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Whetting appetites for Bath's water research

Tagged: Jannis Wenk

Visit to the Technische Universität München

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📥  Urban water management, Waste water collection and treatment, WIRC @ Bath

On 13 February 2018, Jannis Wenk, Davide Mattia, John Chew and Jan Hofman visited the Urban Water Systems Engineering group of the TU Munich. Our hosts, Prof Jörg Drewes and Dr Uwe Hübner presented the work of chair and showed their impressive pilot plants and research facilities. The group of Prof Drewes is working on a wide range of topics in the field of water and wastewater engineering. One of their focal points is the research on the removal of organic micropollutants in Managed Aquifer Recharge systems. Their research in this field included small scale filter column tests, a large sand-filled pilot plant and full-scale experiment in Berlin near the Tegelsee. Another interesting project was the power-to-gas project in which carbon dioxide and hydrogen were converted to methane gas in trickling bed filters. The gas has a high purity and can be fed directly into the gas grid. The hydrogen was obtained by water electrolysis with electricity from renewable sources in times of low demand.

Besides these two topics, further research was amongst others on ozone systems, UV oxidation, Anaerobic Digestion, Analytical screening techniques, environmental behaviour of microplastics, the urban water-energy-food nexus.

The WIRC delegation gave an overview of WIRC and our research on new materials for water treatment, microbubbles, fluid dynamics gauging and heat recovery from sewers. In the discussions it became clear that there are very good opportunities for collaboration. Jannis Wenk is already involved the supervision of Sema Karakurt, one of the PhD students in Munich. We anticipate that the visit will be followed up by some more visits and possibly PhD student exchanges. Dr Uwe Hübner will visit Bath in the future for a combined Chemical Engineering Seminar and Water Colloquium. The exact date will be announced.


12th Water Technology Conference in Aachen

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📥  Other

On 24 and 25 October, the 12th biennial Conference on Drinking Water and Wastewater Technology was organised by the RWTH Aachen, Germany. WIRC was represented at the conference by Jannis Wenk who gave a presentation on his microbubble research. Jan Hofman is on the programme committee of this conference for many years. He chaired a session on redox processes and removal or organic micropollutants.



Test to prevent crippling fluorosis

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📥  Water supply from source to tap

A research team at the University of Bath’s Centre for Sustainable Chemical Technologies, and the Water Innovation and Research Centre (WIRC), led by Simon Lewis, has developed a simple colour-changing test that detects high levels of fluoride quickly and selectively. The test changes from purple to blue when the levels of fluoride in the water are too high. Whilst the test is at the proof of concept stage, the team aims to develop it into a disposable test strip that is low cost and easy to use by anyone.

The Bath researchers are partnering with the Nasio Trust, a charity that works to protect and support vulnerable children in East Africa, to develop their system for ease of use in the field.

The team is now looking for additional partners to take the technology forward and help develop the test. They are also working towards adapting the technology to other types of notorious water contaminants of global concern, including mercury, lead and cadmium.

The core project team consists of Carlos López-Alled, Simon Lewis, Jannis Wenk and Tony James.

Read the full news article about the test.




Improving the drinking water situation in Mexico

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📥  Water supply from source to tap

The following post was contributed by Dr. Jannis Wenk, a Lecturer in Water Science and Engineering in the Department of Chemical Engineering.

From Friday September 1st to Thursday September 7th 2017 a delegation from WIRC @ Bath consisting of Dr Mirella Di Lorenzo, Dr Jannis Wenk and research assistant Claire Edward-Collins travelled to Mexico to explore the situation of drinking water supply in informal settlements in the peripheral region of Mexico City.

The trip was a central component of MAPwater, a 10-month research project funded by the Royal Academy of Engineering (RAEng), led by Dr Di Lorenzo. During the 6-day stay of the team, meetings were held with local NGOs to gain a better understanding of their activities in the area of water safety and security for supply of underprivileged communities in rural and semi-urban Mexico, as well as to develop further research and education approaches. Together with the NGO Fomento Mexicano, the team visited the rural settlement of Llano Grand in the wider vicinity of Mexico City. The settlement was chosen as a case study area because of the existing issues with water supply and the close contacts of Fomento Mexicano with the community.



