Commercial operations launched at world's largest wastewater treatment plant

May 31, 2018

Commercial operations have commenced at the Atotonilco Wastewater Treatment Plant, an important project being developed by Mexico-based Mitsui & Co. consolidated subsidiary Atlatec, together with leading Mexican infrastructure company IDEAL, as well as ACCIONA AGUA, a leading water engineering and operation company in Spain.

As a single plant with a processing capacity of 3.6 million tons per day, the Atotonilco Wastewater Treatment Plant is the world's largest wastewater treatment facility, treating about 60% of the domestic wastewater produced from the metropolitan area of Mexico City, which has a population of over 20 million.

Mitsui has already participated in 12 build-operate-transfer (BOT) projects in Mexico, including wastewater treatment projects for municipalities, and industrial wastewater treatment projects at refineries for Pemex, a Mexico state-owned oil company.
Going forward, Mitsui, together with Atlatec, will continuously strive to contribute to regional communities and environmental improvement in Mexico.

The Atotonilco wastewater treatment plantThe Atotonilco wastewater treatment plant