Review Of Arsenic Removal Technologies For Contaminated Groundwaters PDF Download
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Author | : |
Publisher | : |
Total Pages | : 43 |
Release | : 2003 |
Genre | : |
ISBN | : |
Download Review of Arsenic Removal Technologies for Contaminated Groundwaters Book in PDF, ePub and Kindle
This review was compiled to summarize the technologies currently being investigated to remove arsenic from drinking waters, with a special focus on developing and third-world countries where the problem is exacerbated by flooding and depressed economic conditions. The reason for compiling this report is to provide background material and a description of competing technologies currently described in the literature for arsenic removal. Based on the sophistication and applicability of current technologies, Argonne National Laboratory may develop an improved method based on magnetic particle technology. Magnetic particle sorbents may afford improved reaction rates, facilitate particle-water separation, and offer reusability. Developing countries like Vietnam and Bangladesh cannot afford expensive, large-scale treatments to remove arsenic from drinking waters to acceptable limits (from 50 ppb to 10 ppb, depending on the country). Low-cost, effective technologies that can be readily available at the household or community level are needed to solve the present crisis. Appropriate technologies should meet certain criteria, including the following: The treatment must be applicable over a wide range of arsenic concentrations; It should be easy to use without running water or electricity; and The materials for the treatment should be cheap and readily available, and/or suitable for reuse. Our review of arsenic removal technologies and procedures indicates that iron filings, ferric salts, granular ferric hydroxide, alumina manganese oxide, Aqua-bind., and Kimberlite tailings are potentially low-cost sorbents that can remove arsenic after simple mixing in a relatively short time. However, all these technologies suffer from significant shortcomings. Ferric salts are cheap and very effective at removing arsenic but the reaction rates are slow. Fixed-bed columns make use of activated alumina and iron-coated sands but do not work well with groundwater having high concentrations of iron because iron precipitates in the presence of air, which could clog and foul the column. Synthetic sorbents are highly selective and effective and do not pose a significant waste disposal concern because they are generally non-hazardous. Aqua-bind. is perhaps the most effective synthetic sorbent available for removing arsenic, but it must be mass-produced to realize low cost. Naturally occurring solids are cheap and remove arsenic well; however, the removal rate is often very slow and the solids can harbor bacteria. This report reviews competing technologies for removal of water-borne arsenic to establish a baseline for technology improvements. Specifically, the information in this report will serve as a basis for developing a low-cost separation technology using functionalized magnetic particles to adsorb arsenic and permanent magnets to separate the arsenic-loaded magnetic particles from the cleaned water.
Author | : Sirshendu De |
Publisher | : The Energy and Resources Institute (TERI) |
Total Pages | : 306 |
Release | : 2012-01-01 |
Genre | : Technology & Engineering |
ISBN | : 8179933830 |
Download Arsenic Removal from Contaminated Groundwater Book in PDF, ePub and Kindle
Contamination of groundwater with arsenic is being considered a pervasive and critical issue in recent years. Large areas in India, Bangladesh, South East Asia, and other parts of the world are suffering from this problem. Arsenic Removal from Contaminated Groundwater presents a comprehensive discussion on various important issues, including state-of-the-art arsenic removal technologies, preparation and performance analysis of laterite, and scale-up issues and design of a household filter. It also expounds the potentiality of raw laterite and treated laterite as low-cost arsenic adsorbents. The efficiency of adsorbent capacity is evaluated using real arsenic contaminated groundwater collected from an affected area in West Bengal, India. The topic is an emerging area and most of the work presented has the potential of field application.
Author | : Hemda Garelick |
Publisher | : Springer Science & Business Media |
Total Pages | : 198 |
Release | : 2008-12-10 |
Genre | : Science |
ISBN | : 0387792848 |
Download Reviews of Environmental Contamination Volume 197 Book in PDF, ePub and Kindle
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
Author | : M. Feroze Ahmed |
Publisher | : |
Total Pages | : 298 |
Release | : 2001 |
Genre | : Arsenic |
ISBN | : |
Download Technologies for Arsenic Removal from Drinking Water Book in PDF, ePub and Kindle
Includes some papers with reference to Bangladesh and India.
Author | : Satinder Ahuja |
Publisher | : John Wiley & Sons |
Total Pages | : 420 |
Release | : 2008-10-03 |
Genre | : Science |
ISBN | : 0470369264 |
Download Arsenic Contamination of Groundwater Book in PDF, ePub and Kindle
Provides a viable reference, describing the state-of-knowledge on sources of arsenic contamination in ground water, which affects about 100 million people worldwide. With contributions from world-renowned experts in the field, this book explores developments in the transport kinetics, detection, measurement, seasonal cycling, accumulation, geochemistry, removal, and toxicology of arsenic. Includes compelling case studies describing how arsenic contamination occurs and the devastating effects on the people and environment affected by it.
