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Jakarta Post

Four desalination plants commence operation in Thousand Islands

  • Sausan Atika

    The Jakarta Post

Jakarta   /   Thu, November 21, 2019   /  06:43 pm
The Jakarta Post Image
An official checks a water treatment facility using Seawater Reverse Osmosis (SWRO) technology in the Mandalika special economic zone in Lombok, West Nusa Tenggara.(Antara Photo/Ahmad Subaidi)

In an attempt to deal with water scarcity on Jakarta's outer islands, the city administration inaugurated seawater desalination plants on four islands in Thousand Islands regency on Wednesday. The desalination plants, which use the Seawater Reverse Osmosis (SWRO) system, are located on Payung, Pramuka, Panggang and Kelapa Dua islands. Construction of the plants commenced last year. The SWRO system converts seawater into freshwater by using a semipermeable membrane. The process is energy-intensive as it involves a high-pressure pump. Jakarta Water Management Agency head Juaini Yusuf said other technology called brackish water reverse osmosis (BWRO) was already being used on some islands in the Thousand Islands. "But BWRO use is limited to water for drinking and cooking purposes. Water scarcity is common in the Thousand Islands, especially during the dry season, w...