The document discusses a workshop on rainwater harvesting organized by Dr. N. Sai Bhaskar Reddy of GEO and U-FERWAS. It covers various topics related to rainwater harvesting including climate change and drought, types of drought (meteorological, hydrological, agricultural, socioeconomic), rainwater harvesting techniques, collection area and rainfall measurement, quality issues, operational procedures and design considerations, storage, and means of water conservation.
My presentation is about the natural treatment system, for what and all the water is used to the public environment. Also the treating the water with High-technology instrument.
My presentation is about the natural treatment system, for what and all the water is used to the public environment. Also the treating the water with High-technology instrument.
Irrigation with municipal waste water is a suitable disposal option in all regions where additional moisture can be effectively utilized for improved crop production. Waste water loading is to be based on the consumptive water use of the crop being grown. The primary objective should be enhancement of crop production. The root zone of productive soils can often serve as one of the most active media for the decomposition, immobilization, or utilization of wastes.
Prayas, the word in Sanskrit means making an effort, attempt, try, exercising, and practicing some positive actions for the betterment of individual and the community as well.
Here, in Tenet, “Prayas” is entitled as an interim effort of Tenetians for betterment in professional, educational, cultural and social aspects of life. It includes different training, exercising and performing activities to share the best of a person’s thought with others.
In Prayas, presently we have several agendas like Prayas-1, the “share-your-knowledge” programme, exercising a power-point presentation in every Wednesday by an individual under a senior’s mentorship. This exercise also helps in improving our communication skill. In Prayas-2, “personality development” programme, we conduct language skill building classes for our Tenetians in every Monday evening. Apart from these, we are arranging several cultural activities by individual’s performances under Prayas-1 to enjoy environment with work.
We also have a few more sports activities already started to refresh our body and mind to enhance an overall growth for all of us to come under Prayas very shortly.
Prayas Session : Rain Water Harvesting by Soumalya Nandi
Domestic Wastewater Treatment by Root Zone Technology Option: Colacassia PlantDr. Amarjeet Singh
Root Zone Technology is one of the low cost
methods to treat wastewater. With the help of this system we
can treat the Non-Point sources with best results. To achieve
this goal we have to divide the Non-Point sources into
constructed channels within the river bank followed by root
zone bed or if the Non-Point Sources is coming from natural
nallas we can provide this system within its Channel. We
have prepared channel on which I have developed the root
zone bed and have lab analysis of rector out put on number
of parameters. Flow rate and Detention time are the two
factors on which channels are to be designed. Therefore I
am changing the flow rate and finding out the change in
parameter with respect to detection time. The optimization
is when we get best result with maximum flow. I have got
satisfactory results for the detention time of Three day,
Seven day and twenty one day and Three day. With the help
of this data I have designed the root zone bed system for the
selected actual Domestic Sources.
Redox Environment B.V. at Winterswijk, The netherlands, has developped a total process for waterrecycling for municipal and office buildings, laoding stations, small municipalities,etc., etc,.
Rain water harvesting is a technique of collection and storage of rainwater into natural reservoirs or tanks, or the infiltration of surface water into subsurface aquifers (before it is lost as surface runoff). One method of rainwater harvesting is rooftop harvesting.
Introduction
• Water is essential for all life of forms on earth-including human, animal and vegetation.
• It is therefore important that adequate supplies of water be developed to sustain such life
• Where there is no surface water, where groundwater is deep or inaccessible due to hard ground conditions, or where it is too salty, acidic or otherwise unpleasant or unfit to drink, another source must be sought.
• In areas that have regular rainfall, the most appropriate alternative is the collection of rainwater, called rainwater harvesting .
Irrigation with municipal waste water is a suitable disposal option in all regions where additional moisture can be effectively utilized for improved crop production. Waste water loading is to be based on the consumptive water use of the crop being grown. The primary objective should be enhancement of crop production. The root zone of productive soils can often serve as one of the most active media for the decomposition, immobilization, or utilization of wastes.
Prayas, the word in Sanskrit means making an effort, attempt, try, exercising, and practicing some positive actions for the betterment of individual and the community as well.
Here, in Tenet, “Prayas” is entitled as an interim effort of Tenetians for betterment in professional, educational, cultural and social aspects of life. It includes different training, exercising and performing activities to share the best of a person’s thought with others.
In Prayas, presently we have several agendas like Prayas-1, the “share-your-knowledge” programme, exercising a power-point presentation in every Wednesday by an individual under a senior’s mentorship. This exercise also helps in improving our communication skill. In Prayas-2, “personality development” programme, we conduct language skill building classes for our Tenetians in every Monday evening. Apart from these, we are arranging several cultural activities by individual’s performances under Prayas-1 to enjoy environment with work.
