Abstract:
Performance assessment of water supply and wastewater services is
nowadays a major issue. Over the past six years, LNEC has been developing
performance assessment systems (PASs) for water treatment plants (WTPs) and
wastewater treatment plants (WWTPs). In 2009, a national field test was
launched, 'PASt21', coordinated by LNEC and involving 27 plants (10 WTP and
17 WWTP). This paper presents the second generation of the PI system for the
overall performance assessment of WTPs and WWTPs and the PI results
obtained with the data available for 2006-2009. It was concluded that all
indicators of the systems are relevant, and the results show the ability of the
proposed PI systems to assess the overall performance of a given treatment
plant. The aggregated results are very important for the continuous improvement
of the plant performance through benchmarking and targets’ periodic
reassessment.
