Finalists 2010

Stockholm Junior Water Prize
Argentina, Australia, Belarus, Canada, Chile, China, Finland, France, Germany,
Ghana, Israel, Italy, Japan, Latvia, Mexico, Netherlands, Norway, Republic ofKorea, Russian Federation, Singapore, Slovak Republic, South Africa, Spain, Sri
Lanka, Sweden, Turkey, Ukraine, United Kingdom, United States and Vietnam

The Stockholm Junior Water Prize
The international Stockholm Junior Water Prize brings together bright young scientists
from around the world to encourage their continued interest in water issues that connect
human and environmental health and sustainable development.

Photo: Exray

In its 14th year, the Stockholm Junior Water Prize has inspired thousands of young people aroundthe world to develop personal interests, undertake academic study, and often pursue careers in
the water or environmental fields. This year, 8,000 pre-university people between 15 and 20
years of age entered into national Stockholm Junior Water Prize competitions in 31 countries.
The finalists at the international Final in Stockholm are the winners of the national competition.
During their time in Stockholm, the international finalists receive an opportunity to participate at
the World Water Week in Stockholm, where they can meet and learn from the present leadersof the global water community and make life-long friendships with international compatriots whoshare a passion for water and science.
The prize includes a USD 5,000 award, and a custom-made blue crystal sculpture craftedby Swedish glass artisans. The Stockholm International Water Institute (SIWI) administers thecompetition, which is sponsored globally by ITT Corporation.

H.R.H. Crown Princess Victoria of Sweden is the Patron of the Stockholm Junior Water Prize, here with the winner of2008 Stockholm Junior Water Prize, Joyce Chai, USA.
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Photo: SIWIThe International Jury
The International Jury includes experts within the field of water who, by committee consensus,
appoint the winner of the international contest. The decision is based on the written report anda short presentation of the display material. The Stockholm Water Foundation Board appoints
the Jury members.
2010 International Jury members are:
Dr. Magnus Enell (Chair), Sweden; Mr. Björn von Euler, USA; Ms. Charlotte de Fraiture, Ghana;
Ms. Linda Kelly, USA; Dr. Piet Lens, Netherlands; Ms. Susana Sandoz, Bolivia; Dr. Fredrik Moberg,
Sweden; Mr. Alex Simalabwi, Sweden and Ms. Helene Brinkenfeldt (Secretary), SIWI, Sweden.
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ARGENTINA
H2: Drinking Water, Energy and Ecology
By Mr. Ruben Alejandro Vedia
Given the scarcity of both drinking water sources and fossil fuels,
and the pollution associated with fuel production, it is necessary tofind economical and clean alternatives to produce potable water andenergy while minimising pollution at the same time. To this end, thecontestant’s experimental laboratory tests mixing unusable wastewaterand sea water in hydrogen production revealed new possibilities for
producing clean, non-fossil fuels, reducing pollution and improving
water quality obtained from sources currently unused.
National Organiser and sponsors: Aidis Argentina, AYSA,ENOHSA, Sudamericana de Aguas, ITT Flygt, Aguas de Santiago, Aguas Santafesinas, Aguas
Cordobesas, EPAS, Agua de los Andes, Agencia de Proteccion Ambiental dela CABA, ERM, Ecopreneur and Enersystem

AUSTRALIA
Artificial Wetlands: Recycling Household Greywater
By Ms. Stephanie Reed
In Australia, there has been encouragement to reuse greywater for
non-potable purposes. However, the quality of this water can be ofconcern. The entry investigates the viability of using artificial wetlands
to treat household greywater before reuse. Research was undertaken and models developedwith overall findings indicating that the use of artificial wetlands may be a feasible solution to
the environmental issues associated with the reuse of greywater.
National Organiser and Sponsors: ITT Water and Wastewater, Allconnex and SA Water (Government ofSouth Australia).

