Membrane and Desalination Technologies - TCE Moodle Website

440 J. Qin and K.A. Kekre
Table 10.3
Typical characteristics of the raw feed water (13)
Parameter Range
Total suspended solid (TSS) (mg/L) 3–26
Aluminum (mg/L) 0.05–0.56
Ammonia (as N) (mg/L) 2–25
Chloride (mg/L) 100–300
Chemical oxygen demand (COD) (mg/L) 30–200
Fecal coliform (cfu/100 mL) 3–15 10 4
Total coliform (cfu/100 mL) 3.8–5.0 10 5
Total bacteria (cfu/mL) 1.1–1.6 10 5
Total alkalinity as CaCO3 (mg/L) 40–160
Total nitrogen (mg/L) 10–50
Total dissolved solids (TDS) (mg/L) 400–1,000
pH 6.5–7.5
Table 10.4
Comparison of the UF product and the target quality (13)
Parameter Quality of UF product Target quality
Range Average
Silt density index (SDI) 1.1–2.1 1.6