This textbook covers concepts of water treatment and distribution, air pollution, noise pollution and rural sanitation in a single volume. It will serve as an ideal text for senior undergraduate and graduate students in the fields of civil and environmental engineering.

1. INTRODUCTION. 2. SOURCES OF WATER SUPPLY. 3. WATER WELLS. 4. WATER DEMAND. 5. WATER QUALITY AND TREATMENT. 6. COAGULATION AND FLOCCULATION. 7. SEDIMENTATION. 8. FILTRATION. 9. DISINFECTION. 10. WATER SOFTENING. 11. MISCELLANEOUS WATER TREATMENT METHODS-I. 12. MISCELLANEOUS WATER TREATMENT METHODS II. 13. WATER DISTRIBUTION. 14. PIPELINE SYSTEMS. 15. PUMPS AND PUMPING. 16. WASTEWATER COLLECTION SYSTEM. 17. DESIGN OF SEWERS. 18. CONSTRUCTION OF SEWERS. 19. LIFT STATIONS. 20. NATURAL PURIFICATION. 21. WASTEWATER CHARACTERISTICS. 22. PRELIMINARY TREATMENT. 23. PRIMARY TREATMENT. 24. ACTIVATED SLUDGE PROCESS. 25. STABILIZATION PONDS. 26. ATTACHED GROWTH SYSTEMS. 27. ANAEROBIC SYSTEMS. 28. BIO-SOLIDS. 29. ADVANCED WASTEWATER TREATMENT. 30. INDUSTRIAL WASTEWATER TREATMENT. 31. SOURCES OF AIR POLLUTION. 32. METEOROLOGICAL ASPECTS OF AIR POLLUTION. 33. AIR POLLUTION CONTROL. 34. INTRODUCTION TO SOLID WASTE. 35. SOLID WASTE MANAGEMENT. 36. HAZARDOUS WASTE. 37. NOISE POLLUTION. 38. NOISE POLLUTION AND CONTROL. 39. ENVIRONMENTAL IMPACT ASSESSMENT. 40. RURAL SANITATION.