introduction to water supply scheme.pptx

introduction to water supply scheme

1. Prof. Mrs D. A. Latthe Assistant Professor Dr. J. J. Magdum College of Engineering, Jaysingpur Introduction to Water Supply Scheme

2. Water Supply Scheme is divided into 3 parts: Data collection for water supply scheme Components and layout of water supply scheme

3. A water delivery system comprises three essential elements: T he source of supply, T he processing or treatment of the water, The distribution of water to consumers Water Source Water Treatment Plant Water Distribution System

4. 1. The source of supply The raw water source for a public water system must have enough water to satisfy urban, institutional, and industrial needs, as well as fire-fighting demand. The most common kinds of water are sourced either from the surface or the ground.  Wide rivers or dams are used to provide surface water; a small stream can even be ideal.

5. Sources of Water Ground water : Open well, tube well/bore well, hand pump are sources which make water available from ground Open Well : Where ground water is available at low depth (less than 15 meters - and water is available all year round, open well is used. Hand Pump : Where safe ground water is available upto 60 m depth, hand pump is ideal choice for a cluster or habitation. Bore Well/Tube Well : Where ground water is at greater depth and open wells or hand pumps are not viable, bore well or tube well is installed . Surface Water : River, pond, dam site are sources where surface water is available.

6. Classification of Water sources based on its Availability

7. Water distribution to the consumer Sedimentation Disinfection Pumped Type distribution Gravity Type Distribution

8. 2. The process of treatment of the water Need for water treatment: Surface water quality may vary since this type of water may contain microorganisms that may or may not include organic or inorganic particles and contain dissolved solids . S urface water may look, taste, and smell undesirable because it may be contaminated with sewage, industrial waste, agricultural runoff, and animal waste.  Conversely, groundwater, although also contaminated because of human activity, is way more clear, lacks color, and has lower concentrations of microbes than its counterpart due to the natural filtration system developed by the earth from the soil, sand, or gravel.

9. Groundwater is better suitable for use in a public water supply – it may only need adequate disinfection to ensure that it is safe for consumption which would depend on the type of contamination present. However, for surface water to become acceptable, it may need a more comprehensive treatment as opposed to ground waters.  Raw water treatment may be performed through the following processes: coagulation, sedimentation, filtration, softening, and removal of iron plus disinfection.

10. Standard Water supply System consist following steps

11. Water supply System for Small area

12. 3.The distribution of water to consumers The distribution system is responsible for the transportation of water from the treatment plant to the would-be consumers . For efficient distribution, it is required that water should reach end use with required flow rate with needed pressure in the piping system.

13. M ain types of distribution system

14. Type of Water Supply

15. Thank You