Category: Healthy Water

Visual Guide to Ram Pressing Water Filter Pots

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By Rosy Heywood, Research Associate at the Centre for Print Research, UWE Bristol

The ceramics research team on the Healthy Waters project have designed and 3D printed a press mould to create porous water filter pots. The moulds were then fitted into a piston extruder to create a ram press. The ceramic ram-press function is an adaption of our hydraulic clay extruder, which is also used as a delivering system for ceramic paste in our experiments with large-scale 3D printing with robotic arms in other research projects.  

The benefits of ram pressing the pots is we could produce consistently sized and quality pots at speed. The clay used was a clay and sawdust mix and we have found it to be difficult to work with as it has a loose and fragile consistency. However, we have found ram pressing the clay forces the mixture to bind together due to the pressurised conditions. The pots are then fired at a low firing temperature of 800 degrees. The sawdust burns off in the kiln and the result is a porous ceramic structure. This research has been inspired by the methodology of Potters for Peace in their report titled ‘Best Practice Recommendations for Local Manufacturing of Ceramic Pot Filters for Household Water Treatment’.

Figure 1 Ram press set-up
Figure 2 Pot after pressing

The sample pots were manufactured in four different clay types in order to test the water filtration efficacy of a range of clays. The clays used were; red earthenware, white earthenware, porcelain and white stoneware. Each clay was used in powder form and mixed with equal parts of sawdust in volume before being combined with water to make plastic clay. The clay was then worked and wedged in preparation for ram pressing.

The video below shows our process of building a filter pot using the ram press. 

Ram press process for creating water filter pots for direct water filtration. Research conducted at the Centre for Print Research, UWE Bristol

If you would like to get in touch to discuss a collaboration with the Centre for Print Research, please send me an email at rosy.heywood@uwe.ac.uk.

Production and Prototyping Equipment for Manufacturing Ceramic Media for Water Biofiltration

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Image: Research Associates Rosy Heywood and Sonny Lightfoot using the extruder

Written by Rosy Heywood, Research Associate, Centre for Print Research

The production and prototyping of ceramic media has been predominantly based at the Centre for Print Research labs. The centre has expansive facilities with an array of technical equipment. Specialist machinery used in this project includes a hydraulic piston extruder and 3D printer. Other workshop equipment was utilised including an industrial dough mixer, ball mill and laser cutter.

During the design phase of creating the ceramic media it was considered a requirement that the production methods are able to produce 160 pieces of each type of media efficiently and consistently in size and also, the production method should be scalable and easily repeatable for future experimentation.

In our research, the importance of the porosity of the ceramic media was being analysed. And three production methods were established for the creation of three sets of media of varying porosities. Low porosity media was produced through extruding standard terracotta clay, medium porosity was produced by extruding a clay and sawdust composite and high porosity media was produced using an organic foam impregnation method. The specialist technical equipment used for low and medium porosity media is detailed below.   

Extrusion

With its origins in the production of bricks, extruders are now used in many different industries. According to Frank Handle in Extrusion in Ceramics, notable applications are in the production of foodstuffs such as pasta, shaping of aluminium profiles, wrought copper alloys and steel and for the extrusion of hard metal, graphite, coal and plastics.

The extruder housed at The Centre for Print Research was built by the technical team for the specific use with clay and clay composites. The clay is pushed through a die by the manually operated hydraulic ram. The die determines the extruded profile shape and size which can be extruded to different lengths.

To create the desired extrusions, we designed dies and 3D printed them to fit the ram cylinder. The benefits of using a piston extruder for this research is; it is easy to clean so small chance of contamination, little material is wasted and bespoke extrusion profiles can be produced with ease and precision using desktop 3D printers.

3D Printing

3D printing technology was utilised in this research to create bespoke manufacturing tools. Additive manufacturing is the production of 3D objects printed from a CAD (Computer Aided Design) model.

Filament is fed through the printer and the model is printed layer by layer. In prototyping we used a recycled Polylactic Acid (PLA) filament for the tools. PLA is a bio-plastic made from fermented plant starch and is commonly used in 3D printing due to versatility and ease of printing.

