Recycling and the reuse of industrial wastewater has always been an important need for
water-scarce regions such as Singapore. This will also be beneficial to emerging countries such as
India, China, the Middle East, etc., as it will not only provide water to meet increasing population
growth, but also reduce environmental pollution. With that goal in mind, a demonstration plant to
test industrial wastewater treatment processes was set up in Singapore in 2013. This test plant is
situated at the Jurong Water Reclamation Plant (JWRP), where wastewater from the Jurong
Industrial Estate will be treated. In this test, Mitsubishi Heavy Industries Mechatronics Systems,
Ltd. (MHI-MS) has demonstrated the stability of the treatment process, where the treated water
has a constant CODCr level of 100 mg/l or less. In addition, high water recovery ratios of 60%
using a reverse osmosis (RO) membrane system and 75% using a capacitive deionization system
were obtained in spite of the highly variable qualities of the incoming industrial wastewater. This
report presents the results of this demonstration test, as well as future plans for testing.
