Arsenic Treatability Options And Evaluation Of Residuals Management Issues

Focuses on the application of membrane technologies in removing toxic metals\metalloids from water. Particular attention is devoted to the removal of arsenic, uranium, and fluoride. These compounds are all existing in the earth’s crust at levels between two and five thousands micrograms per kg (parts per million) on average and these compounds can be considered highly toxic to humans, who are exposed to them primarily from air, food and water. In order to comply with the new maximum contaminant level, numerous studies have been undertaken to improve established treatments or to develop novel treatment technologies for removing toxic metals from contaminated surface and groundwater. Among the technologies available, applicable for water treatment, membrane technology has been identified as a promising technology to remove such toxic metals from water. The book describes both pressure driven (traditional processes, such as Nanofiltration, Reverse Osmosis, Ultrafiltration,etc) and more advanced membrane processes (such as forward osmosis, membrane distillation, and membrane bio-reactors) employed in the application of interest. Key aspect of this book is to provide information on both the basics of membrane technologies and on the results depending on the type of technology employed.

This book contains up-to-date information and findings in research on the evaluation, treatment, reusability, and development of wastewater in India. The book covers the assessment for drinking water, including membrane filtration, supervision, and evaluation of wastewater, environmental pollution control, wastewater treatment and recycling, advanced bioremediation techniques and wastewater's impact on India. With this wide range of treatment and technologies of wastewater, this book is a source of invaluable information to guide Indian policy planners and makers to move forward to achieve the Sustainable Development Goal 6.

This is the second of two volumes that presents the results of a cooperative research effort between industry, academia, utilities to evaluate and demonstrate the treatment effectiveness of a wide range of technologies for arsenic removal. (Volume 1; ISBN: 1-58321-310-4; published Feb 2004) This volume focused on larger-scale in-situ demonstration testing of the major technologies reviewed in Volume 1, plus several additional technologies. Objectives were to describe the underlying chemical and physical controls over arsenic removal, consider the operational performance parameters and anticipate where improvements might occur. Sponsored by Arsenic Research Partnership, AWWRF, USEPA, and ACWA.

Accompanying CD-ROM includes Excel document "Arsenic adsorbent design and costing tool".

The most talked about metalloid in the modern world, arsenic affects the liver, kidney, and lungs; leads to cardiovascular diseases, cancer, and diabetes; and may cause blindness with long-time exposure. With naturally occurring arsenic boosted by mining and other industrial processes contaminating soil and drinking water, arsenic toxicity is a maj