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Design And Operation Of Novel Up Flow Bioreactor For Microbial Perchlorate Removal
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Book Synopsis Design and Operation of Novel Up-flow Bioreactor for Microbial Perchlorate Removal by : Brian Hubbard
Download or read book Design and Operation of Novel Up-flow Bioreactor for Microbial Perchlorate Removal written by Brian Hubbard and published by ProQuest. This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Perchlorate is a major groundwater contaminant that is derived mostly from anthropogenic activities. As more sensitive analytical techniques were developed, perchlorate was detected in groundwater throughout the United States. Due to the possibility of adverse health effects, the U.S. Environmental Protection Agency recently set the perchlorate reference dose to 0.0007 mg/kg/day, which corresponds to a drinking water equivalent level of 24.5 ppb. In this research, a novel up-flow microbial reactor was constructed and operated to evaluate its effectiveness on the removal of high perchlorate concentrations in a synthetic wastewater containing acetate (600 mg/L) as the primary source of electrons. Batch kinetic tests were conducted to determine optimum flow rate for perchlorate removal. A flow rate of 150 mL/min sufficiently expanded bacteria matrices and provided the optimum perchlorate removal rate. A fluidized bed reactor (FBR), using granular activated carbon as attachment medium, was operated in parallel to compare the performance of the novel up-flow bioreactor to FBR process. In the fluidized bed reactor, twenty percent bed expansion was achieved at a flow rate of 780 mL/min. Batch perchlorate removal in both reactors followed first order kinetics and the first order removal rate constant for the up-flow reactor (k = -0.0654 min -1) was substantially higher than that of FBR (k = -0.0385 min -1). After batch-feed experiments, both up-flow bioreactor and FBR were modified for continuous treatment of synthetic wastewater containing 100 mg/L perchlorate and 600 mg/L acetate. The systems were operated at hydraulic retention times (HRT) of 22, 15, 11 and 6 hours and daily influent and effluent perchlorate concentrations were measured to determine removal efficiencies. Complete removal of perchlorate was achieved with both systems at HRT of 22, 15, and 11 hours. Significant breakthrough of perchlorate occurred at HRT of six hours in the up-flow bioreactor. Breakthrough also occurred at six hours HRT for the fluidized bed reactor, but the effluent perchlorate concentration was substantially lower than that from up-flow bioreactor. Our results show that the up-flow bioreactor, operating at 20% the flow rate of an FBR, achieves similar effluent perchlorate concentrations and is a more cost effective treatment alternative.
Book Synopsis Perchlorate Removal in Groundwater by Perchlorate Reductases from the Perchlorate Respiring Bacterium, Perc1ace by : William T. Frankenberger
Download or read book Perchlorate Removal in Groundwater by Perchlorate Reductases from the Perchlorate Respiring Bacterium, Perc1ace written by William T. Frankenberger and published by . This book was released on 2003 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transactions of the American Society of Civil Engineers by : American Society of Civil Engineers
Download or read book Transactions of the American Society of Civil Engineers written by American Society of Civil Engineers and published by . This book was released on 2005 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 29-30 contain papers of the International Engineering Congress, Chicago, 1893; v. 54, pts. A-F, papers of the International Engineering Congress, St. Louis, 1904.
Book Synopsis Innovative Wastewater Treatment & Resource Recovery Technologies: Impacts on Energy, Economy and Environment by : Juan M. Lema
Download or read book Innovative Wastewater Treatment & Resource Recovery Technologies: Impacts on Energy, Economy and Environment written by Juan M. Lema and published by IWA Publishing. This book was released on 2017-06-15 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the 3R concept applied to wastewater treatment and resource recovery under a double perspective. Firstly, it deals with innovative technologies leading to: Reducing energy requirements, space and impacts; Reusing water and sludge of sufficient quality; and Recovering resources such as energy, nutrients, metals and chemicals, including biopolymers. Besides targeting effective C,N&P removal, other issues such as organic micropollutants, gases and odours emissions are considered. Most of the technologies analysed have been tested at pilot- or at full-scale. Tools and methods for their Economic, Environmental, Legal and Social impact assessment are described. The 3R concept is also applied to Innovative Processes design, considering different levels of innovation: Retrofitting, where novel units are included in more conventional processes; Re-Thinking, which implies a substantial flowsheet modification; and Re-Imagining, with completely new conceptions. Tools are presented for Modelling, Optimising and Selecting the most suitable plant layout for each particular scenario from a holistic technical, economic and environmental point of view.
