Search Results for environmental-technologies-to-treat-selenium-pollution

This book may serve both as an advanced textbook for undergraduate and graduate students majoring in environmental sciences, technology or engineering as well as a handbook for tertiary educators, researchers, professionals and policy ...

Author: Piet Lens

Publisher: IWA Publishing

ISBN: 1789061040

Category: Science

Page: 400

View: 977

Selenium contamination of air, aquatic environments, soils and sediments is a serious environmental concern of increasing importance. Selenium has a paradoxical feature in bringing about health benefits under the prescribed level, but only a few fold increase in its concentration causes deleterious effects to flora and fauna, humans and the environment. Environmental Technologies to Treat Selenium Pollution: principles and engineering: - presents the fundamentals of the biogeochemical selenium cycle and which imbalances in this cycle result in pollution. - overviews chemical and biological technologies for successful treatment of selenium contaminated water, air, soils and sediments. - explores the recovery of value-added products from selenium laden waste streams, including biofortication and selenium based nanoparticles and quantum dots. This book may serve both as an advanced textbook for undergraduate and graduate students majoring in environmental sciences, technology or engineering as well as a handbook for tertiary educators, researchers, professionals and policy makers who conduct research and practices in selenium related fields. It is essential reading for consulting companies when dealing with selenium related environmental (bio)technologies.
2021-08-15 By Piet Lens

Environmental Chemistry Letters 13 (1): 89–96. Staicu, L.C., Hullebusch, E.D.V., Rittmann, B.E., and Lens, P.N.L. (2017). Industrial selenium pollution: sources and biological treatment technologies. In: Bioremediation of Selenium ...

Author: Pooja Devi

Publisher: John Wiley & Sons

ISBN: 9781119693543

Category: Technology & Engineering

Page: 432

View: 577

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.
2021-05-12 By Pooja Devi

Selenium hyperaccumulation in plants. In: Lens, P.N.L., Pakshirajan, K. (Eds.), Environmental Technologies to Treat Selenium Pollution: Principles and Engineering. IWA Publishing, London, UK, pp. 245À264. Loneragan, J.F., 1968.

Author: Zed Rengel

Publisher: Academic Press

ISBN: 9780323853521

Category: Science

Page: 817

View: 199

Marschner’s Mineral Nutrition of Plants, Fourth Edition presents sections on the uptake and transport of nutrients in plants, root-shoot interactions, the role of mineral nutrition in yield formation, stress physiology, water relations, functions of mineral nutrients and contribution of plant nutrition to nutritional quality and global nutrition security of human populations. Other sections focus on the effects of external and internal factors on root growth, rhizosphere chemistry and biology, and nutrient cycling. In addition, this updated edition includes color figures and a new chapter on the impacts of climate change on soil fertility and crop nutrition. An understanding of the mineral nutrition of plants is of fundamental importance in both basic and applied plant sciences. The fourth edition of this book retains the aim of the first in presenting the principles of mineral nutrition in the light of current advances. Offers new content on the relationship between climate change, soil fertility and crop nutrition Keeps overall structure of previous editions Includes updates in every chapter on new developments, ideas and challenges
2022-12-09 By Zed Rengel

The essential toxin: The changing perception of selenium in environmental sciences. Sci. Total Environ. ... Selenium: Environmental significance, pollution, and biological treatment technologies. Biotechnol. Adv. 34, 886-907.

Author: Lea Chua Tan

Publisher: CRC Press

ISBN: 9780429828409

Category: Science

Page: 247

View: 761

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.
2018-09-03 By Lea Chua Tan

Literature Review of Environmental Toxicity of Mercury, Cadmium, Selenium and Antimony in Metal Mining Effluents (Beak ... Field evaluation of arsenic and selenium removal by iron coprecipitation, Journal of the Water Pollution Control ...

