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World Water Challenge 2022 Final Result

Selected Water Challenges and Solutions

WWCH 2022 attracted 93 solutions from 39 countries with 12 challenges (same main topics in 2020).

The 9 selected solutions out of 93 were selected for the final round, and those solution providers were invited to the WWCH 2022 final round. The selected nine solutions were evaluated by their oral presentations and the interviews during the final round and the three winners of WWCH 2022 were decided according to the criteria: Comprehension, Feasibility, Contribution to “Sustainability”, Challenge, Impact and Presentation. “THE BEST” prize (the Minister Award of the Korean Ministry of Environment) winner was granted 10,000,000 KRW (Approx. 7,600 USD) for the solution titled ‘Micro solar desalinator, easily producible in underdeveloped countries ’, and other two winners were granted “OUTSTANDING” prizes (the President Award of the Korea Water Forum) for the solutions titled ‘Grid connected solar irrigation pumps for economic and sustainable water solution’, and ‘Empowering the local to access safe and sustainable drinking water in Laos’. Two outstanding awardees also received 3,000,000 KRW (Approx. 2,200 USD) cash prize with trophies.

Main Focus Challenges and Solutions Remarks
Water and Health Challenge Scale-up of WASH for Public Health  
Solution Empowering the local to access safe and sustainable drinking water in Laos Outstanding
Solution Improving Access to WASH in school constructing latrines and hand washing facility.  
Efficient Water Management Challenge Integrated Management of Diversified Water Resources  
Solution Micro solar desalinator, easily producible in underdeveloped countries The Best
Water and Natural Disasters Challenge Flood Prevention and Management for Sustainable Water Cycle and Urban Regeneration  
Solution Emergency Water Response (EWR) Unit  
Solution Conservation and Income Generation through the construction of Ponds  
Ecosystem and Water Challenge Nature-based solutions for ecological recovery and reinstate natural process of rivers  
Solution Restoration of the Riverine Ecosystem Through the Application of Nature-based Riparian Eco-belts  
Resource Recovery from Water and Wastewater System Challenge Energy Efficiency in Sewage, Waste water, and Sea Water Recycling and Reuse  
Solution Reuse of Fecal Sludge for Income and Environmental Quality Maintenance  
Challenge NEXUS for Efficient Utilization of Limited Water Resources and Energy Recovery  
Solution Grid connected solar irrigation pumps for economic and sustainable water solution Outstanding
Smart Water Technologies Challenge 'Smart' Solutions for Water Management: Definition and Case of 'Smart Solutions' by Region, Sector, and Target  
Solution SISAM: Improved Solar Irrigation Solution  

World Water Challenge 2021 Final Result

Selected Water Challenges and Solutions

Because of pandemic situation, KIWW 2021 was decided to cancel. Although the KIWW was not happening in 2021, we held WWCH 2021 separately on December 3th in COEX. Following 2020, 12 challenges were determined and 73 solutions from 32 countries participated in WWCH 2021.

The nine selected solutions out of 73 were selected for the final round, and those solution providers were invited to the WWCH 2021 final round which was livestreamed on KIWW website simultaneously. The selected nine solutions were evaluated by their oral presentations and the interviews during the final round and the three winners of WWCH 2021 were decided according to the criteria: Comprehension, Feasibility, Contribution to “Sustainability”, Challenge, Impact and Presentation. “THE BEST” prize (the Minister Award of the Korean Ministry of Environment) winner was granted 10,000,000 KRW (Approx. 7,600 USD) for the solution titled ‘Solving Scarce and Contaminated Water Problems with the Village Drill and Community Funded Financing’, and other two winners were granted “OUTSTANDING” prizes (the President Award of the Korea Water Forum) for the solutions titled ‘Piloting Innovative Flash Flood Early Warning System in Mountainous Regions of China’, and ‘SLAMDAM: Water-Filled Flood Barrier’. Two outstanding awardees also received 5,000,000 KRW (Approx. 3,800 USD) cash prize with trophies.

Main Focus Challenges and Solutions Remarks
Water and Health Challenge Scale-up of WASH for Public Health  
Solution ECO-MITRA: The Integrated Smart Public Washroom Solution  
Efficient Water Management Challenge Integrated Management of Diversified Water Resources  
Solution GreenOtter - Energy-independent, hands-free portable, ultimate WASH station  
Challenge Innovating Financing for Local Water Solutions  
Solution Solving Scarce and Contaminated Water Problems with the Village Drill and Community Funded Financing The Best
Resource Recovery from Water and Wastewater System Challenge Energy Efficiency in Sewage, Waste water, and Sea Water Recycling and Reuse  
Solution Zero Liquid Discharge Desalination with Ultralow Energy: Spontaneous 'Catch-and-Retain' Salts  
Challenge NEXUS for Efficient Utilization of Limited Water Resources and Energy Recovery  
Solution E-fields  
Water and Natural Disasters Challenge The Depletion and Pollution of Water Caused by Climate Change  
Solution Transforming lives and drylands with sand dams and clean water  
Challenge Flood Prevention and Management for Sustainable Water Cycle and Urban Regeneration  
Solution SLAMDAM: Water-Filled Flood Barrier Outstanding
Solution Piloting Innovative Flash Flood Early Warning System in Mountainous Regions of China Outstanding
Smart Water Technologies Challenge 'Smart' Solutions for Water Management: Definition and Case of 'Smart Solutions' by Region, Sector, and Target  
Solution Cocoon Planting Technology for Reduced Water Consumption in Agriculture in Dry Areas in Palestine.

