Sewage Disposal and Air Pollution Engineering [1, 24 ed.]

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ntenance and 5. Sewers, Their Con1tnictlon, Mai / ce en Reqvired Appurt an • 5.1 • 5.2 5.3 5.4 5.5

• 5.6

• 5.7

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• 5.11 , 5.12 ;6.13

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• 5.15

Introdu ction Shapes of Sewer Pipes FORe& Acting on Sewer Pipe• Sewer Material • Laying and T•tinr of Sewer Pipes Sewer Appurtenance

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Cbaraeteri.Uea of Sewa e . g Ph ,a,�I Cbaracteriatica of Sew ap and their Teatin" • C h eauca) Chancte · ti ca Of Sewage and their Tes ting Population Equjva1::, Relative Stability �on of�wage Saaipll! s for Physical and g:� ....,cal Testinr 7·8 Bactanoloei cal C baract. · tia and T eatin1 8. bJ9P01Jn1 of the Sewap Emnv•eata

D Conclltio Fa o n lepo..i by D UvtJon/ 1 ip u v_ untio· ? • �ul by Dilution Standar:or Dil n ,or Discba·•• 0 Wa,tewateni Riven into � Di•pouJ ofWaatewate n in RiYl!ra an d SelC Purification Natural Stre81111 of

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Malateaaac., Cleanin1 and VentillatWn ofS ew era • li.16 Maintenance of Sewen • 6, 17 Cleaninr ofSewen • 5.1 8 VentiUation of Sewer■ 6. Pumps For Lirun1 Sewa,e • 6.1 Naceuity of Pumping Sewage • 6.2 Types ofP umpa • 6.3 Pumpiar Stations 7· Quality aad Cbane&eruti" of Seware 7.1 Importance ofStud¥ 7·2 Decay or Decomposition of Sewage

• 8.1 • 8.2

85 85 85

� Maa hol• Drop Man holes LampHole1 Clean Outs Street lnleta, Called Gullies Catch Baainl or Catdl Pita FIUJhia, Taab Gru1e and Oil Traps Inverted Syphon■ Storm Water ResuJaton or Storm Relief Work&

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9.6 9.7 9.8

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9.10 9.11

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Disposal on Land . Disposal of Sewage Em L----"" uenta on Land for Irrigation . Q�alat • 8.7 y Standards for Wastewat er Effiucnta to be Discharged on Land for Irri gation 'E_ffiue_nt Irrigation' and 'Sl!Wa · 8.8 ge Farming'­ Difference Thereof •8·9 Melhods of Applyinc Sewace Effiuonta to Farms 8.10 Sewage Sickneu •8.11 C�op� grown in Sewage Farms and Thoir Hygienic Aapecta , 8 .12 Dilution Method Vs Land Disposo.l Method for Di,posal of Sewage

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Dispoeal ofWastew3 te . Lakes and Manogomont of rs in Lake Waters Disposal ofWastwate rs in Sea

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9. Treatment ofSewase,/

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CHAPTERS

9.16

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ClaHification of Treatment Proceues

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Screening __..,..... Type■ of Screens, Their Designs and Cleaning Comminuton Diaposal ofScreenings

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in Waste Waten

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Constant Velocity Horizontal Flow Grit Channels Aerated Grit Channels Detritus Tank&

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Grit Removal Basins Settling of Discrete Partic.les (Type I S..dimentation) Grit Chamben

Taalu for Removing Olla and Greue Skimmin1 Tanks Vacuaton DiapoHI ofSkimmia,a Neceuity and Use of Skiaiminc Tanks in India

Sedimoatation� Neceuity of Sedimentation in Treatment ofWute Water Sedimentation T anks (Type• and Designs)

Sedimentation Aided with Coagulation Chemical Precipitation and Coagulatio n 9.17 Merill and Demerits of Coagulation Procell in Sewa1• Treatment of S.w•1• Secondary Tnatmeat throush Biolosical Filtration tion Filtra e Sewq 9. 18 Introduction to 9.19 Contact Beeb for Biological Filtntion of Sewa1e 9.20 lntennitte nl Sand Filten for Biological Filtration ofSewa1e Fil ten for Biological Filtration ofSewage Tricldins 1 �__.9 9.16

