Challenging Water (2016)

Water is a fascinating liquid that keeps our bodies running, powers our turbines, and makes our crops grow. But water also presents many challenges: We often have too little or too much, or it is polluted. Global water resources are unevenly distributed and different sectors compete for them – with side effects for people and the environment. National interests can even spark conflicts over water allocation. Water issues are therefore as complex as they are relevant. During the second ETH Week in September 2016 participants addressed the challenge of water in all its dimensions.

 

Meet the teams of 2016:

In Haiti, around 50% of the population is suffering from waterborne diseases. Project Solstill aims at supporting Swiss NGOs in the provision of clean water to the people of Haiti by creating an artificial water cycle based on solar heating, evaporation and condensation. (All photos: Alessandro della Bella)
The campaign Choose to save Water is based on the assumption that Swiss consumers need to be aware of the water footprint of agricultural products, as agriculture accounts for 70% of the global water consumption. It involves diverse media as well as a certification label. Although water sources are highly exploited, the problem is not sufficiently covered in education. Therefore, project Blue Bubble suggests raising awareness in Swiss primary schools by a small, portable device that symbolically looses water whenever water is spent in daily life. Aqua for Life is an app informing the Swiss user about the high water consumption of agricultural products in order to change their eating habits. Next to educational videos, a ranking enables the users to monitor their own behavior and compare with others. Much of the water used for showering is being flushed down the drain at a high temperature. Project Stayhot suggests adding a heat exchanger. The heat of wastewater can be transferred to the fresh water, reducing the amount of energy used by 300 kWh per person per year. The operation of hydropower dams affects the migration and survival of fish. Smart Fish aims at equipping fish with a sensor collecting data of the water quality, providing Swiss ecologists and hydropower producers with relevant data. Swiss NGOs need effective and cheap ways to collect data from areas that lack of information about water quality and quantity. By using the distribution networks of industries like Coca Cola, project Message in a Bottle can reach the population of remote areas with just a coke crate. In project Save-o-Pillar, customers of a supermarket can see how much water they saved with the product they just purchased, based on the underlying assumption that Swiss consumers need to be more aware of their consumption of virtual water. Swiss NGOs need an inexpensive mobile and quick water quality testing device to collect data in countries with water scarcity. With BluSense, the team aimed at developing a portable measurement device for water analysis, substituting common methods of lab inspection and reducing testing time. Currently, 30 % of Switzerland’s drinking water is flushed down the toilet, which could become a problem in dry summers in the future. Project Make grey Water great again allows for reducing the consumption of drinking water up to 20% by using grey water from the shower to flush the toilet. Blue Village is suggesting a decentralized water system, allowing Swiss households with an interest in sustainability to live off the grid by collecting and using rainwater. The system consists out of various elements, like a rainwater storage tank and a rainwater purification system. Based on the assumption that sanitation infrastructure installed by NGOs are not used or properly maintained in countries with public health issues, Mission WASH aims at connecting NGOs and the religious leaders of a community, assuming that religious leaders are able to motivate a behavioral change in people. PoopTube suggest implementing waterless toilets in third world countries in schools in order to motivate young girls to go to school. The feces are stored in a tube, which can be removed and used as fertilizer after decomposition. Although being more efficient, hydroponic products are not trusted in Switzerland. The projects Hydroponics for Children aims at improving the perception of hydroponically farmed products by installing small hydroponic gardens in schools. ActDrain 2000 is a rainwater storage device helping environmentally conscious people in urban areas to collect rainfall to water their balcony plants instead of using valuable tap water. The device can be added to the existing drainage system of a building. Flourish it is a portable toilet enabling Swiss hikers to dispose of their feces without contaminating surrounding water resources with a twist: After the feces are decomposed, they become a fertilizer for the flower seeds integrated in the lid. 1 of 3 persons in the world is lacking sanitation. Project PupiTruck is travelling though Switzerland to educate school children about sanitation issues. The advantages of a biodegradable toilet are explained to the children in an interactive way. Project Aquopia aims at establishing a closed water cycle within a community, scaling down and decentralizing a water treatment technology for environmentally conscious Swiss households.

Participants encountered the following questions during ETH Week 2016: What roles can people and industries in Switzerland play in tackling major water challenges? How can your discipline improve the way we handle water – be it civil engineering, mathematics, information technology, economics, architecture, environmental science, or any other discipline. How can we feed our planet’s growing population while safeguarding its natural water resources? How can we design good water supply systems for people, industries and the environment. More information can be found in the detailed programme and Downloadworkbook (PDF, 1.6 MB).

 

 

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