Economic Sustainability in Wastewater Treatment Companies: A Regional Analysis for the Iberian Peninsula

An important part of environmental degradation is caused by the discharge untreated or mistreated wastewater. The reuse water paramount to National Strategic Plan for Water Supply and Wastewater Sanitation Sector in Portugal Spain. Since centralized treatment systems have proved be inefficient, tackling issues requires a regional approach. plants (WWTPs) mitigate impacts contribute financial savings other firms. However, literature evaluating WWTPs’ performance economic sustainability scarce. implementation resource recovery technology depends heavily on viability. Thus, this paper analyses 222 WWTPs Iberian Peninsula NUTS II regions 2016–2019 assess region with best stability provide policy implications. Using SABI database, research encompasses numerical narrative analysis key ratios. Results show that firms Algarve La Rioja exhibit higher when compared regions. can foster enhancements governance regulated utilities.