The advantage of using this technology is that we could create bespoke tools for specific processes during manufacturing the media. For example, a die was printed to extrude cylinders 20mm in diameter and a cutting jig was printed to cut them into exactly 20mm individual lengths.

Figure 2 3D printer in action printing an extrusion die

Getting back into the conference circuit

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Image: Exterior of IWA World Water Congress and Exhibition’s Gala Dinner held at the Øksnehallen.

By Dr Gillian Clayton, Centre for Research in Biosciences, College of Health, Science and Society

It has been several years since we’ve been able to attend any international conferences in person, but Darren Reynolds and I recently attended the International Water Association World Water Congress and Exhibition in Copenhagen, Denmark. This congress included 8,00o attendees, with over 300 exhibitors from all over the world to discuss all aspects of water. The overall theme of the congress was Water for Smart Liveable Cities, encouraging universities, independent research institutions, utilities, and industry to share information and work together. The congress theme aligns with the United Nations Sustainable Development Goal 6: Clean Water and Sanitation for All, and many of the talks and workshops discussed solutions to overcome key issues around water, sanitation and hygiene (WaSH). There were six key themes throughout the congress including, utility management, drinking water and potable reuse, city-scale planning, communities and partnerships and water resource management. This congress was a great way to share knowledge and create collaborations around many aspects of water that we cover within the Healthy Waters research cluster.

The breadth of this conference was introduced nicely with the opening keynote given by Professor Jason Box of The Geologic Survey of Denmark and Greenland. Here Professor Box highlighted the need for actions to prevent or slow increases in global temperatures. This talk provided a great overview of climate change, stating that global temperature increases are disproportionately affecting the arctic region, specifically the Greenland ice sheet, which was highlighted in the first episode of the new Frozen Plant 2 series. Increased glacial melting in the artic regions are not only causing an increase in water levels, but the additional cold freshwater entering in oceans is affecting global weather patterns, through the shifting ocean currents. This has never been more obvious with extreme weather events are becoming more common, such as hurricane Fiona recently affecting Puerto Rico, severe flooding in Pakistan and the typhoon in Japan.

These changes in weather events are going to further exacerbate uneven distribution of freshwater around the planet, with the poorest nations suffering the most. Therefore, utilising alternative water sources for drinking and daily use, and developing technologies and solutions to effectively treat water with minimal resources and environmental impact is necessary. The research I presented investigates treating stored waters, such as rainwater or ground water, with an in-situ electrochemical cell that reduces bacterial load (such as E. coli), making it safe to drink. The work is ongoing with project partners Bala Vikasa/Frank Water based in Telangana, India and the University of Antananarivo and Sadabe in Madagascar.

One aspect the congress organisers were keen to highlight was the transformation of the Copenhagen Harbour over the past ten years. Throughout the summer people are swimming, kayaking and paddle boarding throughout the canals which cut through the centre of the city. Ten years ago, there were constant instances of wastewater entering the Copenhagen harbour, yet with investment in wastewater treatment facilities the harbour is an example of sustainable city living. The transformation of Copenhagen harbour provides hope Conham River Park and Eastwood Farm Nature Reserve where there is an ongoing petition to designate the areas with bathing water status.

Biofiltration – a new future for fresh water

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Around the world, the pressure to secure future supplies of fresh water is mounting. Only 2.5% of the world’s water is fresh, and only 0.77% of that water is deemed accessible. As if that’s not enough, only 10% of that is reported to be suitable for human consumption. Water demand globally is projected to increase by 55% between 2000 and 2050, driven by growing population sizes and their demand for agricultural products, energy supply and drinking water.

UNICEF’s 2019 report estimates that 1 in 10 people still lack basic water services (a protected and accessibly drinking water source, use of an improved toilet or latrine, and handwashing facilities in the home). This includes the 144 million people who drink untreated surface water; the consumption of biologically contaminated water is estimated to cause almost half a million annual deaths.

