Download or read book Removal of Heavy Metals by Fly Ash written by Chih-Huang Weng and published by . This book was released on 1990 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book REMOVAL OF HEAVY METALS IN WASTE WATER BY USING COAL FLY ASH written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, it is aimed to remove toxic heavy metals in waste water with the help of fly ash from Çayýrhan thermal power plant. The chemical and physical properties (size distribution, specific surface area, porosity, chemical composition, etc.) of fly ash were determined. The experiments were carried out in synthetic waste water containing lead, zinc and copper metals at different concentrations with the addition of fly ash. The effects of metal concentration, agitation time, particle size, ash amount, and pH in the metal removal were examined. With the addition of even very small amount of fly ash, heavy metal removal from waste water was attained at up to 99%. Fly ash particle size has no significant effect on removal of heavy metal ions from solutions. Higher solution pH and longer treatment time were resulted better metal removal. The results also indicated that the main mechanism for metal removal was precipitation due to alkaline characteristics of fly ash and more than 90 % of metals in solutions were removed by precipitation. The pH ranges for maximum metal precipitation were 10-11, 8-10, and 10-11 for copper, zinc, and lead respectively. Very small percentages of adsorbed metal was released during the desorption test.

Download or read book The Use of Fly Ash for the Removal of Heavy Metals from Water written by David Craig Markey and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Clean Coal Technologies written by Rajesh Kumar Jyothi and published by Springer Nature. This book was released on 2021-05-10 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of art of the several advanced approaches to beneficiation of coal. The influence of recent technology attains the advantages of processing coal, purification studies, rheological behavior, and the mineral beneficiation. The experts collected in this volume have contributed significantly to the enrichment in the in depth knowledge not only in context of working knowledge, but also future prospects of clean coal technology.

Download or read book Heavy Metals Removal from Metal Finishing Wastewater by Using Fly Ash and Bottom Ash written by Sukhothai Tejavanija and published by . This book was released on 2002 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coal Fly Ash Beneficiation written by Segun Akinyemi and published by BoD – Books on Demand. This book was released on 2018-01-31 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book deals with various, very significant topics of coal fly ash beneficiation, such as treatment of acid mine drainage with coal fly ash, toxic metal adsorption using coal fly ash, recovery of metals from coal fly ash and phytoreclamation of abandoned acid mine drainage site after treatment with coal fly ash, the status of research in coal fly ash utilization and applications and some other related topics in this growing and increasingly important research area. Overall, coal fly ash beneficiation has come to assume an important role in most areas of waste management research today. Continued growth and emphasis on scientific research is expected in all areas of waste management and conversion of waste to wealth technologies.

Download or read book Removal of Heavy Metals from Municipal Solid Waste Incinerator Fly Ash by an Electrodialytic Process written by Célia Maria Dias Ferreira and published by . This book was released on 2005 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Zeolites from Coal Fly Ash written by Guido Gerard Hollman and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heavy Metal Removal from Water wastewater Using Fly ash Derived Zeolites written by Archibald F. Ankrah and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Leaching of Heavy Metals from Fly Ash Stabilized Soils written by Md Sazzad Bin-Shafique and published by . This book was released on 2002 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contamination of Groundwater by Heavy Metals from the Land Disposal of Fly Ash Technical Progress Report June 1 1977 March 31 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been undertaken on a specific ponded fly ash disposal site to determine the degree of subsurface leaching of various ionic forms, especially heavy metals. The location is the site of the Michigan City generating station of the Northern Indiana Public Service Company, Michigan City, Indiana. The present ash ponding system consists of two primary ash ponds (volume of each 16.5 million gallons) which are loaded alternately, i.e., when one is in service the other is allowed to dry for the removal operation. The ash is sluiced to the ponds in a concentrated slurry. After primary and secondary settling the water is brought back for further ash sluicing. A constant elevation is maintained in the ponds at approximately 31.5 feet above the surface of Lake Michigan. The system cannot be considered closed because of losses due to evaporation and subsurface leaching. The station produces 340 to 400 tons of fly ash per day when operating at full capacity. A typical pond cycle requires six to nine months between removal periods. Observation wells were installed at various locations. Typically, the chemical composition of the groundwater varied with both time in the pond cycle as well as distance from the pond. Heavy metal concentrations decreased rapidly from the rather high levels found in the pond but a smaller peak concentration occurred some 100 meters from the pond after which the concentration decreased to rather low levels. The dominant mechanisms of attenuation are adsorption of metals onto hydrous oxides of iron and manganese and precipitation of various solid phases.

