WELCOME
M.S.S’S POLYTECHNIC NAGEWADI JALNA
Civil Engineering Department
Rainwater Harvesting
Presented by
Tirthraj .V. Bhore
Vaishnavi .S. Jadhav
Om .B. Dudhatkar
(Guidance By)
Prof .V.V. Mehetre
(HOD Of Civil. Dept)
Prof.R.L.Kados
CONTENT
1. Introdution of Rainwater Harvesting
2. Advantages of rainwater harvesting
3. Disadvantages of rainwater harvesting
4. Literature Review: Rainwater Harvesting
5. Methodology of Rainwater Harvesting
a) Roof Top Rainwater Harvesting Method
b) Surface Runoff Rainwater Harvesting Method
6. Results of Rainwater Harvesting
7. Conclusion of Rainwater Harvesting
Introdution
• Rainwater harvesting is the process of collecting and storing
rainwater for future use.
• It involves capturing rain from rooftops, surfaces, or catchment areas
and directing it into tanks, wells, or underground reservoirs.
• This method helps reduce dependence on groundwater and
municipal water supply.
• It is an eco-friendly and cost-effective technique to conserve water.
• Rainwater harvesting can be implemented in both urban and rural
settings.
• Rainwater harvesting is the process of collecting and storing rainwater
for future use.
• It involves capturing rain from rooftops, surfaces, or catchment areas
and directing it into tanks, wells, or underground reservoirs.
• This method helps reduce dependence on groundwater and municipal
water supply.
• It is an eco-friendly and cost-effective technique to conserve water.
• Rainwater harvesting can be implemented in both urban and rural
settings.
Advantages
1. Reduces Water Bills – Lowers dependency on municipal supply.
2. Conserves Water – Utilizes rainwater for various household and agricultural uses.
3. Prevents Flooding – Controls surface runoff and reduces urban flooding.
4. Reduces Soil Erosion – Minimizes land degradation by controlling water flow.
5. Recharges Groundwater – Helps replenish underground water levels.
6. Improves Water Quality – Provides naturally soft, chemical-free water.
7. Supports Irrigation – Ideal for gardening and farming.
8. Saves Energy – Reduces the energy needed for water treatment and distribution.
9. Acts as an Emergency Supply – Useful during droughts or water shortages.
10. Promotes Sustainability – Encourages eco-friendly water conservation practices.
Disadvantages
1. High Initial Cost – Setting up storage tanks and filtration systems can be expensive.
2. Limited Storage Capacity – Requires large tanks to store enough water for dry periods.
3. Seasonal Dependency – Works best in rainy seasons; less useful in droughts.
4. Contamination Risk – Improper storage can lead to bacterial or mosquito breeding.
5. Regular Maintenance Needed – Tanks, filters, and pipes need frequent cleaning.
6. Not Always Pure – May need treatment for drinking purposes.
7. Space Requirement – Large tanks may take up valuable space.
8. Difficult for Urban Areas – Limited roof space can restrict collection.
9. Overflows & Wastage – Excess rainwater can go to waste without proper drainage.
10. Structural Issues – Poor installation may lead to leaks or damage to buildings.
Literature Review
1. Dr. Rajendra Singh
Dr. Rajendra Singh, known as the "Waterman of India," revived rivers and promoted rainwater
harvesting in Rajasthan, transforming arid lands through traditional water conservation
techniques and community participation.
2. Dr. T. Hanumantha Rao
Dr. T. Hanumantha Rao was a renowned Indian civil engineer and water management expert. As the former
Engineer-in-Chief of Andhra Pradesh, he developed cost-effective rainwater harvesting and water
conservation techniques.
3. Dr. S. Vishwanath
Dr. S. Vishwanath, an urban planner and water conservationist, advocates sustainable water management
in cities. He promotes rainwater harvesting, ecological sanitation, and decentralized wastewater treatment
to ensure water security and environmental sustainability in urban India.
4. Anna Hazare
Anna Hazare, a social activist, transformed the drought-prone village of Ralegan Siddhi in
Maharashtra using rainwater harvesting, watershed development, and community
participation. His efforts turned it into a model of sustainable rural development and water
conservation.
Methodology
1. Roof Top Rainwater Harvesting Method
• It is the method of collecting rainwater from building
rooftops.
• Rainwater is directed through pipes to a storage tank or
recharge pit.
• Basic components: roof (catchment), pipes, filter,
storage tank.
• Used for household, gardening, cleaning, or recharging
groundwater.
• Saves water, reduces bills, and prevents waterlogging.
• Ideal for both urban and rural areas.
.
2. Surface Runoff Rainwater Harvesting Method:
• Collects rainwater from surfaces like rooftops, roads, and open
grounds.
• Water is stored in tanks, ponds, or recharge pits.
• Reduces surface runoff, flooding, and soil erosion.
• Helps in groundwater recharge and water conservation.
• Useful for irrigation, cleaning, and household use after treatment.
• Simple, low-cost, and effective in urban and rural areas.
Results
• Rainwater harvesting is an effective method to conserve water and reduce dependency on
groundwater.
• It helps in recharging underground water levels and maintaining the water table.
• Collected rainwater can be used for irrigation, washing, and even drinking after proper
treatment.
• The technique is cost-effective, eco-friendly, and easy to implement in both rural and urban
areas.
• It reduces water bills and prevents waterlogging and soil erosion.
• Promoting rainwater harvesting can play a vital role in addressing future water scarcity.
Conclusion
• Rainwater harvesting is a simple yet effective method to tackle water scarcity.
• It promotes sustainable and eco-friendly water conservation.
• Helps in recharging groundwater and reducing dependency on external water sources.
• Cost-effective and suitable for both urban and rural areas.
• Essential for ensuring water security for future generations.
• Reduces the risk of flooding and soil erosion.
• Encourages responsible water usage and awareness in the community.
THANK YOU
