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Nitrate removal from drinking water in a fluidized‐bed biological denitrification bioreactor 流化床生物反硝化反应器去除饮用水中硝酸盐的研究
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070509
J. Holló, L. Czakó
{"title":"Nitrate removal from drinking water in a fluidized‐bed biological denitrification bioreactor","authors":"J. Holló, L. Czakó","doi":"10.1002/ABIO.370070509","DOIUrl":"https://doi.org/10.1002/ABIO.370070509","url":null,"abstract":"In most industrially developed countries an increasing degree of nitrification can be observed in potential water reservoirs. High nitrate content is unacceptable by public health standards. Since contamination seems to be unavoidable, the only realistic solution is purification prior to utilization. One of the potential variations is biological denitrification with a highly intensive facility, a fluidized- or expanded-bed bioreactor. Based on laboratory and pilot plant experiments, a detailed analysis is presented on the problems arising and solutions offered in the construction of a purification system meeting high quality requirements of drinking water purification. The crucial point is selection of the denitrifying microorganisms and organic matter required for denitrification, which simultaneously determines the attachment of bacteria to the support material (autoimmobilization), the intensity of nitrate removal and the character of post-purification.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"20 1","pages":"417-423"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82168369","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: 23
Auswirkungen der Methode der Linearisierung des μ‐cs‐Verlaufs auf die Parameteranpassung bei dem Monodschen Modell 影响之Linearisierung方法μ‐‐不被在Parameteranpassung Monodschen模式
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070215
O. Stiebitz, K. Wolf, W. Klöden
{"title":"Auswirkungen der Methode der Linearisierung des μ‐cs‐Verlaufs auf die Parameteranpassung bei dem Monodschen Modell","authors":"O. Stiebitz, K. Wolf, W. Klöden","doi":"10.1002/ABIO.370070215","DOIUrl":"https://doi.org/10.1002/ABIO.370070215","url":null,"abstract":"Nowadays, the MONOD conception is the foundation for modelling the growth-connected substrat consumption. The methods of the parameter estimation for μmax and Ks have a variable exactness. Using the experimental MONOD's data [1] variable graphical and numerical methods are analyzed from the point of statistical view. Appropriate objective functions are proposed.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"44 1","pages":"167-172"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80945943","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
Gas chromatographic analysis of free fatty acids. Part 1. Principles and methodic variants 游离脂肪酸的气相色谱分析。第1部分。原则和方法变体
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070521
J. Pörschmann, T. Welsch, S. Pörschmann
{"title":"Gas chromatographic analysis of free fatty acids. Part 1. Principles and methodic variants","authors":"J. Pörschmann, T. Welsch, S. Pörschmann","doi":"10.1002/ABIO.370070521","DOIUrl":"https://doi.org/10.1002/ABIO.370070521","url":null,"abstract":"Proceeding from a literature search the problems faced by the today's gas chromatographer concerned with analysis of free fatty acids are summarized. In terms of column technology self-made OV-1/FFAP mixed phase capillary columns are well suited for adequate tailing — free elution of these polar molecules. Whereas fatty acids having two and more carbon atoms can be analyzed in an underivatized state on acidic capillary columns, the involving of formic acid and dicarboxylic acids cells for deactivation procedures.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"27 1","pages":"469-477"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80997093","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: 3
Zur Wechselwirkung zwischen einer Penicillium-Cellulase und wasserlöslichen cellulosederivaten 盘尼西林蜂箱和水溶性蜂箱之间的互动
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070211
U. Kasulke, B. Philipp, E. Polter
{"title":"Zur Wechselwirkung zwischen einer Penicillium-Cellulase und wasserlöslichen cellulosederivaten","authors":"U. Kasulke, B. Philipp, E. Polter","doi":"10.1002/ABIO.370070211","DOIUrl":"https://doi.org/10.1002/ABIO.370070211","url":null,"abstract":"Employing anionic and non-ionic cellulose ethers, differing in type of substituent and degree of substitution, as substrates, the pH-profile of enzyme activity and the parameter Km and Vmax of the MICHAELIS-MENTEN kinetics have been determined with Penicillium citrioviride cellulase in an homogeneous system. Within rather wide limits, a linear correlation was found between the DS of the substrate and Km or Vmax, respectively. Also the pH-profile was found to depend on DS mainly, being bimodal at higher DS. On the other hand, no significant difference was observed between anionic and non-ionic cellulose ethers of about the same DS with regard to the parameters determined. It is assumed, that substrate-enzyme interaction is governed mainly by the length of non-derivatized chain sequences mainly and not by Coulomb interactions.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"180 1","pages":"147-155"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77315462","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: 2
Comparative trace element and organic growth factor requirements of five hansenula species 五种汉兜草对微量元素和有机生长因子需求的比较
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070205
N. Kamra, M. Madan
{"title":"Comparative trace element and organic growth factor requirements of five hansenula species","authors":"N. Kamra, M. Madan","doi":"10.1002/ABIO.370070205","DOIUrl":"https://doi.org/10.1002/ABIO.370070205","url":null,"abstract":"A comparative response of specific trace elements and organic growth factors for the growth of five Hansenula species (H. anomala, H. beijerinckii, H. ciferrii, H. polymorpha and H. sydowiorum) has been studied. Out of twenty three trace elements tested, Fe, Zn, Mn and Cu were found to be essential for the growth of all yeast species studied here, whereas the rest of the elements exhibited variable essentiality. From fifteen organic growth factors tested, thiamine, biotin, pyridoxine and inositol are the most commonly required growth factors by the yeasts, whereas the rest of the organic growth factors showed variable essentiality. All species of yeasts investigated required different concentrations of trace elements and organic growth factors for their optimum growth. Concentrations higher than the optimum have been found to be inhibitory for the growth of all the yeasts studied.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"36 1","pages":"119-125"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91318721","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: 2
