Project

The Council for Development and Reconstruction (CDR), Lebanon, has identified the need for the design of a new temporary/emergency sea outfall to dispose the wastewater generated by the Ghazir/Adma catchment, and estimated to be 47,000 m³/day at year 2040.

The temporary/emergency sea outfall located in the Wata Salam (Tabarja) is expected to terminate few kilometers offshore. At the terminal end of each outfall there will be a diffuser section (s) which will allow effluent to be discharged to the sea to the right diltion level.

This outfall will carry untreated sewage and the requirements to meet particular standards will need further review during the marine modelling studies to ensure compliance with relevant Lebanese Ministry of Environment and the METAP regulations.

Assignment

The Consultant undertook the following supervision tasks:

• Numerical modelling of sea outfall discharges and marine dispersion processes to ensure optimal diffuser design and compliance with environmental regulations;
• Numerical dispersion modelling to determine the dynamics of the effluent plume as an indicator of potential hazard of coliform concentrations at the 300m band from shore;
• Hydraulic design of the marine pipeline and diffuser arrangements in conjunction with the land-based pipeline design;
• Sea outfall stability calculations and stress analysis;
• Sea outfall detailed design.

Project undertaken by KEC team member