Water Quality Monitoring and Hydraulic Evaluation of a Household Roof Runoff Harvesting System in France

Abstract

ter quality monitoring and hydraulic evaluation of a household roof runoff harvesting system in France. Water Resources Management, Springer Verlag, 2012, vol. 26, pp.2233-2241 AbstractThe quality of harvested rainwater used for toilet flushing in a private house in the south-west of France was assessed over a one-year period. Twenty-one physicochemical parameters were screened using standard analytical techniques. The microbiological quality of stored roof runoff was also investigated and total flora at 22°C and 36°C, total coliforms, Escherichia Coli, enteroccocci, Cryptospridium oocysts, Giardia cysts, Legionella species, Legionella pneumophila, Aeromonas, and Pseudomonas aeruginosa were analysed. Chemical and microbiological parameters fluctuated during the course of the study, with the highest levels of microbiological contamination observed in roof runoffs collected during the summer. Overall, the collected rainwater had a relatively good physicochemical quality but variable, and, did not meet the requirements for drinking water and a microbiological contamination of the water was observed. The water balance of a 4-people standard family rainwater harvesting system was also calculated in this case study. The following parameters were calculated: rainfall, toilets flushing demand, mains water, rainwater used and water saving efficiency. The experimental water saving efficiency was calculated as 87 %. The collection of rainwater from roofs, its storage and subsequent use for toilet flushing can save 42 m 3 of potable water per year for the studied system.

Optimal Sizing of Rainwater Harvesting Tanks for Domestic Use in Greece

“…These countries include Australia (van der Sterren et al 2012), Brazil (Ghisi et al 2009), Canada (Despins et al 2009), China (Li and Gong 2002), France (Vialle et al 2012), Greece (Sazakli et al 2007;Gikas and Tsihrintzis 2012), India (Dinesh et al 2006), Indonesia (Song et al 2009), Iran (Fooladman and Sepaskhah 2004), Jordan (Abdulla and Al-Shareef 2009), Malaysia (Lariyah et al 2011), Namibia (Sturm et al 2009), Palestine (Al-Salaymeh et al 2011), Singapore (Appan 1999), South Africa (Kahinda et al 2007), South Korea (Song et al 2003), Spain (Domènech and Saurí 2011), Sweden (Villareal and Dixon 2005), Taiwan (Chiu et al 2009), the United Kingdom (Fewkes 1999a), the United States (Jones and Hunt 2010) and Zambia (Handia et al 2003).…”

Quality and seasonal variation of rainwater harvested from concrete, asphalt, ceramic tile and green roofs in Chongqing, China

“…In recent years, fresh water availability has become one of the main issues facing humankind (Vialle et al, 2012). With rapid urbanization, industrialization and population growth, drinking water availability has decreased.…”

Evaluation of physicochemical and trace metal qualities of rainwater in the south-eastern region of Bangladesh

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