World Water Challenge 2020 Final Result

Selected Water Challenges and Solutions

WWCH 2020 attracted 86 solutions from 37 countries. 12 pre-identified challenges were carefully selected by the international steering committee of the WWCH 2020 before ‘call for solutions process’. Particularly, given the current global circumstance in which the world is suffering from COVID-19 pandemic, WWCH 2020 was held as a virtual event, dealing with the special topic “Water and Health’ along with 5 Main Topics to demonstrate a pathway to not only overcoming the current pandemic but also achieving the Sustainable Development Goals.

  The nine selected solutions out of 86 were selected for the final round, and those solution providers were invited to the WWCH 2020 final round which was livestreamed on KIWW website. The selected nine solutions were evaluated by their oral presentations and the interviews during the final round and the three winners of WWCH 2020 were decided according to the criteria: Comprehension, Feasibility, Contribution to “Sustainability”, Challenge, Impact and Presentation. “THE BEST” prize (the Minister Award of the Korean Ministry of Environment) winner was granted 10,000,000 KRW (Approx. 9,200 USD) for the solution titled ‘Extraction of Water from Air at Zero Energy Expenditure to Mitigate Water and Energy Crisis in India’, and other two winners were granted “OUTSTANDING” prizes (the President Award of the Korea Water Forum) for the solutions titled ‘Gravit’eau: a mobile handwashing station with automatic water recycling’, and ‘SMART Tech in support of Low Tech for Pumping Water Uphill’. Two outstanding awardees also received 5,000,000 KRW (Approx. 4,600 USD) cash prize with trophies.

Main Focus Challenges and Solutions Remarks
Water and Health
(Special Topic
of WWCH 2020)
Challenge Scale-up of WASH for Public Health
Solution (Solution 1) An Innovative Toilet System for Low-income Countries for Covid-19 and SDG 6
Mr. Janith Madubasha Dissanayake, Waterfirst Laboratory, Seoul National University, Republic of Korea
(Solution 2) Resource Circulation Sanitation Showcase to Provide Sustainable Sanitation in Remote Areas
Dr. Shervin Hashemi, Institute for Environmental Research, Yonsei University, Republic of Korea
(Solution 3) Engaging Public, Private, and Civil Society Groups in WASH Through Women-Led Output Based Aid (WOBA)
Mr. Khouankeo Ardphasouk, Thrive Net-Works/ East Meets West Foundation, Lao PDR.
Resource Recovery from Water and Wastewater System Challenge Energy Efficiency in Sewage, Waste water, and Sea Water Recycling and Reuse
Solution (Solution 4) Gravit’eau: a mobile handwashing station with automatic water recycling
Mr. Tom Fitzpatrick, Terre des Hommes, UK
OUSTANDING
(Solution 5) Seawater cooling for photovoltaic solar power greenhouses and agriculture
Mr. Volker Korrmann, IrrigationNets.com, Germany
Smart Water
Technologies
Challenge ICBM, ICT based Water Management
Solution (Solution 6) Intelligent water leak management platform
Prof. Dr. Young-June Choi, WI.Plat Co.,Ltd., Republic of Korea
Challenge Smart' Solutions for Water Management : Definition and Case of 'Smart Solutions' by Region, Sector, and Target
Solution (Solution 7) SMART Tech in support of Low Tech for Pumping Water Uphill
Mr. Auke Idzenga, Alternative Indigenous Development Foundation, Inc., Philippines
OUSTANDING
Ecosystem and Water Challenge Nature-based Solutions for Ecological Recovery and Reinstate Natural Process of Rivers
Solution (Solution 8) Restoration Hydro™: A watershed approach to standard modular new hydropower
Ms. Gia Schneider, Natel Energy and Restoration Hydro™, Natel Energy Inc., USA
Challenge Ecological Urban Water Cycle in Adaptation of Climate Change
Solution (Solution 9) Extraction of Water from Air at Zero Energy Expenditure to Mitigate Water and Energy Crisis in India
Dr. Senthil Kumar Sadasivam, Geobiotechnology Laboratory, National College (Autonomous), India
THE BEST

World Water Challenge 2019 Final Result

Selected Water Challenges and Solutions

WWCH 2019 attracted 67 solutions from 37 countries. Ten prioritized challenges were carefully selected by the international steering committee of the WWCH 2019 before ‘call for solutions process’. In total 67 solutions were submitted from all over the world and only nine solutions were selected for the final round, and those solution providers were invited to the final round of the WWCH during KIWW2019.

