Manila Water’s desludging caravan coming to 46 barangays in parts of NCR, Rizal in June 

Forty six barangays in the East Zone of Metro Manila and Rizal province will have a chance to have their septic tanks siphoned with no additional cost this June, courtesy of Manila Water’s desludging caravan.  Manila Water also guarantees that the septage collected undergo rigorous and careful process to before releasing back to bodies of water, through its 2 septage treatment plants.

MANILA, Philippines – As part of its service obligation and advocacy of making sanitation services easily accessible to communities, East Zone concessionaire Manila Water will bring its desludging caravan to 46 barangays in Metro Manila and Rizal province in June.

Manila Water customers residing in Barangay 764, 765, 767, 769, 775, 776, 778, 790, 791, 796, 798, 877, 878, 879, and 880 in the City of Manila; Barangka Drive, Harapin ang Bukas, Barangka Itaas, Barangka Ibaba, Barangka Ilaya, Malamig, Pleasant Hills and San Jose in Mandaluyong City; E. Rodriguez, Tandang Sora, West Triangle, UP Campus and Roxas in Quezon City; Pembo, Cembo, Guadalupe Viejo and Kasilawan in Makati City; Salapan, Batis and Kabayanan in San Juan City; and Bagong Ilog and Sta. Lucia in Pasig City will have the opportunity to have their septic tanks siphoned this coming June, at no additional cost.

In Rizal, Manila Water’s desludging caravan will go around Barangay San Isidro, San Juan and Sto. Domingo in Cainta; Burgos, San Isidro, and San Jose in Rodriguez; Mambugan and Beverly Hills in Antipolo City; and Barangay Calumpang in Binangonan. 

Manila Water guarantees that the septage collected undergo rigorous and careful process before releasing back to bodies of water.

Currently, the company has 2 septage treatment plants (SpTP), the North Septage Treatment Plant located in San Mateo serves the northern section of eastern Metro Manila, and the South Septage Treatment Plant in FTI Taguig which serves the southern portion of the East Zone. Together, the 2 SpTPs can treat up to 83MLD of wastewater.

Through Manila Water’s septage treatment plants, the wastewater collected undergoes screening, where wastewater passes through mechanical screens to remove sand, grit, and debris.

From there, raw sewage is then lifted by pumps into the head of the treatment process and go through equalization where flow rate is controlled to prevent huge variations in volume, concentration, and temperature.

It is proceeded by primary sedimentation wherein large sediments are allowed to settle to separate clarified water.

Wastewater then flows into tanks equipped with aerators and blowers. Through aeration, the blowers supply oxygen to the tank to sustain the bacteria responsible for decomposition of pollutants.

Wastewater undergoes secondary sedimentation where biological “flocs” are allowed to settle to separate clarified water.

Harmful microorganisms are removed through disinfection by the addition of sodium hypochlorite. The effluent then flows by gravity to the nearest water body.

Properly treated wastewater help revive bodies of water as the effluent quality suits the requirement safe to aquatic and marine life. 

Manila Water also assures that the SpTPs operate in compliance with existing regulatory standards of the Department of Environment and Natural Resources (DENR) and the Laguna Lake Development Authority (LLDA), particularly DAO 2021-19 which sets new parameters for bio-nutrient removal.

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