The document focuses on identifying the economic, financial and environmental benefits of wastewater recycling from the perspective of public spending. Also provides information on the evolution and current practices of wastewater recycling internationally and the international and national regulatory and policy frameworks that guide wastewater recycling. It presents possible strategies for city and state planners and policy makers to initiate the discourse on wastewater recycling and reuse.
Resource Theme: Water efficiency
The Roadmap to a Low-Carbon Urban Water Utility
An international guide to the WaCCliM approach
The Roadmap to a Low-Carbon Urban Water Utility presents utility managers with an approach to address their most pressing challenges, while reducing carbon emissions through
measures that either have a return on investment through energy or water savings, or that correspond to planned investments as part of the asset management plan to maintain or improve their services. Utilities adopting this approach are contributing to a carbon-neutral future, by instigating a change of mind-set, not only in urban water management but also by inspiring all other urban services through sharing the risks and the urgency to act to avoid aggravated impacts of climate change, of which water utilities are among the first victims: water scarcity, flooding and deteriorated water quality
Uso seguro del agua para el reúso
Gives a broad picture of wastewater treatment and reuse; its safe use as a fundamental aspect in water efficiency and security; technologies and biological processes for the treatment of wastewater destined for reuse, policies and regulations for the reuse of wastewater in some countries of Latin America (document is in Spanish).
Separating sewage from rainwater in Vancouver
Vancouver is working toward the Province of BC’s environmental goal to eliminate sewage overflows by 2050. As the City replaces combined sewer systems with separated sewer systems, properties will also need to have separated sewer systems.There are two sewer separation programs running concurrently in the City. The overall sewer mains are being separated so that storm drains carry stormwater runoff separately from other wastewater.
Strategic alliance for water loss reduction
On this website you will find background information, know-how and best practices on the reduction of water loss from supply networks.
It also provides downloadable guidelines for the sustainable planning and implementation of water loss reduction projects and also offers several training modules.
Control and mitigation of drinking water losses in distribution systems
Control and mitigation of drinking water losses in distribution systems.
Water loss management: A case study in Korea. Water Practice & Technology
A case of water loss management on a small city whose water supply is approximately 34,000 ?/day is examined. Revenue water ratio was just 55% mostly because of water loss caused by old pipes and difficulties in pipeline management in the beginning 2004. From 2005 to 2006, 50 km of pipe was replaced due to leaks, poor resultant water quality, blockage or corrosion. In all the new pipes, water meters and valves were replaced as well. This has already led to water savings, and the city plans to continue maintaining and replacing pipes as needed. Overall, through systematic management and rehabilitation/replacement of pipelines, water leakage has decreased dramatically, and the revenue water ratio has increased from 55% to 70% in just 2 years.
Micro-turbines on drinking water treatment plant in France (Super Rimiez)
Microturbines installed on drinking water supply network allow converting the hydraulic potential energy loss resulting from this hydraulic design into electrical energy. The drinking water treatment plant of SUPER RIMIEZ is located higher than the customers leading to an excess pressure (>17 bars) at domestic network inlets. Installation of 4 micro-turbines on drinking water supply network: 4.5 million kWh/y generated.