Sanitary sewer overflow: Difference between revisions

Revision as of 21:22, 7 July 2017

Revision as of 22:08, 6 December 2017

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===Worldwide perspective===

AdvancedDeveloped European countries and Japan have similar or somewhat larger percentages of SSO events compared to the U.S.{{citation needed|date=June 2015}}

In [[developing countries]], most wastewater is still not treated when discharged into the environment. The [[People's Republic of China]] discharged about 55 percent of all sewage without treatment of any type, as of 2001.<ref>"[[World Bank]] Supports China's Wastewater Treatment", ''The People’s Daily'', November 30, 2001, Beijing</ref> In a relatively developed [[Middle East]]ern country such as [[Iran]], the majority of [[Tehran]]'s population has totally untreated sewage injected to the city’s groundwater.<ref>Massoud Tajrishy and Ahmad Abrishamchi, "Integrated Approach to Water and Wastewater Management for [[Tehran]], [[Iran]]", [[Water Conservation]], Reuse, and Recycling: Proceedings of the Iranian-American Workshop, National Academies Press (2005)</ref> In [[Venezuela]], a below-average country in [[South America]] with respect to wastewater treatment, 97 percent of the country’s sewage is discharged untreated into the environment.<ref>Appropriate Technology for Sewage Pollution Control in the Wider [[Caribbean]] Region, Caribbean Environment Programme Technical Report #40 1998</ref>