Department Process Engineering

News 2022

December 6, 2022 –

Currently, the first Swiss wastewater treatment plants are being upgraded with an additional treatment stage for the removal of micropollutants using granulated activated carbon (GAC), including the WWTP at Muri. Eawag provided...

Currently, the first Swiss wastewater treatment plants are being upgraded with an additional treatment stage for the removal of micropollutants using granulated activated carbon (GAC), including the WWTP at Muri. Eawag provided technical support for the design of the installation and is also investigating unresolved issues.

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November 21, 2022 –

Eawag researchers Wenzel Gruber and Urs Schönenberger have won this year's Otto Jaag Water Protection Prize for their dissertations. Reducing emissions of the climate-damaging nitrous oxide from wastewater treatment plants and...

Eawag researchers Wenzel Gruber and Urs Schönenberger have won this year's Otto Jaag Water Protection Prize for their dissertations. Reducing emissions of the climate-damaging nitrous oxide from wastewater treatment plants and reducing the leaching of pesticides from drainage systems are the topics.

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November 17, 2022 –

No tiger duck and no football club - the formula "yellow-black-grey" refers to the separation of wastewater streams at their source, i.e. at the toilet, washbasin or shower. This opens up new possibilities and saves resources. On...

No tiger duck and no football club - the formula "yellow-black-grey" refers to the separation of wastewater streams at their source, i.e. at the toilet, washbasin or shower. This opens up new possibilities and saves resources. On the occasion of World Toilet Day on 19 November, a series of Eawag fact sheets shows how this can be done.

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September 16, 2022 –

The “Water Wall” developed by Eawag researchers recycles handwashing and toilet flushing water in a closed cycle and can therefore be used in regions with scarce water resources or those without water and wastewater networks. Now...

The “Water Wall” developed by Eawag researchers recycles handwashing and toilet flushing water in a closed cycle and can therefore be used in regions with scarce water resources or those without water and wastewater networks. Now the project has been awarded the Mülheim Water Award.

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June 23, 2022 –

On June 22 and 23, the Eawag PEAK course « Activated carbon for the elimination of trace substances – Processes variants with PAC and GAC », in collaboration with the VSA, took place successfully.

On June 22 and 23, the Eawag PEAK course « Activated carbon for the elimination of trace substances – Processes variants with PAC and GAC », in collaboration with the VSA, took place successfully.

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May 31, 2022 –

The biologically active, slow-flow sand filters of lake water treatment would remove nanoplastics from the raw water very efficiently. This was shown both in the laboratory and in larger, realistic tests and modelling.

The biologically active, slow-flow sand filters of lake water treatment would remove nanoplastics from the raw water very efficiently. This was shown both in the laboratory and in larger, realistic tests and modelling.

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May 5, 2022 –

Eawag researchers Sabine Hoffmann, Kai Udert and Lisa Deutsch are committed to a sanitation and nutrient transformation. They use an example to explain why a transformation is needed and why collaboration with politicians in...

Eawag researchers Sabine Hoffmann, Kai Udert and Lisa Deutsch are committed to a sanitation and nutrient transformation. They use an example to explain why a transformation is needed and why collaboration with politicians in particular is a challenge.

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May 4, 2022 –

What has been a purification process in wastewater treatment plants for decades can also be used decentrally or semi-centrally as a recycling process for nutrients. Early separation of "solid and liquid" plays a key role here. It...

What has been a purification process in wastewater treatment plants for decades can also be used decentrally or semi-centrally as a recycling process for nutrients. Early separation of "solid and liquid" plays a key role here. It allows for flexible solutions in terms of process technology, especially in the treatment of urine. New studies also show that the processes can be used not only for human urine, but also for that of cows or pigs.

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April 8, 2022 –

The Wings Research Programme explores alternative, decentralised sewage systems and brings actors from the areas of research, politics, authorities, urban planning, and engineering and architectural firms together.  The objective...

