Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Aerobic Biodegradation Of Surfactants full books in PDF, epub, and Kindle. Read online Aerobic Biodegradation Of Surfactants ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Encarnación Jurado
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Aerobic Biodegradation of Surfactants written by Encarnación Jurado and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerobic Biodegradation of Surfactants.
Author : D.R. Karsa
Publisher : Springer Science & Business Media
ISBN 13 : 9401113483
Total Pages : 269 pages
Book Rating : 4.4/5 (11 download)
Download or read book Biodegradability of Surfactants written by D.R. Karsa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: The awareness and development of 'biodegradable' surfactants pre-dates current pressures by the environmental movement by nearly three decades, wherein a responsible industry mutually agreed to replace 'hard', non-biodegradable com ponents of household detergents by 'soft', biodegradable alternatives, without course to legislation. The only requirement at that time was for surfactants used in detergents to exhibit a 'primary biodegradability' in excess of 80%; this referring to the disap pearance or removal from solution of the intact surface active material as de tected by specified analytical techniques. This proved useful, as observed environmental impacts of surfactants, e.g. visible foam on rivers, are associated with the intact molecule. Test methods for 'primary biodegradability' were eventually enshrined in EU legislation for nonionic surfactants (Directive 821242/EEC, amended 73/404IEEC) and for anionic surfactants (Directive 8212431EEC, amended 73/405IEEC). No approved test methods and resultant legislation have been developed for cationic and amphoteric surfactants to date. The environmental classification of chemical substances, which of course includes surfactants, and associated risk assessment utilises a second criterion 'ready biodegradability'. This may be assessed by a number of methods which monitor oxygen uptake (BOD), carbon dioxide production or removal of dis solved organic carbon (DOC). Some surfactants which comply with the above Detergents Directive are borderline when it comes to 'ready biodegradability'.
Author : Robert Donald Swisher
Publisher : CRC Press
ISBN 13 : 9780824769383
Total Pages : 1120 pages
Book Rating : 4.7/5 (693 download)
Download or read book Surfactant Biodegradation, Second Edition, written by Robert Donald Swisher and published by CRC Press. This book was released on 1986-10-31 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rolando Chamy
Publisher : BoD – Books on Demand
ISBN 13 : 953511154X
Total Pages : 382 pages
Book Rating : 4.5/5 (351 download)
Download or read book Biodegradation written by Rolando Chamy and published by BoD – Books on Demand. This book was released on 2013-06-14 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a collection of different biodegradation research activities where biological processes take place. The book has two main sections: A) Polymers and Surfactants Biodegradation and B) Biodegradation: Microbial Behaviour.
Author : Robert Donald Swisher
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.:/5 (319 download)
Download or read book Surfactant Biodegradation written by Robert Donald Swisher and published by . This book was released on 1970 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surfactants and Their Aerobic Degradation Products written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal tasks of the present work were 1) to develop and validate sensitive substance-specific methods for the quantitative determination of anionic, non-ionic and amphoteric surfactants and their biochemical degradation intermediates in aqueous environmental samples. These methods were based on advanced hyphenated mass spectrometric techniques. 2) to generate aerobic polar biodegradation products of surfactants in a laboratory-scale fixed-bed bioreactor (FBBR), which was run with a surface water-borne biocoenosis to simulate real environmental conditions. 3) to identify and characterize novel metabolites, generated in 2), by various mass spectrometric methods in order to deduce the surfactant degradation pathway in principle as well as to monitor primary and further biodegradation steps. 4) to gather data on the input and fate of surfactants in the aquatic environment under distinct hydrological and climatic conditions by analyzing the parent compounds and their metabolites in wastewaters and surface waters, in part polluted by untreated waste discharges. 5) to pursue the behavior of persistent surfactant metabolites in waterworks preparing drinking water from surface waters and to determine their residues in tap water. 6) to assess deleterious effects of discovered metabolites employing ecotoxicological bioassays. 7) to compare the results obtained from field studies with those from laboratory experiments in order to confirm the environmental relevance of the latter. The selection of target analytes was made taking into account output and novelty on the surfactant market. The substances comprised the detergent ingredients anionic linear alkylbenzene sulfonates (LAS) as the single surfactant with the highest production volume known to yield highly polar metabolites, the two non-ionics alkyl glucamides (AG) and alkyl polyglucosides (APG), as well as the amphoteric surfactant cocamidopropyl betaine (CAPB). In addition, the polymeric dye transfer inhibitor poly(vinyl-
Author :
Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (894 download)
Download or read book Ozone/UV Treatment to Enhance Biodegradation of Surfactants in Industrial Wastewater. CRADA Final Report written by and published by . This book was released on 1996 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new owners of a surfactant manufacturing plant wanted to triple production but were limited by the plant's wastewater treatment capacity. Mass balance calculations indicated that little aerobic biodegradation was occurring in the plant's wastewater treatment system. Literature reviews and laboratory tests confirmed that as much as 60% of the plant's products might resist aerobic biodegradation. Overall chemical losses, both solid and aqueous, were estimated at 3.8% of theoretical. Organic loadings to the wastewater treatment system were 170 kg/d of which 50 kg/d reached the biological treatment system. Pollution prevention measures have allowed a> 20% increase in production levels with a> 30% decrease in effluent volume and no increase in discharge of chemical oxygen demand (COD). A new dissolved air flotation (DAF) system removes 70% of the organic loading. Sludge volumes are lower by an order of magnitude than with the clarifier/drum-filter process it replaced.