BELARUSThe Usage of Phytoplankton for Testing Water Quality
By Ms. Krystsina Miadzvedzeva
Pollution of rivers due to human activity is increasing every day. Surface water is used for drinking
and other purposes. This is why it is necessary to know the quality of water used. The contestant’s
project represents a method for testing water quality based on information about the phytoplankton
4community. The method is adapted for the use of pupils in schools. It
doesn’t require complex equipment. The validity of the method wasverified through wide field researches.
National Organiser and Sponsors: Republican Ecological Educational Center
FE and Coca-Cola Beverages Belorussiya

CANADA
Novel Biodegradation of Polystyrene
By Mr. Alexandre Allard and Mr. Danny Luong

Photo: Annika Börje, SIWI

Polystyrene (EPS) is an environmental problem threatening marine
life and water quality. Studies show that EPS can leach toxics suchas styrene and bisphenol A into water. A novel biotechnical method
was developed to biodegrade EPS. Three strains of microbes were
processed for adaptation to EPS. The 3 strains were able to biodegrade 69.5% of the EPS mass in 2 weeks by producing enzymes
and biosurfactants. This novel method could be applied to reduce
the amount of EPS in waters.
National Organiser and Sponsors: Atlantic Canada Water Works Association,RÉSEAU Environnement – Quebec, Water Environment Association of Ontario,
Western Canada Water Environment Association, British Colombia Water andWastewater Association, Canadian Water and Wastewater Association and ITT
Water & Wastewater, Canada

CHILE
Aquaponics: An Integrated Biosystem
By Mr. Nicolas Ignacio Aedo Gallegos and Mr. Victor Moran Ojeda
Aquaponics is the symbiotic cultivation of plants and aquatic animals in a recirculating environment, where plants take up water nutrients, reducing the water’s toxicity for the aquatic animal.
Based on this method, the contestant recreated an integrated biosystem where fish and plants(i.e. lettuce) grow and feed together, as organic and nitrogen metabolic waste from fish wasoxidized in a biofilter. This encouraged plant growth and contributed to the overall health of fishby reducing the need for replacement water.
National Organiser and Sponsors: Chilean Chapter of the International Hidrological Programme, National
Water Efficiency from the General Water Directorate, Homecenter Sodimac, Aguas Andinas, Nestle, Colbun,
Duschy, AIDIS, ALHSUD and SOCHID
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CHINA
Novel Soil Remediation Technology for South China
By Ms. Yingxin Li, Mr. Zhaonan Yang and Ms. Wanling Chen
The excess use of fertilisers causes eutrophication of water bodies. The release of substancesand energy is regarded as the focus of this study, which improved the soil carbon-nitrogen ratio
as microbes proliferated and humus accumulated in the test area. The soil structure reinvention
matrix was developed by using the bagasse, cellulose bacterium and azotobacter. Field applications have shown a significant decrease in fertiliser loss and pollution in the water.
National Organiser and Sponsor: ITT China

FINLAND
Analysis of Orthophosphate Concentration in Seawater at Espoonlahti Bay
By Ms. Venla Ruohonen
An entire aquatic ecosystem may perish because of eutrophication caused by phosphates. The
phosphates are present in the bottom sediment of the water body. The rate at which they are
released depend on the amount of oxygen in the water. Thus, it can be hypothesised that thephosphate concentration increases with water depth. The purpose of this essay was to investigate
by spectrophotometric analysis the effect of depth on the phosphate concentration of sea water.
The results did not show correlation between the depth and phosphate concentration.