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 2292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book The MBR Book written by Simon Judd and published by Elsevier. This book was released on 2011-04-18 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MBR Book
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water and Wastewater Engineering: Design Principles and Practice, Second Edition by : Mackenzie L. Davis
Download or read book Water and Wastewater Engineering: Design Principles and Practice, Second Edition written by Mackenzie L. Davis and published by McGraw Hill Professional. This book was released on 2019-10-04 with total page 1349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. A Fully Updated, In-Depth Guide to Water and Wastewater Engineering Thoroughly revised to reflect the latest advances, procedures, and regulations, this authoritative resource contains comprehensive coverage of the design and construction of municipal water and wastewater facilities. Written by an environmental engineering expert and seasoned academic, Water and Wastewater Engineering: Design Principles and Practice, Second Edition, offers detailed explanations, practical strategies, and design techniques as well as hands-on safety protocols and operation and maintenance procedures. You will get cutting-edge information on water quality standards, corrosion control, piping materials, energy efficiency, direct and indirect potable reuse, and more. Coverage includes: • The design and construction processes • General water supply design considerations • Intake structures and wells • Chemical handling and storage • Coagulation and flocculation • Lime-soda and ion exchange softening • Reverse osmosis and nanofiltration • Sedimentation • Granular and membrane filtration • Disinfection and fluoridation • Removal of specific constituents • Water plant residuals management, process selection, and integration • Storage and distribution systems • Wastewater collection and treatment design considerations • Sanitary sewer design • Headworks and preliminary treatment • Primary treatment • Wastewater microbiology • Secondary treatment by suspended growth biological processes • Secondary treatment by attached growth and hybrid biological processes • Tertiary treatment • Advanced oxidation processes • Direct and indirect potable reuse
Download or read book Perchlorate written by Baohua Gu and published by Springer Science & Business Media. This book was released on 2006-07-02 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a detailed description of perchlorate chemistry and recent advances in innovative remediation technologies for perchlorate contamination and their pros and cons Additionally, the first book to describe the natural occurrence of perchlorate and its unique isotopic signatures for environmental forensics and its detection in the environment, particularly the real-time analysis using surface enhanced Raman spectroscopy
Download or read book Ion Exchange written by Norman Spencer and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion exchange materials are extremely effective absorbents generally containing some functional groups with insoluble structures, which have high affinity capacities towards the targets among a series of structurally similar ions or ion groups. In recent decades, the various methods used to preparing the absorbents for contaminant removal and resource recycle from environment have been extensively studied under the backgrounds of environment pollution and resource shortages. Molecular imprinting technology (MIT) was developed rapidly as a research hot topic to prepare ion exchange materials with shape memory effects. In consideration of the advantages of molecular imprinted polymers (MIPs), including high adsorption capacities, high selectivity, easy recycle etc., their applications in the separation and concentration of target molecules or ions have been widely explored. This book briefly narrates the fundamentals and preparations of MIPs, and particularly focus on the research advances relevant to human-living environment including water, atmosphere and soil. An overview of the most important applications of the ion exchange method in the treatment of industrial wastewaters which contain heavy metal ions, and the main environmental benefits of this method are highlighted. The most important ion exchangers used in environment remediation processes, including their classification and environmental utilisations, are presented as well. The influence of operating conditions on the ion exchange process is discussed, both from efficiency and mechanism perspectives. Also, the opportunities and challenges, which make that the ion exchange method to be still an important research issue at international level, are reviewed. Other chapters familiarise the reader with innovative practices to develop sustainable water treatment methods; review the use of adsorption materials, including raw biomasses, and ion exchange resins for the treatment of olive mill wastewater; various examples of selective removal of heavy metal ions discharged in an effluent from electroplating plants, metal finishing operations, as well as mining and electronics industries through ion exchange are presented and finally; the principal mechanisms and specific features of the copper ion exchange in alkali silicate glasses is explored.
Book Synopsis Biotechnology and Bioengineering by : Eduardo Jacob-Lopes
Download or read book Biotechnology and Bioengineering written by Eduardo Jacob-Lopes and published by BoD – Books on Demand. This book was released on 2019-11-06 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology and Bioengineering presents the most up-to-date research on biobased technologies. It is designed to help scientists and researchers deepen their knowledge in this critical knowledge field. This solid resource brings together multidisciplinary research, development, and innovation for a wide study of Biotechnology and Bioengineering.
Book Synopsis Current Advances in Anaerobic Digestion Technology by : Marcell Nikolausz
Download or read book Current Advances in Anaerobic Digestion Technology written by Marcell Nikolausz and published by MDPI. This book was released on 2021-03-17 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anaerobic digestion (AD) is one of the oldest biotechnological processes and originally referred to biomass degradation under anoxic conditions in both natural and engineered systems. It has been used for decades to treat various waste streams and to produce methane-rich biogas as an important energy carrier, and it has become a major player in electrical power production. AD is a popular, mature technology, and our knowledge about the influencing process parameters as well as about the diverse microbial communities involved in the process has increased dramatically over the last few decades. To avoid competition with food and feed production, the AD feedstock spectrum has constantly been extended to waste products either rich in recalcitrant lignocellulose or containing inhibitory substances such as ammonia, which requires application of various pre-treatments or specific management of the microbial resources. Extending the definition of AD, it can also convert gases rich in hydrogen and carbon dioxide into methane that can substitute natural gas, which opens new opportunities by a direct link to traditional petrochemistry. Furthermore, AD can be coupled with emerging biotechnological applications, such as microbial electrochemical technologies or the production of medium-chain fatty acids by anaerobic fermentation. Ultimately, because of the wide range of applications, AD is still a very vital field in science. This Special Issue highlights some key topics of this research field.
