Title SWRO Plant Overview ✅

MMP Copyright@2021 All Rights Reserved ‐ Confidential 1 MMP Nickel Smelter SWRO Plant Overview
MMP Fresh Water Requirement 2 MMP SWRO Plant Overview Item Unit Water Quality control index (from ENFI) pH (25°C) 6.0 ‐ 9.0 Total Suspended Solid (TSS) mg/L ≤ 10.0 Turbidity NTU ≤ 5 BOD mg/L ≤ 10.0 COD mg/L ≤ 60.0 Total Ferrum mg/L ≤ 0.5 Total Manganese mg/L ≤ 0.2 Cl‐ mg/L ≤ 100 Calcium Hardness (as CaCO3) mg/L ≤ 100 Total Alkalinity (as CaCO3) mg/L ≤ 200 Ammonia Nitrogen (NH3 ‐ N) mg/L ≤ 5.0 (For copper alloy heat exchanger ≤ 1.0) Total Phospor (as P) mg/L ≤ 1.0 Total Dissolved Solid mg/L ≤ 700 Free Chlorine mg/L 0.1 ‐ 0.2 (for terminal of filling water pipe) Petroleum mg/L ≤ 5.0 Total Bacteria mg/L < 1,000 BED calculation (MMP001‐000‐WS‐DWG‐5001_Rev B) m3/day Make up Process water (Slag granulation using sea water) 4,967 Jetty water 519 Domestic water 116 Fresh water consumption (RO output requirement) 5,602
MMP Fresh Water Supply Background 3 MMP SWRO Plant Overview The nearest source of water is Sungai Tempadung just behind the mangrove area on north side of MMP site. This condition is considered to be very challenging in term of permit to exploit this water. Other available source of water is deep ground water (> 200m depth) inside MMP site area. Geoelectric study shows that it is salty water because of intrusion of sea water. Closest potential source of water is Wain River located at about 20km. Water supply for MMP Nickel Smelter was then decided to be sourced from sea, treated with Reverse Osmosis (RO) plant. EPC contract for a 6,210m3/day fresh water SWRO plant was awarded to PT Gapura Liqua Solution (GLS) on 11 July 2023.
MMP SWRO Plant : Location 4 MMP SWRO Plant Overview MMP SWRO Plant is to be located inside Utilities area at north‐east side, next to Process water tanks and Domestic water tank. Foot print will be 1,473m2 approximately (including area reserved for future BWRO)