Photo: Rebecca Löfgren, SIWI

National Organiser and Sponsors: Water Association Finland, The Land and Water Technology Foundation
Finland, Kemira Ltd., Ekokem Ltd., HSY Water and Uponor Finland Ltd

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Photo: Christa Richert

FRANCE“Batikeco” – Development of Treatment Device for Dyeing Workshops in Burkina Faso
By Ms. Justine Ahisai, Mr. Maxime Blettner and Ms. Hélène Walach
For the past 15 years, Louis Vincent High School in France has been engaged in an educational
partnership with the High School of Yako in Burkina Faso. To widen this partnership, the contestants developed a treatment system for effluents from batik dyeing – a possible source of pollution in Yako. Within the framework of a scientific workshop, they compared various treatment
methods. They chose the most suited technology and developed a treatment device to be set
up in Yako during 2011.
National Organiser and Sponsors: Ecology, Energy, Sustainable Development and Marine Department,
ITT France, VEOLIA Water, Seine-Normandie Water Agency, Artois-Picardie Water Agency and Hydroplus

GERMANY
Developing a Device to Measure Cancer Causing Substances in Sediments
By Ms. Dagny Anna Ullmann and Ms. Gotja Schaffrath
The contestants invented an onsite-sampling device to measure cancer causing substances inmarine sediments. The measurement method uses glass fibers with a silicone coating, which
absorbs the contaminants. Compared to the common laboratory measuring methods, the device
provided higher accuracy for measuring data, cut down the time frame and improved the total
cost efficiency. From the results, conclusions can be drawn on how harmful substances areaccumulated in the food chain.
National Organiser and Sponsors: Federal Ministry of Research and Education and ThyssenKrupp AG
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GHANA
Encouraging Local Actions for Improving Water and Sanitation in the Nyameso
Community
By Mr. Theophilus Sagoe and Mr. Raymond Bentum
The project involved educating and raising the awareness of the Nyameso community to takeup local actions to improve their environment and to design a water treatment plant using local
materials for the use of the community (of 1,600 inhabitants). This addressed issues of environmental sustainability and improved the community’s health. It also diversified options for watersupply to rural communities. Tests show that the plant can achieve 100% removal of E. coli andtotal coliforms though further treatment is required to remove ions.
National Organiser and sponsors: Ministry of Water Resources, Works and Housing, Ghana IRC Interantional
Water and Sanitation Centre, West Africa Programme, UNICEF, Ghana and Rapha Development Institute

ISRAEL“Aquastop” – A Device for Detecting and Discontinuing Leakage in Water Supply
Systems
By Mr. Nerya Stroh and Mr. Gal Oren
The team from Israel has developed system to analyse the consumer's average water consumption over a learning period of time. Subsequently, if a great deviation is identified, it alerts
the consumer and gradually disconnects flow. Alternatively, the diagnostic is an unusually
prolonged period of steady consumption. Data can be sent to a nearby computer by wirelesscommunication.
National Organiser and Sponsors: The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University,
The Mellanox Company, Manuel and Raquel Klachky Fund and Water Authority
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I T A LY
Water for Life – Recreating the Natural Water Cycle for Desalination
By Mr. Massimo Costantino, Mr. Granit Feneri and Mr. Andrea Rabbolini
This project aimed to build a desalination plant with low energy impact to counter the lack ofdrinking water. It was designed to recreate the natural cycle in a machine called “della'acqua”
by recovering the condensate. After the initial survey Peltier cells were introduced to increase
production.
National Organiser and Sponsors: Aica, Foist, Sol Group, Miur Patronages of: President of Republic, Presidentof Governement, Minister for Youth, Minister of the European Politics, Minister for Education, Research andthe University, Milan Municipality, Province of Milan, Anipla, CusMiBio, Inaf, Milset Europe, National Museumof Science and Technology and Science and Society for Public

