Note for Environmental Engineering - EE By Amity Kumar

Topics ( 20 )

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ENVIRONMENTAL ENGINEERING-II CONTENTS PART-A Unit-1 Page 7 - 28 1.1 INTRODUCTION 1.1.1 Necessity for sanitation, 1.1.2 Definitions of some common terms used in the sanitary engineering 1.1.3 Methods of domestic waste water disposal 1.1.4 Types of sewerage systems and their suitability 1.1.5 Dry weather flow 1.1.6 Factors affecting dry weather flow 1.1.7 Flow variations and their effects on the design of sewerage system 1.1.8 Computation of design flow 1.1.9 Estimation storm flow 1.1.10 Rational method and empirical formulae of design of design of storm water drain. 1.1.11 Time of concentration Unit-2 Page 29 - 54 2.1 DESIGN OF SEWERS 2.1.1 Hydraulic formulae for velocity 2.1.2 Effects of flow variations on velocity 2.1.3 Self cleansing velocity and non-scouring velocities 2.1.4 Design of hydraulic elements for circular sewers flowing full and flowing partially full 2.2 MATERIALS OF SEWERS 2.2.1 Sewer Materials 2.2.2Shapes of sewers 2.2.3 Laying of sewers 2.2.4 Joints and testing of sewers 2.2.5 Ventilation and cleaning of sewers.

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ENVIRONMENTAL ENGINEERING-II Unit-3 10CV71 Page 55 - 74 3.1 SEWER APPURTENANCES 3.1.1 Catch Basins 3.1.2 Manholes 3.1.3 Flushing tanks 3.1.4 Oil and grease traps 3.1.5 Drainage traps Basic principles of house drainage 3.1.6 Typical layout plan showing house drainage connections 3.1. 7 Maintenance of house drainage Unit-4 Page 75 - 103 4.1 WASTE WATER CHARACTERSTICS 4.1.1Sampling 4.1.2 Significance 4.1.3 Techniques and frequency 4.1.4 Physical, Chemical and Biological characteristics 4.1.5 Aerobic and anaerobic activity 4.1.5 C, N, S cycles 4.2 B.O.D and COD. 4.3 Significance and problems

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ENVIRONMENTAL ENGINEERING-II PART-B Unit-5 Page 104 - 123 5.1 DISPOSAL OF EFFLUENTS 5.1.1 Disposal of effluents by dilution 5.1.2 Self purification phenomenon 5.2 Oxygen sag curve 5.3 zones of Purification 5.4 Sewage farming 5.5 Sewage sickness 5.6 Effluent disposal standards for land, surface and ocean 5.7 Numerical problems of Disposal of effluents 5.8 Streeter Phelps equation Unit-6 6.1 TREATMENT OF WASTE WATER 6.1 Flow diagram of municipal waste water treatment plant 6.2 Preliminary and Primary treatment 6.2.1 Screening 6.2.3 Grit Chambers 6.2.4 Skimming tanks 6.2.5 Primary sedimentation tanks 6.2.6 Design criteria and design examples. Page 124 - 148

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ENVIRONMENTAL ENGINEERING-II Unit-7 Page 149 - 189 7.1 SECONDARY TREATMENT 7.1.1 Suspended growth and fixed film bioprocess. 7.2 Trickling filters 7.2.1 Theory and operation 7.3 Types and designs 7.4 Activated Sludge Process 7.4.1 Principle and flow diagram 7.5 Modifications f ASP 7.6 F/M Ratio 7.7 Design of ASP Unit-8 SLUDGE DIGESTION 8.1 Anaerobic sludge digestion 8.1.1 Sludge digestion tanks 8.2 Design of sludge drying beds 8.3 Low cost waste treatment method. 8.3.1 Septic tank 8.3.2 Oxidation pond 8.3.3 Oxidation ditches 8.3.4 Design of Oxidation ditches 8.4 Reuse and Recycle of waste water Page 190 - 212