The Wings Research Programme explores alternative, decentralised sewage systems and brings actors from the areas of research, politics, authorities, urban planning, and engineering and architectural firms together.  The objective is to promote innovations in the water sector and find ways to create a sustainable and flexible future for wastewater.

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April 7, 2022 –

With the support of Eawag, experts from the VSA platform "Process Engineering for Micropollutants" investigated the inputs of substances from industry and commerce into waterbodies. The nationwide analysis shows that treated...

With the support of Eawag, experts from the VSA platform "Process Engineering for Micropollutants" investigated the inputs of substances from industry and commerce into waterbodies. The nationwide analysis shows that treated wastewater from businesses also contains micropollutants that enter waterbodies.

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January 20, 2022 –

Switzerland has around 800 municipal wastewater treatment plants. A recent study by Eawag researchers reveals the burden these plants place on the climate, and explores how emissions of climate-damaging nitrous oxide can be...

Switzerland has around 800 municipal wastewater treatment plants. A recent study by Eawag researchers reveals the burden these plants place on the climate, and explores how emissions of climate-damaging nitrous oxide can be reduced.

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January 18, 2022 –

Eawag researchers investigated this question in two extensive pilot studies at the Furt-Bülach and Glarus wastewater treatment plants. The findings: Granular activated carbon filtration efficiently removes micropollutants, is...

Eawag researchers investigated this question in two extensive pilot studies at the Furt-Bülach and Glarus wastewater treatment plants. The findings: Granular activated carbon filtration efficiently removes micropollutants, is technically feasible and is an equal alternative to other processes.

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2021

December 7, 2021 –

With around 200 pictures and texts, the new Water Timeline takes you through 200 years of the eventful history of Swiss water protection. It aims to show how shifts towards more sustainable management of natural resources can be...

With around 200 pictures and texts, the new Water Timeline takes you through 200 years of the eventful history of Swiss water protection. It aims to show how shifts towards more sustainable management of natural resources can be shaped. 

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November 23, 2021 –

Researchers Christoph Vorburger and Florian Altermatt talk about the importance and state of aquatic biodiversity in Switzerland and Eawag’s commitment to conserving natural biodiversity.

Researchers Christoph Vorburger and Florian Altermatt talk about the importance and state of aquatic biodiversity in Switzerland and Eawag’s commitment to conserving natural biodiversity.

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November 17, 2021 –

The separation toilet save! has won the Design Award Switzerland 2021. This is also a milestone for Tove Larsen. She is a member of the Eawag Directorate and has been researching for almost 30 years how the nutrients in wastewater...

The separation toilet save! has won the Design Award Switzerland 2021. This is also a milestone for Tove Larsen. She is a member of the Eawag Directorate and has been researching for almost 30 years how the nutrients in wastewater can be recovered in a useful way. In this interview on the occasion of World Toilet Day 2021, she explains how crucial our handling of wastewater is for climate change and for achieving the SDGs sustainability goals.

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November 17, 2021 –

Together with a team of researchers and designers, Kai Udert has designed a toilet system that makes it possible to recycle nutrients from wastewater on-site. As a result, valuable nutrients can be recovered and used as...

Together with a team of researchers and designers, Kai Udert has designed a toilet system that makes it possible to recycle nutrients from wastewater on-site. As a result, valuable nutrients can be recovered and used as fertilisers so that they no longer end up in lakes and oceans where they do a lot of damage. Now he wants to make the system ready for market together with industry partners.

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September 9, 2021 –

An Eawag study has shown that it makes good sense to recover domestic energy, for example from warm shower water. The study refutes concerns that this form of heat utilisation could have a negative impact on waste water treatment...

An Eawag study has shown that it makes good sense to recover domestic energy, for example from warm shower water. The study refutes concerns that this form of heat utilisation could have a negative impact on waste water treatment plants. In fact, utilising the energy closer to its source reduces energy losses in the waste-water system.

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July 15, 2021 –

Open Science is an important development in science - open access to the results of research. Eawag supports these and makes a growing part of its research data, including descriptions, images and even software, available publicly...