Researchers at UWE Bristol’s Centre for Research in Biosciences have been developing methods of treating biologically contaminated water using biofiltration. In their recently published study ‘The control of waterborne pathogenic bacteria in freshwater using a biologically active filter’, researchers Joshua Steven, Robin Thorn, Gareth Robinson, Dann Turner, and Darren Reynolds, alongside Jack Lee of Origin Aqua Technologies, set out to investigate the control of three species of bacteria commonly associated with biologically contaminated water.

UWE academics identified an unmet need for low-energy, sustainable solutions for the provision of potable water in communities with limited infrastructure. This study aimed to see if biofiltration was a viable option for treating water, as it is cheaper and less energy-intensive than techniques like chlorination and ozonation. Biofiltration is a technique which involves using bacteria to break down and consume unwanted contaminants, utilising microbial biofilms in filter columns. Biofilms are self-supporting communities of microorganisms, established on granular filter media such as sand or ceramic – so, biofiltration essentially uses bacteria to control bacteria.

This study’s outcomes were promising: biofilter water systems showed a significant reduction in the presence of harmful pathogens. If scaled up, this pathogen-management technique has the potential to be used to treat stores of harvested rainwater, ground, and surface waters, preventing the regrowth of bacteria such as E. coli after water treatment. Other practical applications include using biofilters to reduce the biological burden of final sewage discharges, and potentially improving the water quality of inland bathing waters or drinking water supplies.

The full study can be found online in the journal npj Clean Water.

Meet the team: Rosy Heywood

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Rosy Heywood is a Research Associate at The Centre for Print Research (CFPR) at UWE. In this interview, she discusses her work as a sustainable textiles designer & researcher, and her role in the Healthy Waters research cluster.

Could you tell us a bit about your background and how you came to work in your current area?

I studied a MA in Design at UWE, during the pandemic. I started in 2019 and graduated last year, and my tutor, Dr Laura Morgan, was working at CFPR – the Centre For Print Research – which is the department that I’m working in now. She hired me as a Research Associate on a natural dyeing and laser engraved biomaterials project because my MA project was very relevant, I had focused on textiles and sustainable materials and specifically natural dyeing. So, when this project came along with Healthy Waters, it overlapped with the natural dyeing work that I did; you can’t get away from the amount of water and the toxicity of water that synthetic dyes use, so sustainable water management was an area that I was already very interested in.

So, about a month after the project with natural dyes finished, Tavs [Dr Tavs Jorgensen, Associate Professor and AHRC/RCUK Innovation Fellow] got in contact with me about the Healthy Waters project. And I thought, ‘Wow, this sounds exciting’. Ceramics is a slightly new area for me – I did do some on my Master’s, because when you first start you have to do a lot of different workshops in different areas of design – but it’s been really great to be picking up a new skill and starting to become a bit more of an expert in it. Sonny [Sonny Lee Lightfoot, Research Assistant and Product Design Technician] and Tavs have been brilliant, I’ve been able to pick up lots of skills in ceramics. For me, I’ve come into this with my design training and my design thinking, and it’s been amazing to apply that in a new, fresh area.

It’s been really interesting to hear how the arts and science departments have been collaborating on this project. What’s the experience been like for you, leaning further towards the technical scientific elements of the project?

Sadie, a MSc student who has been using our ceramic beads to test for biological filtration, produced a chart of how well our ceramic media did during filtration and it was great to see the results from our combined work; it’s made me really interested in how I can ‘science-ify’ my research and improve that aspect of it. I’m looking into doing a PhD and I’d like to move towards a material science or textile science direction – that’s something which is happening in the CFPR anyway, we have the graphene lab and the researchers based there have great expertise in material sciences.

Sometimes when you’re creative, you get so embedded in the design or art of something, it’s easy to forget other aspects. So when you’re able to merge it with science, it opens up a new way of thinking around design – going forward, this project is definitely going to change the way I think about designing.

You mentioned earlier that you did your masters throughout COVID lockdowns – what was that experience like for you?

