Effects of polluting discharges on the Thames Estuary : the reports of the Thames Survey Committee and the Water Pollution Research Laboratory.

  • Great Britain. Thames Survey Committee.
Date:
1964
Catalogue details

Licence: Public Domain Mark

Credit: Effects of polluting discharges on the Thames Estuary : the reports of the Thames Survey Committee and the Water Pollution Research Laboratory. Source: Wellcome Collection.

    637/662 (page 591)
    Crossness, algae off, 175-176 temperature off, 238, 443, 170-171, 240 Cross-sectional area, 4, 1, 396 Cross-sections, transfer of a substance through during one tide, 393-394 variations, chloride, 390, 219 dissolved oxygen, 17, 172, 101, 390 dissolved substances, 390 salinity, 17-19, 390, 395 . suspended solids, 323, 364, 457, 533 temperature, 17, 434-437, 164-167, 234 velocity, 17 Crouch Estuary, deposits, 117 effect of detergents on settling rate of mud from, 387 proposed sewage discharge to, 96 surface-active agents, 387 water, use in experiments, 373, 387 Croydon Sewage Works, 31 Culture media, for sulphate-reducing bacteria, 261-262, 162, 264, 97 Cyanide in estuary water, 529 Cyclotella, 175-176 Dace, 102 Dagenham, aeration experiments in estuary water from, 384, 15] Breach—see Beam River Sewage Works, xxi, 46, 48, 79, 244, 528 composition of crude sewage, 79 composition of effluent, 79, 40, 235 flow, 79, 40, 42 maximum oxygen depletion due to, 1/82 polluting load, 79, 40, 42, 84, 151, 125, 177, 485, 182 Darent, River, 6, 26, 46-47 composition, 47, 45, 25, 336, 137 flow, 46, 19 polluting load, 27, 47, 87, 123, 177 Dartford Creek—see Darent, River DDT factories—see Industrial wastes Deben Estuary, deposits, /17 Dee Estuary, deposits, 117 Deficit ratio at weirs, 335-338 Delaware Estuary, mixing in, 392 Denitrification, 159, 184, 247-255, 407, 569 allowance in calculations of estuary condition, 424, 475-480, 179, 497, 512, 516 assumptions in calculations, 421, 459 course of, 247-249, 89, 152 effect of dissolved oxygen, xviii, 249-253, 153-154, 90, 363, 459, 252, 537 effect of organic nutrients, 249 effect of temperature, 249, 250, 253-254, 156, 9/ effect on dissolved oxygen, 129, 141-143, 516 end-products, xviii—xix, 247-249, 327, 329-331, 133, 341-342 in Dagenham Breach, 44 in mud deposits, xviii, 254-255, 157, 497, 503 505, 537, in upper reaches of estuary, 250 organisms causing, 247-248 rate of, 254-255 Density of bottom deposits—see Bottom deposits, specific gravity De-oxygenating agents, nitrogen, 367 sodium sulphite, 353, 360, 367 Deposition of solids from atmosphere, 243 in estuary (see also Bottom deposits and Mud) effect of movement of L.C.C. outfalls, 506, 515-516 effect on dissolved-oxygen distribution, 457-459, 506-507, 279, 510, 513 effect on polluting loads, 92, 217, 77, 227-228, 326-328, 331-332, 134, 457-458, 469, 177 effect on rate of dredging (see also Dredging), 506, 570 rate of, 327, 506, 570 Deptford Creek—see Ravensbourne Power Station, 428, 232, 157 temperature at, 441-442, 238-240, 171 Depth, aeration, 352-353 of bottom deposits, variation in composition with, 301, 110 of water, in estuary, total, 4, 1 variation of oxygen with, 172, 100, 436 pH value with, 182 salinity with, 17-18, 15, 3, 390 temperature with, 436, 235 Destruction of substances in water, 409, 414-417 Desulphovibrio, 255 Detergents, synthetic, composition, xxii, 386-387, 527 consumption, 386 deterioration attributable to, xxii, 167, 387, 499-500 determination, 376, 574 effect on oxygen balance in estuary, xxii, 526-527, 291 reaeration of estuary, 383, 217-218, 385, 387, 499-502, 1/80, 526-527, 291, 569 fresh water, 376-380, 209-210, 150, 214 saline water, 377-380, 211-213, 217, 383 sewage treatment, xxii, 75 suspended solids, 387 in Acton sewage, 78, 39 in Crouch and Roach Estuaries, 387 in fresh-water discharges, 31, 41, 43, 46, 48 in sewage effluents, 386 in Thames Estuary, xxii, 199, 131, 383, 386, 152 introduction of, 386-387 changes in dissolved oxygen following, 385-387, 499-500, 275 U.O.D. attributable to unoxidizable residues, 222, 232 Deterioration in condition of estuary, 1, 94, 59-63, 129-130, 141, 70, 79, 158-162, 84-89, 164-166, 363 allowance for in regression analysis, 130-131, 57, 139 DEUCE, digital computer, 415, 425-426 Devarda’s alloy, use in nitrate determination, 574 Deviation, standard, definition of, 131 Diatoms in estuary, 174-176, 102, 345 Diffusion of gases between air and water, hydrogen sulphide, 265, 272 oxygen (see also Exchange coefficient for oxygen), 358 Diffusivity, eddy, 393, 395 Dilution, effects of, of effluent before discharge, 534 on substances discharged, 1, 408, 411, 417, 463, 174, 538-539 Dinoflagellates, absence from estuary, 175 Discharges, polluting—see Polluting discharges Diseases attributed to pollution, 94, 96 Dispersion of dissolved substances in estuary, curves for, 395, 221, 224-225, 399 during one tidal cycle, 395-396, 221 during successive tidal cycles, 398, 224 impracticability of direct measurement, 397-399 initial, 469-472, 176-177 result of three simultaneous processes, 395, 398 Displacement by land-water flow, 14, 13, 395, 397-398, 463, 174, 466-467, 472, 535-536, 538 changes in concentration due to, 364-365, 408-410, 415-417, 154 effect of changes in flow, 538-539 loss from estuary due to, ammonia, 217, 77, 329 B.O.D., 329 dissolved oxygen, 339-340, 138, 145 dissolved substances, 329