We wish to sponsor an applicant for a Marie Skłodowska-Curie European Fellowship.
We are looking for a postdoctoral researcher with a highly competitive record, who would prepare an application with us for a European Fellowship, with a view
to joining our research at NUI Galway. You can find more details here.
Our new paper will be in the 15th September issue of Water Research and is available online now.
This week I’ve been visiting Clean Team Ghana, a “sanitation enterprise” based in Kumasi, Ghana. I visited along with colleagues – Alison Parker and Ben Martin – from Cranfield Univeristy. Alison and Ben are involved with a Bill & Melinda Gates Foundation ‘Re-invent the Toilet’ project and they have established solid links with Clean Team.
Clean Team is engaged in the provision of sanitation services to low-income households in Ghana. They are unapologetically focused on the ‘enterprise’ aspect of sanitation; sure – it is motivated by a desire to make big change to sanitation practices, as well as an acute sensitivity to the aspirations and desires of the ‘customers’, but it is also based on the notion that the service should be economically sustainable. The system involves the provision of toilet units to households; the units look like a conventional WC but aren’t plumbed or connected to a sewer; instead, a removable container collects the faecal solids, while urine is diverted away from the collection system.
Clean Team is currently developing treatment systems for the safe disposal of the faecal solids and Cranfield University will test several bioreactor designs in situ at the municipal wastewater treatment site at Kumasi this summer.
This week, we met with the CEO and several of the team at Clean Team Ghana. We visited the Clean Team offices and the collection centre – where all of the containers (which are collected from the toilets) arrive and are combined for subsequent transport to the treatment site. The situation is not ideal, but the team knows this and is working to evolve and improve the approach and system. It’s exciting times at Clean Team!
We also visited the homes of some of Clean Team’s customers. Several people kindly allowed us to enter their homes to view their toilets and to hear about their experiences of using the system and the service. By and large, they are content with their toilets. An absolutely key element of the success of Clean Team, and of any such enterprise, will be the continue listening closely to the views, concerns and aspirations of their customers.
One of the challenges for our Transforming Waste Project in Lusaka will be to integrate our treatment processes with containment, collection and transport aspects of sanitation. I hope that there’ll be interesting opportunities for us and Clean Team to exploit together in the future.
Our ‘Transforming Waste Project’ will be back in Lusaka, Zambia again soon. I’ve been in touch with Lyla Mehta (Institute for Development Studies, Brighton, UK) and Kamal Kar (Chairman, the Community-Led Total Sanitation Foundation) and we’ll visit during the first week of May.
This next phase of our project will focus more on the containment and transport of faecal solids from peri-urban compounds to the site of our planned anaerobic digester at Kanyama.
Meanwhile, we’re moving along with lab- and pilot-scale trails of our new digester technology at Galway. Our nutrient recovery trials are also progressing at Cranfield University. Our pilot-scale trials at Kanyama, Lusaka are planned for the summer.
I’m excited that Lyla and Kamal will join me in Lusaka – their vast experience in sanitation will be invaluable for our various stakeholders meetings. More on this soon.
I had the pleasure of joining Dr Ameet Pinto (@watermicrobe) and Prof Bill Sloan in hosting Professor Nancy Love for dinner last night in Glasgow’s West End (pic.twitter.com/ofKGD9OxpW). Nancy is a WEF Fellow and Professor at the Department of Civil and Environmental Engineering at the University of Michigan, and is currently on sabbatical at the UNESCO-IHE for Water Education, Delft. She was also the main organizer of the really excellent IWA Microbial Ecology & Water Engineering (MEWE) conference we attended last summer in Ann Arbor, Michigan.
Prof Love has had a long career in water/wastewater research, working on many topics and very closely with industrial contacts (http://envbiotech.engin.umich.edu/love/). She is also co-author on ‘Biological Wastewater Treatment’, one of the most-used textbooks in the field (http://www.amazon.co.uk/Biological-Wastewater-Treatment-Third-Edition-ebook/dp/B008RKM9F4).
We had an excellent discussion again this morning, ranging from some of her own work in Ann Arbor and in Ethiopia to our work on our ERC project in Galway and our EPSRC work in Zambia.
I’m looking forward to welcoming Prof Love to Galway during her sabbatical in Europe and also to visiting again soon to Ann Arbor.
Our slow sand filter trial with secondary effluent from a local wastewater treatment plant is coming towards the end. Joseph is maintaining them for a further few weeks to monitor coliform removal and nutrient cycling. He’s been back-washing Manz biofilters and also cleaning our conventional slow sand filters here:
There’s a really healthy biofilm growing in the filters now; there’s excellent coliform removal, lots of protozoa and interesting nutrient cycling. Our next tasks are around analysing DNA and RNA extracts to determine community structure; potential metabolic functions; and gene expression.
We were also sampling today from the River Corrib for Octavi’s slow sand filters (SSFs), which he will feed with river water. His focus is on the mechanisms of coliform removal by SSF biofilms, as well as the persistence of environmental strains of E. coli in the filters – and whether these more successfully evade removal by, for example, protozoan grazing. We’ll work with Dr Florence Abram and Dr Conor O’Byrne on this question.
It was a wet and cold afternoon at the river though:
Octavi’s filters are set up and ready to go next week:
More updates soon.
Thanks to now over 7,500 unique visitors to our lab website and blog. Next time you visit, you can sign up as a follower to receive updates from us on our lab news.
This is our 2014 paper in the Chemical Engineering Journal from our methane-consuming, horizontal-flow biofilm reactor (HFBR) systems
C. Kennelly, S. Gerrity, G. Collins, E. Clifford (2014). Liquid phase optimisation in a horizontal flow biofilm reactor (HFBR) technology for the removal of methane at low temperatures. Chem. Eng. J. 242: 144-154
(Issue: 15th April, 2014)
One of our postgrad students, Sean Gerrity, who has been working on the ecophysiology of gas-oxidising biofilms, has just finished his benchwork.
Sean’s work has been on methane-, hydrogen sulphide- and ammonia-oxidising biofilms in novel, horizontal-flow biofilm reactors (HFBRs). We’ve worked with colleagues in Civil Engineering at NUI Galway on this – the engineers operated the HFBRs and we’ve been investigating the ecology and ecophysiology of the biofilms.
A plastic sheet, from one of the HFBRs, colonised by the slimy, methane-oxidising biofilms
Sean has done sequencing; gene fingerprinting; stable isotope probing; and a range of modified methanotrophic activity assays. He’s currently writing up the papers and we’re looking forward to sharing two papers on methane-oxidisers, and one each on H2S- and NH3-oxidisers, as soon as he can write and I can read!
Keep following for more news on this soon.