It was difficult because it’s a very practical course. A lot of it was things we’d have to be on campus for, to use the workshops. Initially I was doing a lot of digital embroidery, for example, and that had to be done on campus – I can’t just buy a digital embroidery machine at home! So that definitely changed my path into a different area for my Master’s; I came into it thinking I was going to be doing digital embroidery and art installations, which became increasingly more difficult. So, I chose to do something I could do from home: natural dyeing. My work organically grew into more of a research project. Dyeing was something I could do at home and I was really interested in learning more and experimenting with it. I think in a way COVID kind of made me realise a different path that I wasn’t expecting to go on and brought me to where I am now – even though it was a very difficult time to be stuck at home, it forced me to think a lot more about what exactly I enjoyed doing and what I am good at.

It sounds like the new route you’ve been taken down is pretty great – the Healthy Waters project seems to have a lot of potential to make a big difference in the world!

Definitely. At the beginning of my Master’s, I hadn’t thought much about the importance of the work I was creating. I was only thinking, ‘What do I want to create’ rather than considering the bigger picture. But in research, you have to think about an important question that you want to solve and the solutions often involve other people and everything going on around you; I found my focus in sustainability because it’s so important today. What we’re doing now on the Healthy Waters project is creating a very sustainable method of cleaning water and my work with the CFPR is creating ceramic vessels and media for biological filtration.

Your MA focused on sustainable design as well, do you think you’ve always had that drive to protect the environment or has that grown as you’ve encountered a more scientific angle to work?

It’s hard to avoid it – you see so many statistics, and real-life instances, like this heatwave we’re having, and you see the need for sustainable solutions and change all around you. I think before my MA I hadn’t really thought that I could merge that into my design practice but in the project that I did, about natural dyeing, I started trying to create a more circular method of production. I worked on techniques to use plants to dye biodegradable materials. In essence, they could be buried back into the soil to break down, and the dyes could be naturally disposed of since they’re plant-based and non-toxic to the environment – it’s essentially diluted plant waste returning its nutrients to the ground. That research flowed really nicely into what I’m doing now, creating clean water. It’s been fascinating to hear how they test the water, what they find in the water, and how to deal with it – especially biological filtration, which I didn’t know much about as a method of cleaning water before I joined this project.

One of the Healthy Waters project’s aims is to support low-middle income countries with the technology you’re developing – does that add an extra source of motivation for you?

Definitely. It’s those things that are the most motivating in your work; that’s something that I’ve discovered recently in my professional experience as a researcher, but also in my MA: having motivation is so important in your work and working in such a crucial and important area only motivates me more. It’s inspiring, really.

[You can read more about the goals of the Healthy Waters project on their blog post here!]

You’ve mentioned you’d like to go on to do a PhD. What do you hope the future has in store for you in that regard?

That’s something that I’ve been trying to work out for myself because often to get further in academia, you need to do a PhD. I’m working with a few people at CFPR to figure out what I want to do, what I’d want my research question to be – what I’d want to discover, because a PhD is really all about learning and finding something that needs a solution created. It’ll definitely be in the sustainable materials or sustainable textiles range related to that circular economy I mentioned earlier. But the experience I’ve had now on Healthy Waters has been really great, getting to hear from scientists and work alongside them, to have that new experience for my PhD where I can relate scientific backing to my work. I haven’t got a solid answer but my goal is really to stay at the CFPR, to work on more research projects – there’s always more stuff coming up! I’d love to work with more people at UWE, there are so many people with so many different skills and areas of expertise, and I’d love to branch out and work with people from different departments.

You can connect with Rosy on her website and via her LinkedIn profile.

Rivers are Drying Up All Over the World: what can we do about it?

