Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants write by Lea Chua Tan. This book was released on 2018-09-03. Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants available in PDF, EPUB and Kindle. 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.
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 - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants write by Lea Chua Tan. This book was released on 2018-09-03. Anaerobic Treatment of Mine Wastewater for the Removal of Selenate and its Co-Contaminants available in PDF, EPUB and Kindle. 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.
Selenium Contamination in Water
Selenium Contamination in Water - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Selenium Contamination in Water write by Pooja Devi. This book was released on 2021-06-21. Selenium Contamination in Water available in PDF, EPUB and Kindle. The contamination of environment and water resources by Selenium (Se) and its oxyanions from various sources are emerging contaminants of significant health and environmental concern. The primary sources include agricultural drainage water, mine drainage, residues from fossil fuels, thermoelectric power plants, oil refineries, and metal ores. Various methods and technologies have been developed which focus on the treatment of selenium-containing waters and wastewater. High concentrations of selenium in water cause various adverse impact to human health, such as carcinogenic, genotoxic, and cytotoxic effects. But in the lower concentrations, it is a useful constituent of the biological system. The range between toxicity and deficiency of selenium is minimal (40 to 400 μg per day), due to its dual nature. Selenium Contamination in Water contains the latest status and information on selenium’s origin, its chemistry and its toxicity to humans. The book represents a comprehensive and advanced reference book for students, researchers, practitioners, and policymakers in working in the field of metalloids, in particular selenium. A special emphasis is given on its geological distribution, monitoring techniques, and remedial technologies. As such, the authors critically analyze the various techniques used for the monitoring and removal of selenium from water. Featuring chapters arranged according to the major themes of the latest research, with specific case-studies from industrial experiences of selenium detection and removal, Selenium Contamination in Water will be particularly valued by researchers, practitioners, and policymakers in working in the field of metalloids including selenium.
Sustainable Plant Nutrition under Contaminated Environments
Sustainable Plant Nutrition under Contaminated Environments - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Sustainable Plant Nutrition under Contaminated Environments write by Qaisar Mahmood. This book was released on 2022-03-10. Sustainable Plant Nutrition under Contaminated Environments available in PDF, EPUB and Kindle. Global industrial growth has resulted in numerous pollutants being introduced into the environment. It has additionally caused decreased water availability for agricultural activity in developing countries, which, in turn, has compelled farmers to use wastewater irrigation. In advanced agricultural systems, farmers are adapting various strategies to achieve a higher yield and thus sustain crop productivity. Consequent to the introduction of contaminants in the environment, soil pollutants have become a critical issue. Selection of disease-resistant, high-yielding crop varieties, and extensive fertilizer applications are quite common among farming communities. This book provides insight into environmental pollutants with special reference to their interference with plant nutrition. It additionally discusses the physiological aspects of plant nutrition. This book enhances current knowledge of the effects of pollutants on plant growth and physiology.
Toxicology of Essential and Xenobiotic Metals
Toxicology of Essential and Xenobiotic Metals - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Toxicology of Essential and Xenobiotic Metals write by João Batista Teixeira da Rocha. This book was released on 2024-11-01. Toxicology of Essential and Xenobiotic Metals available in PDF, EPUB and Kindle. This book explores how metals like cadmium, mercury, lead, aluminium, manganese, and chromium can harm our health, whether through short-term or long-term exposure. It covers symptoms ranging from immediate nausea to long-term issues like Parkinson's and Alzheimer's diseases. Understanding how these metals interact with our bodies is crucial for identifying their harmful effects. The book, divided into 11 chapters, provides straightforward explanations about how these metals affect our health, making it useful for anyone interested in understanding how metals can impact the environment as well as human and animal health.