Author | : Jochen Bundschuh |
Publisher | : CRC Press |
Total Pages | : 208 |
Release | : 2018-10-30 |
Genre | : Nature |
ISBN | : 0203120175 |
Download In-Situ Remediation of Arsenic-Contaminated Sites Book in PDF, ePub and Kindle
Providing an introduction, the scientific background, case studies and future perspectives of in-situ arsenic remediation technologies for soils, soil water and groundwater at geogenic and anthropogenic contaminated sites. The case studies present in-situ technologies about natural arsenic, specifically arsenate and arsenite, but also about organic arsenic compounds. This work covers geochemical, microbiological and plant ecological solutions for arsenic remediation. It will serve as a standard textbook for (post-)graduate students and researchers in the field of Environmental Sciences and Hydrogeochemistry as well as researchers, engineers, environmental scientists and chemists, toxicologists, medical scientists and even for general public seeking an in-depth view of arsenic which had been classed as a carcinogen. This book aims to stimulate awareness among administrators, policy makers and company executives of in-situ remediation technologies at sites contamined by arsenic and to improve the international cooperation on the subject.
Author | : J. Bundschuh |
Publisher | : CRC Press |
Total Pages | : 356 |
Release | : 2005-01-06 |
Genre | : Technology & Engineering |
ISBN | : 1134210809 |
Download Natural Arsenic in Groundwater Book in PDF, ePub and Kindle
Arsenic contamination has become a global phenomenon. With the development of advanced technological detection tools, more geographical areas have been identified. The people most affected are those in the poorer socio-economic groups. The research articles in this book have been contributed by scientists working in areas severely a
Author | : Nalan Kabay |
Publisher | : CRC Press |
Total Pages | : 270 |
Release | : 2010-04-26 |
Genre | : Science |
ISBN | : 0203843398 |
Download The Global Arsenic Problem Book in PDF, ePub and Kindle
A prevalent and increasingly important issue, arsenic removal continues to be one of the most important areas of water treatment. Conventional treatment plants may employ several methods for removing arsenic from water. Commonly used processes include oxidation, sedimentation, coagulation and filtration, lime treatment, adsorption onto sorptiv
Author | : Peter Ravenscroft |
Publisher | : John Wiley & Sons |
Total Pages | : 625 |
Release | : 2011-07-26 |
Genre | : Medical |
ISBN | : 1444355465 |
Download Arsenic Pollution Book in PDF, ePub and Kindle
Arsenic Pollution summarizes the most current research on the distribution and causes of arsenic pollution, its impact on health and agriculture, and solutions by way of water supply, treatment, and water resource management. Provides the first global and interdisciplinary account of arsenic pollution occurrences Integrates geochemistry, hydrology, agriculture, and water supply and treatment for the first time Options are highlighted for developing alternative water sources and methods for arsenic testing and removal Appeals to specialists in one discipline seeking an overview of the work being done in other disciplines
Author | : Vaseashta, Ashok |
Publisher | : IGI Global |
Total Pages | : 728 |
Release | : 2022-03-11 |
Genre | : Science |
ISBN | : 1799873579 |
Download Handbook of Research on Water Sciences and Society Book in PDF, ePub and Kindle
Water supports three basic pillars of our life and survival: safety, security, and sustainability. Hence, it is extremely important to revisit the fundamental characteristics of water in order to discover additional information and the characteristics water has that will help uncover pathways to support the United Nations Sustainable Development Goals (UN SDG) to reduce inequality and make cities and human settlements more inclusive, safe, resilient, and sustainable. Clean water is a critical component to meet such goals. While the fundamental physical and chemical properties of water continue to reveal new aspects, it is critical that we review these properties in the context of several recent applications and by case studies. The Handbook of Research on Water Sciences and Society provides the basics of water science, ways to sense/detect and mitigate contaminants, several regional case studies, and societal aspects of water, including the human right to access water. The book serves as a comprehensive knowledge base on the latest fundamental and applied research and scientific innovations regarding the relationships between society and water resources, safe and sustainable use of water, watershed stewardship, industrial application, and public health awareness. Covering a wide range of topics, it is an ideal resource for researchers, professionals, policymakers, scientists, practitioners, instructors, and students.