18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
ARA NUSSHOF is a secondary treatment plant serving 135 people in Nusshof, Basel-Landschaft, Switzerland. It discharges 61.28 m³/day of treated wastewater, operating under Swiss water protection regulations.
ARA OLTINGEN is a secondary treatment plant in Oltingen, Basel-Landschaft, Switzerland, serving 267 people with a design capacity of 625 m³/day and an average discharge of 121.2 m³/day.
ARA Pulkau 473 HL is a secondary treatment plant serving 1,058 people in Pulkau, Niederösterreich, Austria. It discharges 670.93 m³/day of treated wastewater.
ARA Roggenburg is a secondary treatment plant serving 164 people in Roggenburg, Basel-Landschaft, Switzerland. It discharges 74.44 m³/day of treated wastewater.
ARA Ruenenberg Sued is a secondary treatment plant in Rünenberg, Basel-Landschaft, Switzerland, serving 135 people with a designed capacity of 317 m³/day.
ARA WINTERSINGEN is a secondary treatment plant serving 312 people in Wintersingen, Basel-Landschaft, Switzerland. It discharges 141.62 m³/day of treated wastewater into the local watershed.
ARA Yspertal 1345 ME is a secondary treatment plant in Altenmarkt, Niederösterreich, Austria, serving 2,189 people. It discharges 964.38 m³/day of treated wastewater, with a designed capacity of 3,420 m³/day.
ARAIA wastewater treatment plant serves Albeiz, Asparrena in Euskadi, Spain. It provides secondary treatment for a population of 2,000 with a designed capacity of 3,700 m³/day.
Aramac wastewater treatment plant in Queensland, Australia, serves a small population of 336 with secondary treatment. It discharges treated wastewater inland, supporting local water quality in the region.
Aramberri wastewater treatment plant in Nuevo León, Mexico, serves a small population of 1,825 with secondary treatment. It operates under Mexican water regulations, discharging treated water into local waterways.
ARAPAHO WWT is a secondary treatment plant serving 748 people in Custer County, Oklahoma. It discharges 302.83 units of treated wastewater daily, with a designed capacity of 340.69 units.
ARAPAHOE WWTP serves the community of Arapahoe, Nebraska, with secondary treatment. The plant has a designed capacity of 454.25 m³/day and treats an average daily flow of 378.54 m³/day.
ARAS DE LOS OLMOS wastewater treatment plant serves the municipality of Aras de los Olmos in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,460.
Aratichanguio wastewater treatment plant in Guerrero, Mexico, serves 1,519 people with secondary treatment. It discharges 172.80 m³/day of treated wastewater, with a designed capacity of 259.20 m³/day.
Aratula wastewater treatment plant in Queensland, Australia, serves approximately 1,275 people with secondary treatment. It discharges treated effluent into local waterways, supporting the region's environmental health.
Arborg Wastewater Lagoon in Manitoba, Canada, serves 702 people with secondary treatment. It discharges 315.10 megaliters annually, supporting local water quality in the Interlake region.
ARBYRD WWTP is a secondary treatment plant serving 509 people in Arbyrd, Missouri. It discharges 242.27 units of treated wastewater daily, with a designed capacity of 299.05 units.
ARCADIA STL is a secondary wastewater treatment plant in Arcadia Township, Carroll County, Iowa, serving 483 people. It discharges treated wastewater into local waterways, supporting the region's water quality.
ARCADIA WWTP is a secondary treatment plant serving 391 people in Crawford County, Kansas. It discharges 147.63 units of treated wastewater daily, with a designed capacity of 162.77 units.
ARCADIA WWTP is a secondary treatment plant serving Arcadia, Nebraska, with a design capacity of 113.56 volume units. It discharges treated wastewater into local waterways, supporting the region's water quality.