Los Bajos Wastewater Treatment Plant, Trinidad
ETA was retained to undertake an optimization study for the
existing Los Bajos Wastewater Treatment Plant. The facility treats the produced water from the Petrotrin oil fields and is rated for 3,980 m3/day, however the maximum output for the plant is only 2,830 m3/day. As part of our assignment we evaluated the performance of each treatment process and made recommendations for the required upgrades to restore the full capacity of the treatment plant and to further expand the treatment facility to achieve an output of 5,600 m3/day.
ETA was involved in providing the biological treatment for the expansion of a Sequencing Batch Reactor (SBR) plant in Chile. The existing plant was rated for 60,000 PE and had massive problems with the sludge properties and needed additional capacity due to the influent load. The upgrade of the biological treatment included the deployment of S::Select® technology, that allowed an increase of more than 50% of the existing capacity without any additional bioreactor tanks. The plant has been in operation since early 2019 and the performance has exceeded the expectations.
The Vizcachas Water Treatment Plant supplies 70% of the water supply to Santiago is rated for a capacity of 1,296 MLD. The project is involved with detailed design for renovation and rehabilitation of the plant. One of the challenges is the high quality of treated water especially given varying influent conditions.
The Port Authority of Jamaica (PAJ) retained ETA to complete the design of the Village of Port Royal Sewer Collection System Upgrade. Approximately, 2,000 people live in the village at the present time and the sewage collected at various collection points is either pumped and treated by National Water Commission (NWC) at a regional facility or is discharged without any treatment to the sea. As part of our assignment, ETA designed the upgrades of the sewer collection system to convey the raw sewage to the new Old Coal Wharf Sewage Treatment Plant located approximately 1,500 m from the village.
ETA was retained to design the new sewage treatment plant for the cruise ship terminal at Old Coal Wharf. Originally the facility was planned to treat the sewage generated from the customers disembarking/embarking the cruise ship and the support staff working in the new terminal. During the assignment, an opportunity arose to expand the treatment facility to include the Village of Port Royal located nearby. ETA’s scope included supply of the plant, start-up and commissioning activities
Friendship Housing Development Sewage Treatment Plant, Jamaica
ETA was retained to provide detailed design for process, electrical and automation for the new sewage treatment plant for the Friendship Housing Development in St. Elizabeth Parish, Jamaica. The housing development will consist of 682 units and associated commercial spaces. The new sewage treatment facility is designed for a capacity of 675 m3/day and will involve the Membrane Aerated Biofilm Reactor (MABR) technology. As part of the assignment, ETA will provide all the process equipment (screens, pumps, blowers, UV disinfection, MABR), specialty valves, instruments, electrical MCCs, associated control panels and automation.
Perth 2 Housing Development Sewage Treatment Plant, Jamaica
ETA was retained to provide detailed design for process, electrical and automation for the new sewage treatment plant at Perth 2 Housing Development in Manchester Parish, Jamaica. The new sewage treatment facility is designed for a capacity of 1,880 m3/day and will involve the Membrane Aerated Biofilm Reactor (MABR) technology. As part of the assignment, ETA will provide all the process equipment (screens, pumps, blowers, UV disinfection, MABR), specialty valves, instruments, electrical MCCs, associated control panels and automation.
The Region of Waterloo retained Engineering and Technology Associates Inc. (ETA) to undertake a feasibility study to optimize the Elmira WWTP using innovative technologies, with respect to concerns of sludge bulking, settleability of mixed liquor and biological overload. The main objective was to consider the upgrades to the biological treatment (bioreactors and secondary clarifiers).
Currently the wastewater treatment plant operates at only 58% of the flow and treats the full biological load. As part of the assignment, upgrades were considered that would be required to restore the capacity of the plant at higher influent loads. Upgrades to the bioreactors, secondary clarifiers and aeration system were considered.
As an alternative the Granular Activated Sludge (AGS) as provided by S::Select® was considered.
Based on the capital as well as operation and maintenance costs, the S::Select® technology provided more than 60% savings and it was recommended for implementation
City of Toronto / Region of York Water Supply System, Canada
ETA is supporting the IBI team to maintain and support the City and the Region’s Water Transmission Operations Optimizer (TOO). TOO is based on real-time modeling, prediction and optimization technology. The system was launched in November 2015, and provides reduction in energy used and in costs, while maintaining and improving service delivery.