List of largest wastewater treatment plants information
The largest wastewater treatment plants can be defined in several ways.
The largest in term of capacity, both during dry and wet-weathers, is the Jean-R.-Marcotte Wastewater Treatment Plant in Montreal. With full secondary treatment of effluents it would be the Deer Island Waste Water Treatment Plant of Boston. In terms of area occupied it is by far Melbourne's Western Treatment Plant.
Plant name
City
Country
Opening
Year
Dry-weather
capacity (m³ per day)
Wet-weather
capacity (m³ per day)
Area
(km2)
Notes
New Delta Wastewater Treatment Plant[1]
El Dabaa
Egypt
2023
7,500,000
0.32
Holds four Guinness World Records.
Bahr El-Baqar Wastewater Treatment Plant[2]
Port Said
Egypt
2021
5,600,000
0.65
Jean-R.-Marcotte Wastewater Treatment Plant[3]
Montreal
Canada
1984
2,780,000
7,600,000
0.67
Secondary treatment planned for 2023.[4]
Detroit Wastewater Treatment Plant[5]
Detroit
USA
1940
2 460 000
6 435 000
0.53
Wet-weather secondary treatment capacity limited to 3 520 000 m³/day.
Stickney Water Reclamation Plant[6]
Chicago
USA
1930
2 665 000[7]
5 450 000[8]
1.67
Blue Plains Advanced Wastewater Treatment Plant[9]
Washington D.C.
USA
1937
1 450 000
4 073 000
0.62
Secondary treatment since 1959. Enhanced nutrient removal in 2014.
Wastewater treatment capacities are expressed in cubic meters per day. 1000 cubic meters is 1 ML (mega liter). The area occupied by the plants are in square kilometers.
^"New Delta Water Treatment Plant | The Arab Contractors". www.arabcont.com. Retrieved 2023-12-25.
^"Bahr El Baqar Water Treatment Plant | The Arab Contractors". www.arabcont.com. Retrieved 2023-12-25.
^"La Station d'épuration Jean-R. Marcotte". ville.montreal.qc.ca (in French). Retrieved 2016-08-06.
^Stevenson, Verity (2019-11-22). "Montreal finally ready to go ahead with ozonation plant to treat waste water". CBC News. Retrieved 2021-02-23.
^"Detroit WWTP NPDES Fact Sheet". www.michigan.gov. State of Michigan. Retrieved 2016-08-06.
^Tarantola, Andrew (2011-09-30). "Chicago's Stickney Wastewater Treatment Plant Is the Crappiest Place on Earth". gizmodo.com. Retrieved 2016-08-05.
^Shirley, Jolene S. "Boston Harbor Pipe Dreams Come True! USGS Visits the Deer Island Sewage Treatment Plant and a Cleaner Harbor". soundwaves.usgs.gov. Retrieved 2016-08-14.
^"Atotonilco Wastewater Treatment Project". Water Technology. Retrieved 2016-08-06.
^"Hyperion Water Reclamation Plant". www.lacitysan.org. Retrieved 2016-08-06.
^"Курьяновские очистные сооружения.php" (in Russian). Retrieved 2019-01-26.
^"Люберецкие очистные сооружения.php" (in Russian). Retrieved 2019-01-26.
^Service public de l'assainissement francilien (2013). "Usine d'épuration Seine aval" (PDF) (in French). Archived from the original (PDF) on 2017-04-07. Retrieved 2016-08-06.
^"Grundfos is part of the world's second largest wastewater treatment plant | Grundfos". www.grundfos.com. Retrieved 2016-08-05.
^"Treating Hong Kong's wastewater". www.abb.ca. Retrieved 2016-08-06.
^"Stonecutters Island Sewage Treatment Works, Hong Kong". www.biwater.com. Retrieved 2016-08-06.
^"ACCIONA awarded contract for Africa's largest WWTP". www.acciona.com. 2013-11-14. Retrieved 2016-08-05.
^Bureau of Sewerage Tokyo Metropolitan. "Morigasaki Water Reclamation Center" (PDF). www.asianhumannet.org. Archived from the original (PDF) on 2013-01-23. Retrieved 2016-08-06.
^"The Dasherkandi Sewage Treatment Plant undertaken by PowerChina in Bangladesh has greatly improved local environment". Yahoo Finance. 2023-01-04. Retrieved 2023-07-14.
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