Part 13

Decanting valve, 49 Detritus tanks, 23 ” ” capacity of, 23 ” ” Dortmund type of, 25 ” ” sludge scraper for, 27 Dibdin, W. J., 68, 189 Digby meridioniser, 243 Disc sprays, 155, 157 Distribution by flooding filters, 157, 186 ” methods of, 104 Distributors, 106 ” cleaning gear for spray holes of, 119, 122, 125 ” fixed, 143 ” power-driven, 129, 140 ” revolving, 106 ” travelling, 138 Dortmund tanks, 25, 51, 52 Dosing apparatus, 166 ” tanks, 162 ” ” disadvantages of, 160 ” ” necessity for, 159 Drainage of filters and beds, 90, 201 Ducat filter, 144

Effluent settling tanks, 182 Elliott and Brown, 59

“Facile” distributor, 119 Feed channels, 163 “Fiddian” distributor, 127, 138 Fieldhouse tank, 65 Filtering material, 101 ” ” grading of, 103, 204 Fine-grain filters, 185 Fixed distributors, 143 ” sprays, 147 Floating arm, 48 Floor-tiles, 91

Gauge weir penstocks, 233 Grading of material, 103, 204 Gravity disc sprays, 155, 157 Grit chambers (_see also_ DETRITUS TANKS), 23

Haller and Machell, 145 “Hanley” distributor, 140 “Hartley” distributor, 130 “Hodgson” distributor, 127 Humus pits, 182 Hydro-extractor for sludge, 81 Hydrolytic tank, 52 Hypochlorite solutions, 242—247

Imhof tank, 57 Intermitting valves (_see_ DOSING APPARATUS)

“Kessel” tank, 63

Lowcock, S. R., 51 Low-draught syphon, 167

Massachusetts Institute of Technology, 155 Material for filters and beds, 101, 185, 203 Measuring apparatus, 232

Non-septic cylinder, 61

Percolating filters, 85 ” ” aeration of, 86 ” ” capacity of, 222 ” ” distributors for, 106 ” ” floor-tiles for, 91 ” ” floors for, 88 ” ” general design of, 85 ” ” material for, 101 ” ” methods of distribution on, 104 ” ” ” of feeding, 159 ” ” planning of, 98 ” ” sprinklers for, 106 ” ” sub-drainage of, 90 ” ” types of construction of, 87 ” ” walls for, 95 Ponding valve, 178 Power-driven distributors, 129, 140 Precipitation tanks, 47 Preliminary processes (_see_ TANKS, _also_ SLATE BEDS)

Recording apparatus, 234—239 Revolving distributors, 106 Royal Commission on Sewage Disposal, recommendations, 3, 16, 23, 29, 32, 182, 224, 226, 227 Ryder, E. E., 93

Salford fixed spray, 155 Sand-filters, 185 “Scott-Moncrieff” distributor, 130 Screens, 3 ” bars for, 4 ” for deep sewers, 7 ” mechanical, 7 ” ” rake, cleaning gear for, 12, 14 ” rotary, 5 ” simple, 3 “Separator” tank, 65 Sewage mixers, 73 Shone and Ault, 53 “Simplex” distributor, 125 Skegness tank, 59 Slate beds, 67 ” slabs and blocks, 68, 92 Sludge disposal, 71 ” draining beds, 83 ” drying apparatus, 81 ” presses, 75 ” pressing plant, complete installation, 77 ” removal, 25, 28, 35, 71 ” ” apparatus for, 27 ” ” elevators for, 40, 41, 42 ” ” well for, 38 Spray jets, 147 Sprinklers, 106 Stand-by tanks for storm water, 229 Sterilisation of sewage effluents, 240 Sterilising solutions, 242 ” ” apparatus for the manufacture of, 242—247 ” ” ” for the injection of, 247—250 “Stoddart” distributor, 142 Storm-water overflow, diverting plate for, 17 ” ” fixed weirs, 17 ” ” floating weir, 21 ” ” movable weirs, 21 ” ” swinging syphon for, 21 ” ” weirs, 16 ” tanks, capacity of, 227 ” treatment, 227 Strength of sewage, 226 Supply pipes, 163 “Sypho-jet” distributor, 110