Verbesserung alter biotechnologischer Verfahren 提高老的生物技术技术
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070512
K. Schügerl
{"title":"Verbesserung alter biotechnologischer Verfahren","authors":"K. Schügerl","doi":"10.1002/ABIO.370070512","DOIUrl":"https://doi.org/10.1002/ABIO.370070512","url":null,"abstract":"By the example of the Penicillin G production, it is shown, how the production process can be improved by using pellet suspension instead of highly viscous filamentous mycel. In order to optimize the pellet geometry, dissolved oxygen concentration profiles were measured, and the overall mass transfer resistance was calculated in the pellets; histological investigations were carried out with pellets also. All measurements indicated that the optimal pellet diameter is 400 μm. When using this pellet, the specific power input was reduced from 4–5 kW/m3 to 0.8 kW/m3. The losses during the recovery of Penicillin G can be reduced below 1% by using reactive extraction. The thermodynamics, kinetics and reaction technique of reactive extraction of Penicillin G are also taken into account.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"9 1","pages":"431-439"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76577179","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
Grundzüge der Wissenschaftsgtheorie – Eine Einführung für Mediziner und Pharmazeuten. Stuttgart, New York: Gustav Fischer Verlag, 1986. 190 S., 28 DM 科学理论的基本纲要——医药和制药界的一种介绍。斯图加特纽约古斯塔夫费舍尔出版社，1986年190, 28马克
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070605
M. Prause
{"title":"Grundzüge der Wissenschaftsgtheorie – Eine Einführung für Mediziner und Pharmazeuten. Stuttgart, New York: Gustav Fischer Verlag, 1986. 190 S., 28 DM","authors":"M. Prause","doi":"10.1002/ABIO.370070605","DOIUrl":"https://doi.org/10.1002/ABIO.370070605","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"84 1 1","pages":"506-506"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78974157","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
Selection of distiller's yeasts with particular respect to non‐saccharomyces strains 蒸馏酵母的选择，特别是关于非酵母菌菌株的选择
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070204
K. Laube, J. Wesenberg, P. Lietz
{"title":"Selection of distiller's yeasts with particular respect to non‐saccharomyces strains","authors":"K. Laube, J. Wesenberg, P. Lietz","doi":"10.1002/ABIO.370070204","DOIUrl":"https://doi.org/10.1002/ABIO.370070204","url":null,"abstract":"The investigations demonstrate that in addition to Saccharomyces also strains Candida and Hansenula can be used for ethanol production. Their efficiences are at the standard level and the first phase of fermentation is considerably accelerated with results in suppression of bacterial contamination in cold mashing. In the future efficiency optimisations will be expected based on mixed strain populations as well as on technological improvement. Furthermore, genetic modifications present actually a real prospect to secure “made-to-measure” strains for special processes of corn mash fermentation.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"239 1","pages":"111-118"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76778024","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: 3
Enhanced Formation of β‐Glucosidase by Aspergillus niger VKMF‐2092 in Fed‐Batch Operation with Frequently Intermittent Glucose Addition 黑曲霉VKMF - 2092在频繁间歇添加葡萄糖的间歇操作中增强β -葡萄糖苷酶的形成
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/ABIO.370070613
G. Kerns, O. Okunev, A. Vm, Golovlev El
{"title":"Enhanced Formation of β‐Glucosidase by Aspergillus niger VKMF‐2092 in Fed‐Batch Operation with Frequently Intermittent Glucose Addition","authors":"G. Kerns, O. Okunev, A. Vm, Golovlev El","doi":"10.1002/ABIO.370070613","DOIUrl":"https://doi.org/10.1002/ABIO.370070613","url":null,"abstract":"The wild strain Aspergillus niger VKMF-2092 forms β-glucosidase on the basis of glucose as the sole carbon source. The formation of β-glucosidase is initiated after the glucose concentration in the medium has reached a low level since the formation is subjected to catabolite repression. The β-glucosidase is mainly cell-bound and only released after a longer period. Under non-repressed conditions the total formation of β-glucosidase is not associated with growth. By supplying glucose in a fed-batch-technique, maintaining a low actual glucose concentration in the medium, the formation of β-glucosidase is enhanced in comparison to simple batch fermentation. Using a fed-batch-technique with a frequently intermittent addition of glucose it is possible to increase the formation of β-glucosidase with regard to both productivity and the activity related to the mycelium and the fermentation broth as well. The increase of productivity is about two to four times greater than at constant feed rate of the same overall amount of glucose. The reason for this increase will be discussed below. A method is presented which permits to investigate the influence of the substrate concentration and other parameters on the enzyme formation in short periods of one and the same fermentation run.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"105 1","pages":"535-545"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77250519","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: 10
Electrochemical corrosion testing. with special consideration of practical applications, DECHEMA monographie Vol. 1. Weinheim: VCH Verlagsgesellschaft, 1980. 352 S. 电化学腐蚀测试。特别考虑到实际应用，DECHEMA专著卷1。Weinheim: VCH出版社，1980。352年代。
Acta Biotechnologica Pub Date : 1987-01-01 DOI: 10.1002/abio.370070306
D. Beck
{"title":"Electrochemical corrosion testing. with special consideration of practical applications, DECHEMA monographie Vol. 1. Weinheim: VCH Verlagsgesellschaft, 1980. 352 S.","authors":"D. Beck","doi":"10.1002/abio.370070306","DOIUrl":"https://doi.org/10.1002/abio.370070306","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"23 1","pages":"226-226"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74256541","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
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