8,299 plants indexed worldwide.
Tertiary treatment, including nutrient removal and advanced filtration.
Heidefeld wastewater treatment plant in Rathenow, Brandenburg, Germany, served 1,308 people with advanced treatment before closure. It had a designed capacity of 4,700 m³/day and discharged 331 m³/day.
Heidenrod _ Kemel is an advanced wastewater treatment plant in Kemel, Hessen, Germany, serving 2,700 people. It discharges 389.11 m³/day of treated effluent.
Heidenrod _ Laufenselden is an advanced wastewater treatment plant in Laufenselden, Hessen, Germany, serving approximately 3,500 people. It discharges 953.42 cubic meters of treated wastewater daily.
Heidenrod _ Nauroth is an advanced wastewater treatment plant in Wisper, Hessen, Germany, serving approximately 2,700 people. It discharges 694.09 m³/day of treated wastewater.
Heiligenbrunn wastewater treatment plant in Hagensdorf, Burgenland, Austria, serves a population of 1,789 with advanced treatment. It discharges 516.91 m³/day and has a designed capacity of 2,500 m³/day.
Heiligenkreuz am Waasen wastewater treatment plant in Steiermark, Austria, serves about 7,059 people with advanced treatment. It discharges 923.11 m³/day and has a designed capacity of 7,000 m³/day.
Heimschuh wastewater treatment plant in Steiermark, Austria, serves 3,457 people with advanced treatment. It discharges 761.36 m³/day and has a designed capacity of 2,323 m³/day.
Hel wastewater treatment plant in Hel, Poland, serves about 5,700 people with advanced treatment. It discharges 811 m³/day of treated wastewater into the Baltic Sea coastal zone.
Helena WWTP and Sewers is an advanced treatment plant in Helena, Ohio, serving a small population of 236. It discharges treated wastewater into the local watershed, supporting downstream water quality.
HELFAUT SE is an advanced wastewater treatment plant serving Heuringhem, Hauts-de-France, France. It treats wastewater for approximately 1,966 people with a designed capacity of 2,000 m³/day.
Helgoland wastewater treatment plant on the North Sea island of Helgoland, Germany, serves 2,161 people with advanced treatment. It discharges 366.75 m³/day and has a design capacity of 6,150 m³/day.
Helmsburg RSD WWTP is an advanced treatment plant serving 471 people in Helmsburg, Indiana. It operates under US Clean Water Act regulations with a discharge volume of 113.56 units.
Helpfau Uttendorf is an advanced wastewater treatment plant in Helpfau-Uttendorf, Oberösterreich, Austria, serving 4,830 people with a designed capacity of 4,000 m³/day.
Hemavan Avlrenverk in Hemavan, Sweden, is an advanced wastewater treatment plant serving approximately 4,284 people. It has a designed capacity of 5,000 m³/day and discharges 672.51 m³/day of treated effluent.
Hemmingstedt wastewater treatment plant in Schleswig-Holstein, Germany, serves about 4,000 people with advanced treatment. It discharges treated effluent inland, contributing to local water quality.
Hemse avloppsreningsverk is an advanced wastewater treatment plant serving 1,410 people in Hemse, Gotland, Sweden. It operates under Swedish and EU regulations with a designed capacity of 2,100 m³/day.
Henagar WWTP is an advanced treatment facility serving 233 people in Henagar, Alabama. It discharges treated wastewater into local waterways, supporting environmental health in DeKalb County.
HENDERSON TWP STP is an advanced wastewater treatment plant in Henderson Township, Pennsylvania, serving 400 people with a discharge volume of 151.42 units.
HENDERSON WWCTS is an advanced treatment plant serving 1,674 people in Henderson, Louisiana. It discharges 832.79 volume units into local waterways under U.S. Clean Water Act regulations.
Hennef Greuelsiefen is an advanced wastewater treatment plant in Hennef (Sieg), Nordrhein-Westfalen, Germany. It serves a population of 2,437 and discharges treated water into the local Sieg river system.