  The selected nine solutions were evaluated by their oral presentations and the interviews during the final round at the KIWW 2019 and the three winners of WWCH2019 were decided according to the criteria: comprehension, contribution, feasibility, challenge and impact. “The BEST” prize winner was granted 10,000,000 KRW (Approx. 9400 USD) for the solution titled ‘A water kiosk at school’, and other two winners were awarded “OUTSTANDING” prizes for the solutions titled ‘Novel Fertilizer Production from Human Urine in Membrane Distillation Process’, and ‘Sponge-An Innovation in irrigation for sustainable farming’. Two outstanding awardees also received 3,000,000 KRW (Approx. 2,600 USD) cash prize with trophies.

Challenges
(Topics)
Solutions Award
Efficient Water
Management
A water kiosk at school The Best
Sponge – An innovation in irrigation for
sustainable farming
Outstanding
Smart Technology for Integrated Management of
Diversified Water Resources
Resource Recovery
from Water and
Wastewater System
Novel Fertilizer Production from Human Urine in
Membrane Distillation Process
Outstanding
Improving Water Security through Water-Energy
Nexus Approach in Danang city of Vietnam
Solar Dew – Solar Water purification and
desalination for households and communities
Rejuvenation of Lake Mahadevapura using Nature
Based Systems
Water and Natural
Disasters
Exploiting the synergies between sustainable urban
drainage systems(SUDS) and urban farming
Smart Water
Technologies
AgriHydro A Smart Technology to Better
Irrigation Management in IWRM platform

World Water Challenge 2018 Final Result

Selected Water Challenges and Solutions

[Topic 1] Efficient Water Management

Problem 1 Low Agricultural Water Productivity in Urmia Lake Basin

Solution 1 The Buried Diffuser : an effective underground irrigation system for optimal water management

[Topic 2] Resource Recovery from Water and Wastewater System

Problem 2 Septage management in the urban areas of Indonesia

Solution 2 Sustainable Rainbow

Solution 3 Septage Management through decentralization of septic tanks and Community Participatory Approach

[Topic 3] Water and Natural Disasters

Problem 3 Choluteca River "Mad Water“

Solution 4 Quesungual Belt for Flood Mitigation

[Topic 4] Smart Water Technologies

Problem 4 Problems Pertinent to Prevalence of Excessive Fluoride in Different Water Sources

Solution 5 Low-cost and low-tech defluoridator device based on calcium phosphate

[Topic 5] Ecosystem and Water

Problem 5 Water Insecurity in Manoka

Solution 6 Multiple Water Solutions for Water Insecurity in Manoka Islands

Solution 7 Water resource management for future water security

World Water Challenge 2017 Final Result

Selected Water Challenges and Solutions

[Topic 1] Efficient Water Management

Problem 1 Current Onsite Sanitation System in the Urban Areas of Bhutan is not Adequate

Solution 1 Sanitation Revolution: From Waste to Resource

Solution 2 Compact and improved onsite sanitation using renewable energy and plastic waste biofilter media

Problem 2 Drainage Water Reuse in Egypt

(Not placed int the list of 10 Selected Solutions)

Problem 3 How Can Rainwater Harvesting Be Implemented to Obtain an Alternative Resource in HCMC, Mekong Delta?

Solution 3 Groundwater Recharge Wells

Solution 4 VAC Initiative for rainwater self-collection system for public space in Ho Chi Minh City

[Topic 2] Resource Recovery from Water and Wastewater System

Problem 4 Water Scarcity and Saline Groundwater Affecting Local Community of Kojani,Zanzibar

Solution 5 A bucket brings fresh water, Sorain Bucket

[Topic 3] Water and Natural Disasters

Problem 5 RasGharib Floods

(Not placed int the list of 10 Selected Solutions)

Problem 6 Water Scarcity Issues in the Small Hilly Villages of Under Pemagatshel District in Bhutan

Solution 6 Self-Tank Roof Water Harvesting Soil Cement base Ferro Cement Tank

Problem 7 Villagers Suffering from Draught and Arsenic Water Simultaneously

(Not placed int the list of 10 Selected Solutions)

[Topic 4] Smart Water Technologies

Problem 8 Drinking Water and Sanitation Problem in Bamgha Village, Gulmi Nepal

Solution 7 Low cost Do it Yourself Rain water harvesting in cooperation with Local Government

