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Water

A pool of water with water lilies surrounded by plants
In the Botanical Garden's tropical house, rainwater is used in part to irrigate the plants. (Photo: © Sustainability Office, University of Basel)

Water plays a crucial role in many areas at the University of Basel: as a coolant, drinking water, in laboratories, for cleaning and watering plants. During the COVID-19 pandemic, total water consumption declined due to reduced use of facilities. In 2022, water consumption rose again, largely as a result of an increased use of cooling water during maintenance works at refrigeration machines in laboratories.

The University of Basel is careful to protect its water resources and use them responsibly. This includes, for example, thoroughly neutralizing laboratory wastewater before flushing it into the wastewater system. In order to reduce water consumption, potential campus-wide water savings measures are constantly being tested.

Use of rainwater in the Botanical Garden

Icon of SDG 6.4
Contribution to achieving the Sustainable Development Goals (https://sdgs.un.org/)

In the Botanical Garden, large quantities of water are needed to fill the ponds and water the plants. In the greenhouses, some 50% of the water used is rainwater that is collected from the roofs and stored in two cisterns. The rainwater is filtered and sanitized using a modern system before it is used to water plants. This process resulted in a total of 2,800 m3 of tap water saved in 2021 and 2022, which amounts to more than the total capacity of an Olympic-sized swimming pool.

Goals & actions

Goals 2023/2024
Actions
responsible unit
Goals 2023/2024

Improve data collection and monitoring of energy and water consumption

Actions

Automate data evaluation in the energy management and monitoring system (EMMS), develop a concept for reporting results to user groups in the various buildings

responsible unit

Project Management & Engineering

Goals 2023/2024

Reduce water consumption at the University of Basel

Actions

Optimize monitoring of water consumption (drinking and process water), review water-saving measures at the campus level

responsible unit

Facilities

Campus Services

Footnotes
Footnotes

[1] In 2019, the daily household consumption of a person in Switzerland was approx. 142 liters per day, or 52,000 liters (52 m3) per year.

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