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| Author | : Thomas Lester Yohe |
| Publisher | : |
| Total Pages | : 612 |
| Release | : 1982 |
| Genre | : Carbon, Activated |
| ISBN | : |
| Author | : Ervin Orlandini |
| Publisher | : Routledge |
| Total Pages | : 184 |
| Release | : 2018-12-19 |
| Genre | : Science |
| ISBN | : 1351425307 |
This research aimed to identify and understand mechanisms thar underlie the beneficial effect of ozonation on removal of pesticides and other micropollutants by Granular Activated Carbon (GAC) filtration. This allows optimization of the combination of these two processes, termed Biological Activated Carbon filtration. The study concluded that ozonation significantly improves removal of atrazine by GAC filtration not only due to the wellknown effect of oxidation of atrazine, but also due to the effect of partical oxidation of Background Organic Matter (BOM) present in water. Ozone-induced oxidation of BOM was found to improve adsorption of atrazine in GAC filters. Biodegradation of atrazine in these filters wasnot demonstrated. Higher GAC's adsorption capacity for atrazine and faster atrazine's mass transfer in filters with ozonated rather than non-ozonated influent were explained as due to ozonated BOM. Both can be attributed to enhanced biodegradability and reduced adsorbsbility of partially ozidated BOM compounds, resulting in their increased biodegradation and decreased adsorption in GAC filters.
| Author | : Joel Mallevialle |
| Publisher | : CRC Press |
| Total Pages | : 384 |
| Release | : 1992-06-23 |
| Genre | : Technology & Engineering |
| ISBN | : 9780873713863 |
Use this new book to solve water treatment problems related to toxicity, taste and odor, and bacteria regrowth. Influence and Removal of Organics in Drinking Water presents the latest advances in oxidation technologies, ozonation, membrane technology, micropollutant removal, and filtration processes. Fundamental aspects of coagulation, flocculation, adsorption, ozonation, preozonation, and granular activated carbon are discussed. Filtration methods covered include biological filtration, membrane filtration, and ultrafiltration. The book will provide a useful reference for water treatment plant managers and operators, water engineers, water supply managers, and consultants.
| Author | : Neil M. Ram |
| Publisher | : CRC Press |
| Total Pages | : 578 |
| Release | : 1990-02-26 |
| Genre | : Technology & Engineering |
| ISBN | : 9780873711234 |
Significance and Treatment of Volatile Organic Compounds in Water Supplies reviews EPA-approved analytical methods for VOC analysis, QA/QC, data quality objectives and limits of detection. It covers current methods for the assessment of health effects, including toxicity and carcinogenicity. If you only purchase one book on VOCs-this should be it. Leading authorities present the latest essential information on VOCs in drinking water. This book will be a valuable resource to personnel involved with VOC contamination, treatment, costs, and regulation.
| Author | : |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 1979 |
| Genre | : Drinking water |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 916 |
| Release | : 1984 |
| Genre | : Drinking water |
| ISBN | : |
| Author | : Ferhan Cecen |
| Publisher | : John Wiley & Sons |
| Total Pages | : 409 |
| Release | : 2011-09-19 |
| Genre | : Science |
| ISBN | : 3527639454 |
This monograph provides comprehensive coverage of technologies which integrate adsorption and biological processes in water and wastewater treatment. The authors provide both an introduction to the topic as well as a detailed discussion of theoretical and practical considerations. After a review of the basics involved in the chemistry, biology and technology of integrated adsorption and biological removal, they discuss the setup of pilot- and full-scale treatment facilities, covering powdered as well as granular activated carbon. They elucidate the factors that influence the successful operation of integrated systems. Their discussion on integrated systems expands from the effects of environmental to the removal of various pollutants, to regeneration of activated carbon, and to the analysis of such systems in mathematical terms. The authors conclude with a look at future needs for research and develoment. A truly valuable resource for environmental engineers, environmental and water chemists, as well as professionals working in water and wastewater treatment.
| Author | : Samuel D. Faust |
| Publisher | : Elsevier |
| Total Pages | : 522 |
| Release | : 2013-10-22 |
| Genre | : Technology & Engineering |
| ISBN | : 148316263X |
Adsorption Processes for Water Treatment discusses the application of adsorption in water purification. The book is comprised of 10 chapters that detail the carbon and resin adsorptive processes for potable water treatment. The text first covers the elements of surface chemistry and then proceeds to discussing adsorption models. Chapter 3 tackles the kinetics of adsorption, while Chapter 4 deals with batch systems and fixed fluid beds. Next, the book talks about the physical and chemical properties of carbon. The next two chapters discuss the adsorption of organic compounds and the removal of inorganic compounds, respectively. The eighth chapter presents operational, pilot plant, and case studies. Chapter 9 discusses the biological activated carbon treatment of drinking water, and Chapter 10 covers the adsorption of macroreticular resins. The book will be of great use to both researchers and professionals involved in the research and development of water treatment process.
| Author | : Zaid K. Chowdhury |
| Publisher | : American Water Works Association |
| Total Pages | : 353 |
| Release | : 2013 |
| Genre | : Technology & Engineering |
| ISBN | : 1583219072 |
"Many books have been written about granular activated carbon. Some focus on the theory of performance and removal mechanisms while others focus on design features. This book focuses on solutions. It describes the challenges facing water providers to provide safe water that is acceptable to their customers, utility experiences using activated carbon, activated carbon applications, and design and procurement approaches. The appendices include detailed case studies and a life-cycle assessment demonstrating favorable sustainability considerations for activated carbon when compared to other treatment technologies. Never before has all of this information been together in one location. The what, why, and how of activated carbon are connected in this book and demonstrate why this treatment technology has maintained its status as an integral treatment technology in the quest for pure water over millennia"--
| Author | : Harsh Satishbhai Ashani |
| Publisher | : |
| Total Pages | : 108 |
| Release | : 2017 |
| Genre | : Carbon |
| ISBN | : |
Activated carbon has been used for decades to remove organics from water at large scale in municipal water treatment as well as at small scale in Point of Use (POU) and Point of Entry (POE) water treatment. This study focused on Granular Activated Carbon (GAC) and activated Carbon Block (CB). This thesis has three related elements for organics control in drinking water. First, coagulation chemistry for Alum and Aluminum Chlorohydrate (ACH) was optimized for significant organics removal to address membrane fouling issue at a local municipal water treatment plant in Arizona. Second, Rapid Small Scale Column Tests were conducted for removal of Perfluorinated compounds (PFC). PFC were present in groundwater at a local site in Arizona at trace levels with combined concentration of Perfluorooctaneoic Acid (PFOA) and Perfloorooctanesulfonic Acid (PFOS) up to 245 ng/L. Groundwater from the concerned site is used as drinking water source by a private utility. PFC Removal was evaluated for different GAC, influent concentrations and particle sizes. Third, a new testing protocol (Mini Carbon Block (MCB)) for bench scale study of POU water treatment device - specifically carbon block filter - was developed and evaluated. The new bench scale decreased the hydraulic requirements by 60 times approximately, which increases the feasibility to test POU at a lab scale. It was evaluated for a common POU organic contaminant: chloroform, and other model contaminants. 10 mg/L of ACH and 30 mg/L of Alum with pH adjustment were determined as optimal coagulant doses. Bituminous coal based GAC was almost three times better than coconut shell based GAC for removing PFC. Multiple tests with MCB suggested no short circuiting and consistent performance for methylene blue though chloroform removal tests underestimated full scale carbon block performance, but all these tests create a good theoretical and practical fundamental for this new approach and provides directions for future researchers.
