Selenium in the Environment
Selenium in the Environment

Author: W.T. Frankenberger Jr.

Publisher: CRC Press

Published: 1994-06-10

Total Pages: 477

ISBN-13: 1482293439

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Discusses the biochemical and geological cycling of selenium (Se), its worldwide distribution, and the factors controlling its fate and transport within and between major environmental media, presenting a global assessment of selenium's complex environmental behaviour. The focus of this work is upon Se management and remediation strategies.

Trace Elements as Contaminants and Nutrients
Trace Elements as Contaminants and Nutrients

Author: M. N. V. Prasad

Publisher: John Wiley & Sons

Published: 2008-08-20

Total Pages: 675

ISBN-13: 0470355093

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Access state-of-the-art research about trace element contamination and its impact on human health in Trace Elements as Contaminants and Nutrients: Consequences in Ecosystems and Human Health. In this ground-breaking guide, find exhaustive evidence of trace element contamination in the environment with topics like the functions and essentiality of trace metals, bioavailability and uptake biochemistry, membrane biochemistry and transport mechanisms, and enzymology. Find case studies that will reinforce the fundamentals of mineral nutrition in plants and animals and current information about fortified foods and nutrient deficiencies.

Environmentally Friendly (Bio)Technologies for the Removal of Emerging Organic and Inorganic Pollutants from Water
Environmentally Friendly (Bio)Technologies for the Removal of Emerging Organic and Inorganic Pollutants from Water

Author: Eldon R. Rene

Publisher: IWA Publishing

Published: 2019-08-15

Total Pages: 230

ISBN-13: 1789061016

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This book highlights the impacts of emerging pollutants (both organic and inorganic) in water bodies and the role and performances of different water and wastewater treatment approaches that are presently being employed in the field of environmental engineering. Some of these approaches are focused on ‘end-of-pipe’ treatment, while most of these approaches are focused on the application of novel physic-chemical and biological techniques for wastewater treatment and reuse. The goal of this book is to present the emerging technologies and trends in the field of water and wastewater treatment. The papers in this book provide clear proof that environmentally friendly (bio)technologies are becoming more and more important and playing a critical role in removing a wide variety of organic and inorganic pollutants from water. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants
Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants

Author: Lea Chua Tan

Publisher: CRC Press

Published: 2018-09-03

Total Pages: 228

ISBN-13: 0429828403

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Selenium (Se) pollution has led to several cases of severe aquatic ecosystem deterioration due to Se poisoning caused by bioaccumulation over time. However, the removal of selenate (SeO42-) from wastewater streams with co-contaminants has been largely considered as a black box in anaerobic biological systems using mixed consortia. This research aimed at addressing the effect of wastewater characteristics, i.e. co-contaminants such as nitrate (NO3-) and sulfate (SO42-), heavy metals and pH, on the biological reduction of SeO42- and evaluating process integration for Se-laden wastewater treatment with co-contaminants. This study demonstrated that the presence of co-contaminants can actually be beneficial for Se removal provided that the concentrations are carefully monitored and appropriate operating conditions and process configurations are used. The Se removal (total Se and SeO42-) efficiency increased by ~30% in the presence of NO3- and/or SO42- compared to systems with SeO42- alone. Additionally, an integrated process of an ion exchange (IX) column and bioreactors showed improved overall removal capacity for SO42- and total Se. The knowledge and information gained from this research can help in the advancement and application of biological processes, i.e. predicting of reactor performance, solving specific design or practical problems and implementing novel treatment techniques for Se-laden mine wastewater.