We also have a few more sports activities already started to refresh our body and mind to enhance an overall growth for all of us to come under Prayas very shortly.
Prayas Session : Rain Water Harvesting by Soumalya Nandi
Domestic Wastewater Treatment by Root Zone Technology Option: Colacassia PlantDr. Amarjeet Singh
Root Zone Technology is one of the low cost
methods to treat wastewater. With the help of this system we
can treat the Non-Point sources with best results. To achieve
this goal we have to divide the Non-Point sources into
constructed channels within the river bank followed by root
zone bed or if the Non-Point Sources is coming from natural
nallas we can provide this system within its Channel. We
have prepared channel on which I have developed the root
zone bed and have lab analysis of rector out put on number
of parameters. Flow rate and Detention time are the two
factors on which channels are to be designed. Therefore I
am changing the flow rate and finding out the change in
parameter with respect to detection time. The optimization
is when we get best result with maximum flow. I have got
satisfactory results for the detention time of Three day,
Seven day and twenty one day and Three day. With the help
of this data I have designed the root zone bed system for the
selected actual Domestic Sources.
Redox Environment B.V. at Winterswijk, The netherlands, has developped a total process for waterrecycling for municipal and office buildings, laoding stations, small municipalities,etc., etc,.
Rain water harvesting is a technique of collection and storage of rainwater into natural reservoirs or tanks, or the infiltration of surface water into subsurface aquifers (before it is lost as surface runoff). One method of rainwater harvesting is rooftop harvesting.
Introduction
• Water is essential for all life of forms on earth-including human, animal and vegetation.
• It is therefore important that adequate supplies of water be developed to sustain such life
• Where there is no surface water, where groundwater is deep or inaccessible due to hard ground conditions, or where it is too salty, acidic or otherwise unpleasant or unfit to drink, another source must be sought.
• In areas that have regular rainfall, the most appropriate alternative is the collection of rainwater, called rainwater harvesting .
Roof-Top rainwater harvesting system for official / multistoried building wit...IJERA Editor
Rain water harvesting is received increased attention world wide as an alternative source of water. Roof-top rain water harvesting system is looked upon as one of the most feasible and economical ways of water conservation. With increasing problem of water scarcity, planning and designing roof top rain water harvesting is gaining wider importance to meet ever-increasing water demand, encouraging use of water or more sustainable basis. The rain water harvesting is the simple collection or storing of water for the domestic or the agriculture purpose. The method of rain water harvesting has been into practice since ancient times. The method is simple and cost effective too. Malda district of West Bengal is badly affected by Arsenic contamination in ground water. The present study finds its usefulness in developing awareness towards judicious use of water among masses and efficient ways to harvest roof top rain water resources at institutional / multistoried buildings in Malda district.
This Powerpoint was compiled by Sandeep Mehrotra, Chair of the Hastings Environmental Commission and Vice President, Hazen & Sawyer P.C., Environmental Engineers and Scientists. It covers Low Impact Development/Better Site Design Principles & Techniques - What they are, Why they matter in flooding and water quality. It was presented at a Stormwater Management Roundtable organized by Groundwork Hudson Valley/Saw Mill River Coalition, Greenburgh Environmental Forum, and Federated Conservationists of Westchester.
Water conservation refers to reducing the usage of water and recycling of waste water for different purposes like domestic usage, industries, agriculture etc. This technical article highlights most of the popular methods of water conservation. A special note on rainwater harvesting is also provided.
this presentation is about the reuse of treated wastewater.Different application and technologies involved. I have also put four case studies taken from some journals mentioned.
Definition of drought, Causes of drought, measures for water conservation and
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collection, small dams, runoff enhancement, runoff collection, ponds, tanks.
Water is a very important resource in our life . The availability of water resources on earth are limited and unevenly distributed. Human demand for water has been growing for two reasons. The available water is to be conserved. This module explains the major practices adopted in water conservation.
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Rainwater harvesting walamtari june12_1
1. Rain Water Harvesting
Workshop for Rain water Harvesting campaign
with United Federation of Resident Welfare
Associations (U-FERWAS)
5.6.2012
Dr. N. Sai Bhaskar Reddy Water and Land Management Training and
CEO, GEO Research Institute (WALAMTARI), Govt. of AP
http://e-geo.org
4. Meteorological Drought
Meteorological drought is the amount of dryness and the duration of the dry period. Atmospheric
conditions that result in deficiencies of precipitation change from area to area.
Hydrological Drought
Hydrological drought is associated with the effects of periods of precipitation shortages on water
supply. Water in hydrologic storage systems such as reservoirs and rivers are often used for
multiple purposes such as flood control, irrigation, recreation, navigation, hydropower, and wildlife
habitat. Competition for water in these storage systems escalates during drought and conflicts
between water users increase significantly.