Author : Peter Eichhorn
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (516 download)
Download or read book Surfactants and Their Aerobic Degradation Products written by Peter Eichhorn and published by . This book was released on 2001 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Wisniewski
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Aerobic Biological Degradation of Surfactants in Waste Water written by Richard Wisniewski and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Francisco G. Calvo-Flores
Publisher : John Wiley & Sons
ISBN 13 : 3527338764
Total Pages : 528 pages
Book Rating : 4.5/5 (273 download)
Download or read book Emerging Pollutants written by Francisco G. Calvo-Flores and published by John Wiley & Sons. This book was released on 2018-02-20 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: An excellent, concise, and interdisciplinary overview of different classes of emerging pollutants arising, for example, from pharmaceuticals, pesticides, personal care products, and industrial chemicals and their impact on water, soil, and air. Following an introduction to chemical pollutants, with special attention focused on organic compounds and their properties, the book goes on to describe major emerging pollutants grouped according to their applications in different sectors of industrial or economic activity. For each type of compound, the chemical structure, main properties, and source are presented, along with their fate in the environment as pollutants, the latest analytical methods for detection, possible health or ecology consequences, as well as current regulatory laws. New developments, such as nanotechnology as a pollution source, are also included. The book closes with a chapter devoted to conclusions and future perspectives.
Author : Thomas P. Knepper
Publisher : Elsevier
ISBN 13 : 0080548334
Total Pages : 995 pages
Book Rating : 4.0/5 (85 download)
Download or read book Analysis and Fate of Surfactants in the Aquatic Environment written by Thomas P. Knepper and published by Elsevier. This book was released on 2003-08-22 with total page 995 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the fate and behaviour of organic chemicals, such as surfactants, in the environment is a prerequisite for the sustainable development of human health and ecosystems. As surfactants are being produced in huge amounts, it is important to have a detailed knowledge about their lifetime in the environment, their biodegradability in wastewater treatment plants and in natural waters, and their ecotoxicity. Parameters relevant for the assessment of long-term behaviour, such as interactions with hormonal systems need to be understood to avoid unexpected adverse effects to future generations of people and the environment. However, the identification and quantification of commercial surfactants in the environment is made more complicated and cumbersome because they comprise of tens to hundreds of homologues, oligomers and isomers of anionic, nonionic, cationic and amphoteric compounds.The EU-funded PRISTINE project (Priority surfactants and their toxic metabolites in wastewater effluents: An integrated study; ENV4-CT97-0494) provides the basis for the content of this title. It provides policy makers and industry with detailed information on analysis and concentrations of surfactants and their degradation products in the environment.In addition to a general introduction to surfactants, this book comprises a comprehensive variety of analytical techniques, including sample handling, for the analysis of surfactants in the aquatic environment. Readers will find all the necessary information for analyzing the different groups of surfactants, with special emphasis on transformation products. Quality assurance is also reported on in detail. Chapters on toxicity and risk assessment are also included and give a complete perspective on the surfactants problem in the aquatic environment. · Presents the finding of EU-funded research into fate and behaviour of organic chemicals in the environment· Comprises a comprehensive variety of analytical techniques, including sample handling, for the analysis of surfactants in the aquatic environment· Provides relevant information to all groups working in the field of surfactants
Author : R. D. Swisher
Publisher :
ISBN 13 :
Total Pages : 496 pages
Book Rating : 4.:/5 (112 download)
Download or read book Surfactant Biodegradation written by R. D. Swisher and published by . This book was released on 1987 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Krister Holmberg
Publisher : CRC Press
ISBN 13 : 9780203911730