Download or read book Municipal Solid Waste Incinerator Residues written by A.J. Chandler and published by Elsevier. This book was released on 1997-04-09 with total page 1009 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text covers a broad spectrum of topics pertinent to the management of incinerator residues. Background information includes a history of incineration, and the influence of municipal waste composition, incinerator type air pollution control technologies on residue quality. Physical, chemical and leaching characteristics for the various ash streams are described, along with recommended sampling and evaluation methodologies. Residue handling and management options, including, treatment utilisation and disposal are also discussed in detail.

Download or read book Remediation of Heavy Metals in the Environment written by Jiaping Paul Chen and published by CRC Press. This book was released on 2016-11-18 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides in-depth coverage of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends in waste treatment processes. It delineates methodologies, technologies, and the regional and global effects of important pollution control practices. It focuses on toxic heavy metals in the environment, various heavy metal decontamination technologies, brownfield restoration, and industrial, agricultural, and radioactive waste management. It discusses the importance of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury.

Download or read book Contamination of Groundwater by Heavy Metals from the Land Disposal of Fly Ash Final Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Information is provided on laboratory and field research to assess the aquatic effects and extent of release, migration, and attenuation of trace metals from fly ash into subsurface soil environments for a typical disposal regime. Those metals analyzed were arsenic, cadmium, chromium, copper, lead, mercury, nickel, and zinc. Laboratory studies indicated that the major effects of fly ash in water were pH alterations, which could be either acidic or basic, and comparatively high proportions of trace metals released from the ash surface, controlled largely by pH. Field studies confirmed the continued importance of pH in defining the attenuation of the metals by the soil but also suggested that pSO4, ionic strength, and soil chemical parameters, such as iron and manganese content, could not be ignored. Theoretical thermodynamic analysis in concert with field data indicated that both adsorption onto soil phases and precipitation of metal phases occurred, the dominant attenuation mechanism depending upon the specific metal and soil conditions.

Download or read book Chemistry of Trace Elements in Fly Ash written by Kenneth S. Sajwan and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accumulation of large amounts of ash from fossil fuel combustion for electric power plant generation is becoming a major environmental concern in the United States. Furthermore, stringent environmental regulations mandated by the Environmental Protection Agency through the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, as well as state and local environmental regulations may result in even more ash production with subsequent contact with the environment. The concentrations of trace elements in coal residues are extremely variable and depend on the composition of the original coal, conditions during combustion, the efficiency of emission control devices, storage and handling ofbyproducts, and climate. The research papers in this book were presented as a part of the Sixth International Conference on the Biogeochemistry of Trace Elements held at the University of Guelph, Ontario, Canada, from July 29-August 2, 2001. The purpose of this corit'erence was to present current knowledge on the source, pathways, behavior and effects of trace elements in soils, waters, plants and animals. In addition, the book also includes invited research papers from scientists who have done significant research in the area of coal and coal combustion byproducts. All the research papers presented herein have been subjected to peer review.

Download or read book Adsorption of Heavy Metals Onto Fly Ash in the Presence of Ammonia written by Xinjun Teng and published by . This book was released on 2003 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Role of Fly Ash in Heavy Metal Removal from Flue Gas Final Report September 1 1993 August 31 1994 written by and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this work is to study the fundamental phenomena involved in the sorption of trace chalcophilic elements by fly ash at high and medium temperatures. Chalcophiles are the low-boiling trace elements that are volatilized during pulverized coal combustion and are transferred to the gas phase, e.g., As, Pb, Cd and Se. The main focus of this work is investigating the sorption phenomena of a representative chalcophile, arsenic (As) on fly ashes at temperatures representative of the upper-furnace region (850--1200°C) and the economizer section (375--600°C). Arsenic is chosen because it is a highly toxic chalcophile and shows some affinity for fly ash but is also emitted from the stack as vapor and aerosol particles. The two temperature zones have been chosen because most of the dry-sorbent injection technologies are being developed for application in these two regions. Also, various fly ash samples from different sources are being studied because their chemical composition and subsequently their chemical sorption characteristics would show a great deal of variation depending on their source. In the first year of this project, it was proposed to conduct isothermal sorption experiments in a differential reactor system. The first year's work was divided into two phases; namely (1) design, construction, testing and trouble-shooting of the differential reactor assembly and the analytical instrumentation, and, (2) designing experiments and conducting sorption studies in the differential reactor system.