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Treatment and Reuse of Wastewater from the Textile Wet-Processing Industry : Review of Emerging Technologies 纺织湿加工业废水的处理与回用:新兴技术综述
Journal of Chemical Technology & Biotechnology Pub Date : 1998-08-01 DOI: 10.1002/(SICI)1097-4660(199808)72:4<289::AID-JCTB905>3.0.CO;2-#
P. Vandevivere, R. Bianchi, W. Verstraete
{"title":"Treatment and Reuse of Wastewater from the Textile Wet-Processing Industry : Review of Emerging Technologies","authors":"P. Vandevivere, R. Bianchi, W. Verstraete","doi":"10.1002/(SICI)1097-4660(199808)72:4<289::AID-JCTB905>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199808)72:4<289::AID-JCTB905>3.0.CO;2-#","url":null,"abstract":"New ecolabels for textile products and tighter restrictions on waste- water discharges are forcing textile wet processors to reuse process water and chemicals. This challenge has prompted intensive research in new advanced treatment technologies, some of which currently making their way to full-scale installations. These comprise polishing treatments such as -ltration, chemical oxidation and specialized Nocculation techniques and pre-treatment steps includ- ing anaerobic digestion, -xed--lm bioreactors, FentonIs reagent oxidation, elec- trolysis, or foam Notation. Though several of these new technologies are promising in terms of cost and performance, they all su†er limitations which require further research and/or need broader validation. A segment of the research deals with the separate handling of speci-c sub-streams such as dyebath effluents to which membrane -ltration is sometimes applied. The main limitation of this approach is the treatment of the concentrate stream. The spectrum of available technologies may, in the future, be further broadened to include oxidation, specialized bio-sorptive processes, solvent extrac- fungi/H 2 O 2 -driven tion, or photocatalysis. 1998 SCI ( J. Chem. T echnol. Biotechnol. 72, 289E302 (1998)","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"7 1","pages":"289-302"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86413941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1106
Thermal stabilization by polyols of β‐xylanase from Bacillus amyloliquefaciens 解淀粉芽孢杆菌β -木聚糖酶多元醇的热稳定性研究
Journal of Chemical Technology & Biotechnology Pub Date : 1998-03-01 DOI: 10.1002/(SICI)1097-4660(199803)71:3<241::AID-JCTB810>3.3.CO;2-7
J. Breccia, A. C. Morán, G. R. Castro, F. Siñeriz
{"title":"Thermal stabilization by polyols of β‐xylanase from Bacillus amyloliquefaciens","authors":"J. Breccia, A. C. Morán, G. R. Castro, F. Siñeriz","doi":"10.1002/(SICI)1097-4660(199803)71:3<241::AID-JCTB810>3.3.CO;2-7","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199803)71:3<241::AID-JCTB810>3.3.CO;2-7","url":null,"abstract":"Purified endo-β-1,4-xylanase of Bacillus amyloliquefaciens MIR 32 retained 100% of its activity after 4 days of incubation at 50°C. Sorbitol (400 mg cm -3 ) produced a 63-fold increase in the half-life of the enzyme at 65°C, which was only 29 min at this temperature in the absence of the polyol. This thermal stabilizing activity increased exponentially in respect to sorbitol concentration in the range 250-400 mg cm -3 and was dependent on the pH, showing a maximum at pH values between 5.25 and 8.0. The circular dichroism (CD) thermal scanning profile (50°C h -1 ) at 224 nm showed that changes in the secondary structure of xylanase started at 65°C, while in the presence of sorbitol (400 mg cm -3 ) these modifications started at 80°C. This study indicated that sorbitol might be a valuable stabilizer for the use of β-xylanase from B. amyloliquefaciens at high temperatures.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"3 1","pages":"241-245"},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86896832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Effect of dissolved oxygen level on lactase production by Kluyveromyces fragilis 溶解氧水平对脆弱克鲁维菌产乳糖酶的影响
