hydrogen peroxide in a Compound Parabolic Concentrator (CPC) under batch operation conditions. The reaction was studied at natural pH conditions (5-6) with indigo concentrations in the range of 6.67-33.33 mg L(-1), using a fixed oxalate-to-iron mass ratio (C(2)O(4)(2-)/Fe(2+)=35) and assessing the system's biodegradability at low (257 mg L(-1)) and high (1280 mg L(-1)) H(2)O(2) concentrations. In order to seek the optimal conditions for the treatment of indigo dyed wastewaters, an experimental design consisting in a statistical surface response approach was carried out. This analysis revealed that the best removal efficiencies for Total Organic Carbon (TOC) were obtained for low peroxide doses. In general it was observed that after 20 kJ L(-1), almost every treated effluent increased its biodegradability from a BOD(5)/COD value of 0.4. This increase in the biodegradability was confirmed by the presence of short chain carboxylic acids as intermediate products and by the mineralization of organic nitrogen into nitrate. Finally, an overall decrease in the LC(50) for Artemia salina indicated a successful detoxification of the effluent.
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Affiliation(s)
- Michel Vedrenne
- Department of Chemical Engineering & Chemistry, Universidad Iberoamericana, Cd. de Mexico, Prolongación Paseo de la Reforma 880, Col. Lomas de Santa Fe, 01219 Mexico, D.F., Mexico
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224
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Franciscon E, Grossman MJ, Paschoal JAR, Reyes FGR, Durrant LR. Decolorization and biodegradation of reactive sulfonated azo dyes by a newly isolated Brevibacterium sp. strain VN-15. SPRINGERPLUS 2012; 1:37. [PMID: 23396675 PMCID: PMC3566399 DOI: 10.1186/2193-1801-1-37] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 10/17/2012] [Indexed: 12/02/2022]
Abstract
Azo dyes constitute the largest and most versatile class of synthetic dyes used in the textile, pharmaceutical, food and cosmetics industries and represent major components in wastewater from these industrial dying processes. Biological decolorization of azo dyes occurs efficiently under low oxygen to anaerobic conditions. However, this process results in the formation of toxic and carcinogenic amines that are resistant to further detoxification under low oxygen conditions. Moreover, the ability to detoxify these amines under aerobic conditions is not a wide spread metabolic activity. In this study we describe the use of Brevibacterium sp. strain VN-15, isolated from an activated sludge process of a textile company, for the sequential decolorization and detoxification of the azo dyes Reactive Yellow 107 (RY107), Reactive Black 5 (RB5), Reactive Red 198 (RR198) and Direct Blue 71 (DB71). Tyrosinase activity was observed during the biotreatment process suggesting the role of this enzyme in the decolorization and degradation process, but no-activity was observed for laccase and peroxidase. Toxicity, measured using Daphnia magna, was completely eliminated.
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Affiliation(s)
- Elisangela Franciscon
- Department of Food Science, Food Engineering School, University of Campinas, (UNICAMP) Rua Monteiro Lobato 80, Cidade Universitária Zeferino Vaz, Campinas, SP 13083-862 Brazil
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225
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Liu Y, Zhang Y, Zhao Z, Li Y, Quan X, Chen S. Enhanced azo dye wastewater treatment in a two-stage anaerobic system with Fe0 dosing. BIORESOURCE TECHNOLOGY 2012; 121:148-153. [PMID: 22858479 DOI: 10.1016/j.biortech.2012.06.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 05/30/2012] [Accepted: 06/01/2012] [Indexed: 06/01/2023]
Abstract
Azo dye wastewater treatment was enhanced in an acidogenic reactor (A1) by Fe(0) dosing. Both COD (50%) and color (60%) removal in A1 were stable when the dye concentrations were increased from 200 to 800 mg/L. However, the performances of a Fe(0)-free control reactor (A2) showed low COD (34%) and color (32%) removals. The reason was attributed that Fe(0) dosing enhanced the activity of fermentative bacteria, which played an important role in acidogenesis and decolorization. The methanogenic reactor fed with the effluent of A1 exhibited higher removal efficiency and treatment stability. These results suggested that Fe(0) powder dosing was helpful to improve acidogenesis and decolorization to create a favorable feeding condition for the subsequent methanogenic treatment.