Author: Miroslava Václavíková

Publisher: Springer Science & Business Media

ISBN: 9789048134953

Category: Technology & Engineering

Page: 339

View: 274

Water is essential for life, a strategic resource for every country and population. Its availability and sanitary safety is highly connected with the health and economy status of population. Burden of disease due to polluted water is a major public health problem throughout the world. Many pollutants in water streams have been identified as toxic and harmful to the environment and human health, and among them arsenic, mercury and cadmium are considered as high priority ones. Providing population with safe drinking water became the priority and at the same time a big challenge for the modern society. Many funding agencies in various countries have assigned a high priority to the envir- mental security and pollution prevention. UN, being one of them, launched the “International Decade for Action: Water for life 2005–2015. ” Therefore, today’s political and social climate presents an important opportunity to implement principles of sustainable development and to preserve resources essential for future life. This process requires interdisciplinary approach; it is critically important to stimulate interactions between medical doctors, chemists, physicist, materials scientists, engineers and policy makers, which are already experienced in their specific areas. It is also our ethical obligation to preserve existing water resources and existing eco systems enhancing their biodiversity. The NATO Advanced Research Workshop “Water Treatment Te- nologies for the Removal of High-Toxicity Pollutants” took place on September 13–17, 2008 in Košice, Slovak Republic.
2009-11-24 By Miroslava Václavíková

He, Q. & Yao, K. 2010 Microbial reduction of selenium oxyanions by Anaeromyxobacter dehalogenans. ... Y. V., Hullebusch, E. D. & Lens, P. N. L. 2016 Selenium: environmental significance, pollution, and biological treatment technologies.

Author: Puangrat Kajitvichyanukul

Publisher: IWA Publishing

ISBN: 9781789061239

Category: Science

Page: 242

View: 602

Frontier technology in water treatment and pollutant removal is needed not only for maximizing water reuse but also for the rapid detection of contaminants in the recycled water. The UN announced the years 2018 to 2028 as the ‘International Decade for Action–Water for Sustainable Development’. To realize this mission, innovative and frontier technologies for water treatment and pollutant removal are important components. This book aims to serve as a platform for updating the scientific community with recent progress in this area, covering frontier technologies in analytical technique, physicochemical treatment, chemical treatment, and biological treatment. 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.

Proceedings of Euro-Mediterranean Conference for Environmental Integration (EMCEI-1), Tunisia 2017 Amjad Kallel, Mohamed Ksibi, Hamed Ben Dhia, ... Selenium: environmental significance, pollution, and biological treatment technologies.

Author: Amjad Kallel

Publisher: Springer

ISBN: 9783319705484

Category: Science

Page: 2023

View: 341

This volume includes the papers presented during the 1st Euro-Mediterranean Conference for Environmental Integration (EMCEI) which was held in Sousse, Tunisia in November 2017. This conference was jointly organized by the editorial office of the Euro-Mediterranean Journal for Environmental Integration in Sfax, Tunisia and Springer (MENA Publishing Program) in Germany. It aimed to give a more concrete expression to the Euro-Mediterranean integration process by supplementing existing North-South programs and agreements with a new multilateral scientific forum that emphasizes in particular the vulnerability and proactive remediation of the Euro-Mediterranean region from an environmental point of view. This volume gives a general and brief overview on current research focusing on emerging environmental issues and challenges and its applications to a variety of problems in the Euro-Mediterranean zone and surrounding regions. It contains over five hundred and eighty carefully refereed short contributions to the conference. Topics covered include (1) innovative approaches and methods for environmental sustainability, (2) environmental risk assessment, bioremediation, ecotoxicology, and environmental safety, (3) water resources assessment, planning, protection, and management, (4) environmental engineering and management, (5) natural resources: characterization, assessment, management, and valorization, (6) intelligent techniques in renewable energy (biomass, wind, waste, solar), (7) sustainable management of marine environment and coastal areas, (8) remote sensing and GIS for geo-environmental investigations, (9) environmental impacts of geo/natural hazards (earthquakes, landslides, volcanic, and marine hazards), and (10) the environmental health science (natural and social impacts on Human health). Presenting a wide range of topics and new results, this edited volume will appeal to anyone working in the subject area, including researchers and students interested to learn more about new advances in environmental research initiatives in view of the ever growing environmental degradation in the Euro-Mediterranean region, which has turned environmental and resource protection into an increasingly important issue hampering sustainable development and social welfare.
2017-12-12 By Amjad Kallel

treatment. strategy. Khalida Bloch and Sougata Ghosh 23.1 Introduction Pollution of water bodies and soil by toxic ... Hazardous elements like antimony, arsenic, cadmium, chromium, copper, lead, selenium may enter the environment by ...