Journal of Chemical Technology & Biotechnology Pub Date : 1998-01-01 DOI: 10.1002/(sici)1097-4660(199809)73:1<71::aid-jctb924>3.3.co;2-4
S. Barberis, J. C. Gentina
{"title":"Effect of dissolved oxygen level on lactase production by Kluyveromyces fragilis","authors":"S. Barberis, J. C. Gentina","doi":"10.1002/(sici)1097-4660(199809)73:1<71::aid-jctb924>3.3.co;2-4","DOIUrl":"https://doi.org/10.1002/(sici)1097-4660(199809)73:1<71::aid-jctb924>3.3.co;2-4","url":null,"abstract":"The influence of dissolved oxygen (% DO) on lactase production by Kluyveromyces fragilis (NRRL-Y-1109) in chemostat culture using a defined medium was studied. The aim was to determine conditions for both high specific enzyme activity and high volumetric enzyme productivity. Significant differences in the specific enzyme activity and specific and volumetric enzyme productivity were found at the corresponding steady states when the DO was varied between 0 and 90%. Maximum lactase production was attained at 10% DO. Under this condition the best results were an enzyme activity of 5910 IU g -1 , specific production rate of 1810 IU g -1 h -1 and volumetric production rate of 1530 IU dm -3 h -1 . This seem to be due to the fact that at low aeration conditions the yeast metabolism is more reductive and as a consequence it verifies both higher specific lactose consumption rate and higher enzyme expression than in full aeration conditions. The results of this investigation are also compared with those of other studies of lactase production by Kluyveromyces sp.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"22 1","pages":"71-73"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82828064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Oxidative coupling of methane over Sm‐promoted MgO: Influence of composition and preparation conditions 甲烷在Sm -促进MgO上的氧化偶联:组成和制备条件的影响
Journal of Chemical Technology & Biotechnology Pub Date : 1997-12-01 DOI: 10.1002/(SICI)1097-4660(199712)70:4<325::AID-JCTB767>3.0.CO;2-#
V. Choudhary, V. Rane
{"title":"Oxidative coupling of methane over Sm‐promoted MgO: Influence of composition and preparation conditions","authors":"V. Choudhary, V. Rane","doi":"10.1002/(SICI)1097-4660(199712)70:4<325::AID-JCTB767>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199712)70:4<325::AID-JCTB767>3.0.CO;2-#","url":null,"abstract":"Influences of promoter concentration (or Sm/Mg ratio), precursor for MgO (viz. Mg-acetate, Mg-carbonate and Mg-hydroxide), calcination temperature of Sm-promoted MgO catalyst on the catalytic activity/selectivity in the oxidative coupling of methane (OCM) at different temperatures (650-850°C) and CH 4 /O 2 ratios in feed (2.0-8.0) at a high space velocity (51600 cm 3 /g.h) have been investigated. The catalytic activity/selectivity of Sm-MgO catalysts in the OCM are found to be strongly influenced by the Sm/Mg ratio, precursor used for MgO and catalyst calcination temperature. The catalyst with Sm/Mg ratio of 0.11, prepared using magnesium acetate and magnesium carbonate as a source of MgO and calcining at 950°C, is found to be highly active and selective in the OCM process. A drastic reduction in catalytic activity/selectivity is observed when the catalyst is supported on low surface area porous catalyst carriers, indicating strong catalyst-support interactions.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"1 1","pages":"325-330"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82222198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Surface molecular imprinting on photosensitive dithiocarbamoyl polyacrylonitrile membranes using photograft polymerization 光敏二硫代氨基甲酰聚丙烯腈膜表面分子印迹的光接枝聚合
Journal of Chemical Technology & Biotechnology Pub Date : 1997-12-01 DOI: 10.1002/(SICI)1097-4660(199712)70:4<355::AID-JCTB793>3.0.CO;2-#
H. Wang, Takaomi Kobayashi, N. Fujii