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Affiliation(s)
- Yiwen Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
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226
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Lin Y, Chen Z, Megharaj M, Naidu R. Degradation of scarlet 4BS in aqueous solution using bimetallic Fe/Ni nanoparticles. J Colloid Interface Sci 2012; 381:30-5. [DOI: 10.1016/j.jcis.2012.05.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/16/2012] [Accepted: 05/17/2012] [Indexed: 11/25/2022]
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227
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Zabłocka-Godlewska E, Przystaś W, Grabińska-Sota E. Decolourization of Diazo Evans Blue by Two Strains of Pseudomonas fluorescens Isolated from Different Wastewater Treatment Plants. WATER, AIR, AND SOIL POLLUTION 2012; 223:5259-5266. [PMID: 23002313 PMCID: PMC3443478 DOI: 10.1007/s11270-012-1276-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 07/17/2012] [Indexed: 05/04/2023]
Abstract
The use of azo dyes is popular in different branches of industry. Discharge of colourants to surface water cause harmful environmental effects. The aim of the present study was evaluation of effectiveness of diazo Evans blue decolourization by two Pseudomonas strains and estimation of process byproducts toxicity. In static conditions, both tested strains removed more than 85 % of dye after 48 h and completely decolorized samples after 120 h. Agitation had negative impact on Evans blue removal (less than 70 % of dye removed after 120 h). Ecotoxicological effects were different for both studied strains beside comparable decolourization effectiveness. Increase of zootoxicity was noticed for strain Sz6 and decrease from IV to III class was noticed for strain SDz3. Optimization of process conditions for the most promising strain SDz3 should be deeply examined.
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Affiliation(s)
- Ewa Zabłocka-Godlewska
- Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
| | - Wioletta Przystaś
- Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
| | - Elżbieta Grabińska-Sota
- Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
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228
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Ding L, Li Q, Zhou D, Cui H, Tang R, Zhai J. Copolymerization of aniline with m-nitroaniline and removal of m-nitroaniline from aqueous solutions using a polyaniline-modified electrode: A comparative study. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.06.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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229
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Spagni A, Casu S, Grilli S. Decolourisation of textile wastewater in a submerged anaerobic membrane bioreactor. BIORESOURCE TECHNOLOGY 2012; 117:180-185. [PMID: 22613894 DOI: 10.1016/j.biortech.2012.04.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 04/13/2012] [Accepted: 04/19/2012] [Indexed: 06/01/2023]
Abstract
Azo dye decolourisation can be easily achieved by biological reduction under anaerobic conditions. The aim of this study was to evaluate the applicability of submerged anaerobic membrane bioreactors (SAMBRs) for the decolourisation of dyeing wastewater containing azo dyes. The reactive orange 16 was used as model of an azo dye. The results demonstrated that very high decolourisation (higher than 99%) can be achieved by SAMBRs. Although decolourisation was not significantly influenced by the azo dye concentrations up to 3.2 g L(-1), methane production was greatly inhibited (up to 80-85%). Since volatile fatty acids accumulated in the treatment system with the azo dye concentration increase, methanogenes seem to be the most sensitive microbial populations of the anaerobic ecological community. The results demonstrated that anaerobic process combined with membrane filtration can deal with highly concentrated wastewaters that result from stream separation of industrial discharges.
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Affiliation(s)
- Alessandro Spagni
- ENEA (Italian National Agency for New Technologies, Energy and the Sustainable Economic Development), Environment Department, Water Resource Management Laboratory, via M.M. Sole 4, 40129 Bologna, Italy.