Photo: Jan Lundqvist, SIWI

JAPAN
Bioremediation to Eradicate Water Hyacinth
By Ms. Nana Goshima, Mr. Keisuke Suzuki and Mr. Shuhei Takahashi
Water Hyacinth known as “Blue Devil,” has been reported to cause various adverse effects on aquatic
ecosystems. This investigation indicates that dissolved oxygen is rapidly consumed by heterotrophic
bacteria using dissolved organic matter with amino acids eluted from the water hyacinth and nitrate
is released. It also reveals that gel carriers using aboriginal denitrification rhodobacter isolated fromthe water hyacinth dominated area can remove nitrogen and eradicate the “Blue Devil.”National Organiser and Sponsors: Lion Corporation, CTI Engineering Co., Ltd., Nippon Koei Co., Ltd., Pacific
Consultants Co., Ltd., Tokyo Construction Consultants Co., Ltd., Japan Federation of Construction Contractors
Inc. and Executive Committee of River Day
9L AT V IA
The Quality of Water in the “Getlini” Refuse Site Surroundings
By Ms. Polina Arbuzova and Mr. Andrejs Cesnokovs
In this work the contestants researched how the Baltics’ largest refuse site affects the quality ofwater in nearby reservoirs, which are used by the inhabitants of the surrounding settlements.
During the research, they examined samples of water taken from various reservoirs situated near
Getlini. Examining the samples, they applied a variety of analytical methods, including spectrophotometry, titration, complexometric titration, gravimetry and others.

Photo: SXC

National Organiser and Sponsors: SIA "Rigas udens" and Education Culture and Sports Department of
Riga City Council

MEXICO
Using Human Hair to Separate Lead from Contaminated Water
By José Juan Estrada-Serra
The objective of this project was to remove lead from untreated waste water using human hair.
First, 10 ml of lead acetate solution (0.1%) was added to 7 g of human hair and left to react for
24 hours. In the second stage, the lead acetate was replaced by UWW and worked under thesame condition. The content of lead was measured using potassium iodide (KI). It was concluded
that the lead is retained in the proteins that make up human hair.
National Organisers and Sponsors: Academia Mexicana de Ciencias, la Embajada de Suecia en México,la Academia Mexicana de Ciencias, el Instituto Mexicano de la Juventud, la Comisión Nacional del Agua, la
Universidad Nacional Autónoma de México, la Secretaría de Obras y Servicios del Gobierno del Distrito Federal,
el Colegio de Ingenieros Ambientales de México, la Cámara de Comercio Sueco Mexicana, Alfa Laval S.A.
de C.V., Ericsson Telecom S.A de C.V., Fundación Cola Cola, Grupo Urrea, ITT Water & Wastewater México,
S. de R.L. de C.V., Kemira de México S.A., Sandvik de México S.A. de C.V. and Tetra Pak S.A. de C.V.
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NETHERLANDS
Disinfection of Water by Ozone Radicals
By Ms. Lianne Siemensma, Mr. Wouter van der Wal and Ms. Evelien van Zwol
Many people become ill by drinking contaminated water, or by transporting water in contaminated jerry cans. This research compares three different methods to disinfect water, using radical
particles from hydrogen peroxide, chlorine and ozone. The project team also developed a water
pump that adds radical particles to drinking water, taking into account not only technical aspects,
but also social, financial and economic aspects.
National Organiser and Sponsors: Netherlands Water Partnership, Ministry of Transport, Public Works andWater Management, NWP, Plan Nederland and Partners for Water

N O R WAY
Changing Nutrient Combinations at Skeisvatnet Lake During Fall Turnover
By Ms. Vibeke Aas and Ms. Ingunn Gjærde
Seasonal changes are important for the maintenance of the biological diversity of a lake. During
the fall, changes occur in lakes in terms of temperature and substance composition/combinations. The contestants studied these annual changes in the Skeisvatnet Lake during fall 2009.
The temperatures measured and the collected data showed substantial changes in the nutrient
combinations in the water at different depths of the lake.

Photo: Digital Archive Japan Inc.

