Gujarat has a long coastline of 1,600km, and to meet the growing need for water resources, the state has increasingly adopted desalination technology in recent years. With a capacity of 100 million liters per day, this plant will help supplement the current water supply coming from the Narmada River and a canal, with desalinated seawater. Sangir was selected to produce the diffuser for the outfall pipeline of the Dahej desalination plant. The outfall diffuser required was a massive size of 1,200mm in diameter and 44m in length, making it technically demanding to produce without sacrificing structural integrity and strength.
MEETING THE CHALLENGES OF DESALINATION BRINE DISCHARGE
Desalination produces large quantities of brine and chemicals as by-products, which need to be diluted before being discharged back into the sea, to limit the environmental impact. One such method is to mix it via a diffuser in a mixing zone at the end of an outfall pipeline. For example, once a pipeline containing the brine reaches the sea floor, it can split into many branches, each releasing brine gradually through duckbilled valves. However, diffusers made of conventional materials such as steel are extremely costly, heavy, and prone to corrosion, whilst other materials such as glass-reinforced plastic (GRP) may undermine the integrity of the diffuser assembly.
A SUSTAINABLE, RELIABLE CHOICE FOR DESALINATION OUTFALL PIPES
Sangir Plastics Pvt Ltd, a leading manufacturer of piping solutions in India, was selected to produce the diffuser for the outfall pipeline of the Dahej desalination plant. The outfall diffuser required was a massive size of 1,200mm in diameter and 44m in length, making it technically demanding to produce without sacrificing structural integrity and strength. Having used BorSafe™ HE3490-LS PE100 material successfully for 17 years in numerous intake and outfall lines projects, Sangir Plastics chose it once again for its reliability, to accomplish this rigorous task.