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230
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Hakimelahi M, Moghaddam MRA, Hashemi SH. Biological treatment of wastewater containing an azo dye using mixed culture in alternating anaerobic/aerobic sequencing batch reactors. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-011-0673-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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231
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Cirik K, Kitiş M, Çinar Ö. Effect of nitrate on anaerobic azo dye reduction. Bioprocess Biosyst Eng 2012; 36:69-79. [DOI: 10.1007/s00449-012-0762-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 05/15/2012] [Indexed: 11/28/2022]
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232
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Qu Y, Cao X, Ma Q, Shi S, Tan L, Li X, Zhou H, Zhang X, Zhou J. Aerobic decolorization and degradation of Acid Red B by a newly isolated Pichia sp. TCL. JOURNAL OF HAZARDOUS MATERIALS 2012; 223-224:31-38. [PMID: 22579761 DOI: 10.1016/j.jhazmat.2012.04.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/11/2012] [Accepted: 04/15/2012] [Indexed: 05/31/2023]
Abstract
A yeast strain with strong abilities to decolorize various azo dyes aerobically was isolated from the sea mud. The strain designated as TCL was identified as Pichia sp. on the basis of 18S rDNA analysis. More than 90% of Acid Red B (100mg/L) was decolorized within 10h in the Martin Broth at 30°C and 150r/min, and strain TCL could tolerate up to 1000mg/L of the dye. Meantime, the effects of different physicochemical parameters (media, concentrations of glucose, NH(4)Cl, initial dye and NaCl) were investigated to improve the removal efficiency. The significant biodegradation process of Acid Red B rather than inactive surface adsorption was confirmed by UV-vis, HPLC analysis and colorless microbial cells. In addition, the metabolic products and partial degradation pathway were proposed with the help of HPLC-MS analysis. To the best of our knowledge, it is the first time that a yeast strain of Pichia sp. has been reported with the excellent decolorizing ability against azo dyes under shaking conditions. This work conferred the utilization possibility of strain TCL in the biological treatment of dyeing wastewater.
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Affiliation(s)
- Yuanyuan Qu
- State Key Laboratory of Fine Chemical and Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China.
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233
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Mezohegyi G, van der Zee FP, Font J, Fortuny A, Fabregat A. Towards advanced aqueous dye removal processes: a short review on the versatile role of activated carbon. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2012; 102:148-64. [PMID: 22459012 DOI: 10.1016/j.jenvman.2012.02.021] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 01/25/2012] [Accepted: 02/18/2012] [Indexed: 05/06/2023]
Abstract
During the last decade, several physico-chemical and biological techniques have been developed to remove colour from textile wastewaters. Some of these techniques rely on and many will profit from activated carbon (AC). The role of AC is versatile: (1) it acts as a dye adsorbent, not only in straightforward adsorption processes but also in AC-enhanced coagulation and membrane filtration processes; (2) it generates strong oxidising agents (mostly, hydroxyl (OH) radicals) in electrochemical dye oxidation; (3) it catalyses OH production in advanced oxidation processes; (4) it catalyses anaerobic (azo) dye reduction and supports biofilm growth in microbial dye removal. This paper reviews the role of AC in dye decolourisation, evaluates the feasibility of each AC-amended decolourisation technique and discusses perspectives on future research.
