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The impact of research by the University of Southampton into global access to safe drinking water has: (i) provided important evidence for new policy initiatives by the World Health Organisation and UNICEF to promote home water treatment to reduce the 1.9 million deaths each year due to water- related infections, and (ii) stimulated debate among a range of stakeholders, including the media, advocacy groups and UN bodies, by challenging the accuracy of the assertion by the UN Secretary General that the UN Millennium Development Goal for safe water access has been met.
Diarrhoeal disease is the world's second most common cause of death in children under five years old, killing 760,000 children each year according to the World Health Organisation (WHO). Microbial contamination of drinking water is one of the most important causes. In England and Wales acute diarrhoeal disease is estimated to cost the country £1.5 billion annually. UEA epidemiologists have shown the important role of water supply systems in spreading diarrhoeal disease in developed and developing countries; led WHO research projects on small scale drinking water systems; and influenced WHO policy on small scale drinking water systems in developed and developing countries. Methodological research on epidemiological methods for monitoring and regulating bathing water quality has led to changes in WHO guidance on bathing water quality standards and influenced US Environmental Protection Agency criteria. Hunter's participation in international expert panels facilitated the impact of this research on policy.
Re-use of wastewater for irrigation is essential to secure global food security, but it poses serious health risks. Research at the University of Leeds into the effectiveness of wastewater treatment in pathogen removal and the subsequent development of quantitative microbial risk analysis (QMRA) methods now enable governments, regulators and NGOs to assess risks and identify cost-effective re-use strategies. World Bank policy documents and country-level analysis strongly recommend the QMRA approach developed at Leeds. These policy guidelines and analyses have subsequently impacted on many countries' ability to reduce the costs of wastewater treatment and grow more food safely. This impacts food grown for local consumption and export.
New characterisation tools for natural organic matter (NOM) in drinking water are now used as standard practice within water companies such as Severn Trent Water, United Utilities and Yorkshire Water. The tools inform decisions, and help develop strategic plans on catchment management, source selection, treatment optimisation, and disinfection practice. Water companies experienced difficulties in treating high levels of NOM. Cranfield created a novel characterisation toolkit to measure NOM for its electrical charge and hydrophobicity. Also, new techniques for measuring aggregate properties and emerging disinfection by-products have provided a comprehensive analysis. Two novel treatment technologies are currently marketed. These technologies have raised international interest, resulting in industrial development in Australia.
Research has led to improvements in the performance over 16 million water meters manufactured by Elster Metering Ltd. since 2008, extending their working lifetimes and reducing maintenance costs. In particular, research on polymeric replacements for the glass in water meters helped Elster establish their product development strategy, and led to changes in the manufactured meter. Brunel University research identifying a specific set of acetal polymers that reduce the degradation of the bodies in water meters has been incorporated in 1.8 million water meters. These meters have less embodied carbon dioxide, and are less prone to theft than the meter with brass components they replace. This innovation allowed Elster to reduce the costs of manufacturing in the UK, thereby maintaining a strong competitive position within the market for water meters.
This case study describes a series of research projects undertaken by Professor Hulya Dagdeviren from 2004 to 2012 on issues related to the commercialisation and privatisation of water and sanitation services, which involved changes in the control and management of former public utilities. In particular, it focuses on the findings and impacts of the studies in relation to the access and affordability of these services for poor households in the developing countries. The results of these studies influenced the policy directions of international institutions, especially the UN agencies, which play an important role in funding projects and policy advocacy that ultimately shape the national policies of the developing countries.
This case study focuses on the Israeli-Palestinian water conflict within the context of the Oslo peace process. It documents four areas of impact, the underpinning research and associated engagement and dissemination activity having: (1) [text removed for publication] (2) significantly enhanced public and policy understanding of, and debate on, the Israeli-Palestinian water conflict, within Israel, the Palestinian territories and internationally; (3) [text removed for publication] and (4) contributed to the emergence of influential critiques of international policy on water `cooperation'.
Over a million urban dwellers in several developing countries are accessing water services as a result of research undertaken at Loughborough University. National Water and Sewerage Corporation (NWSC), Uganda's main urban water utility, applied the research findings to improve service quality, and extend piped water supply to the previously un-served. During 2008-2011, over 500,000 additional urban residents accessed piped water supply of improved bacteriological and physico-chemical quality — resulting in significant enhancement of health and quality of life (particularly of children). Furthermore, the research benefits were transferred to other countries, through the work of NWSC's External Services Department, extending the reach to other countries including Kenya, Tanzania, India and Zambia.
The virtual water concept is used to identify and quantify water use which is hidden, or embedded within the production and supply of food and other commodities. Its primary application has been to demonstrate that the majority of water consumed globally is used within the production and trade of food. Introduced and developed by Allan, virtual water research has transformed public and private sector water policy and its metrics in the UK and internationally. Instantiated through conceptual work published in 1993 and 1994 and developed through empirical studies thereafter, virtual water was widely adopted by 2000. The idea is now accepted as an essential element in the framing of policy on water security and its economic systems. Virtual water has been increasingly deployed by advisers to governments, corporations and NGOs, below we provide evidence from the U.S. State department, Coca Cola, WWF and the World Economic Forum, this is by no means a complete list. In 2011 the UK House of Lords and UK government's official response urged the EU Commission to incorporate virtual water in EU Policy. In recognition of the global conceptual impact of virtual water, Tony Allan was awarded the Stockholm Water Prize, 2008. In 2013, in recognition of impact made in preceding years through his virtual water concept and research Allan was also awarded the Foundation Prince Albert II de Monaco Water Award and the International Environmentalist Award of the Florence-based Fondazione Parchi Monumentali Bardini e Peyron.
Research at Cranfield has underpinned national policies for managing and allocating the UK's agricultural water resources over the past 20 years. It has supported major reforms in water policy, abstraction legislation and drought management. It has done this by modelling spatial and temporal variations in demand for irrigation, linking this to the financial impacts of water stress on crop yield and quality, projecting future demand, and assessing climate change impacts and potential adaptations. It has also significantly impacted the agri-food sector, helping agribusinesses assess the viability of irrigation and reservoir investment, encouraging collaboration, and reducing risks in the food supply chain.