SABESP - Lagoon WWTP Upgrade - Case Study

Challenges for Sabesp
Sabesp is a Brazilian water and waste management company owned by São Paulo state. It is the largest waste management company in the world by market capitalization, providing water services to 26.7 million residential, commercial and industrial users in São Paulo and in 363 of the 645 municipalities in São Paulo State. It provides basic sanitation services, which include all phases (abstraction, treatment, processing, distribution), and the collection, treatment and reuse of sewage. A significant proportion of the Wasteater Treatment Plants (WWTPs) operated by Sabesp are designed for secondary treatment only.

Recently the State of Sao Paulo has suffered from water shortages, as a response to this crisis the government has introduced new, stricter legislation to protect receiving water bodies. As a result, it will be necessary to upgrade many existing lagoons to achieve tertiary treatment standards.