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Affiliation(s)
- Gergo Mezohegyi
- Centre for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, Box 2461, 3001 Leuven, Belgium
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234
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Wang W, Zhang Z, Ni H, Yang X, Li Q, Li L. Decolorization of industrial synthetic dyes using engineered Pseudomonas putida cells with surface-immobilized bacterial laccase. Microb Cell Fact 2012; 11:75. [PMID: 22686507 PMCID: PMC3439328 DOI: 10.1186/1475-2859-11-75] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 05/19/2012] [Indexed: 01/27/2023] Open
Abstract
Background Microbial laccases are highly useful in textile effluent dye biodegradation. However, the bioavailability of cellularly expressed or purified laccases in continuous operations is usually limited by mass transfer impediment or enzyme regeneration difficulty. Therefore, this study develops a regenerable bacterial surface-displaying system for industrial synthetic dye decolorization, and evaluates its effects on independent and continuous operations. Results A bacterial laccase (WlacD) was engineered onto the cell surface of the solvent-tolerant bacterium Pseudomonas putida to construct a whole-cell biocatalyst. Ice nucleation protein (InaQ) anchor was employed, and the ability of 1 to 3 tandemly aligned N-terminal repeats to direct WlacD display were compared. Immobilized WlacD was determined to be surface-displayed in functional form using Western blot analysis, immunofluorescence microscopy, flow cytometry, and whole-cell enzymatic activity assay. Engineered P. putida cells were then applied to decolorize the anthraquinone dye Acid Green (AG) 25 and diazo-dye Acid Red (AR) 18. The results showed that decolorization of both dyes is Cu2+- and mediator-independent, with an optimum temperature of 35°C and pH of 3.0, and can be stably performed across a temperature range of 15°C to 45°C. A high activity toward AG25 (1 g/l) with relative decolorization values of 91.2% (3 h) and 97.1% (18 h), as well as high activity to AR18 (1 g/l) by 80.5% (3 h) and 89.0% (18 h), was recorded. The engineered system exhibited a comparably high activity compared with those of separate dyes in a continuous three-round shake-flask decolorization of AG25/AR18 mixed dye (each 1 g/l). No significant decline in decolorization efficacy was noted during first two-rounds but reaction equilibriums were elongated, and the residual laccase activity eventually decreased to low levels. However, the decolorizing capacity of the system was easily retrieved via a subsequent 4-h cell culturing. Conclusions This study demonstrates, for the first time, the methodology by which the engineered P. putida with surface-immobilized laccase was successfully used as regenerable biocatalyst for biodegrading synthetic dyes, thereby opening new perspectives in the use of biocatalysis in industrial dye biotreatment.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, Wuhan 430070, China
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235
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Zheng YM, Yunus RF, Nanayakkara KN, Chen JP. Electrochemical Decoloration of Synthetic Wastewater Containing Rhodamine 6G: Behaviors and Mechanism. Ind Eng Chem Res 2012. [DOI: 10.1021/ie2019273] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yu-Ming Zheng
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - Rita Farida Yunus
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - K.G. Nadeeshani Nanayakkara
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - J. Paul Chen
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
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236
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Shi JW, Yan X, Cui HJ, Zong X, Fu ML, Chen S, Wang L. Low-temperature synthesis of CdS/TiO2 composite photocatalysts: Influence of synthetic procedure on photocatalytic activity under visible light. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.01.001] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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237
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High performance achieved by microbes to separate laundry effluents resulting in producing high water quality in a compact area. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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238
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Apostol LC, Pereira L, Pereira R, Gavrilescu M, Alves MM. Biological decolorization of xanthene dyes by anaerobic granular biomass. Biodegradation 2012; 23:725-37. [PMID: 22437968 DOI: 10.1007/s10532-012-9548-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 03/08/2012] [Indexed: 11/28/2022]
Abstract
Biodegradation of a xanthene dyes was investigated for the first time using anaerobic granular sludge. On a first screening, biomass was able to decolorize, at different extents, six azo dye solutions: acid orange 7, direct black 19, direct blue 71, mordant yellow 10, reactive red 2 and reactive red 120 and two xanthene dyes--Erythrosine B and Eosin Y. Biomass concentration, type of electron donor, induction of biomass with dye and mediation with activated carbon (AC) were variables studied for Erythrosine B (Ery) as model dye. Maximum color removal efficiency was achieved with 4.71 g VSS L⁻¹, while the process rates were independent of the biomass concentration above 1.89 g VSS L⁻¹. No considerable effects were observed when different substrates were used as electron donors (VFA, glucose or lactose). Addition of Ery in the incubation period of biomass led to a fivefold increase of the decolorization rate. The rate of Ery decolorization almost duplicated in the presence of commercial AC (0.1 g L⁻¹ AC₀). Using different modified AC samples (from the treatment of AC₀), a threefold higher rate was obtained with the most basic one, AC(H₂), as compared with non-mediated reaction. Higher rates were obtained at pH 6.0. Chemical reduction using Na₂S confirmed the recalcitrant nature of this dye. The results attest that decolorization of Ery is essentially due to enzymatic and adsorption phenomena.