{"title":"Surface molecular imprinting on photosensitive dithiocarbamoyl polyacrylonitrile membranes using photograft polymerization","authors":"H. Wang, Takaomi Kobayashi, N. Fujii","doi":"10.1002/(SICI)1097-4660(199712)70:4<355::AID-JCTB793>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199712)70:4<355::AID-JCTB793>3.0.CO;2-#","url":null,"abstract":"A cross-linking polymeric layer containing molecular imprint sites of theophylline (THO) was formed on a polyacrylonitrile membrane, which had a photosensitive dithiocarbamate group, by photograft copolymerization. In the presence of THO template molecules, aqueous solutions of N, N′-methylenebisacrylamide (MBAA) and acrylic acid (AA) were used for the photo-initiated polymerization. After the photograft polymerization, removal of the template was carried out and then an aqueous solution of THO or caffeine (CAF) was permeated through the resultant membrane. It was found that the polymeric layer of MBAA and AA formed on the membrane surface can recognize with high efficiency the THO molecule and take it up into the surface layer of the membrane. Relative to THO, CAF was not taken up effectively by the membrane. The results indicated that the photograft treatment is useful for the formation of the THO-imprinted polymeric layer on the membrane surface. ©1997 SCI","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"64 1","pages":"355-362"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86205002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 72
Adsorption of nickel on Enterococcus hirae cell walls 镍在海氏肠球菌细胞壁上的吸附
Journal of Chemical Technology & Biotechnology Pub Date : 1997-09-01 DOI: 10.1002/(SICI)1097-4660(199709)70:1<45::AID-JCTB737>3.3.CO;2-F
S. Bossrez, J. Remacle, J. Coyette
{"title":"Adsorption of nickel on Enterococcus hirae cell walls","authors":"S. Bossrez, J. Remacle, J. Coyette","doi":"10.1002/(SICI)1097-4660(199709)70:1<45::AID-JCTB737>3.3.CO;2-F","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199709)70:1<45::AID-JCTB737>3.3.CO;2-F","url":null,"abstract":"The metal affinity of Enterococcus hirae cell walls and the relation to the chemical composition of the wall constituents were investigated, by studying the nickel absorption on purified cell walls of Enterococcus hirae mutants. The strains of Enterococcus hirae are characterised by their penicillin resistance, the mother strains ATCC9790, the penicillin-sensitive mutant AS21 and the penicillin-resistant mutant R40 present an MIC (minimum inhibitory concentration of penicillin) of 1-2, 0.075 and 80 μg cm -3 , respectively. Preliminary results showed that the penicillin-resistant cell wall (R40) had more affinity for nickel than the others. The maximum amount of fixed nickel average 2.03 μmol of Ni mg -1 of R40 cells walls, 1.06 μmol of Ni mg -1 of AS21 cell walls and 0.96 μmol of Ni mg -1 of ATCC cell walls. The Scatchard model showed at least two types of nickel fixation sites, with low and high affinity respectively, and a negative cooperativity between sites. Application of the BET isotherm implies a multilayer adsorption process in which one layer does not need to be completely saturated before the succeeding ones. The potentiometric titration curve showed the proton affinity distribution of the cell walls. Two protonation constants were obtained, one at pH 4.5 which corresponded to the pK a of a weak acid, and one at pH 7.2 which corresponded to the pK a of the couple of H 2 PO 4 - /HPO 4 2- .","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"40 1","pages":"45-50"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80158383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Photochemical reduction of nitrate to ammonia using layered hydrous titanate/cadmium sulphide nanocomposites 利用层状水合钛酸盐/硫化镉纳米复合材料将硝酸盐光化学还原为氨
Journal of Chemical Technology & Biotechnology Pub Date : 1996-12-01 DOI: 10.1002/(SICI)1097-4660(199612)67:4<345::AID-JCTB586>3.0.CO;2-#