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Image caption: Map 1:  Water level situation of rivers and streams in part of southwestern England (riverlevels.uk)

By Chad Staddon, Sun Shun and Stevie Miller

As of mid-2022, water levels across the world are lowering due to a long-term drying/heating trend.  Rivers in parts of the UK are rapidly approaching low levels not seen since the historic 1976 drought, when the country saw temperatures exceeding 32°C for fifteen days with the nation’s highest ever recorded temperature reaching 35.9°C in Cheltenham. But now, the Met Office has issued its first Red Warning for heat, indicating a danger to life – but it’s not just the intensity of this heatwave that’s raising alarms. The frequency of heatwaves like this across the world speaks to the influence of human activity on global climates; record after record is being broken as years go by and climate change’s results become more apparent.

The impact of new peak temperatures is not just a family trip to the beach or day without rail travel. The worldwide repercussions of rising temperatures can be seen in examples such as Lake Mead, the almost-dry reservoir behind the iconic Hoover Dam in the US southwest, which is perhaps 100 days from being too low to produce hydroelectricity. Historic low flows in many parts of Australia are contributing to ever worsening fire seasons, a troubling pattern also seen as wildfires rage in parts of France, Spain and Portugal.

Here in the southwest of England we are experiencing an intensifying drought trend. The recent heat – as lovely as some summer warmth has been – has been problematic beyond just an uncomfortable lack of air-conditioning. Map 1 seems to show that whilst many stream flows are significantly below baseline averages (red or yellow dots), many seem to be doing okay (green symbols). But a closer look reveals a more complex picture.

Covering only the area around Bristol and Bath, Map 2 shows that even “green” stream flows tend to be only at or near normal levels for this time of year.  Few streams are experiencing rising flows over any time horizon.  Rather than being truly “healthy waters”, our rivers and streams are under a variety of threats that are combining to reduce average flows, impacting flora and fauna and human communities.  

That’s not all: surface stream flows are only part of the story of our drying environment. During June groundwater levels receded in all aquifers – generally either just reaching normal levels or sinking below (with some notably low levels) – reflecting the prolonged period of below average rainfall and increasing soil moisture deficits.  Similarly, reservoir levels fell, and although some increased relative to average (e.g., in western Scotland and Northern Ireland), others in the midlands (Derwent Valley), southwest (Colliford and Wimbleball), and Wales (Brianne and Elan Valley) were significantly lower than average.  Our reservoirs are not yet as dangerously low as Lake Mead, but they are low enough that we may soon have mandatory water restrictions in some areas.

So, what can we do about the parlous state of our water resources? Certainly we must not give in to the temptation to believe that somehow the winter rains will save us, or that if recent years have been drier than average then surely coming years will be wetter and it will all come good. This is “magical thinking” and divorced from what the science of climate change is telling us. The longer-term climate trends suggest that our rains will be ever more unpredictable across the year and because surface and groundwater storage is limited, even periods of heavier than average rain may not help improve our water balance. We must also not sell ourselves the notion that new technologies, such as desalination or wastewater recycling, will save the day.  Both are wonderful technologies, but they require considerable energy and capital inputs as well as producing waste outputs (e.g., brine) that are difficult to sustainably manage.

Really, it is to ourselves that we need to look for solutions to a deteriorating water supply-demand balance. It is said that the “average” water user in the UK uses 140-160 litres per person per day, though our research suggests that the actual range of water use is from approximately 100 to 250 litres per day. By better understanding who is using what volumes of water, for what reasons and under what conditions, it is possible to design demand-reduction policies that are effective and fit for purpose. This is where the future of water management needs to be. This is how we will save our dwindling water sources.

Source: Centre for Ecology and Hydrology (2022) Hydrological Summary for the United Kingdom, June 2022

Safe Water and Antimicrobial Solutions for Resource Constrained Healthcare Facilities

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Written by Dr Gillian Clayton, Centre for Research in Biosciences, Faculty of Health and Applied Science

Humanitarian settings, such as refugee camps, require consistent access to safe, high-quality water, but this can be difficult due to complex supply chains. If supply chains are interrupted or delayed, vital clinical solutions like sterile saline used to wash out wounds, and antimicrobials, such as hypochlorous acid, used to disinfect instruments and wash wounds are essential to ensure patient safety. Typically, clinical fluids (e.g. sterile saline and antimicrobials) are produced, packaged and transported in a ‘centralised’ manner. For example, solutions may be produced in the UK and then held at a storage facility/warehouse, before being transported via land, air and/or sea to the healthcare facility.