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Affiliation(s)
- Laura Carmen Apostol
- Department of Environmental Engineering and Management, "Gheorghe Asachi" Technical University of Iasi, 73 Prof.dr.docent Dimitrie Mangeron Street, 700050 Iasi, Romania
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239
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Poly (N-isopropylacrylamide) microgel based assemblies for organic dye removal from water: microgel diameter effects. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2620-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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240
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Khouni I, Marrot B, Amar RB. Treatment of reconstituted textile wastewater containing a reactive dye in an aerobic sequencing batch reactor using a novel bacterial consortium. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2011.11.030] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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241
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Ogugbue CJ, Morad N, Sawidis T, Oranusi NA. Decolorization and partial mineralization of a polyazo dye by Bacillus firmus immobilized within tubular polymeric gel. 3 Biotech 2012; 2:67-78. [PMID: 22582158 PMCID: PMC3339580 DOI: 10.1007/s13205-011-0035-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 10/20/2011] [Indexed: 11/25/2022] Open
Abstract
The degradation of C.I. Direct red 80, a polyazo dye, was investigated using Bacillus firmus immobilized by entrapment in tubular polymeric gel. This bacterial strain was able to completely decolorize 50 mg/L of C.I. Direct red 80 under anoxic conditions within 12 h and also degrade the reaction intermediates (aromatic amines) during the subsequent 12 h under aerobic conditions. The tubular gel harboring the immobilized cells consisted of anoxic and aerobic regions integrated in a single unit which was ideal for azo dye degradation studies. Results obtained show that effective dye decolorization (97.8%), chemical oxygen demand (COD) reduction (91.7%) and total aromatic amines removal were obtained in 15 h with the immobilized bacterial cell system whereas for the free cells, a hydraulic residence time of 24 h was required for an equivalent performance in a sequential anoxic and aerobic process. Repeated-batch experiments indicate the immobilized cells could decolorize C.I. Direct red 80 and reduce medium COD in five successive batch runs with enhanced activity obtained after each consecutive run, thus suggesting its stability and potential for repeated use in wastewater treatment. UV-visible spectrophotometry and HPLC analysis were used to confirm the partial mineralization of the dye. Data from this study could be used as a reference for the development of effective industrial scale biotechnological process for the removal of dyes and their metabolites in textile wastewater.
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Affiliation(s)
- Chimezie Jason Ogugbue
- School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Department of Microbiology, University of Port Harcourt, Port Harcourt, Nigeria
| | - Norhashimah Morad
- School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Thomas Sawidis
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia Greece
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242
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Du LN, Wang B, Li G, Wang S, Crowley DE, Zhao YH. Biosorption of the metal-complex dye Acid Black 172 by live and heat-treated biomass of Pseudomonas sp. strain DY1: kinetics and sorption mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2012; 205-206:47-54. [PMID: 22236947 DOI: 10.1016/j.jhazmat.2011.12.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 11/03/2011] [Accepted: 12/01/2011] [Indexed: 05/31/2023]
Abstract
The ability of Pseudomonas sp. strain DY1 to adsorb Acid Black 172 was studied to determine the kinetics and mechanisms involved in biosorption of the dye. Kinetic data for adsorption fit a pseudo-second-order model. Increased initial dye concentration could significantly enhance the amount of dye adsorbed by heat-treated biomass in which the maximum amount of dye adsorbed was as high as 2.98 mmol/g biomass, whereas it had no significant influence on dye sorption by live biomass. As treated temperature increased, the biomass showed gradual increase of dye sorption ability. Experiments using potentiometric titration and Fourier transform infrared spectroscopy (FTIR) indicated that amine groups (NH2) played a prominent role in biosorption of Acid Black 172. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and transmission electron microscopy (TEM) analysis indicated that heat treatment of the biomass increased the permeability of the cell walls and denatured the intracellular proteins. The results of biosorption experiments by different cell components confirmed that intracellular proteins contributed to the increased biosorption of Acid Black 172 by heat-treated biomass. The data suggest that biomass produced by this strain may have application for removal of metal-complex dyes from wastewater streams generated from the dye products industry.
