Environmental Engineering FOURTH EDITION

484 ENVIRONMENTALENGINEERING

Turbidity of water. See also Suspended
sediments, 68,92, 135, 148
Wbulence, 140,173,306,369
Tympanic membrane, 437-438
Typhoid, 100
Qphus, 25 1

U.S. Coast Guard, 346

U.S. Congress, 4, 14,341-342,

U.S. Department of Agriculture, 240

U.S. Department of Commerce, 346

U.S. Department of Engergy, 16,332,

U.S. Department of Interior, 343

U.S. Department of Transportation, 297,

U.S. Geological Survey, 335

U.S. Public Health Service, 170

Ultimate oxygen demand, 62-64,90

Universal Soil Loss Equation (USLE).

See also Revised Universal Soil Loss

Equation, 236,240

Uranium, 313,322,325-328,33&335

mining waste, 325-326

User charges, 25,27-28,304

413,417

335,368

299,346,443

Vacuum filter, 95,218

van der Waals force, 136

Vehicle emissions. See Control of vehicle

Velocity head of water, 121

Venturi scrubbers, 394

Wnyl chloride, 41,309

Viruses, 52, 101, 143

Viscosity of fluid, 120-121

V-notch weir, 174

Volatile organic compounds

Volatile solids, 95,208,210,212-213

emissions

control, 403

Washout of pollutants, 370

Waste activated sludge, 184, 191, 199,

Waste exchanges, 302

Waste Isolation Pilot Project, 336

205,210

Waste stabilization ponds, 299

Wastewater, 2

central treatment, 171-200

characteristics, 167-169

collection of, 153-166

onsite treatment, 169-171

primary treatment, 172-182

quantities, estimation of, 153-154

secondary treatment, 182-195

tertiary treatment, 195-200

treatment costs, 25-28

Water closet, 153,170

Water horsepower (WHP), 130

Water pollution

effects of, on groundwater, 73-75

effects of, on lakes, 7&73

effects of, on oceans, 75-76

effects of, on streams, 60-70

sources, 5 1-54

water quality measurement, 81-106

Water quality. See also Water pollution, 2,

10,22,53-54,64,73,81-106,243-248,

342-345,346-347

sources, 107-119

transmission, 119-132

Water table, 109

Water treatment, 135-152

Weber-Fechner Law, 427

Wells, drawdown of, 112-115

Wet collectors (scrubbers), 394

White noise, 429

Wind motion, 353-354,362

Wind rose, 353-355

Wind speed, 108,354356,366-367

Windrows, 290-291

Wood pulping waste, 91

Water supply, 2

Yellowcake, 326

Yield, 109, 188-189, 192,206,209,

222-223

Zeta potential, 136

Zinc, 135,266,275

Zoning, 295,341

Zooplankton, 71-72