West Zone concessionaire Maynilad Water Services Inc. is spending over P3 billion to upgrade 17 of its existing 22 sewage treatment plants (STPs) over the next five years.
The upgrade program also involves adding treatment processes in these STPs to enhance nutrient-removal capability, in compliance with the revised effluent standards of the Department of Environment and Natural Resources (DENR), which set more stringent wastewater treatment guidelines.
Maynilad said by 2027, all its 22 existing wastewater treatment plants which have a combined treatment capacity of around 684,707 cubic meters of wastewater per day will be upgraded to conform to the improved DENR standards.
The company said its Parañaque water reclamation facility which is currently its biggest STP in terms of volume output is already compliant with the stricter DENR effluent standard.
Maynilad’s wastewater treatment facilities remove harmful substances from the wastewater generated by customers before it is discharged to receiving bodies of water.
The upgrade of these 17 STPs is part of Maynilad’s P178-billion wastewater management spending plan from 2023 to 2046, which aims to expand sewer coverage and manage pollution loading in bodies of water.
Also included in this program are the construction of 18 new STPs in different areas within its concession area and the installation of around 360 kilometers of new sewer lines that will catch and convey used water from households to STPs, among other wastewater-related projects.