Author: Vineet Kumar

Publisher: Elsevier

ISBN: 9780323984850

Category: Technology & Engineering

Page: 584

View: 958

Integrated Environmental Technologies for Wastewater Treatment and Sustainable Development provides comprehensive and advanced information on integrated environmental technologies and their limitations, challenges and potential applications in treatment of environmental pollutants and those that are discharged in wastewater from industrial, domestic and municipal sources. The book covers applied and recently developed integrated technologies to solve five major trends in the field of wastewater treatment, including nutrient removal and resource recovery, recalcitrant organic and inorganic compounds detoxification, energy saving, and biofuel and bioenergy production for environmental sustainability. The book provides future directions to young researchers, scientists and professionals who are working in the field of bioremediation and phytoremediation to remediate wastewater pollutants at laboratory and field scale, for sustainable development. Illustrates the importance of various advanced oxidation processes in effluent treatment plants Describes underlying mechanisms of constructed wetland-microbial fuel cell technologies for the degradation and detoxification of emerging organic and inorganic contaminants discharged in wastewater Highlights the reuse and recycling of wastewater and recovery of value-added resources from wastewater Focuses on recent advances and challenges in integrated environmental technologies, constructed wetland-microbial fuel cell, microbial electrochemical-constructed wetlands, biofilm reactor-constructed wetland, and anammox- microbial fuel cell technology for sustainable development Illustrates the importance of microbes and plants in bio/phytoremediation and wastewater treatment
2022-04-29 By Vineet Kumar

Full scale operation of biological technology for the removal of selenium from FGD wastewaters. Proceeding for the Annual International Water ... Selenium: Environmental significance, pollution, and biological treatment technologies.

Author: Y.V. Nancharaiah

Publisher: CRC Press

ISBN: 9781351857314

Category: Science

Page: 439

View: 719

Biofilms represent the natural living style of microbial communities and play a pivotal role in biogeochemical cycles and natural attenuation. Biofilms can be engineered for biodegradation and biotransformation of organic and inorganic contaminants, for both in situ bioremediation and ex situ treatment in bioreactors. This book focuses on microbial biofilms and their potential technological applications for sustainable development. It covers recent advances in biofilm technologies for contaminant remediation coupled to recovery of resources and serves as a complete reference on the science and technology behind biofilm mediated bioremediation and wastewater treatment.
2019-10-18 By Y.V. Nancharaiah

For the past few years, anthropogenic activities have contributed to ecological contamination, causing an increase in concentration of various heavy metals for example, chromium, selenium, lead, cadmium, mercury, etc.

Author: Ram Naresh Bharagava

Publisher: Springer Nature

ISBN: 9789811513909

Category: Technology & Engineering

Page: 351

View: 499

As we know, rapid industrialization is a serious concern in the context of a healthy environment and public health due to the generation of huge volumes of toxic wastewater. Although various physico-chemical and biological approaches are available for the treatment of this wastewater, many of them are not effective. Now, there a number of emerging ecofriendly, cost-effective approaches utilizing microorganisms (bacterial/fungi/algae), green plants or their enzymes, and constructed wetland treatment systems in the treatment of wastewaters containing pollutants such as endocrine disrupting chemicals, toxic metals, pesticides, dyes, petroleum hydrocarbons and phenolic compounds. This book provides a much-needed, comprehensive overview of the various types of wastewater and their ecotoxicological effects on the environment, humans, animals and plants as well as various emerging and eco-friendly approaches for their treatment. It provides insights into the ecological problems and challenges in the treatment and management of wastewaters generated by various sources.
2020-03-04 By Ram Naresh Bharagava