Download or read book Performance Assessment and Enrichment of Anaerobic Methane Oxidizing Microbial Communities from Marine Sediments in Bioreactors written by Susma Bhattarai Gautam and published by CRC Press. This book was released on 2018-09-03 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anaerobic oxidation of methane (AOM) coupled to sulfate reduction (AOM-SR) is a biological process mediated by anaerobic methanotrophs (ANME) and sulfate reducing bacteria. It has scientifi c and societal relevance in regulating the global carbon cycle and biotechnological application for treating sulfate-rich wastewater. This research aimed to enhance the recent knowledge on ANME distribution and its enrichment in different bioreactor confi gurations, i.e. membrane bioreactor (MBR), biotrickling fi lter (BTF) and high pressure bioreactor (HPB). Marine sediment from Ginsburg mud volcano, Gulf of Cadiz was used as inoculum in the BTF and MBR. The BTF operation showed the enrichment of ANME in the biofi lm, especially ANME-1 (40%) and ANME-2 (10%). Whereas, the dominancy of ANME-2 and Desulfosarcina aggregates was observed in the MBR. Moreover, HPB study was performed by using highly enriched ANME-2 community from Captain Arutyunov mud volcano. During the study of HPB at different temperature and pressure conditions, the incubation at 10 MPa pressure and 15 ̊C was observed to be the most suitable condition for the studied AOM-SR community. Furthermore, AOM-SR activity in the coastal sediments from marine Lake Grevelingen (the Netherlands) was explored and the microbial community was characterised which was dominated by ANME-3 among known ANME types.

Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.

Download or read book Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co Contaminants written by Lea Chua Tan and published by CRC Press. This book was released on 2018-09-03 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selenium (Se) pollution has led to several cases of severe aquatic ecosystem deterioration due to Se poisoning caused by bioaccumulation over time. However, the removal of selenate (SeO42-) from wastewater streams with co-contaminants has been largely considered as a black box in anaerobic biological systems using mixed consortia. This research aimed at addressing the effect of wastewater characteristics, i.e. co-contaminants such as nitrate (NO3-) and sulfate (SO42-), heavy metals and pH, on the biological reduction of SeO42- and evaluating process integration for Se-laden wastewater treatment with co-contaminants. This study demonstrated that the presence of co-contaminants can actually be beneficial for Se removal provided that the concentrations are carefully monitored and appropriate operating conditions and process configurations are used. The Se removal (total Se and SeO42-) efficiency increased by ~30% in the presence of NO3- and/or SO42- compared to systems with SeO42- alone. Additionally, an integrated process of an ion exchange (IX) column and bioreactors showed improved overall removal capacity for SO42- and total Se. The knowledge and information gained from this research can help in the advancement and application of biological processes, i.e. predicting of reactor performance, solving specific design or practical problems and implementing novel treatment techniques for Se-laden mine wastewater.

Download or read book Optimization of the Electron Donor Supply to Sulphate Reducing Bioreactors Treating Inorganic Wastewater written by Luis Carlos Reyes-Alvarado and published by CRC Press. This book was released on 2018-09-03 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research was to optimize the electron donor supply in sulphate reducing bioreactors treating sulphate rich wastewater. Two types of electron donor were tested: lactate and slow release electron donors such as carbohydrate based polymers and lignocellulosic biowastes. Biological sulphate reduction was evaluated in different bioreactor configurations: the inverse fluidized bed, sequencing batch and batch reactors. The reactors were tested under steady-state, high-rate and transient-state feeding conditions of electron donor and acceptor, respectively. The results showed that the inverse fluidized bed reactor configuration is robust and resilient to transient and high-rate feeding conditions at a hydraulic retention time as low as 0.125 d. The biological sulphate reduction was limited by the COD:sulphate ratio ( 82% either using carbohydrate based polymers or lignocellulosic bio-wastes, in batch bioreactors. The biological sulphate reduction was limited by the hydrolysis-fermentation rate and by the complexity of the slow release electron donors.

Download or read book Biotechnology Applications in Beverage Production written by C. Cantarelli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beverage production is among the oldest, though quantitatively most significant, applications of biotechnology methods, based on the use of microorganisms and enzymes. Manufacturing processes employed in beverage production, origi nally typically empirical, have become a sector of growing economic importance in the food industry. Pasteur's work represented the starting point for technological evolution in this field, and over the last hundred years progress in scientifically based research has been intense. This scientific and technological evolution is the direct result of the encounter between various disciplines (chemistry, biology, engineering, etc.). Beverage production now exploits all the various features of first and second-generation biotechnology: screening and selective im provement of microorganisms; their mutations; their use in genetic engineering methods; fermentation control; control of enzymatic processes, including industrial plants; use of soluble enzymes and immobilized enzyme reactors; development of waste treatment proc esses and so on. Research developments involving the use of biotechnology for the purpose of improving yields, solving quality-related problems and stimulating innovation are of particular and growing interest as far as production is concerned. Indeed, quality is the final result of the regulation of microbiological and enzymatic processes, and innovation is a consequence of improved knowledge of useful fermentations and the availability of new ingredients. The Council of Europe's sponsorship of the work which led to the contributions to this volume is clear evidence of the growing need for adequate information about scientific and technological progress.