TANKS, 29 ” Candy-Whittaker, 60 ” capacity of, 29 ” circular, 25, 51—59, 60, 61, 66 ” continuous-flow settlement without chemicals, 29, 32 ” ” ” ” with chemicals, 29, 32, 47 ” decanting valve for, 49 ” detritus, 23 ” Dortmund type, 25, 51, 52 ” Fieldhouse, 65 ” floating outlet for, 48 ” hydrolytic, 52 ” Imhof, 57 ” inlets and outlets for, 40—47 ” ”Kessel” type, 63 ” non-septic, 61 ” precipitation, 47 ” quiescent settlement without chemicals, 29, 32 ” ” ” with chemicals, 29, 32 ” rate of flow through, 34 ” rectangular, 33, 36, 37, 43—50 ” roofs for, 39 ” ”separator”, 65 ” septic, 29, 32 ” Skegness, 59 ” storm-water, 229 Taylor, W. Gavin, 105 Travelling distributors, 138 Travis, W. O., 52 Trays and troughs, 143 “Triple tank” system, 145

“Venturi” meter, 237

Walls of filters, 95 Waterbury fixed sprays, 155 Watson, J. D., 93, 130 Weirs, fixed volume, 21 “Whirl” spray jet, 149 Willcox and Raikes, 49, 96, 135

MANUFACTURERS OF APPLIANCES

Adamsez, Ltd. Adams Hydraulics, Ltd. Adamson, D. and Co. Albion Clay Co., Ltd. Ames-Crosta Sanitary Engineering Co., Ltd. Blakeborough, J. and Son, Ltd. Burn Bros. Carlton Engineering Co. Enock, A. G. and Co., Ltd. W. E. Farrer, Ltd. Farringdon Engineering Co. Glenfield and Kennedy, Ltd. Goddard Massey and Warner. Ham Baker and Co., Ltd. Harriman, W. and Co., Ltd. Hartley, Causton and Richmond. George Jennings, Ltd. Johnson, S. H. and Co., Ltd. George Kent, Ltd. Birch Killon and Co. Manlove, Alliott and Co., Ltd. Mansfield, H. R. Mather and Platt, Ltd. Naylor Bros. Nixon and Mannock. Oxychlorides (1907), Ltd. Patent Automatic Sewage Distributors, Ltd. Septic Tank Co. Smith, John and Co. Stiff, C. L. Stoddart, F. W. Stott, S. S. and Co. Whitehead and Poole. Wolstenholme, J. and Co.

LONDON: PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, GREAT WINDMILL STREET, W., AND DUKE STREET, STAMFORD STREET, S.E.

ADVERTISMENTS.

THE SEPTIC TANK COMPANY, LTD. 5 Victoria Street WESTMINSTER

For the MOST EFFICIENT AND UP-TO-DATE SEWAGE PLANT OF EVERY DESCRIPTION.

S. H. JOHNSON & Co., Ltd.

_SLUDGE PRESSING MACHINERY_

SLUDGE FILTER PRESSES WITH PATENT PYRAMID DRAINAGE SURFACES, & RATCHET CAPSTAN TIGHTENING GEAR, ALSO PATENT HAND HYDRAULIC CLOSING GEAR, & PATENT HYDRAULIC OPENING GEAR.

SLUDGE FORCING RAMS ORDINARY OR AUTOMATIC SYSTEM. OUR TWIN PRINCIPLE SAVES 50% AIR CONSUMPTION.

