Water Wells and Pumps

Description

A. Dedication -- B. Preface to the second edition -- C. Preface to the first edition -- D. Authors' profiles -- 1. Ground water resources development and utilization -- The hydrologic cycle -- Types of water-bearing formations -- Types of soil water -- Hydrologic units -- Minerals and rocks -- Influence of physiography and climate on ground water availability -- Hydro-geological formations -- Ground water investigations -- Ground water quality -- Types of water wells -- Ground water resource assessment -- Status of ground water development in india -- Artificial recharge of ground water -- Conjunctive use of ground water with canal water -- Legal aspects of ground water management -- Ground water pollution -- References -- Short questions -- 2. Hydraulics of wells -- Definitions -- Aquifer characteristics influencing yield of wells -- Steady state radial flow -- Unsteady state flow -- Pumping tests -- Well interference -- References -- Problems -- Short questions -- 3. Open wells -- Open wells in unconsolidated formations -- Open wells in hard rock formations -- Deepening of open wells -- Increasing the yield of open wells -- Failure of open wells due to excessive pumping -- Sanitary protection of wells -- References -- Problems -- Short questions -- 4. Tube wells and their design -- Types of tube wells -- Selection of the type of tube well -- Plastic pipes for tube well casings and strainers -- Design of tube wells -- Sanitary protection of tube wells -- Design of skimming wells -- References -- Short questions -- 5. Tube well construction -- Construction of bored and driven tube wells -- Tube well drilling equipment and methods -- Percussion drilling -- Hydraulic rotary drilling -- Drilling with down-the-hole hammer and air rotary drills -- Miscellaneous drilling methods -- Choice of drilling method -- Installation of well screens and checking well alignment -- Sealing of brackish and saline aquifer horizons -- References -- Short questions -- 6. Development and testing of tube wells -- Objectives of well development -- Methods of well development -- Use of dispersing agents in well development -- Development of a cavity tube well -- Choice of well development method -- Testing of tube wells -- References -- Problems -- Short questions -- 7. Rehabilitation of sick and failed tube wells -- Evaluation of well performance for diagnosing cause of failure -- Influence of faulty design, construction and operation on well failures -- Photographic evaluation of well failures -- Mechanical failures and use of fishing tools -- Corrosion and incrustation of well screens -- References -- Short questions -- 8. Man and animal powered water lifts and positive displacement pumps -- Manually operated water lifts -- Animal powered water lifts -- Positive displacement pumps -- References -- Problems -- Short questions -- 9. Variable displacement pumps and accessories -- Classification of variable displacement pumps -- Centrifugal pumps -- Friction head in pipe system -- Total pumping head -- Cavitation -- Power requirements in pumping -- Pump characteristic curves -- System head curve -- Selection of centrifugal pumps -- Accessories for horizontal volute centrifugal pumps -- Economical pipe size selection -- Selection of pump drive -- References -- Problems -- Short questions -- 10. Centrifugal pumps: design, installation, operation, maintenance and troubleshooting -- Design of centrifugal pumps -- Centrifugal pump installation -- Centrifugal pump operation -- Maintenance and trouble-shooting -- References -- Problems -- Short questions -- 11. Deep well turbine and submersible pumps -- Vertical turbine pumps -- Submersible pumps -- References -- Short questions -- 12. Propeller, mixed flow and jet pumps -- Propeller pumps -- Mixed flow pumps -- Jet pumps -- References -- Short questions -- 13. Application of non-conventional energy sources in pumping -- Windmills -- Hydro-power -- Hydraulic ram -- Solar pumps -- Biogas -- Unique requirements in adopting non-conventional energy sources in water pumping -- Benefit-cost ratio of pumping plants operated by alternate energy sources -- References -- Problems -- Short questions -- 14. Techno-economic evaluation of projects on wells and pumps -- Technical evaluation -- Availability of ground water resources -- Design of wells and selection of equipment for pumping -- Economic evaluation -- References -- Problems -- Short questions -- A. Appendix a -- B. Appendix b -- C. Appendix c -- D. Appendix d -- Conversion factors.