18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Heiligenstadt_Ofr is a secondary wastewater treatment plant in Heiligenstadt i. OFr., Bavaria, Germany, serving about 2,026 people with a design capacity of 4,500 m³/day.
Heimweiler wastewater treatment plant in Rheinland-Pfalz, Germany, serves about 2,215 people with secondary treatment. It discharges approximately 789 m³/day and has a designed capacity of 3,150 m³/day.
Heineken SA is a secondary treatment plant in Ekurhuleni, Gauteng, South Africa, serving a population of 44. It discharges 6.00 units of treated wastewater into local water bodies.
Heldenstein wastewater treatment plant in Weidenbach, Bavaria, Germany, serves 1,250 people with secondary treatment. The plant is closed and discharges 930 m³/day.
HELECINE wastewater treatment plant in Neerheylissem, Belgium, provides secondary treatment for a small population of 997. It operates under EU Urban Waste Water Treatment Directive standards.
HELEN LAS is a secondary wastewater treatment plant in White County, Georgia, serving a population of 334. It discharges 113.56 volume units daily with a designed capacity of 151.42.
Helena WPCP is a secondary treatment plant serving 1,150 people in McRae-Helena, Georgia. It discharges approximately 530 m³/day of treated wastewater into local waterways.
Helena WWT is a secondary treatment plant serving 443 people in Alfalfa County, Oklahoma. It discharges 189.27 cubic meters of treated wastewater daily, operating under U.S. EPA and Oklahoma DEQ regulations.
HELENWOOD STP is a secondary treatment plant in Helenwood, Tennessee, serving 700 people. It discharges 151.42 thousand cubic meters per year and operates under US EPA NPDES regulations.
Helleneset wastewater treatment plant serves 1,420 people in Bergen, Norway, with secondary treatment. It discharges treated effluent near the coast of Vestland county.
Helmer Sewage Treatment System serves 32 people in Helmer, Idaho, with secondary treatment. The plant discharges 15.14 megaliters annually and has a designed capacity of 53.00 megaliters.
Helmstadt wastewater treatment plant serves Holzkirchhausen, Germany, with secondary treatment for a population of 2,507. The plant has a designed capacity of 5,500 m³/day and discharges 646.06 m³/day.
Hemberg wastewater treatment plant serves the Neckertal area in St. Gallen, Switzerland. It provides secondary treatment for a population of 678 and has a designed capacity of 1,133 m³/day.
Hemingbrough STW is a secondary treatment plant in North Yorkshire, England, serving approximately 2,133 people. It discharges treated wastewater into the local water environment, contributing to the Ouse and Humber catchment.
Hemingford WWTP is a secondary treatment plant serving 1,214 people in Box Butte County, Nebraska. It discharges 340.69 million gallons per year and has a designed capacity of 302.83 million gallons.
Hemingway WWTP is a secondary treatment plant serving about 2,400 residents in Hemingway, South Carolina. It discharges treated wastewater into local waterways within the Pee Dee River basin.
HEMPNALL STW is a secondary treatment plant serving 2,349 people in South Norfolk, England. It discharges treated wastewater into local watercourses, contributing to the region's water quality management.
Henderson County Westover wastewater treatment plant serves 605 people in Henderson County, Tennessee, with secondary treatment and a designed capacity of 37.85 units.
Henderson Lagoon East is a secondary treatment plant in Jacks Creek, Tennessee, serving about 2,000 people. It discharges treated wastewater into local waterways, supporting the region's water quality.
HENDERSON STL is a secondary wastewater treatment plant serving Henderson, Iowa, USA. It processes approximately 75.71 m³/day of wastewater with a designed capacity of 113.56 m³/day.