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ge nnd its Use in High Rate 9.22 Recirculation ofTrcnted Sewa Trickling Filters rs 9.23 Other Miscellaneous Types ofFilte ation� ment Sedi Secoa.dary k!; 9.24 Secondary Settling Tanks or Humus Ton ndary Sludge Di1e1tion and Dbposal of Primary and Seco ent Cont ture Sludge and its Mois �6 Sludge Digestion Process 9.27 Stages in the Sludge Digestion Process 9.28 Factors alTecting Sludge Digestion and their Con trol 9.29 Sludge Digestion Tanks or Digestors 9.30 Disposal ofDige,ted Sludge 9.31 Use ofLagoons for Disposal ofRaw Sludge Secondary Treatment through Activated Sludge Process 2 Definition ofActivated Sludge Process 9.33 Variom Operations and Units ofan Activated Sludp Plant 9.34 Bulking and Foamini; Sludge in an Activated Sludge Treatment Plant

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9.35 9.36 9.37, 9.38 9.39

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{to . o lmh�ft'Tanks 9.51 Clarigesters

Chlorination ofSe . , .. . wa e 9.53 Di11n fedion ofSewage by uaing Chlo rine� '

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316 318 319 320 322 333 345 346 347 355

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Duign CoruiduotioM Involved in an Activated Sludge Plant

Aeration Tank Loadings Sludge Volumelndex Sludge Recycle and Rate ofReturn Sludge Wasting ofExcess Sludge Modifications ofthe Basic: Activated Sludge Proceas 9.40 Size and Volume ofthe Aeration Tank 9.41 Oxygen requirement ofthe Aeration Tank 9.42 A�antages and Disadvantage, of an Activated Sludge Plant ::: 9.43 Activated Sludge Process Vs Trickling Filter Proceu' and tho Choice ofOno Secoud�Tr tment through Rota ting Biological Contrac�rs � 9.44 Rotating Biological Contrac tors {RBC) Oudation Ponds and Aeration Lag oon · / 9.411 �.da �.on Poncls and Sta \_,,. . biliution Poncls 9.46 �da.tion Ditches (Puveer Type) or Extended eration Lagoon, 9.47 Mechanically Aeria ted Lagoons Anae robic Stabill1ation U i� . 9.48 Anaerobic �-and Facultative Stab T 1 11•tion Ponda Septic Tanu

9.62 High Rate Anaero�ic S ystem,

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CHAPTERS

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10. Procesa Design ofa C omplete �40;;·11ge Treatment Pin nt . 10.1 Hydrnu rIC D cs1g n and D la1Tmg ofn Com plcte Sewa ge Treatment Plant of 1 6 ; · 1LD (Av. Annual Flow) to be constructed at Block I ofDalha usie Township Treatment ,of Industrial w a stewaters 11.1 Introduction 11.2 Methods ofTreating Industrial Wastewaters Pollution Cb aracteriatics ofCer Ty pic al Indian Industries tain 11.3 T hermal Pollution 12. E:11:cn,ta Dispo1al in Un11ewered and Rural Area s 12.1 Gener.a l Introduction 12.2 Privies ofa Conservancy System ofSanitation 13. Sewage Collection from Houses and Buildings 13.1 General Introduction 13.2 General Principles Governing the Dcsii;n ofa Sanitary Plumbing System 13.3 Functions and Types ofTrap;; being used in Sanitary Plumbing Systems 13.4 Sys�ma of Plumbing 13.5 Sewerage Plans of Buildings and Design ofSewer Pi pes 13.6 Testing of House Sewers 13.7 Sanitary Fittings and Other Accessories 13.8 Ventillation ofHouse Drains 13.9 Minimum Sanitary Fixtures Required for Different Types ofBuildinp 13.10 Waste Water Recycling in Buildings 14. Disposal of Municipal and Industrial Solid Wute1 14.1 Definition, Introduction, and Necessity ofSafe Disposal ofSolid Wastes Municipal Solid Waste (l'tlSW) 14.2 Composition and Quantity ofthe Generated .Municipal Solid Waste (MSW) or Refuse 14.3 Collection and Transportation ofMunicipal Solid Waste (MSW) 14.4 Separation for Recycling and Reuse of Plastics, Paper, and Glass from the Municipal Solid Waste (MSW) 14.5 Disposal ofMunicipal Solid Waste (MSW) Industrial Solid Wastes of Industrial Solid Wastes, and Extent of tion 14.6. Classifica s in India, ,, Waste those of Generation Tran,portation, a11u Oisposnl ofIndustrial Storage, 14.7 Solid Wastes

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