Water 21 December 2009 Driving down water loss

Undertaking a water audit is the first step in developing a strategy to reduce water loss from a system, but how can uncertainty in the accuracy of the audit be reduced Paul Fanner from the IWA Water Loss Task Force explains how to validate a water audit through checking meter accuracy, analyzing billing data and identifying illegal connections.

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IN THIS ISSUE...
Hypoxic hopes: signs of progress for the Gulf of Mexico

GLOBAL FOCUS
Water and Climate change: sustaining rivers

NORTH AMERICA
Hypoxic hopes: signs of progress for the Gulf of Mexico
Treating wastewater in the ’world’s worst weather’
Montreal’s plans for a potable overhaul

SEWAGE TREATMENT
Energy optimisation: improving sludge management sustainability
Opportunities to improve energy recovery from sewage sludge
Intensification of anaerobic digestion  towards the energy self-sufficiency of municipal wastewater treatment
The advantages of thermal hydrolysis in sludge treatment
An energy consumption comparison of sewage treatment systems
Increasing sludge capacity by balancing wastewater asset performance
Wastewater sludge management under Austria’s federal framework

PUMPS/ VALVES
Exploiting the energy saving potential of efficient pumping

DESALINATION
Desal delivers a supply boost to Barcelona

PROCESS/ ULTRAPURE WATER
Treatment technology and parts-per-trillion limits
AquaFit4Use: sustainable water use in industry

WATER SUPPLY NETWORKS AND PIPELINES
Driving down water loss: validating water audits for accurate NRW management
Austria’s new guideline for water loses