Plant Capacity: 7,920 m3/day
Project Duration: 8 months (Expected completion by mid June 2021)
Location: Meru, Klang
SOW: Build, Operate & Transfer (B.O.T)
Contract Period: 15 Years
The purpose of this project is to supply treated water to TopGlove factories with the total capacity is up to 7.92 MLD. This plant is design to treat the canal water which is DOE standard B final discharge by using membrane technology; Membrane Bio-Reactor (MBR) and Closed-Circuit Reverse Osmosis (CCRO). Water from the canal will undergo biological treatment first before filtration process in the MBR system. The filtrate water from the MBR will be treated further by CCRO to meet the required water quality. Below is the overall process flow of the system in F3WT:
The treated water supplied to the factories are used for glove production. Therefore, treated water quality have to follow factories requirement which are total dissolve solid (TDS)<100ppm, turbidity < 1NTU, and pH between 6.5 – 7.5.
Due to fluctuation value of TDS from the canal water, CCRO is introduced to treat the water to required quality. In conventional reverse osmosis process, reject water (high TDS water) will be purge out to drain. However, in CCRO, the reject water will not be purged out all the time but the reject water will be recirculating by recirculation pump to feed back into the CCRO system to produce more permeate water. The reject water will be purged out after setpoint have achieved. Because of inconsistent of the water source quality, CCRO will automatically adjust the filtration recovery to ensure permeate water are produced continuously and meet the required quality.
Hence, the CCRO will give flexibility to the system in order to operate continuously and produce required permeate quality consistently. The capability of the CCRO to adjust filtration recovery during fluctuate condition makes its more reliable to be applied for wastewater recycling.