Problem 9 Near the Water without Water

(Not placed int the list of 10 Selected Solutions)

Problem 10 Water Management Crisis in Cisangkuy River and Bandung Mega City in Indonesia

Solution 8 Integrated Urban Water Management: Tradition to Solution for Cities

Solution 9 Improving water management with a game-based approach

Solution 10 Smart water management to overcome water crisis in Cisangkuy river and Bandung mega city, Indonesia

World Water Challenge 2016 Final Result

Selected Water Challenges and Solutions

[Topic 1] Efficient Water Management

Problem 1 Current Onsite Sanitation System in the Urban Areas of Bhutan is not Adequate

(Not placed int the list of 10 Selected Solutions)

Problem 2 Water Scarcity isolated islands in Greece using fossil fueled electricity

Solution 1 Low electricity desalination based on smart water grid in islands

Problem 3 Effective Farm-level Water Management by the Water Users Association in the Central Asia

Solution 2 Effective Farm-Level Water Management by Water Users Association in Central Asia

Problem 4 Leakage Reduction Activities in Developing Countries

Solution 3 Akvo Caddisly: Water Quality testing on a mobile phone

[Topic 2] Resource Recovery from Water and Wastewater System

Problem 5 Wastewater Reuse in Agriculture in Mexico

Solution 4 Atotonilco Wastewater Treatment Plant

Problem 6 Low-cost DIY (Do-It-Yourself) Type Water Purifier

Solution 5 Aastha Bio Sand filter

Problem 7 Appropriate Technologies for Water Purification in Underdeveloped Countries

Solution 6 Development of water purifier with filter made by raw materials in Cambodia

Solution 7 Phytoremediation for clean drinking water systems

Solution 8 Off-grid Stand-alone Solar PV Generation & Water Purification Hybrid System

[Topic 3] Water and Natural Disasters

Problem 8 Difficulties in Access to a Limited Drinking Water Source

(Not placed int the list of 10 Selected Solutions)

Problem 9 Problems of Untreated Sewage Discharge during the Wet Season

Solution 9 "the gas tracer method"

Solution 10 Sustainability in the management of transboundary water resources

[Topic 4] Smart Water Technologies

Problem 10 Difficulties in Agriculture by Locally Shifting Season

(Not placed int the list of 10 Selected Solutions)

World Water Challenge 2015 Final Result

Selected Water Challenges and Solutions

Problem 1 Flooding in Citarum river

Solution 1 Flood Forecasting and Warning System for Citarum River Basin

Problem 2 Development and operation of an early flood warning system including capacity development

Solution 2 An open source, user friendly flood early warning and forecasting system

Problem 3 Safe Water Sources for Coastal Slums

Solution 3 Rainwater Harvesting (RWH) and Boat Delivery system for Drinking Water Supply at Coastal Slums of Makoko

Problem 4 Water Scarcity in the Desert Communities of Western Rajasthan

(Not placed int the list of 10 Selected Solutions)

Problem 5 Arid islands on South Aegean Sea facing water scarcity and overloaded energy systems

Solution 4 Dimensioning desalination units using Renewable Energy Sources on the arid islands of South Aegean Sea

Problem 6 No easy acces to water for many upland villages and farms

Solution 5 Green Revolution by implementing Low solar energy water pump

Problem 7 Securing Water for Food: A Grand Challenge to Meet Food Crisis

Solution 6 Promoting rain and wastewater harvesting techniques among rain-fed communities of Pakistan

Problem 8 Abakaliki, a pottential Eco-city in Nigeria

(Not placed int the list of 10 Selected Solutions)

Problem 9 Securing Water for Food: A Grand Challenge to Meet Food Crisis

(Not placed int the list of 10 Selected Solutions)

Problem 10 Rural water problem

Solution 7 EKOMURO H2O+ COLLECTING RAINWATER IN USED PET CONTAINERS IN SCHOOLS AND URBAN POVERTY REGIONS

Problem 11 Self sustained water desalinator for each family in remote area

Solution 8 Low Cost Multi Effect Solar Still

Problem 12 Wastewater crises in Izbet El Islah

Solution 9 Self sufficient triple-stage treatment process for Izbet El-Islah wastewater crisis

Problem 13 The Need For a Good Quality Water Source for Citizens of Gwangju Metropolitan City.

Solution 10 The suggestion for operating of public sewage treatment plants through the introduction of Basin Sewerage Integrated Management System

Problem 14 What are the positive and negative influence according to the construction of sewage (Interceptor, P/S, CSOs) in combined drainage system area?

(Not placed int the list of 10 Selected Solutions)

Problem 15 Managing complexity and dealing with distrust in transboundary basins: An example of the Aral Sea basin of Central Asia

(Not placed int the list of 10 Selected Solutions)