National Organiser and Sponsors: Norsk Hydrologiråd, Norsk Vannforening, VA-yngre, Krüger Kaldnes, Bkk,
Statkraft, NVE and Godt Vann Drammensregionen

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Photo: Vaughan Willis

REPUBLIC OF KOREA
Producing Energy with Household Wastewater
By Mr. Min Choi and Ms. Harry Kim
While looking at the flow of wastewater through a sewage system in household sinks, the contestants thought it was a waste of resources to let the water flow out. Instead, they captured theenergy in the wastewater flow with a Kelvin dropper – an electrostatic generator using water
drops. The Kelvin dropper was connected to the sink so that the wastewater can be used togenerate electricity.
National Organiser and Sponsors: Woongjin Coway. Co., Ltd, Ministry of Public Administration and Security,
Ministry of Land, Transport and Maritime Affairs, Ministry of Environment and Korea University

RUSSIAN FEDER ATION
Recovery and Utilization of Water Waste at Tomsk Water Intake
By Ms. Ksenia Stankevich
The contestants tried to identify a rational solution for the recovery of iron-containing sedimentfrom effluents of rapid treatment filters at the Tomsk water intake, as well as a method to best
utilise this waste. The greatest reduction of turbidity and iron content was observed after application of an electric flotation and coagulation method which uses an using electric chemical device
with variable frequency. They also uncovered possibilities for the utilisation of iron-containing
sediments as a raw material for the preparation process.
National Organiser and Sponsors: Environmental Projects Consulting Institute, Coca-Cola Hellenic in Russia,
Matra/KAP Foundation and Ministry of Natural Resources and Ecology of the Russian Federation
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SINGAPORE
Cleaner Water in Urban Areas by Aquatic
PlantsBy Ms. Kai Hui Lim, Ms. Zhen Jia Low and Ms. Hui
Ling Jane Tan
The project team investigated the phytoremediation
potential of ten aquatic plants in remediating N and P
and their application in cleansing Singapore’s waterways. The investigation involved experimental studies
under controlled greenhouse conditions as well as anapplication study on a local tropical waterbody. The
study revealed that, for tropical regions, TKN and TN
may be more appropriate water quality parameters
as compared to nitrate level as the standard adopted
parameter.
National Organiser and Sponsors: Ngee Ann Polytechnic, Lien
Foundation and PUB, Singapore's National Water Agency

SLOVAK REPUBLIC
The Impact of Organic Pollution from Nitra
River Tributary
By Ms. Silvia Hnátová

National Organiser and Sponsors: Bratislava Water Company, Slovak Research and Development Agency, Ministryof Education, Institute of Hydrology of the Slovak Academyof Sciences, Comenius University in Bratislava, Slovak Water
Research Institute, Bratislava and Slovak Hydro-Meteorological
Institute

Photo: Antonio Jiménez Alonso

The aim of this project was to determine the impact oforganic pollution from the Nitra River on the diversityof ciliates in the Chotina, a tributary of the Nitra. Experiments included adding boiled water from the Nitra into
unboiled water from the Chotina. In these experiments,
the impact of pollution on the diversity of ciliates in
the Chotina was observed: organic pollution from the
Nitra caused a decrease in the diversity of ciliates andkilled species less tolerant to organic pollutants.

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SOUTH AFRICA
Solar Powered Waste Water Management System
By Mr. Mduduzi Dlamini and Ms. Nomfundo Zondi
The project aimed at constructing a system for purifying grey-water from school taps to securewater supply. The high water and electricity bills at schools in Imbali township has on someoccasions lead to the municipality cutting water supply. The system is made up of low cost andrecyclable material. Renewable energy is used for purification, sterilisation and distillation of thegrey-water collected from the school taps. Water quality results are positive with low levels ofE. coli. The system can be ideal for rural areas and purification plants.
National Organiser and Sponsors: Water Research Commission, Cape Town University of Technology andUniversity of Kwa-Zulu-NatalSPAIN
Room Temperature Regulation by Water Chamber Windows
By Ms. Ana Esteban Baloira and Ms. Uxia Fernandez Bustillo
The objective of this project was to find a method by which the temperature of a room in ahouse might be controlled using coloured water inside double-glazed windows. Depending on
the outside temperature, the degree of insulation and the dye used in the circuit, the comfort of
the room will be modified depending on the needs and requirement
National Organiser and Sponsors: Kemira Ibérica, S.A. and Fundación Agbar