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Affiliation(s)
- Lin-Na Du
- College of Life Science, Zhejiang University, 310058, Hangzhou, Zhejiang Province, PR China
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243
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Sequential Anaerobic/Aerobic Treatment of Dye-Containing Wastewaters: Colour and COD Removals, and Ecotoxicity Tests. Appl Biochem Biotechnol 2012; 166:1057-69. [DOI: 10.1007/s12010-011-9493-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 12/06/2011] [Indexed: 10/14/2022]
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244
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Bacterial Decolorization and Degradation of Azo Dyes. ENVIRONMENTAL SCIENCE AND ENGINEERING 2012. [DOI: 10.1007/978-3-642-23789-8_4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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245
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Gupta VK, Ali I, Saleh TA, Nayak A, Agarwal S. Chemical treatment technologies for waste-water recycling—an overview. RSC Adv 2012; 2:6380. [DOI: 10.1039/c2ra20340e] [Citation(s) in RCA: 655] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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246
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Méndez-Martínez AJ, Dávila-Jiménez MM, Ornelas-Dávila O, Elizalde-González MP, Arroyo-Abad U, Sirés I, Brillas E. Electrochemical reduction and oxidation pathways for Reactive Black 5 dye using nickel electrodes in divided and undivided cells. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.10.047] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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247
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Parasuraman D, Serpe MJ. Poly (N-isopropylacrylamide) microgel-based assemblies for organic dye removal from water. ACS APPLIED MATERIALS & INTERFACES 2011; 3:4714-21. [PMID: 22053867 DOI: 10.1021/am201132x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgel assemblies (aggregates) were synthesized via polymerization of the cross-linker N,N'-methylenebisacrylamide (BIS) in the presence of microgels in solution. In this case, the microgels were entrapped in the polymerized cross-linker network. The aggregates were investigated for their ability to remove the organic, azo dye molecule 4-(2-hydroxy-1-napthylazo) benzenesulfonic acid sodium salt (Orange II) from water at both room and elevated temperatures. These results were compared with unaggregated microgels that were previously reported (Parasuraman, D.; Serpe, M. J. ACS. Appl. Mater. Interfaces 2011, 3, 2732.). It was found that the removal efficiency increased at elevated temperature, most likely due to the thermoresponsive nature of the pNIPAm-based aggregates, which expel water of solvation and deswell at higher temperature and reswell when they are cooled back to room temperature. Furthermore, increasing the number of cycles the aggregates are heated and cooled enhanced the percent removal of the dye from water. We also evaluated the effect of increasing cross-linker concentration on the removal efficiency, where we found the removal efficiency to increase with increasing cross-linker concentration in the aggregates. The maximum removal efficiency reached by the microgel aggregates at elevated temperatures was calculated to be 73.1%. This enhanced uptake is due to the presence of larger internal volume between the microgels in the aggregates, which the individual microgels lack. Control studies reveal that the structure and hydrophobicity of the aggregates lead to the enhanced uptake efficiencies and is not due to the presence of BIS alone. We determined that aggregates leak 75.6% of the dye that was originally removed from solution. The removal of Orange II by the aggregates at room temperature was fit by a Langmuir sorption isotherm.