However, the Redistributed Manufacturing in Healthcare Network has investigated the potential to allow for clinical fluids to be produced on-site and on-demand, minimising the need for storage and transportation. A proof-of-concept project lead by UWE in collaboration with The Usher Institute (University of Edinburgh), Centrego Ltd, Portsmouth Aqua Ltd, The Royal College of Surgeons of England and Water for People and Peace investigated “The On-Demand Manufacture of Potable & Sterile Water for Emergency Medical, Humanitarian & Healthcare Applications Using Electrochemical Activation Production Technologies”. This project developed, adapted and repurposed Electrochemically Activated technologies for the on-demand production of clinical fluids for healthcare facilities in resources constrained environments. This project demonstrated that simple, low-cost and low-energy technologies can produce sterile solutions from tap or bottled waters, as well as produce a high-quality antimicrobial solution (hypochlorous acid) from a small-scale portable generator. These prototype technologies have shown that remote or resource constrained healthcare facilities can be adaptive and more resilient in a changing world through decentralised production, or redistributed manufacturing.

The low-cost and low-energy small-scale portable prototype generators, designed to produce sterile solutions from tap or bottled waters (top), as well as a high-quality antimicrobial solution (bottom)

New journal article published in Science of the Total Environment

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Written by Bethany Fox, Research Associate in Centre for Research in Biosciences (CRIB)

A new paper has been published in Science of the Total Environment (STOTEN), “A case study: The deployment of a novel in situ fluorimeter for monitoring biological contamination within the urban surface waters of Kolkata, India”.

This paper details the deployment of a novel in situ fluorescence sensor in the urban surface waters of Kolkata. The case study demonstrates the benefit of this technology with recent advances in understanding and technological capability. Using the new sensor, developed by our technology partner Chelsea Technologies Ltd., the team were able to identify a blackwater contamination event in the Hooghly River (Ganga) in Kolkata, India. The team also conclude that the use of this technology would provide information regarding biological water quality in situ and in real-time, important information which is often missing from our current monitoring practices due limited to time consuming and expensive sampling surveys.

This paper is an output from the NERC-DST India-UK Water Quality project which focused on the development and implementation of technologies for improved water quality. Within this project, UWE has been in partnership with Professor Tapan K Dutta and his team at the Bose Institute in Kolkata alongside multiple UK technology partners.

Sensor boat survey and water quality monitoring of the Hooghly River (Ganga) in Kolkata, West Bengal, India.

Changing water dynamics in uncharted regions

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By Dr Kwok Chun

Environmental datasets provide critical information about our physical environment, helping us to monitor progress towards achieving global environmental targets, such as the United Nations Sustainable Development Goals (SDGs). Yet, reliable climate and water data are not available in many parts of the world. In many developed countries, such as the UK and US, there are dense environmental monitoring networks. However, these networks are expensive to establish and maintain. Where on-the-ground data is not readily available, satellite images can help us to fill gaps in data. Moreover, as well as helping us to monitor current conditions it is possible to use remote sensing (RS) datasets to predict future environmental conditions.  Even more to the point, such RS-based analyses can help us understand potential climate change threats to ongoing efforts to achieve SDGs, such as SDG6: Clean Water and Sanitation for All.

For example, in many parts of East Africa, including Uganda, water services development includes options for rainwater harvesting (see Staddon et al, 2018 and Healthy Waters blog, 11/4/2022).  Yet, many climatic factors, such as air temperature, affect household water generation potential from rainwater harvesting as higher temperatures increase water loss from evaporation. If we compare historical air temperature averages (1970-2000) in Uganda with those projected for 2070 (Figure 1), it is clear that without significant change, water loss due to increased evaporation could undermine water harvesting efforts.

Figure 1: Comparison of average historical (1970 to 2000) and projected (2070) temperatures (°C) in Uganda (WorldClim, 2022).

