En­vi­ron­men­tal Eco­nom­ic Ac­count­ing ...

He said this type of cleanout of the backwash tank ... From there, the effluent makes its way into tertiary treatment tanks, where wastewater is strained through large discs that filter wastewater ...

Sewage sludge has been used as fertilizer for many years. Waste water treatment plants produce millions ... The two most common types of PFAS, the ones assessed by the agency, are not manufactured ...