AIR COMPRESSORS SINGLE, OR TWO STAGE, HORIZONTAL STEAM AND BELT DRIVEN OR FOR ATTACHMENT TO OIL OR GAS ENGINES. VERTICAL HIGH SPEED FOR ELECTRIC DRIVE.

PRESS CAKE DISINTEGRATORS

PNEUMATIC LIME MIXERS ETC.

ENGINEERING WORKS: CARPENTERS ROAD, STRATFORD LONDON, E.

Telegrams: “FILTRUM, LONDON.” Telephone: EAST 363

THE STODDART CONTINUOUS SEWAGE FILTER

THE BEST FOR LARGE AND SMALL SEWAGE WORKS

OVER 500 INSTALLATIONS AT WORK

F. Wallis Stoddart, Western Counties Laboratory, BRISTOL.

Telephone: 1843 AVENUE (3 lines). Telegrams: “KEESH, LONDON.”

FILTERING MATERIAL FOR SEWAGE BEDS

FRANK KEEP 9 and 10 St. Mary-at-Hill, E.C.

NAYLORS’ PATENT AERATING TILES

USED BY OVER 50 AUTHORITIES. SEVERAL REPEAT ORDERS.

=MATERIAL=—Indestructible Salt-glazed Stoneware. =STRENGTH=—Tested to over 9 tons per sq. yd. without breaking. =COST=—Exceptionally low. =OUTPUT=—2500 sq. yds. per week. =SPECIAL TILES SUPPLIED TO SUIT CIRCULAR AND OCTAGONAL BEDS.=

=EXPORT=—The tiles are easily nested, and works being near ports, shipping orders can be especially well executed.

NAYLOR BROTHERS, DENBY DALE

BURN BROTHERS’ PATENT

Automatic Sewage Disposal Apparatus

Automatic Alternating and Timed Discharge Syphons applied to Contact Filters. Extreme simplicity, absolute accuracy, entire freedom from choking, and no moving parts.

Awarded SILVER MEDAL by the ROYAL SANITARY INSTITUTE.

Patent Automatic Rotary Sprinkler

_Self-clearing Orifices._

Requires attention about once a week or less.

_Sewage Lifts, Valves, Penstocks, etc._

ROTUNDA WORKS, 3 BLACKFRIARS ROAD, Also at EDINBURGH. LONDON, S.E.

Geo. Kent Ltd.

Specialists in the measurement of WATER, SEWAGE & GAS

are at the disposal of SEWAGE WORKS ENGINEERS who desire advice as to the introduction of

EFFICIENT & RELIABLE SEWAGE REGULATING & MEASURING APPARATUS

G. KENT, LTD., 199 HIGH HOLBORN, LONDON.

MECHANICAL SEWAGE SCREENING APPARATUS

(Automatic)

JOHN SMITH & CO. Telephone: 56 Sutton. Engineers, CARSHALTON.

THE MANSFIELD PATENT STONEWARE AERATING TILE FOR FLOORS OF BACTERIA BEDS AND FILTERS

_Manufactured by_ H. R. MANSFIELD CHURCH GRESLEY, BURTON-ON-TRENT

This tile has met with unqualified success owing to its superiority in design over all other tiles. Its advantages have been recognized by leading Engineers, and it has been largely used throughout the Kingdom.

HARD SMOOTH SURFACE, PREVENTING FUNGOID GROWTHS.

EASILY AND QUICKLY LAID WITHOUT SKILLED LABOUR.

See page 93 in this book.

_SUPPLIED TO THE FOLLOWING AUTHORITIES AND SCHEMES_:—

Birmingham Tame and Rea District Drainage Board. Metropolitan Water Board. Corporations of Lincoln, Maidstone, Tunbridge Wells, &c., &c. Crieff Sewerage, Tipton, Wednesbury, Tamworth, Chard, Whitwick, Nuneaton, Enfield, Chesterfield, and many others.

DESCRIPTIVE BOOK OR SAMPLE TILES AND PRICES ON APPLICATION.