
DESIGN OF THE WASTEWATER TREATMENT PLANT CROWN POINT, TOBAGO
In Trinidad and Tobago not all areas have wastewater collection systems and associated treatment plants. One such area is Southwest Tobago.
Trinsult in association with IBI-MAAK and Metcalf & Eddy were retained by the Water and Sewerage Authority (WASA), Trinidad and Tobago to design the new regional Southwest Tobago Wastewater Treatment Plant located in Crown Point to service approximately 3,615 hectares. This new wastewater treatment plant, designed to treat an average daily flow of 12.8 MLD, discharges the effluent through an ocean outfall line over 1 km long. Trinsult provided significant input, including preparation of detailed designs, calculations, drawings, specifications and contract documents for the Southwest Tobago Wastewater Treatment Plant.
The scope of the project included :
• Review and evaluation of existing information
• Verification of design data
• Formulation and selection of design options for the construction of the wastewater treatment plant to achieve maximum efficiency
• Preparation of tender documents and drawings for the construction of the plant
Crown Point Wastewater Treatment Plant receives all wastewater generated in the service area and treats it to an advanced level, which includes biological nutrient removal (BNR) and ultra-violet (UV) disinfection. In addition, as the plant exceeds national standards for discharge to a sensitive environment, a percentage of the high quality effluent cab be reused for urban irrigation for golf courses and industrial estates.