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Affiliation(s)
- Deepika Parasuraman
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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248
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Kalathil S, Lee J, Cho MH. Granular activated carbon based microbial fuel cell for simultaneous decolorization of real dye wastewater and electricity generation. N Biotechnol 2011; 29:32-7. [DOI: 10.1016/j.nbt.2011.04.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 04/12/2011] [Accepted: 04/17/2011] [Indexed: 11/27/2022]
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249
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Mansour HB, Boughzala O, Dridi D, Barillier D, Chekir-Ghedira L, Mosrati R. Les colorants textiles sources de contamination de l’eau : CRIBLAGE de la toxicité et des méthodes de traitement. ACTA ACUST UNITED AC 2011. [DOI: 10.7202/1006453ar] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Les colorants sont largement utilisés dans les imprimeries, les produits alimentaires, cosmétiques et cliniques, mais en particulier dans les industries textiles pour leur stabilité chimique et la facilité de leur synthèse et leur variété de couleurs. Cependant, ces colorants sont à l’origine de la pollution une fois évacués dans l’environnement. La production mondiale des colorants est estimée à plus de 800 000 t•an-1et les colorants azoïques sont majoritaires et représentent 60-70 %. Compte tenu de la composition très hétérogène de ces derniers, leur dégradation conduit souvent à la conception d’une chaîne de traitement physique-chimique et biologique assurant l’élimination des différents polluants par étapes successives. Dés études ont montré que plusieurs colorants azoïques sont toxiques et mutagènes et le traitement biologique de ces colorants semble présenter un intérêt scientifique majeur. Les traitements physico-chimiques communs (adsorption, coagulation/floculation, précipitation etc.) sont couramment utilisés pour les effluents industriels. Malgré leur rapidité, ces méthodes se sont avérées peu efficaces compte tenu des normes exigées sur ces rejets. Le traitement biologique constitue une alternative fiable; en effet, plusieurs microorganismes sont capables de transformer les colorants azoïques en sous-produits incolores. Les bactéries dégradent les colorants azoïques en deux étapes : un clivage de liaison azo, par l’intermédiaire de l’azoréductase, suivi d’une oxydation des amines aromatiques formées lors de la première étape. L’azoréduction constitue alors une étape clé du traitement des effluents chargés de ces colorants.
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Affiliation(s)
- Hedi Ben Mansour
- Équipe de Recherche en Physico-Chimie et Biotechnologie (ERPCB – EA3914), IUT-UFR Sciences, Université de Caen, Basse Normandie, France, Laboratoire de Biologie Cellulaire, Faculté de Médicine Dentaire, Rue Avicenne, 5000 Monastir, Tunisie, Institut Supérieur de Biotechnologie Technopole Sidi Thabet, Université Manouba, Manouba, Tunisie, Téléphone: 00216 97 367 568, T.élécopieur: 00216 73 461 830
| | - Oualid Boughzala
- Équipe de Recherche en Physico-Chimie et Biotechnologie (ERPCB – EA3914), IUT-UFR Sciences, Université de Caen, Basse Normandie, France
| | - dorra Dridi
- Institut Supérieur de Biotechnologie Technopole Sidi Thabet, Université Manouba, Manouba, Tunisie
| | - Daniel Barillier
- Équipe de Recherche en Physico-Chimie et Biotechnologie (ERPCB – EA3914), IUT-UFR Sciences, Université de Caen, Basse Normandie, France
| | - Leila Chekir-Ghedira
- Laboratoire de Biologie Cellulaire, Faculté de Médicine Dentaire, Rue Avicenne, 5000 Monastir, Tunisie
| | - Ridha Mosrati
- Équipe de Recherche en Physico-Chimie et Biotechnologie (ERPCB – EA3914), IUT-UFR Sciences, Université de Caen, Basse Normandie, France
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250
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Yu L, Li WW, Lam MHW, Yu HQ, Wu C. Isolation and characterization of a Klebsiella oxytoca strain for simultaneous azo-dye anaerobic reduction and bio-hydrogen production. Appl Microbiol Biotechnol 2011; 95:255-62. [DOI: 10.1007/s00253-011-3688-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 10/11/2011] [Accepted: 10/28/2011] [Indexed: 10/15/2022]
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