Parameter Membrane permeate
Feed pH 8.06
Feed EC (µS/cm) 3380
Feed Conc. -TDS (ppm) 2010
Temperature (°C) 22
Vol. of feed water (L) 5
Chloride (ppm) 921.7
Fluoride  (ppm) 2.18
Hardness  (ppm) 192
Calcium  (ppm) 152
Magnesium  (ppm) 40
Alkalinity  (ppm) 168
Iron  (ppm) 0.90
Sulphate  (ppm) 145.6
Turbidity NTU 4.0
Table 3: Physico-chemical Analysis Reject waste water used as feed for RO system.