The global dimension of Arsenic in ground- and drinking water Chairman: Tony Appelo Welcome! Why, and what is the problem, some background Introduction.

Slides:

Advertisements

Similar presentations

Introduction to Water Quality Engineering. DRINKING WATER STANDARDS Primary Standards, enforeceable by law are parameters that directly affect human health.

Advertisements

Kristin M. Brown, H.I.T. June 5,  Uranium occurs naturally and is a common contaminant in the environment  Anthropogenic Causes  Weapons Production.

Problem/Challenge hematite in cosmetics Naturally occurring, incidental, and manufactured NPs are of different sizes and nanomorphologies. Which are more.

Arsenic in groundwater- examples from US Superfund sites and Bangladesh Martin Stute, Barnard College & L-DEO (with help from A. Keimowitz)

1 Arsenic Contamination of Bangladesh Paddy Field Soils: Implications for Rice Contribution to Arsenic Consumption Professor ： Pao-Nuan Hsieh,Ph.D. Reporter.

International Conference on Sustainability Science in Asia (ICSS-Asia), 2009 Arsenic in Irrigated Soil and Food Chain Dr. M. Ashraf Ali Professor of Civil.

Treatment of Arsenic in Groundwater EAST HELENA D.W.A.S.W.Daladawatta Dawoud.

Concentration & Solutions – Part 2

Environmental Processes Fundamental processes in soil, atmospheric and aquatic systems 2.i Ion exchange.

Understanding and managing acid mine drainage

Partner for progress Does arsenic, in groundwaters of the compound Rhine-Meuse delta, menace drinking water supply in the Netherlands? IAH -Meeting, Utrecht,

ABSTRACT The 20th most abundant element found in the Earth is Arsenic (As). This element naturally occurs as As (III) and As (V). These two oxidation states.

Inverse Geochemical modeling of groundwater with special emphasis on arsenic Sharanya Shanbhogue Geochemistry 428/628 12/09/2010.

Vermelding onderdeel organisatie June 17, Modeling subsurface iron removal Geochemical modeling of subsurface aeration at Schuwacht Lekkerkerk Harmen.

Microbial Uptake of Arsenic Lara Derchak - Civil Engineering Erin Frey - Chemical Engineering Crystal L. Mattson – Civil Engineering Oxidation and reduction.

Subsurface iron removal for drinking water production: understanding the process and exploiting beneficial side effects ir. Doris van Halem1,2 ir. Weren.

Arsenic Water Pollution in Bangladesh

Arsenic “Because of its sinister, homicidal uses, arsenic became world-renowned as the ‘inheritance powder,’” “What made arsenic such a good homicidal.

29 th International conference SEGH, 8-12 July Toulouse, FRANCE 2013 Health risk estimate for groundwater and soil contamination in the.

Introduction Iron sulfides, in particular, troilite, pyrite and the less crystalline mackinawite have demonstrated effective uptake of As(III) in batch.

POU Arsenic Removal Team DHMO Justin Ferrentino Barry Schnorr Haixian Huang David Harrison.

Arsenic Removal From Well Water in Underdeveloped Countries Trygve Hoff Dr. Harold Walker, Advisor.

Introduction to Superfund

If Fe is left outside it will eventually rust. What causes this redox reaction? Fe changes into Fe 2+ and O 2 changes into OH 1-. Write 2 balanced half.

Climate-Induced Hydrologic and Geochemical Modifications in Alluvial and Coastal Watersheds Ming-Kuo Lee James Saunders Ashraf Uddin Chandana Mitra Li.

Evaluation of a multisurface complexation reactive transport model on field data. Bert-Jan Groenenberg 1, Joris Dijkstra 2, Rob Comans 2,3 1 Alterra Wageningen.

The Effect of Surface Lithology on Arsenic and other Heavy Metals in Surface Water and Groundwater in Mustang Valley, Nepal Himalaya Steven H. Emerman.

Arsenic in Bangladesh A project integrating hydrogeology and geochemistry, and bits and pieces of many other fields I used this topic for a senior capstone.

ARSENIC CONTAMINATION OF WATER IN BANGLADESH SENGE NGALAME MPH 583 DR. WHEELER.

Comparing Indigenous Laterite and Bauxite with Imported Activated Alumina for use in Small-scale Fluoride Adsorption Filters in Rural Northern Ghana Laura.

Ground water contaminated by arsenic in western Bengal basin, West Bengal, India NDSU Geol 628 Geochemistry 2010 Anusha Balangoda.

Almost Everywhere: Naturally Occurring Arsenic in Wisconsin’s Aquifers Madeline Gotkowitz Wisconsin Geological and Natural History Survey.

Course Instructor: Scott Fendorf 301 Green; ; Teaching Assistants: Ben Kocar 325 Green;

Arsenic Treatment Technologies Christopher A. Impellitteri USEPA/ORD/WSWRD/WQMB Water Technologies for Rural Texas Tuesday, December 2, 2003.