To prevent a global crisis, most governments are committed to keeping the average temperature increase at less than a 1.5°C, yet the projections for Uganda indicate temperatures are consistently expected to increase well above this target (Figure 2). This indicates that country-wide water action is urgently needed.

In regions where the temperature increase is projected to be 5°C or more, this could result in significant evaporation loss (approximately equivalent to the volume of an Olympic-sized swimming pool per year).  Efforts should be focused on collaborating with local communities to combat potential increases in climate change related water stress, especially in Uganda’s Eastern Region, which is expected to see the highest average temperature increase by 2070 (Figure 2).

Figure 2: The projected changes in temperature (°C) between average temperatures taken between 1970 and 2000, and 2070.

A limitation of some modelled environmental datasets is their coarse spatial resolution (e.g. each pixel in Figure 2 is 50km by 50km). This is therefore not high enough resolution to allow for local projections that could inform water planning.  To further explore how possible climate change scenarios will affect local environmental conditions, UWE Bristol staff and intern students have collaborated with the University of Rouen Normandy. This collaboration has allowed the for the creation of numerical models to simulate local weather conditions to better investigate African water issues, that help to provide real-life solutions for problems such as rain harvesting. If such numerical models successfully simulate the regional climate conditions, the team hopes to conduct water trials with local communities to generate safe and healthy waters.

Healthy Waters Research Cluster sets sights on four research challenges

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When it comes to healthy water there is no shortage of challenges – indeed the difficulty is often in finding sufficient focus to not feel paralysed by the extent of problems. In April, UWE Bristol’s Healthy Water Research Cluster did just that. On a Friday afternoon, in a room kitted out for the training of primary educators – complete with thrones and creative mobiles – researchers from across disciplines as varied as engineering, biosciences, creative industries, science communication, economics and supply chain management came together to identify research priorities for the cluster.

Over the coming months, UWE Bristol’s Healthy Water research cluster will be developing the following project ideas:

Managing Water Resources through Smart Landscapes

Data is collected for water systems all over the world by different organisations and for different purposes. The challenge is that these data sets are not integrated and not always accessible – even within a single country let alone across borders. As technology moves on there are additional challenges around integrating data from old technology with that of the new. Imagine having integrated data sets at a landscape level, where industry, government, researchers and communities can interact with data to improve ecosystem resilience, exchange knowledge and engage communities in their local environment.

Management of water quality through community-based value chains in water technology

Innovation in water treatment technologies is important but not enough – we also need to create localised production systems that are sustainable and take into account the whole life cost of the process, including maintenance, final disposal, recycling or reuse.  This workstream focuses on articulating models for creating affordable community-based value chains, that build on the use of local, readily available materials and expertise, employing water technologies such as ceramic filters, rainwater harvesting systems and gravity supply schemes.

Development of rapid water quality assessment technologies

New advances in water quality monitoring strategies are urgently needed for both water catchments and drinking water supplies. Improved temporal and spatial water quality data will require new and multiple real-time monitoring technologies and approaches that enable rapid chemical and biological assessment at a single point-source or through an integrated catchment network. Such data is imperative if effective water quality management frameworks are to be implemented and realised.

Scalable and sustainable water treatment solutions and technologies

Safe water in the context wastewater or drinking water is essential in minimising potential contaminants and pollutants from entering water systems or reducing the possibility of disease in humans. Many current treatment solutions or technologies are centralised in nature, where a large-scale facility will treat vast volumes of water across a large area and then distribute throughout extensive networks where necessary. This is a costly approach to build and maintain and is unattainable for some communities, such as rural communities or communities in low-income countries. Developing scalable and sustainable solutions that are decentralised and can be easily maintained by communities, with minimal resource requirements are key to ensuring waters are reliably treated to a high standard.

The Healthy Waters research cluster is looking to engage with people interested in these projects – other researchers, industry, government agencies, NGOs, community organisations and other stakeholders. Please do get in touch research@uwe.ac.uk for more information.

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