12:00 PM - 1:00 PM Central
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Resource recovery on a large scale: A case study report on how Thermal Processes and beneficial utilization strategies were combined to provide the best design solution for the 360-MGD (16 m³/s) Canoas Water Resource Recovery Facility in the city of Bogotá, Colombia
Presenter: Alejandro Montes Arboleda
“Empresa de Acueducto y Alcantarillado de Bogotá (EAAB)”, the water utility that serves the city
of Bogotá, Colombia, is responsible for the implementation of the Bogotá River Sanitation
Program, along with other local, regional and national governmental entities. EAAB currently
operates the 160-MGD (7.1 m³/s) Salitre WWTP, located on the north end of the city, which was
recently optimized to include secondary treatment and disinfection and to expand its capacity to
the current one (the plant had been operating as a Chemically Assisted Primary Treatment
(CAPT) facility with a capacity of 90-MGD (4 m³/s) since the year 2000, until the recent
optimization/expansion). This plant is responsible for 30% of the city’s wastewater and the design
capacity is set to handle the projected growth and expansion of the northern end of the city up to
the year 2040. Following the experience and lessons learned from the operation of Salitre WWTP,
and with professional engineering services from TYLin (previously Greeley and Hansen) and
Integral S.A (local Colombian firm), EAAB recently completed the Secondary Treatment Design
of the 360-MGD (16 m³/s) Canoas WWTP, to be located in the southern end of the city and
projected to start operation in 2030 (currently under tender for construction). Canoas will treat the
remaining 70% of the city’s wastewater and 100% of the neighboring municipality of Soacha, with
a total service area population of 7.2 million.
The Canoas WWTP Secondary Treatment Design project brings an existing design developed
for primary treatment to the design of full secondary treatment and disinfection facilities. The
secondary treatment facilities designed include activated sludge step-feed aeration, secondary
clarification, and chlorine disinfection. As currently planned, the associated solids train include
sludge thickening, sludge pre-dewatering, thermal hydrolysis process (THP), anaerobic digestion
(AD), biosolids dewatering, beneficial utilization of biosolids and a Biogas Co-generation facility.
Once completed, the Canoas solids train will host one of the two (2) largest THP / AD systems in
the world (comparable to the one installed at the Blue Plains facility in Washington, DC).
IWEA
| 2/25/2025 |    |