SRI LANKA
Cost Effective Defluoridation using Nano Materials
By Mr. W.M Eranga Buwaneka Warsakoon, Mr. M.R.M Nuwan Menaka Gunawardana and
Mr. K.P Hasitha Sahan Kalahe
In most areas of the Dry Zone of Sri Lanka, fluoride (F) levels in groundwater exceed 1mg/l.
This research introduced a novel cost effective methodology to provide water with F levels lessthan to 0.5 mg/l. In this research, F reduction capacities of Layered Double Hydroxide (LDH)
was investigated with some other materials. The experimental results show that LDH is themost efficient F reduction material and shows that it can provide F reduced water at a rate of
0.018US$/l.
National Organisers and Sponsors: ITT Corporation and ISB Environmental Services

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Photo: Oskar Henriksson

SWEDEN
Gambling with the Baltic Sea
By Ms. Joanna Blossner, Ms. Miranda Wiklund Melander and Ms. Anna Lindbäck
Gambling with the Baltic Sea is a simulation, where the players play the different roles of stakeholders around the Baltic Sea. The role play builds an understanding of how different actions affectthe ocean. The simulation is supposed to be a fun introduction to Baltic Sea studies, somethingthat is missing today. The Baltic Sea is a unique water body, and its two largest problems are
eutrophication and unsustainable fishing. About 85 million people depend on the Baltic Sea andit plays an important role for the region.
National Organiser and Sponsors: ITT Water & Wastewater, Schwartz Communications, Svenskt Vatten,
Tyréns AB, Urban Water, SYVAB, Luleå kommun, Scandic, Trosa Tryckeri and Skansen-Akvariet

TURKEY
Removal of Radioactive Uranile Ions from Water via Pan Nanofibers
By Mr. Ahmet Fatih Arslan, Mr. Hakan Kaçar and Mr. İlgin ÖzbaşUranile ion is one of the ions threatening public health. The aim of this project was to remove
uranile ions from waste waters via electrospun PAN-oxime nanofibers. The most important
advantage of using nanofibers is that nanofibers have a huge surface area. The results of thisresearch indicated that electrospun PAN-oxime nanofibers can be used as an efficient adsorbent
to remove uranile ions from waste waters.
National Organiser and Sponsors: General Directorate of State Hydraulic Works of Turkey and International
Hydrological Relations Office15

UKRAINE
The Project of Micro Power Station with Low-speeded Hydrodynamic Turbine
By Ms. Mariya Mulyarchuk
One of the most promising sources of alternative energy is hydro energy. The aim of the projectis to try to develop a micro power plant (MPP) to produce energy in rivers with low flow rates,
and to use the hydro energetic resources of Ukraine. The project reintroduced the idea of aself-regulated turbine system with moving blades instead of kinetic devices transforming kinetic
energy with fixed blades.
National Organiser and Sponsors: Company DOW Europe and Publishing House Ekoinform

UNITED KINGDOM
Protecting Property – DRY FLOOD
By Mr. Simon Crowther
This project was inspired by the flooding of the contestant’s house in the summer of 2007.
The aim of this project was to engineer a solution to a problem faced by millions, making an
automated electric flood barrier to automatically sense rising water levels, and rise to defend a
property. Although the project is only a scale model built from acrylic, it does show an insight
into much needed flood prevention.
National Organiser and Sponsors: The Chartered Institution for Water and Environmental Management

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Photo: Getty Images

U N I T E D STAT E S
Rapid Detection of Viable E. coli
By Ms. Rebecca Ye
An immunoassay using a quartz crystal microbalance (QCM) sensor as a platform was developed
and optimised for rapid detection of viable E. coli O157:H7. QCM is a piezoelectric sensor capableof detecting the deposition of mass on its surface as a result of sandwich immunoassay involving
first antibody, bacteria, and second antibody conjugated with gold nanoparticles. The method ishighly sensitive, specific and rapid; it has excellent potential for rapid coliform detection in water.
National Organiser and Sponsors: Water Environment Federation, ITT, Delta and Coca-Cola