Download or read book Vocabulaire du g nie enzymatique written by Edgard Delvin and published by Canadian Government Publishing. This book was released on 1993 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to provide a specialized public with up-to-date terminology, this vocabulary builds on a nucleus of basic terms used in industrial enzyme production, to which have been added terms concerned with recent applications and related subjects. Our objective was to list all terms required to understand enzyme engineering and to explain their meaning by means of contexts and definitions. We also have added some self-explanatory terms which are simply listed with their equivalents.

Download or read book Conf rences Les 16 17 Et 18 Septembre 1991 written by MEND (Canada) and published by MEND, 1991-[1992]. This book was released on 1991 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Civil Engineering written by and published by . This book was released on 2001 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aplicaciones de la Biotecnologia en la Sanidad Y la Produccion Animal written by A. A. MacKenzie and published by . This book was released on 2005 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anaerobic Treatment and Resource Recovery from Methanol Rich Waste Gases and Wastewaters written by Tejaswini Eregowda and published by CRC Press. This book was released on 2019-08-20 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methanol is an important volatile organic compound (VOC) present in the gaseous and liquid effluents of process industries such as pulp and paper, paint manufacturing and petroleum refineries. An estimated 65% of the total methanol emission was from the Kraft mills of the pulp and paper industries. The effect of selenate, sulfate and thiosulfate on methanol utilization for volatile fatty acids (VFA) production was individually examined in batch systems. Gas-phase methanol removal along with thiosulfate reduction was carried out for 123 d in an anoxic BTF. To examine the gas-phase methanol removal along with selenate reduction, another anoxic biotrickling filter (BTF) was operated for 89 d under step and continuous selenate feeding conditions. For the study on liquid-phase methanol, acetogenesis of foul condensate (FC) obtained from a chemical pulping industry was tested in three upflow anaerobic sludge blanket (UASB) reactors operated at 22, 37 and 55 oC for 51 d. The recovery of VFA was explored through adsorption studies using anion exchange resins in batch systems. The adsorption capacity of individual VFA on Amberlite IRA-67 and Dowex optipore L-493 was examined by fitting the experimental data to adsorption isotherms and kinetic models. A sequential batch process was tested to achieve selective separation of acetic acid from the VFA mixture.

Download or read book Metal Removal and Recovery from Mining Wastewater and E waste Leachate written by Suthee Janyasuthiwong and published by CRC Press. This book was released on 2020-02-18 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal contamination in the environment is a persisting global issue. The metal reservoirs in the earth have declined due to society’s needs and due to uncontrolled mining activities. Therefore, the idea to recover metals from waste streams has emerged. In this thesis, cost competitive technologies such as adsorption using agro-wastes and precipitation using an inverse fluidized bed (IFB) reactor were investigated, with special emphasis on the recovery of base metals. Groundnut shell showed good potential for metal (Cu, Pb and Zn) removal. From artificial neural network modeling, the performance of the sulfate reducing bacteria (SRB) was found to be strongly pH dependent; the removal efficiency of Cu and Zn in the IFB at pH 5.0 was >97%. Electronic waste is a good candidate as secondary metal resource. The recovery of Cu from computer printed circuited boards (PCBs) using biogenic sulfide precipitation was investigated as well. Using this technology, Cu could be recovered at ~0.48 g Cu/g PCBs.

Download or read book Wine Microbiology and Biotechnology written by Graham H. Fleet and published by CRC Press. This book was released on 1993-01-01 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wine Microbiology and Biotechnology presents developments in fermentation technology, enzyme technology, and technologies for the genetic engineering of microorganisms in a single volume. The book emphasizes the diversity of microorganisms associated with the winemaking process, and broadens the discussion of winemaking to include more modern concepts of biotechnology and molecular biology. In each chapter, recognized authorities in their field link the scientific fundamentals of microbiology, biochemistry, and biotechnology to the practical aspects of wine production and quality. They also provide relevant historical background and offer directions for future research.

Download or read book Can J Microbiol written by and published by . This book was released on 2011 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bioreactors Downstream Processing Process and Reactor Modelling Bioprocesses written by Dieter Behrens and published by Wiley-VCH. This book was released on 1989-04-20 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trade marks Journal written by and published by . This book was released on 2000 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computerized Control Systems in the Food Industry written by Mittal and published by Routledge. This book was released on 2018-02-19 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the fundamentals and the latest advances in computerized automation and process control, control algorithms, and specific applications essential food manufacturing processes and unit operations. This text highlights the use of efficient process control to convert from batch to continuous operation and enhance plant sanitation. It compares both established and innovative control schemes.

Download or read book New Insights into Membrane Science and Technology Polymeric and Biofunctional Membranes written by Dibakar Bhattacharyya and published by Elsevier. This book was released on 2003-05-23 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane techniques provide a broad science and technology base. Although there are several books in the traditional membrane field, there is a great need for a highly comprehensive book. This refereed book covers materials from highly respected researchers. This title is highly multidisciplinary in nature and should be extremely valuable to scientists and engineers involved in a variety of activities. Students and faculty members around the world will find this title to be an excellent reference book. - Invited contributions from leading researchers in the field - Coverage of topic is of value to scientists/engineers working in a variety of related fields [separations/reactions, advanced biofunctional materials, contactor designs] - Aims to fill market gap for a highly comprehensive book containing advances in both synthetic and biofunctional/bimimetic membranes