| 1. |
-
Arsenic in Geosphere and Human Diseases
- 2010
-
Proceedings (redaktörskap) (refereegranskat)abstract
- The congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for arsenic research aimed at short-term solutions of problems with considerable social impact, rather than only focusing on cutting edge and breakthrough research in physical, chemical, toxicological, medical and other specific issues on arsenic on a broader environmental realm. The congress "Arsenic in the Environment" was first organized in Mexico City (As 2006 ) followed by As 2008 in Valencia, Spain. The Third International Congress As 2010 was held in Tainan, Taiwan from May 17-21, 2010 entitled: "Arsenic in Geosphere and Human Diseases". The session topics comprised:1. Geology + hydrogeology of arsenic;2. Ecological effects: Arsenic in soils, plants and food chain;3. Marine + terrestrial biota;4. Health effects on humans: Epidemiology + biomarkers;5. Toxicological effects;6. Assessment and remediation;7. Analytical methods. Hosting this congress in Taiwan was especially relevant, because the endemic Blackfoot Disease, related to the arsenic uptake from drinking water supplied by artesian wells, was discovered here half a century ago. Since then Taiwan has become an important region specializing in arsenic research. This volume presents the extended abstracts of the congress and will give the latest state of the art knowledge based on current research performed by the global scientific community.
|
|
| 2. |
- Bhattacharya, Prosun, 1962-, et al.
(författare)
-
Arsenic in Soil and Groundwater Environment : Biogeochemical Interactions, Health Effects and Remediation
- 2007
-
Bok (refereegranskat)abstract
- This volume presents the recent developments in the field of arsenic in soil and groundwater. Arranged into nine sections, the text emphasizes the global occurrences of arsenic in the environment, particularly on its source, pathways, behavior, and effects it has on soils, plants, water, animals, and humans. It also covers the diverse issues of arsenic in the mining environment, arsenic emanating from hydrothermal springs, and the geochemical modeling of arsenic adsorption to oxide surfaces. Finally, the text includes different cost effective removal mechanisms of arsenic from drinking water using natural red earth, solar oxidation, and arsenic oxidation by ferrrate.
|
|
| 3. |
- Bhattacharya, Prosun, 1962-, et al.
(författare)
-
Groundwater and Sustainable Development : Problems, Perspectives and Challenges
- 2008
-
Bok (refereegranskat)abstract
- Groundwater is the most important source of domestic, industrial, and agricultural water and also a finite resource. Population growth has created an unprecedented demand for water, with the situation most critical in the developing world, where several million people depend on contaminated groundwater for drinking purposes. Geogenic contaminants, such as arsenic and fluoride at toxic levels, pose major environmental risks and endanger public health. This book is a collection of papers providing a multi-disciplinary overview for scientists and professionals involved in the sustainable development of groundwater resources.
|
|
| 4. |
- Kabay, Nalan, et al.
(författare)
-
The Global Arsenic Problem: Challenges for Safe Water Production
- 2010
-
Bok (refereegranskat)abstract
- 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 sorptive media, ion exchange, and membrane filtration. However, in the most affected regions, large conventional treatment plants may not be appropriate and factors such as cost and acceptability as well as performance must be considered. This book, published in cooperation with leading experts in this field, provides a thorough analysis of the problems, solutions, and possible alternatives to achieve safe water production on a global scale.
|
|
| 5. |
- Khan, MD. Ershad Ullah, 1979-
(författare)
-
Renewables Based Polygeneration for Rural Development in Bangladesh
- 2017
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Despite the country's rural electrification programme, kerosene is the predominant source for lighting, and unsustainable and polluting woody biomass is virtually the only option available for cooking. The rural population also struggles with unsafe drinking water in terms of widespread arsenic contamination of well water. The present work has taken an integrated approach in an attempt to mitigate problems through small-scale polygeneration, a concept linking renewable energy sources to these energy needs via novel energy conversion systems.Anaerobic digesters (AD) for biogas production are promising in the rural setting, and field surveys have identified problems in the construction, maintenance and operation of existing AD, particularly in overall performance of household digesters. Based on these results, a number of operational and technological improvements are suggested for employing digesters in polygeneration units. This study also examines one approach for small-scale, low cost arsenic removal in groundwater through air gap membrane distillation, a thermally-driven water purification technology.Integration of biogas production with power generation and water purification is an innovative concept that lies at the core of feasibility analyses conducted in this work. One of the case studies presents a new concept for integrated biogas based polygeneration and analyzes the techno-economic performance of the scheme for meeting the demand of electricity, cooking energy and safe drinking water of 30 households in a rural village of Bangladesh. The specific technologies chosen for the key energy conversion steps are as follows: plug-flow digester; internal combustion engine; and membrane distillation. One major concern is local feedstock availability for the digester, since a single feedstock is impractical to serve both cooking, lighting and water purification systems. In this circumstance solar PV could be a potential option for integrated hybrid systems.
|
|
| 6. |
|
|
| 7. |
-
Natural Arsenic in Groundwater: Occurrences, Remediation and Management : Proceedings of the Pre-Congress Workshop "Natural Arsenic in Groundwater", 32nd International Geological Congress, Florence, Italy, 18-19 August 2004
- 2005
-
Proceedings (redaktörskap) (refereegranskat)abstract
- Groundwater is an important resource that serves as a backbone of human development. In several regions -mostly in developing countries- groundwater from sedimentary and hard rock aquifers used for drinking are naturally contaminated with arsenic. In different countries in Asia such as eastern India, Bangladesh, Cambodia, China, Nepal, Pakistan, Taiwan, Thailand and Vietnam, the situation of arsenic toxicity is alarming and severe health problems are reported amongst the inhabitants relying on groundwater as sources of water for drinking purposes. Arsenic occurrences in groundwater in Bengal Delta Plain of West Bengal, India and Bangladesh is one of the largest environmental health disaster of the present century, where at least 50 million people is at risk of cancer and other arsenic related diseases due to the consumption of high arsenic groundwater. In these same countries, land and agricultural sustainability is threatened by the use of arsenic contaminated irrigation water. In several Middle- and South-American countries, for example in Argentina, Brazil, Chile and Mexico, high arsenic is reported in natural waters. In Argentina, at least 1.2 million people are affected. Elevated levels of natural arsenic in groundwater due to geogenic sources, is therefore an issue of primary environmental concern, which limits the use of these resources for drinking or other purposes, and hinders the economic and social development. Hence there is need to improve our understanding on the genesis of high arsenic groundwaters from the various aquifers in order to develop strategies of e to improve the socio-economic status of the affected regions.
|
|
| 8. |
|
|
