largest municipal wastewater treatment plant - Sewage Treatment Plant Manufacturers

February 13, 2021

Wastewater Treatment Plant

A Wastewater Treatment Plant is a process or you can say the combination of different processes (Biological, Physical, Chemical) that are used to treat and remove the contaminants from industrial wastewater or sewage to convert it for reusability purposes or to return it into the water cycle with acceptable impact on the environment.

Treated water is safe enough to release it into the environment or reusability (for eg. Gardening, Farming, Cleaning, Toilets, etc.).

Where is the largest wastewater treatment plant?

The largest wastewater Treatment Plants can be categorized on the basis of different terms like- Capacity, Size, Work efficiency during Dry and wet weather, etc.  In terms of capacity and work during both dry and wet weather, is Jean-R. Marcotte Wastewater Treatment Plant in Montreal, Canada opened in the Year 1984.

The Capacity of plants in dry weather is 2780000 m3 per day and during wet weather, it is 7600000 m3 per day. secondary treatment of effluents would be the Deer Island Waste Water Treatment Plant of Boston.

List 5 Largest Sewage Treatment Plant in World

Below listed Top 5 Largest STP Plant, till now it is the largest STP in the world on behalf of their capacity and other major terms. Here you can get the plant name and located City and country name with capacity.

Plant name City Country OpeningYear Dry-weathercapacity (m³ per day) Wet-weathercapacity (m³ per day) Area(km²)
Jean-R.-Marcotte Wastewater Treatment Plant Montreal  Canada 1984 2780 000 7600 000 0.67
Detroit Wastewater Treatment Plant Detroit  USA 1940 2460 000 6435 000 0.53
Stickney Water Reclamation Plant Chicago  USA 1930 2665 000 5450 000 1.67
Deer Island Waste Water Treatment Plant Boston  USA 1968 1438 000 4542 000 0.6
Blue Plains Advanced Wastewater Treatment Plant Washington D.C.  USA 1937 1450 000 4073 000 0.62

Largest STP Plant in India

India's Largest Sewage Treatment Plant | Netsol water Solutions

The Delhi Jal Board (DJB) approved the setting up of a new sewage treatment plant (STP) at Okhla which, it claimed, will be India’s largest stp plant.

This blog post is written by Netsol Water Solution, which is a leader in

the wastewater treatment industry of India. For More Info or Requiremntment of Sewage Treatment Plant, Effluent Treatment Plant, Commercial RO Plant in Delhi, Industrial RO Plant in India, Call At- 9650608473 or wite

Greater Noida


We are the leading Sewage Treatment Plant (STP) Manufacturer & Supplier, in the Delhi-Noida, India.
+ 91-9650608473


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