Rainwater Harvesting Kelompok 1_compressed (1).pdf

Rainwater harvesting explanation

1. Rainwater
Harvesting
Rainwater
Harvesting How Rainwater Harvesting System
Preserve and Conserve Our Water
Resources English Subject English Subject

2. Lovey/ 2505561051
Tarra/ 2505561053
Alfa/ 2505561052
Dohar/ 2505561054
Bunga/ 2505561055
Putri/ 2505561057
Lintang/ 2505561056
Valentino/ 2505561058
Rama/ 2505561059
Davin/ 2505561061
Gaisani/ 2505561060
Faya/ 2505561062 Member of the Group Member of the Group

3. Introduction to
Rainwater Harvesting
Introduction to
Rainwater Harvesting
Rainwater harvesting is a technology used for
collecting and storing rainwater from rooftops, the land
surface or rock catchments using simple techniques
such as jars and pots as well as more complex
techniques such as underground check dams. Another
definition of rainwater harvesting is the activity of
collecting rainwater locally and storing it through
various technologies, for future use, to meet the
demands of human consumption.

4. Why We Need
Rainwater Harvesting
Why We Need
Rainwater Harvesting
1. Increases Water Availability in the Soil
2. Minimizing the Impact of Drought
3. Beneficial for Environmental Sustainability
4. Saves money

5. Rainwater
Harvesting System
Rainwater
Harvesting System
1. Collection:
2. Distribution:
3. Filtering:
4. Storage:
5. Storage and Use:
-For non-consumption needs
-For consumption purposes

6. Rain Barrels Rainwater Harvesting Machinery Rainwater Harvesting Machinery
“Dry” System “Wet” system

7. Impact of Flooding in Bali
1. 9 fatalities
2. 800 people affected in 123 flood locations
3. Damage to infrastructure and public facilities
4. Disruption of mobility
Study Case: Bali’s Biggest Flood
of the 20 Century
th
Study Case: Bali’s Biggest Flood
of the 20 Century
thSumber: Unusa.ac.id
The flood disaster that hit Bali from September 9,
2025 to September 10, 2025. Rainfall was
recorded at 245.75 millimeters, causing flooding
that submerged the underpass at the Dewa Ruci
intersection on Jalan Bypass Ngurah Rai. The
Dewa Ruci intersection was submerged up to 4.5
meters.
According to one driver, the cause of the
flooding was high water levels and inadequate
drainage channels in the underpass.

8. The Main Causes
of Bali’s Flood
The Main Causes
of Bali’s Flood
1. Inadequate drainage system
2. Inadequate infrastructure
3. Poor sediment management
4. Accumulation of waste
5. High rainfall volume

9. Potential
Advantages
Potential
Advantages
Conserves Water Resources
Reduces Water Bills
Reduces Groundwater Depletion
Prevents Urban Flooding

10. Potential
Disadvantage
Potential
Disadvantage Unreliable rainfall : The amount of water
collected depends on rainfall patterns.
Initial cost : The setup can have high initial costs
due to equipment and installation.
Maintenance : Systems require regular
maintenance and cleaning to operate effectively.
Space : Storage tanks can take up a significant
amount of space.

11. Question and Answering
Session
Question and Answering
Session

12. Thank YouThank YouWater Is The Sources of All Life