Built Wetlands for Nature Based STP Solutions Built Wetlands for Nature-Based STP Solutions offer a natural way to treat wastewater with low energy use and strong long term gains for the environment. These systems use plants and soil and microbes to clean water in a way that fits well with open spaces and green design. Visit the link: https://www.netsolwater.com/built-wetlands-for-nature-based-stp-solutions.php?blog=7146