Open Science is an important development in science - open access to the results of research. Eawag supports these and makes a growing part of its research data, including descriptions, images and even software, available publicly and free of charge on the Eawag platform ERIC or, in special cases, on discipline-specific, international databases. ERIC complements the long-standing platform DORA for scientific publications.

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June 11, 2021 –

In the Water Hub, our scientists are researching sustainable and decentralised wastewater treatment. Here, wastewater is not regarded as waste, but as a resource. Now the research platform in NEST can be visited virtually at any...

In the Water Hub, our scientists are researching sustainable and decentralised wastewater treatment. Here, wastewater is not regarded as waste, but as a resource. Now the research platform in NEST can be visited virtually at any time.

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April 12, 2021 –

A mobile handwashing station that hygienically recycles its own water without water mains or sewage connection not only has great potential for deployment in countries lacking in infrastructure. The water wall also has great...

A mobile handwashing station that hygienically recycles its own water without water mains or sewage connection not only has great potential for deployment in countries lacking in infrastructure. The water wall also has great potential in public transport or at events.

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March 25, 2021 –

In the latest NEST podcast with Peter Richner, Tove Larsen talks about what we flush down the toilet, why problems should be solved at the source and why wastewater doesn't lie.

In the latest NEST podcast with Peter Richner, Tove Larsen talks about what we flush down the toilet, why problems should be solved at the source and why wastewater doesn't lie.

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March 23, 2021 –

Online biomonitoring systems offer the possibility of real-time monitoring of wastewater with organisms and enable wastewater treatment plant operators to react immediately to acute pollution in wastewater. So far, however, very...

Online biomonitoring systems offer the possibility of real-time monitoring of wastewater with organisms and enable wastewater treatment plant operators to react immediately to acute pollution in wastewater. So far, however, very little information is available on the suitability of online biomonitoring systems for such monitoring. An applied project by Eawag, the University of Applied Sciences Northwestern Switzerland and the Oekotoxzentrum is now set to change this.

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March 22, 2021 –

The motto of today’s World Water Day is “Valuing water – What means water to you?”. With this motto, the United Nations wants to raise awareness of the vital importance of water and call on people to think about the value of...

The motto of today’s World Water Day is “Valuing water – What means water to you?”. With this motto, the United Nations wants to raise awareness of the vital importance of water and call on people to think about the value of water. In an interview, Eawag Director Janet Hering explains the importance of water for the aquatic research institute Eawag and also her personally.

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March 11, 2021 –

Rare earth metals such as cerium and gadolinium are increasingly entering wastewater from industry, but also from hospitals. This is shown by Eawag’s investigations at 63 wastewater treatment plants in Switzerland.

Rare earth metals such as cerium and gadolinium are increasingly entering wastewater from industry, but also from hospitals. This is shown by Eawag’s investigations at 63 wastewater treatment plants in Switzerland.

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February 23, 2021 –

A new fact sheet highlights the opportunities and challenges associated with greywater.

A new fact sheet highlights the opportunities and challenges associated with greywater.

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January 29, 2021 –

For three months, an extended family in South Africa tested the standalone Autarky toilet cubicle. Everyone was very happy with the quiet hideout.

For three months, an extended family in South Africa tested the standalone Autarky toilet cubicle. Everyone was very happy with the quiet hideout.

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2020

December 4, 2020 –

The mobile and automated MS2field mass spectrometer allows measurements to be taken of harmful substances in surface waters with high temporal resolution. The initial measurements using the device are revealing the extent to which...

The mobile and automated MS2field mass spectrometer allows measurements to be taken of harmful substances in surface waters with high temporal resolution. The initial measurements using the device are revealing the extent to which peak concentrations of pesticides, for example, have been underestimated by traditional methods.

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November 19, 2020 –

At Eawag, the aquatic research institute, numerous scientists are conducting research into toilets. In short videos, seven of them explain what fascinates them about the topic and what exactly their research is all about.

