INDEX 



355 



Tanks, straining, 152 

 Tanning liquors, 344 

 Temperatures of incubating cultures, 62, 64, 



71 

 ,, of oxygen consumed test, 39 



,, influence of, on bacterial 



action, 242, 275 



Tertiary beds, 190, 224 



Thames Conservancy, 55 

 ,, river, 51, 181, 203 



Thermophilic organisms, 63, iii 



Thermal methods, 194, 242 



Thermal aerobic filter, 242 



Tidal discharge, 19, 20, 21, 170, 317 



Tiles in filters, 236 



Tipping of dust, 196 



Tipping troughs, 268, 305 



Town refuse, 196-201 



Trade refuse and effluents, 12, 36, 55, 333 



Trays, nitrifying, 65, 269 



Treble contact (see Triple contact) 



Trimethylamine, 108 



Triple contact, 224 



Trowbridge, waste liquors at, 346 



Tubercle bacilli [see B. tuberculosis) 



Typhoid bacilli, {see B. typhosus) 



Typhoid from sewage mud-banks, 5 



,, vitality of the bacillus in soils, 14, 



137 

 Tyrosine, 107 



U 

 Ulva latissima, 80 

 Urea, 36, 98, 106, 116, 220 



,, decomposition by chlorine, 182 

 Urine, 5, 11, 27, 331 

 ,, chlorine in, 35 



daily amounts of, 40, 54 

 ,, of animals, 12, 41 

 ,, volatile oil from, 174 

 Utilization of ammonia from sewage, 333 

 ,, effluents agriculturally, 330 



,, gases from sewage, 115, 116, 



259 

 night soil, 10 

 , , sewage and sludge as manure, 



154, 160, 164, 195, 341 

 ,, sewage on land, 132 



,, town refuse, 197 



, , waste products, 335 



V 



V-notch for gauging, 23 

 Valves, control of sewage by {see Distribu- 

 tion) 

 Variations in sewage, 27, 28 

 Vegetable debris and washings, 5, 11, 28, 



IZ2 



Vegetables on sewage farms, 138 



Vegetation, aquatic, 78 



,, growth of, 144 



,, encouraged by effluents, 332 



Venturi meter, 24, 26 

 Vinegar, 193 



Volatile boaies from sewage, 174 

 Volume of sewage and storm-water {see 



Gauging and Flow) 

 Volvox, 80 



W 

 Wanklyn, albuminoid ammonia process, 

 36 

 ,, amounts of solids and of sul- 

 phates, 40 

 Waring's system, 152, 236, 239 

 Warming, artificial, of bacteria beds, 241, 



242 

 Waste, manufacturing {see Trade effluents) 

 Water carriage, 2, 7, 14 



,, closets, 12 



,, cress, 323 



,, exhaled by plants, 138 



I > loggirig of soils, 148 



,, plants, 78 



,, subsoil, dilution of sewage by, 145 



,, supplies, 35, 41 



,, ■ ,, in United States, t8 

 Webster process, 184 

 Weirs, aerating, 258 



,, gauging by, 22 



,, overflow, 312 

 Wells, pollution of, 3, 8, 10, 148 

 Whittaker - Bryant thermal - aerobic filter, 



242 

 Whittaker sprinkler, 242, 294 

 Wimbledon, sewage at, 165 

 Wolverhampton, Lowcock filter at, 238 

 Woody fibre, solution of, no 

 Wool fibre and scourings, 336, 338 

 Worcester, Mass. , sewage, 207, 345 

 Worms in sewage farms, 136 

 ,, water, 77 



" X " nitrogen, 46, 47 

 Xylane or wood-gum, 129 



Yeast, 65 



Yeovil, 93, 343 



York, sewage treatment at, 159, 265 



' Zones of bacteria, 75, 268 

 I Zooglaea, 115 

 ' Zymase, 104 

 Zymosis, 103 



THE END 



BILLING AND SONS, LTD., PRINTERS, GUILDFORD 