Book Synopsis Perchlorate in the Environment by : Edward Todd Urbansky
Download or read book Perchlorate in the Environment written by Edward Todd Urbansky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a symposium sponsored by the Environmental Division of the American Chemical Society, Perchlorate in the Environment is the first comprehensive book to address perchlorate as a potable water contaminant. The two main topics are: analytical chemistry (focusing on ion chromatography and electrospray ionization mass spectrometry), and treatment or remediation. Also included are topics such as ion exchange, phytoremediation, bacterial reduction of perchlorate, bioreactors, and in situ bioremediation. To provide complete coverage, background chapters on fundamental chemistry, toxicology, and reulatory issues are also included. The authors are environmental consultants, government researchers, industry experts, and university professors from a wide array of disciplines.
Book Synopsis Advances in Bacterial Electron Transport Systems and Their Regulation by : Robert K. Poole
Download or read book Advances in Bacterial Electron Transport Systems and Their Regulation written by Robert K. Poole and published by Academic Press. This book was released on 2016-04-28 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Microbial Physiology: Advances in Bacterial Electron Transport Systems and Their Regulation, the latest volume in the Advances in Microbial Physiology series, continues the long tradition of topical and important reviews in microbiology, with this latest volume focusing on the advances in bacterial electron transport systems and their regulation. - Contains contributions from leading authorities in the field of microbial physiology - Informs and updates on all the latest developments in the field - Presents a primary focus for this edition on the advances made in bacterial electron transport systems and their regulation
Book Synopsis Advanced Oxidation Processes for Water and Wastewater Treatment by : Simon Parsons
Download or read book Advanced Oxidation Processes for Water and Wastewater Treatment written by Simon Parsons and published by IWA Publishing. This book was released on 2004-03-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The suitability of Advanced Oxidation Processes (AOPs) for pollutant degradation was recognised in the early 1970s and much research and development work has been undertaken to commercialise some of these processes. AOPs have shown great potential in treating pollutants at both low and high concentrations and have found applications as diverse as ground water treatment, municipal wastewater sludge destruction and VOCs control. Advanced Oxidation Processes for Water and Wastewater Treatment is an overview of the advanced oxidation processes currently used or proposed for the remediation of water, wastewater, odours and sludge. The book contains two opening chapters which present introductions to advanced oxidation processes and a background to UV photolysis, seven chapters focusing on individual advanced oxidation processes and, finally, three chapters concentrating on selected applications of advanced oxidation processes. Advanced Oxidation Processes for Water and Wastewater Treatment will be invaluable to readers interested in water and wastewater treatment processes, including professionals and suppliers, as well as students and academics studying in this area. Dr Simon Parsons is a Senior Lecturer in Water Sciences at Cranfield University with ten years' experience of industrial and academic research and development.
Book Synopsis Anaerobic Biotechnology for Bioenergy Production by : Samir Kumar Khanal
Download or read book Anaerobic Biotechnology for Bioenergy Production written by Samir Kumar Khanal and published by John Wiley & Sons. This book was released on 2011-11-18 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anaerobic biotechnology is a cost-effective and sustainable means of treating waste and wastewaters that couples treatment processes with the reclamation of useful by-products and renewable biofuels. This means of treating municipal, agricultural, and industrial wastes allows waste products to be converted to value-added products such as biofuels, biofertilizers, and other chemicals. Anaerobic Biotechnology for Bioenergy Production: Principles and Applications provides the reader with basic principles of anaerobic processes alongside practical uses of anaerobic biotechnology options. This book will be a valuable reference to any professional currently considering or working with anaerobic biotechnology options.
Book Synopsis Biofilms in Wastewater Treatment by : Stefan Wuertz
Download or read book Biofilms in Wastewater Treatment written by Stefan Wuertz and published by IWA Publishing. This book was released on 2003-04-30 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central theme of the book is the flow of information from experimental approaches in biofilm research to simulation and modeling of complex wastewater systems. Probably the greatest challenge in wastewater research lies in using the methods and the results obtained in one scientific discipline to design intelligent experiments in other disciplines, and eventually to improve the knowledge base the practitioner needs to run wastewater treatment plants. The purpose of Biofilms in Wastewater Treatment is to provide engineers with the knowledge needed to apply the new insights gained by researchers. The authors provide an authoritative insight into the function of biofilms on a technical and on a lab-scale, cover some of the exciting new basic microbiological and wastewater engineering research involving molecular biology techniques and microscopy, and discuss recent attempts to predict the development of biofilms. This book is divided into 3 sections: Modeling and Simulation; Architecture, Population Structure and Function; and From Fundamentals to Practical Application, which all start with a scientific question. Individual chapters attempt to answer the question and present different angles of looking at problems. In addition there is an extensive glossary to familiarize the non-expert with unfamiliar terminology used by microbiologists and computational scientists. The colour plate section of this book can be downloaded by clicking here. (PDF Format 1 MB)