VIETNAM
Developing a Funny Scientific Story to Raise Awareness on Protecting Water
By Ms. Linh Do Ngoc and Ms. Tra Ma Thi Thuy
Studying the reading and learning process and environmental awareness of students, the contestantdeveloped a funny scientific story on the topic of water resources. Images of water drops wereused for a story suitable for kids to learn the importance of water, the water cycle in nature, andthe impacts of pollutants and climate change on water. The story has a happy ending: a bright
future awaits water drops, thanks to the effort of students.
National Organiser and Sponsors: Vietnam Association for Conservation of Nature and Environment, Canon
Singapore Pte Ltd - representative office in Vietnam and Vietnam Environment Administration
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Photo: Exray

Stockholm Junior Water Prize Finalists, 2009.

Global Sponsor

Offical Suppliers

www.trosatryckeri.se

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How can we ensure
resources for future
generations?
Think about ITT.
Sixteen years ago, ITT and the StockholmInternational Water Institute initiated theStockholm Junior Water Prize competition.
Tens of thousands of students, teachers,scientists and water professionals aroundthe world have been involved in thiscompetition. Since its inception they havedemonstrated creativity and power todrive change. Most importantly, they have
improved people’s daily lives and bettered
the environment by challenging establishedsolutions and finding new ways to provide
safe water and sanitation globally.

To see how the ITT Watermark
program is making a
difference, please visit
www.ittwatermark.com

To learn more about ITT’scommitment to a moresustainable future, please visit
www.ittfluidbusiness.com

ITT, ITT Watermark, the Engineered Blocks symbol and “Engineered for life” are registered trademarksof ITT Manufacturing Enterprises, Inc. © 2010, ITT Corporation.

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Stockholm Junior Water Prize Winners
2009
Ceren Burçak Dag, Turkey, for the project “Asolution to energy-based water contamination:rain as an alternative environmentally friendly
energy source”.
2008
Joyce Chai, USA, for the project “Modelling thetoxic effects of silver nanoparticles under varying
environmental conditions”.
2007
Adriana Alcántara Ruiz, Dalia Graciela Díaz Gómez
and Carlos Hernández Mejía, Mexico, for the
project “Elimination of Pb(II) from water via bioadsorption using eggshells”.

2003
Claire Reid, South Africa, for the project “Water
Wise Reel Gardening”.
2002
Katherine Holt, USA, for the project “Cleaning the
Chesapeake Bay with oysters”.
2001
Magnus Isacson, Johan Nilvebrant and Rasmus
Öman, Sweden, for the project “Removal of metal
ions from leachate”.
2000
Ashley Mulroy, USA, for the project “Correlating
residual antibiotic contamination in public water
to the drug resistance of Escherichia coli”.

2006
Wang Hao, Xiao Yi and Weng Jie, China, for the
project “Application research and practice of acomprehensive technology for restoring urbanriver channels ecologically”.

1999
Rosa Lozano, Elisabeth Pozo and Rocío Ruiz, Spain,
for the project “Echinoderms as biological indicators of water quality in the Alborán Sea coast”.

2005
Pontso Moletsane, Motebele Moshodi andSechaba Ramabenyane, South Africa, for the
project “Nocturnal hydro minimiser”.

1998
Robert Franke, Germany, for the project “theAquakat – a solar-driven reactor for the decontamination of industrial wastewater”.

2004
Tsutomu Kawahira, Daisuke Sunakawa and Kaori
Yamaguti, Japan, for the project “The organic fertilizer – an alternative to commercial fertilizers”.

1997
Stephen Tinnin, USA, for the project “Changes indevelopment, sperm activity and reproduction
across a 105 exposure range in Lytechinus variegatus
Gametes exposed to pesticides in marine media”.

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