Recent projects with research impact

Smarter pollution control in Scottish water

CWSI is helping to resolve one of the greatest challenges for water providers using flow cytometry – the rapid assessment of microbiological water quality. To help Scottish Water assess the efficiency of disinfection and general water treatment procedures, we are developing an innovative method to promptly assess and monitor microbiological water quality with flow cytometry. The potential applications for this research go well beyond this project, including enumeration of microbes at strategic points in a distribution network to develop a ‘microbiological map’, comparing microbial numbers in distribution systems with chlorine and chloramine disinfection, or assessing the cleanliness of pipes after repair activities.

Out with the old, in with the clean

In response to the UK water industry’s need to reduce elevated levels of natural organic matter in source waters, CWSI developed a novel tool kit that is now routinely used by three UK water utilities. Natural organic matter creates challenges for water companies during their water purification methods. To help manage levels of natural organic matter, CWSI have developed a characterisation tool kit to examine the fundamental properties of organic matter in terms of its electrical charge and hydrophobicity. The tools developed for characterising organic matter and flocs are now routinely used by Severn Trent Water, United Utilities and Yorkshire Water. It thus underpins significant operational activity related to natural organic matter removal.

Recent relevant publications

Autin O, Hart J, Jarvis P, Macadam J, Parsons SA & Jefferson B. (2013) Comparison of UV/TiO2 and UV/H2O2 processes in an annular photoreactor for removal of micropollutants: Influence of water parameters on metaldehyde removal, quantum yields and energy consumption. Applied Catalysis B: Environmental, 138-139,: 268-275.

Autin O, Hart J, Jarvis P, Macadam J, Parsons SA & Jefferson B. (2013) The impact of background organic matter and alkalinity on the degradation of the pesticide metaldehyde by two advanced oxidation processes: UV/H2O2 and UV/TiO2. Water research, 47(6),: 2041-2049.

Autin O, Romelot C, Rust I, Hart J, Jarvis P, Macadam J, Parsons SA & Jefferson B. (2013) Evaluation of a UV light emitting diodes unit for the removal of micropollutants in water for low energy advanced oxidation processes. Chemosphere, 92(6): 745-751