WST (B-TECH Civil Engineering 5th)

SECTION-A

Unit-I: Water Quantity: Importance and necessity of water supply scheme. Water demands and its

variations. Estimation of total quantity of water requirement. Population forecasting. Quality and quantity

of surface and ground water sources. Selection of a source of water supply. Types of intakes.

Unit-II: Water Quality: Impurities in water and their sanitary significance. Physical, chemical and

bacteriological analysis of water, water borne diseases, water quality standards.

SECTION-B

Unit-III: Water Treatment: Objectives, treatment processes and their sequence in conventional treatment

plant, sedimentation – plain and aided with coagulation. Types, features and design aspects. Mixing basins

and Flocculation units. Filtration – mechanism involved, types of filters, slow and rapid sand filtration

units (features and design aspects), Disinfection principles and aeration.

Other water treatment processes: Purification processes in natural systems, water softening, removal of

taste and odour, advanced methods of water treatment, deflouridation, dissolved solids removal.

SECTION-C

Unit-IV: Water Conveyance System: Conveyance of water, Intake structures, Rising and Gravity system,

Dual systems, Pumping Systems and pumping stations, valves and appurtenances, pipe materials and pipe

fitting, O&M and trouble shooting for conveyance system.

SECTION-D

Unit-V: Water Distribution System: Layout of Distribution system – Dead End system, Grid Iron system,

Ring system, Radial system, their merits and demerits, Distribution Reservoir- functions and

determination of storage capacity, Water Distribution Network, analysis of distribution network, layout,

capacity and pressure requirements, leak detection, Maintenance, Water supply in buildings and plumbing.