German Water Chemistry Society Meeting

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📥  Water supply from source to tap

The following blog post was contributed by Jannis Wenk, Lecturer in the Department of Chemical Engineering.

The 83rd meeting of the German Water Chemistry Society, with a record attendance of more than 300 participants, was held from 22 – 24 May 2017. This year the meeting took place in Donaueschingen, a town in the Black Forest, where the Danube River begins its 2860 km long south eastern journey towards the Black Sea passing through ten countries.

The annual conference provides a platform for the Central European water chemistry research community and is traditionally well attended by delegates from authorities and water utilities from Germany and neighbouring countries. The conference programme consisted of 26 presentations and 90 posters from the areas of water and waste water treatment, groundwater, drinking water, microbiology and water analysis. Dr Jannis Wenk, Lecturer in Water Science and Engineering in the Department of Chemical Engineering, represented WIRC with a poster that was based on his engagement in the German Water Chemistry Society task group on oxidative water treatment processes.



The Photochemistry of Rivers, Lakes and Engineered Low-Energy Treatment Systems

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📥  Other, Water supply from source to tap, WIRC @ Bath

This April sees the next talk in the monthly 'Water Colloquium' series organised by WIRC @ Bath exploring the breadth of water research being undertaken at the University of Bath.

Title: The Photochemistry of Rivers, Lakes and Engineered Low-Energy Treatment Systems

Speaker: Dr Jannis Wenk


When: Tuesday 12th April 2016 at 5.15pm

Where: Room 3.15, Chancellors' Building, University of Bath (Location and maps)

Abstract: The importance of photochemical processes on the fate of aquatic contaminants is widely underestimated. This lecture summarizes highlights of my own studies and discusses them in relation to recent important advancements in the field of environmental photochemistry, with emphasis on reaction mechanisms, monitoring and modelling of photochemical processes in water bodies. Systematic use of natural sunlight for improving water quality in constructed open water systems such as wetlands and stormwater reservoirs will be considered. The presentation is especially addressed to an audience that is unfamiliar with this area of research as I will provide an introduction to the photophysical and photochemical processes that generate a wide range of short-lived reactive species in the upper layer of sunlit surface waters. Along the way I will also explain what the colour of water is.

Contact: Please email Shan Bradley-Cong if you need any further information.


WIRC @ Bath celebrates its first anniversary

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📥  Wessex Water, WIRC @ Bath

The following blog post was contributed by Jannis Wenk, a Lecturer in the Department of Chemical Engineering.

To celebrate the first anniversary of the Water Innovation and Research Centre (WIRC) @ Bath water researchers at the University were invited to join a get-together event. The event intended to bring together water researchers across all departments and different areas of research to spark new collaborations and ideas, and just to meet each other.


The event was a large success and it was impressive to see the variety of water-related research that is conducted at the University. Held in the 4 West foyer on Thursday 21st January 2016, a diverse group of about 50 participants joined, including a delegation from Wessex Water. Many researchers used the opportunity to show posters outlining latest results or ideas for future research. After the introduction speech by the Director of WIRC, Professor Jan Hofman, intensive scientific discussions took place.



Improving water treatment using chemical oxidants

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📥  Water Active, Water supply from source to tap

Dr Jannis Wenk, Lecturer in the Department of Chemical Engineering, explains how research at the Water Innovation and Research Centre at the University of Bath (WIRC @ Bath)  is investigating how chemical oxidants can be used to improve water treatment in the October issue of Water Active.

Water Active is the UK's leading water industry monthly magazine and has the highest number of readers in the water industry. This article continues the monthly series of features by researchers in WIRC @ Bath .

Read the full article written by Dr Jannis Wenk on pages 10 and 12 in the October issue.