Page 77 - Fundamentals of Water Treatment Unit Processes : Physical, Chemical, and Biological

32 Fundamentals of Water Treatment Unit Processes: Physical, Chemical, and Biological

Water water other and be
Product Quality drinking standards criteria—to established

Meets

Water water

Product Purpose Seawater barrier Municipal drinking

Treatment carbon (hyperfiltration)

Filtration Membranes softening Lime Filtration Activated Membranes

Treatment Treat to NTU mg=L 800 cysts, bacteria, viruses, pathogenic

for Contaminants NTU <0.5 crustaceans NTU <10 mg=L 20–200 mg=L mg=L NTU <0.5 mg=L mg=L NTU <0.5 < TDS mg=L mg=L 300 viruses, mg=L 300 of worms
Contexts of levels rotifers, mg=L 50 levels 40–50 mg=L 800 levels 40–50 mg=L 800 200–300 levels 40–50 mg=L 800 200–300 levels mg=L, 10 200–300 solids mg=L 300 pathogenic solids mg=L 30 levels low cysts, carcinogens

as Examples Turbidity Algae, < TDS Turbidity NO 3 TDS Turbidity NO 3 TDS Hardness Turbidity NO 3 TDS Hardness Turbidity < NO 3 Hardness Fe 2þ ,Mn Suspended BOD Various worms Suspended BOD Possible bacteria, Viruses,
Water (with

Treated mountains in below lower the River below water source m 300 sewage wastes) Wastewater effluent

of Examples River River in River Mississippi alluvium as used riparian some municipal industrial water 21
Purposes Platte Platte Denver Missouri reaches, Platte Denver, several communities aquifer, Denver depth Denver pretreated Metro Denver Reclamation Factory

and South South South by Water
Waters streams as treated inputs diffuse rivers of processes influence

Source such water various by and reaches lower hydrologic water

of degraded discharges the in natural and waste discharges and agricultural runoff surface wastewater

2.6 Combinations Water high-quality lakes water water by with groundwater wastewater municipal
TABLE Source Ambient, and Ambient point-source Ambient degraded Groundwater Deep Municipal Treated