Urban groundwater use in Tropical Africa – a key factor in enhancing water security?
Stephen Foster, Anne Bousquet and Sean Furey
Resilience theory incorporated into urban wastewater systems management. State of the art
P. Juan-García, D. Butler, J. Comas, G. Darch, C. Sweetapple, A. Thornton, Ll Corominas
In recent years, the municipality of Skanderborg, located in Eastern Denmark, has experienced increasing and more frequent rainfall resulting in extensive flooding of urban areas. Rainwater accumulation can lead to sewerage overflow and surface water quality degradation, impacts that will be exacerbated by the onset of climate change.
Skanderborg Forsyning has faced public criticism for the poor water quality in lakes, providing an incentive for greater community engagement and targeted efforts to unlock the full value of water. Consequently, the Municipality has developed a climate change action plan to identify vulnerable areas and address flooding.
The Resilient Strategies Guide for Water Utilities provides options for drinking water, wastewater and stormwater utilities to assist them in developing plans that contain strategies that address their specific needs and priorities.
Three emergency cold recovery techniques are presented as a response to heat-waves: subway station cooling, ice production for individual cooling, and “heat-wave shelter” cooling in association with pavement-watering. The cold generation potential of each approach is assessed with a special consideration for mains water temperature sanitary limitations. Finally, technical obstacles and perspectives are discussed.