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Novel PV-electrolytic chlorination Proof-of-Concept demonstrated in our Oxford lab
Sophia Motteu, graduate chemical engineer and the latest addition to our growing team, has demonstrated a proof-of-concept electrolytic chlorinator in our Oxford lab. The chlorinator, which could enable water to be automatically treated to within WHO guidelines at the tap, could eliminate dependence on free-chlorine reagents and skilled operators on-site. It could be cheaply produced, and widely deployed at water collection points. Leveraging recent trends in power electronics and benefiting from cheap and widely available PV, the solution could cost-effectively treat viruses as well as bacteria, and provide residual protection against contamination beyond the point of collection.
Community Water Access trials demonstrate 92% reduction in down-time
We have completed Phase 1 of our Community Water project in collaboration with FundiFix Ltd. The project has successfully demonstrated that an Impact Pumps Solution can significantly reduce the downtime and lower the operational costs of providing a community water service, potentially by as much as 75%. These results were made possible by the relative ease with which maintenance issues could be identified and remedied, with almost all serviceable parts located at surface level. As intended, the solar surface pump used during the project was “swapped-out” for a petrol-powered backup on a few occasions due to extended-cloud and demand surges, and swapped for an equivalent solar pump after one instance of surface pump failure.
Construction starts on resilient Community Water Access sites in Kitui, Kenya
Construction work has begun at our two Community Water Access phase 1 pilot sites in Kitui County, Kenya, in collaboration with FundiFix Ltd. This comes off the back of 3 months of delays due to the Nairobi Coronavirus curfew, exacerbated by difficulty in managing this project remotely. Thermofluidics’ role in the project has so far involved providing equipment through our subsidiary Impact Pumps and pioneering a complete installation package and bespoke data acquisition and logging capability.
Piezo-electric microphone traces demonstrate potential for reliable low-cost remote monitoring
We have completed a full characterisation of a PS0 Impact Pump at our U.K. test facility, gathering multi-period time-series traces from piezo-electric microphones at several input data points for each parametric variable. The raw data, hot off the press, shows excellent SNR, including a number of features of known or suspected origin, as well as some unknown periodicity. Post processing over the coming weeks and months will reveal more about what real-world information these encode, with a view to introducing on-site data processing and cheap and robust remote-monitoring in the longer term.
First Impact Pumps go live in Zambia
Our first Impact Pump prototypes in Africa beyond Kenya are installed and lifting water from an open well and a drilled borehole for irrigation on a farm near Ndola, northern Zambia. These are PS0 (Pre-Series 0) prototypes, powered by a Futurepump SF2 and Ennos Sunlight pump, respectively. These units were installed by local plumbers with minimal instruction and will be used to conduct a number of farm-based studies as part of a wider project looking at the introduction of sustainable horticultural practices into the region.