Movement of Arsenic in Amon (Monsoon) Rice Plants Cultivated on Arsenic Contaminated Agricultural Fields of Nadia District, West Bengal Presented by: Anil.

0.01corn / soil 0.03husk / soil 0.2stem / soil 5.1root / soil transfer coefficients  intensive accumulation of As in the rhizosphere  restricted transport.

Aquatic Chemistry 367 Civil and Environmental Engineering Meeting time: MWF 11:00-11:50am Meeting room: Abbott Auditorium in Pancoe Pavillion Instructor:

Mike Huffington Dan Montonye North Dakota State University.

What’s the origin of high As concentrations in groundwater? Tony Appelo Hydrochemical Consultant Amsterdam.

Ch.3.  Factors Affecting WQ Geology Climates Geography Plantation/Biological activities Human beings-pollution.

Arsenic in de Dutch subsoil...Introduction... Tony Appelo Welcome! Concentration patterns Introduction of the speakers.

FRC Area 3 Site Bioremediation (August 24, 2003 – August 7, 2005) Tests were performed in two phases: (1) a clean water flush to remove bulk nitrate, Al,

1 Possible causes of high manganese concentrations in Scottish groundwater Sally Homoncik Mountain Environments, Callander, Scotland Alan MacDonald, Brighid.

Arsenic and other Heavy Metals in the Rivers of Nepal Steven H. Emerman, Tara N. Bhattarai, Danda P. Adhikari, Sunendra R. Joshi, Siddhi L. Lakhe, Aimee.

MTCA Science Advisory Board Presentation Establishing Moderate Soil Levels for Arsenic October 23, 2006.

Arsenic Contamination and the Chemical Composition of Groundwater in Bangladesh Peter Ravenscroft.

 Have some ideas about metal concentrations in soils  Get familiar with FDEP Soil Cleanup Target Levels and regulations by different countries  Background.

JYU Applied Geochemistry & Lab Ch.7 Redox Reactions Part 1.

ARSENIC IN GROUNDWATER EXAMPLE Concept Mapping. Concepts Arsenic Health Groundwater Poisoning Tubewells Surface water Release Fe oxides Organic carbon.

Titansorb ® Filter Media for Arsenic removal by Watch ® GmbH.

Arsenic in Drinking Water Presentation Outline Arsenic levels around the world Arsenic in the environment Background levels Health effects Mitigation.

Death in Small Doses: Arsenic Exposure in Cambodia.

INTRODUCTION Cd Usually it combined with other elements such: oxygen, chlorine, or sulfur. Cd 2+ activities in soils is about M. levels of Cd in.

» Discussion with Landowner » Background Research » Permission and Support for Project » Location/Sampling » Methods and Materials » Results » Discussion.

Acid drainage is a persistent environmental problem in many mineralized areas, especially where mining has taken place. Not all drainage, however, is.

Electrochemistry Lesson 6 Balancing Redox Reactions.

Issue: Effects of Mine Reflooding

Figure 6.2 Solution pH as a function of concentration for an acidic salt.

What do cats eat ? They eat … 2A : Unit 8.

Metal + oxygen  metal oxide

Aquatic Chemistry 367 Civil and Environmental Engineering

M. Stute, L. van Geen, J. Graziano, H. Ahsan

Y. Zheng1, M. Stute2,3, L. vanGeen3 1Queens College of CUNY

Groundwater Quality of the Houston Area

Arsenic “Because of its sinister, homicidal uses, arsenic became world-renowned as the ‘inheritance powder,’” “What made arsenic such a good homicidal.

Химиялық алғашқы ұғымдар 8 - сынып

Welcome to Presentation International Business National University, Bangladesh.

Table 5. Water quality A3 well during pumping test

Table 9. Water quality of DiSi- Mudawarra groundwater resources

Data from present research

Presentation transcript:

The global dimension of Arsenic in ground- and drinking water Chairman: Tony Appelo Welcome! Why, and what is the problem, some background Introduction of the speakers

The Global Arsenic Problem Smedley and Kinniburgh, 2002, AG 17, 517

Bangladesh Groundwater DPHE and BGS, 2001

data from: DPHE and BGS, 2001

Bangladesh Standard: 0.05 mg/L. Drink 2 L → 0.1 mg As /day In rice: mg/kg Eat 0.3 kg → 0.1 mg As /day (Kapaj et al., 2006, JESH 41, 2399)

The hydration of Fe-oxide surfaces O O Fe H2OH2O surface site ≡FeOH ≡FeOH + H + ↔ ≡FeOH 2 + ≡FeOH - H + ↔ ≡FeO - Fe 2 O 3 surface

pH = redox forms in water: Arsenate anion, As(5) Arsenic acid, As(3)

Sorption of anions on ferrihydrite PZC

PROGRAM dr Pauline Smedley (British Geol Survey): Arsenic in groundwater – natural sources, mobilisation controls and the question of human influences Prof. dr Marie Vahter (Karolinska Institute): Arsenic in drinking water: threatening the health of millions? Break Tony Appelo: What is the origin of high As concentrations in groundwater? Discussion Closure, drinks, etc.