Tsugio Sato, Ken-Ichi Sato, Y. Fujishiro, T. Yoshioka, A. Okuwaki
{"title":"Photochemical reduction of nitrate to ammonia using layered hydrous titanate/cadmium sulphide nanocomposites","authors":"Tsugio Sato, Ken-Ichi Sato, Y. Fujishiro, T. Yoshioka, A. Okuwaki","doi":"10.1002/(SICI)1097-4660(199612)67:4<345::AID-JCTB586>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199612)67:4<345::AID-JCTB586>3.0.CO;2-#","url":null,"abstract":"The photocatalytic activity of H2Ti4O9/CdS nanocomposites incorporating CdS particles, less than 0·8 nm thick, in the interlayer of H2Ti4O9 was evaluated for the reduction of NO3− with and without methanol. NO3− was photochemically reduced by bandgap illumination in the presence of H2Ti4O9/CdS nanocomposites with and without methanol although unsupported CdS showed no noticeable photocatalytic activity for NO3− reduction. The oxidation of CdS in H2Ti4O9/CdS to SO42- was accompanied by NO3− reduction without methanol, whereas addition of methanol was useful to promote the NO3− reduction and depress the oxidation of CdS. The catalytic activity of H2Ti4O9/CdS greatly increased with doping Pt particles in the interlayer.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"23 1","pages":"345-349"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84967253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Book Review Loss prevention and safety promotion in the process industries, Volumes I & II Proceedings of the 8th International Symposium, Antwerp, Belgium, June 69, 1995. 《过程工业中的损失预防和安全促进》，第八届国际研讨会第一卷和第二卷论文集，比利时安特卫普，1995年6月69日。
Journal of Chemical Technology & Biotechnology Pub Date : 1996-12-01 DOI: 10.1002/(SICI)1097-4660(199612)67:4<413::AID-JCTB544>3.3.CO;2-A
N. Shah
{"title":"Book Review Loss prevention and safety promotion in the process industries, Volumes I & II Proceedings of the 8th International Symposium, Antwerp, Belgium, June 69, 1995.","authors":"N. Shah","doi":"10.1002/(SICI)1097-4660(199612)67:4<413::AID-JCTB544>3.3.CO;2-A","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199612)67:4<413::AID-JCTB544>3.3.CO;2-A","url":null,"abstract":"","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"41 1","pages":"413-413"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78380247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Book Review Chemically modified surfaces. 化学修饰表面。
Journal of Chemical Technology & Biotechnology Pub Date : 1996-11-01 DOI: 10.1002/(SICI)1097-4660(199611)67:3<316::AID-JCTB2541>3.3.CO;2-U
R. Davidson
{"title":"Book Review Chemically modified surfaces.","authors":"R. Davidson","doi":"10.1002/(SICI)1097-4660(199611)67:3<316::AID-JCTB2541>3.3.CO;2-U","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199611)67:3<316::AID-JCTB2541>3.3.CO;2-U","url":null,"abstract":"","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"4 1","pages":"316-316"},"PeriodicalIF":0.0,"publicationDate":"1996-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77690784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Book Review The encyclopedia of chemical technology KirkOthmer, Vols 9, 10 and 11. 书评化学技术百科全书KirkOthmer，卷9,10和11。
Journal of Chemical Technology & Biotechnology Pub Date : 1996-10-01 DOI: 10.1002/(SICI)1097-4660(199610)67:2<214::AID-JCTB5555>3.0.CO;2-#
J. Winterbottom
{"title":"Book Review The encyclopedia of chemical technology KirkOthmer, Vols 9, 10 and 11.","authors":"J. Winterbottom","doi":"10.1002/(SICI)1097-4660(199610)67:2<214::AID-JCTB5555>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1097-4660(199610)67:2<214::AID-JCTB5555>3.0.CO;2-#","url":null,"abstract":"","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"61 1","pages":"214-214"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74582214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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