At Eawag, the aquatic research institute, numerous scientists are conducting research into toilets. In short videos, seven of them explain what fascinates them about the topic and what exactly their research is all about.

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September 29, 2020 –

Circular economy also holds great potential when it comes to wastewater. At NEST, Eawag is conducting research on decentralized wastewater treatment with the aim to use wastewater as a source of nutrients, energy and water....

Circular economy also holds great potential when it comes to wastewater. At NEST, Eawag is conducting research on decentralized wastewater treatment with the aim to use wastewater as a source of nutrients, energy and water. Important partners are Keramik Laufen AG with the urine separation toilet "Save!" and the Eawag Spin-off Vuna with the liquid fertilizer made of urine "Aurin".

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September 8, 2020 –

Process Engineer Adriano Joss from Eawag water research institute has been working for many years on wastewater treatment plants and the removal of micropollutants from water. Together with Ralf Kägi, Head of the Eawag Particle...

Process Engineer Adriano Joss from Eawag water research institute has been working for many years on wastewater treatment plants and the removal of micropollutants from water. Together with Ralf Kägi, Head of the Eawag Particle Laboratory, he has compiled the current status of knowledge on microplastics. In an interview, he presents the most important findings. We have recently posted detailed information on the website “Microplastics in the environment”.

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August 28, 2020 –

Nature Sustainability has just published a review article on possible risks that COVID-19 viruses could cause in wastewater. Prof Eberhard Morgenroth (Head of the Eawag Department of Process Engineering) is a co-author of the...

Nature Sustainability has just published a review article on possible risks that COVID-19 viruses could cause in wastewater. Prof Eberhard Morgenroth (Head of the Eawag Department of Process Engineering) is a co-author of the review. We asked him five questions.

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July 20, 2020 –

In addition to ozonation, filters using granulated activated carbon (GAC) are increasingly being deployed to eliminate trace substances from municipal wastewater. Working in conjunction with authorities and representatives from...

In addition to ozonation, filters using granulated activated carbon (GAC) are increasingly being deployed to eliminate trace substances from municipal wastewater. Working in conjunction with authorities and representatives from the field, Eawag has developed a document that will assist stakeholders with planning in relation to such measures.

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May 25, 2020 –

126 Swiss researchers, including 6 from Eawag, want to draw the attention their Swiss compatriots to the scientific evidence showing the link between the emergence of pandemics and human disturbance of the natural environment.

126 Swiss researchers, including 6 from Eawag, want to draw the attention their Swiss compatriots to the scientific evidence showing the link between the emergence of pandemics and human disturbance of the natural environment.

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April 3, 2020 –

Researchers want to make use of the fact that coronaviruses excreted by infected individuals can be found in wastewater. If the viruses can be detected successfully, this may provide a much faster way of spotting a wave of...

Researchers want to make use of the fact that coronaviruses excreted by infected individuals can be found in wastewater. If the viruses can be detected successfully, this may provide a much faster way of spotting a wave of infections than via testing of symptomatic individuals. To find out more, we interviewed Eawag researcher Christoph Ort.

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February 24, 2020 –

Geochemist Denise Mitrano received this year’s SNSF Eccellenza Professorial Fellowship. This fellowship enables her to establish her own research group at the ETH Zurich as an assistant professor. She would like to use this...

Geochemist Denise Mitrano received this year’s SNSF Eccellenza Professorial Fellowship. This fellowship enables her to establish her own research group at the ETH Zurich as an assistant professor. She would like to use this opportunity to get one step closer to her career goal: to become a full professor.

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February 17, 2020 –

Eawag and the Eawag spin-off Vuna have made urine fertiliser production mobile. Today, the Urine Express will be presented at a very special location in Biel: next to the first public grass tennis court in Switzerland. In future,...

Eawag and the Eawag spin-off Vuna have made urine fertiliser production mobile. Today, the Urine Express will be presented at a very special location in Biel: next to the first public grass tennis court in Switzerland. In future, the tennis court is to be fertilised with urine fertiliser.

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