Coastal & Port/Harbour Projects

Thalayadi site has been selected for installation of seawater desalination plant for the Jaffna-Kilinochchi Water Supply and Sanitation Project (JKWSSP) which is to provide safe drinking water to 300,000 people and improved sanitation to 80,000 people. The freshwater production capacity of the desalination plant is 24,000m3/day with plant recovery of 45%. Further, future expansion of production capacity up to 48000 MLD also checked during the studies. On behalf of ADB and National Water Supply and Drainage Board (NWSDB), GRONTMIJ JV, the Project Engineering and Institutional Consultancy (PEIC) Consultant of JKWSSP, has requested LHI during 2015 to carry out field & modelling investigation and environmental study for the proposed SWRO plant. Under the scope bathymetric & sub-bottom profile survey, water level & current measurements, water sampling & water quality analysis, marine biological survey were conducted. Comprehensive modelling studies (wave climate, hydrodynamic & sediment transport) which relevant to coastal environment were performed to assess the possible impacts due to the construction of SWRO plant and its discharges. Sociological, hydrological, biological, ecological & environmental studies were carried out and comprehensive Environmental Impact Assessment (EIA) report for the SWRO desalination plant was prepared. During 2017, the National Water Supply and Drainage Board (NWSDB) on behalf of ADB, has requested LHI to carry out an additional Field & Modelling Investigation in order to strengthen the findings of the environmental study for the SWRO plant and conduct a supplementary environmental study for the transmission route of desalinated water up to the main transmission line. Further social awareness programme for the proposed SWRO plant was conducted over a period of 1 year to aware the stakeholders of the area