Total Pages : 668 pages
Book Rating : 4.9/5 (117 download)
Download or read book Novel Surfactants written by Krister Holmberg and published by CRC Press. This book was released on 2003-07-03 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively revised and expanded, this timely reference discusses the synthesis, properties, and potential applications of popular and emerging surfactant compounds and systems. This reference reflects current research trends in green surfactants, the production of surfactants using biotechnological methods, and surfactants based on natural buildin
Author : Nico M. van Os
Publisher : Routledge
ISBN 13 : 1351428381
Total Pages : 322 pages
Book Rating : 4.3/5 (514 download)
Download or read book Nonionic Surfactants written by Nico M. van Os and published by Routledge. This book was released on 2017-10-19 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the laboratory and industrial synthesis of nonionic surfactants. Furnishes exhaustive coverage of the most recent advances in nonionic surfactant organic chemistry. Analyzes a novel class of catalysts for the production of surfactants with highly narrow distributions.
Author : Stephen Kenneth Spitzer
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (331 download)
Download or read book The Effects of Advanced Oxidation Pretreatment on the Aerobic Biodegradability of Biorefractory Surfactants written by Stephen Kenneth Spitzer and published by . This book was released on 1995 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Girma Biresaw
Publisher : CRC Press
ISBN 13 : 1439889589
Total Pages : 601 pages
Book Rating : 4.4/5 (398 download)
Download or read book Surfactants in Tribology written by Girma Biresaw and published by CRC Press. This book was released on 2013-03-20 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacture and use of almost every consumer and industrial product rely on application of advanced knowledge in surface science and tribology. These two disciplines are of critical importance in major economic sectors, such as mining, agriculture, manufacturing (including metals, plastics, wood, computers, MEMS, NEMS, appliances), construction, transportation, and medical instruments, transplants, and diagnostic devices. An up-to-date reference with contributions by experts in surface science and tribology, Surfactants in Tribology, Volume 3 discusses some of the underlying tribological and surface science issues relevant to many situations in diverse industries. The tradition of presenting new developments and research that began with the first volume in this groundbreaking series continues in the third volume. Comprising 19 chapters on various aspects of surfactants in tribology—including subjects not covered in previous volumes—this book is presented in four parts: Nanotribology and Polymeric Systems, Biobased and Environmentally Friendly Lubricants and Additives, Tribological Properties of Aqueous and Nonaqueous Systems, and Advanced Tribological Concepts. Topics include tribological properties of nanoparticles, biopolymer friction, environmentally friendly surface-active agents, biolubricants, aqueous mixed surfactant systems, and surfactants in motor oil, drilling fluids, and in electrowetting for MEMS and NEMS. The information in this volume provides a cutting-edge reference connecting the fields of surfactants and tribology as a way forward to novel, enhanced methods of controlling lubrication, friction, and wear. Written by a global team of established authorities, this book reflects the latest developments, highlighting the relevance of surfactants in tribological phenomena in a broad range of industries. It provides a valuable resource for readers working in or entering the fields of tribology and surface science.
Author : Arthur T. Hubbard
Publisher : CRC Press
ISBN 13 : 9780824707576
Total Pages : 1580 pages
Book Rating : 4.7/5 (75 download)
Download or read book Encyclopedia of Surface and Colloid Science - written by Arthur T. Hubbard and published by CRC Press. This book was released on 2002-07-18 with total page 1580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference collects fundamental theories and recent research from a wide range of fields including biology, biochemistry, physics, applied mathematics, and computer, materials, surface, and colloid science-providing key references, tools, and analytical techniques for practical applications in industrial, agricultural, and forensic processes, as well as in the production of natural and synthetic compounds such as foods, minerals, paints, proteins, pharmaceuticals, polymers, and soaps.
