Part 1 Teaching Reading Material 1
Unit 1 Sources of Water Supply 1
Unit 2 Combating Water Pollution 6
Unit 3 Water and Wastewater Treatment Methods 9
Unit 4 Composition of Wastewater 17
Unit 5 Sedimentation 21
Unit 6 Filtration 24
Unit 7 Mechanism of Coagulation 27
Unit 8 Carbon Adsorption 32
Unit 9 Water Softening 36
Unit 10 Biological Treatment System 39
Unit 11 Activated Sludge Processes 43
Unit 12 Anaerobic Biological Treatment 47
Unit 13 Tertiary Treatment of Wastewater 52
Part 2 Supplementary Reading material 58
Unit 1 AEROBIC BIOLOGICAL OXIDATION 58
Unit 2 ANAEROBIC FERMENTATION AND OXIDATION 62
Unit 3 BIOLOGICAL NITRIFICATION 66
Unit 4 BIOLOGICAL DENITRIFICATION 72
Unit 5 ION EXCHANGE 79
Unit 6 MEMBRANE FILTRATION PROCESSES 81
Unit 7 ADSORPTION 84
Unit 8 BIOLOGICAL PHOSPHORUS REMOVAL 88
Unit 9 SELECTION AND ADAPTATION 92
Unit 10 SUSPENDED-GROWTH REACTORS AND BIOFILM REACTOR 97
Unit 11 ROTATING BIOLOGICAL CONTACTORS 102
REFERENCES 105