Agricultural Drought
Agricultural drought mainly effects food production and farming. Agricultural drought and precipitation
shortages bring soil water deficits, reduced ground water or reservoir levels, and so on. Deficient topsoil
moisture at planting may stop germination, leading to low plant populations.
Socioeconomic Drought
Socioeconomic drought occurs when the demand for an economic good exceeds supply as a result of a
weather-related shortfall in water supply. The supply of many economic goods, such as water, forage, food
grains, fish, and hydroelectric power, depends on weather. Due to variability of climate, water supply is
sufficient in some years but not satisfactory to meet human and environmental needs in other years. The
demand for economic goods is increasing as a result of increasing population. Supply may also increase
because of improved production efficiency and technology.
10. • India has 2% of world’s land, 4% of
freshwater, 16% of population, and
10% of its cattle.
• Geographical area = 329 Mha of
which 47% (142 Mha) is cultivated,
23% forested, 7% under non-agri
use, 23% waste.
• Per capita availability of land 50
years ago was 0.9 ha, could be only
0. 14 ha in 2050.
uk-energy-saving.com
11. Out of cultivated area, 37% is irrigated which produces 55%
food; 63% is rain-fed producing 45% of 200 M t of food.
In 50 years (ultimate), proportion could be 50:50 producing
75:25 of 500 M t of required food.
12. Freshwater management in
India
Water Conservation
Watershed management
Water quality conservation
Inter basin water transfer
GW management
Recycle and reuse of water
Public involvement and capacity building
Anupma Sharma
13. What Is Rainwater Harvesting?
RWH technology consists of simple systems to collect, convey,
and store rainwater. Rainwater capture is accomplished
primarily from roof-top, surface runoff, and other surfaces.
RWH either captures stored rainwater for direct use (irrigation,
production, washing, drinking water, etc.) or is recharged into the
local ground water and is call artificial recharge.
In many cases, RWH systems are used in conjunction with Aquifer
Storage and Recovery (ASR). ASR is the introduction of RWH
collected rainwater to the groundwater / aquifer through various
structures in excess of what would naturally infiltrate then
recovered for use
14. Why Rainwater Harvesting?
Conserve and supplement existing water resources
Available for capture and storage in most global locations
Potentially provide improved quality of water
Supply water at one of the lowest costs possible for a supplemental
supply source.
Capturing and directing storm water (run-off) and beneficially use it
Commitment as a corporate citizen - showcasing environmental
concerns
Public Mandate (India)
Replenishing local ground water aquifers where lowering of
water tables has occured
15. Why Not RWH?
Not applicable in all climate conditions over the world
Performance seriously affected by climate fluctuations that sometimes are
hard to predict
Increasingly sophisticated RWH systems (ASR) necessarily increases
complexities in cost, design, operation, maintenance, size and regulatory
permitting
Collected rainwater can be degraded with the inclusion of storm water runoff
Collected water quality might be affected by external factors
Collection systems require monitoring and continuous maintenance and
improvement to maintain desired water quality characteristics for water
end-use
Certain areas will have high initial capital cost
16. Condensation
Let’s take a look at
Precipitation The Water Cycle
Evapotranspiration
Evaporation
Infiltration
Surface Runoff
Consumption Surface Water
.ppt (16)
Sea water intrusion
17. Collection Area
Rainfall
Demand
Primary Use (Direct Use, Artificial Recharge (AR) or Aquifer
Storage and Recovery (ASR))
Storage capacity
Level of Security - risk of the storage tank running dry
18. Measure Area
Runoff Characteristics
• Roof top 0.75 – 0.95
• Paved area 0.50 – 0.85
• Bare ground 0.10 – 0.20
• “Green area” 0.05 – 0.10
Water harvesting potential(m3) = Area (m2) X Rainfall
(m) X Collection Efficiency
19. Quality Issues
Roofs contain: bird droppings, atmospheric dust, industrial and
urban air pollution
20. Operational
Procedures and
Design
Considerations
Tar based roof coatings
and materials should not
Screen to prevent birds, Lead based paint must
be used – Phenolics and
animal and insects; not be used on the roof;
other organics can leach
from materials
If roofs painted with
acrylic paints, new
concrete or metal roofing
Clean the gutters and
- first few rainfalls
tank every 3 months
should not be collected to
avoid metals, detergents,
and other chemicals
22. Operational Procedures and Design
Considerations
Storage tank –
Tank in protected
dark materials to Corrosion
shaded area –
exclude light and resistant materials
lower temperature
algae formation
Regional wind
For multiple
direction and
storage tanks –
industrial activity
design for
– Lead, Mercury,
frequent turnover
other heavy metals
23. Storage
1. Ponds and Reservoirs
2. Artificial recharge of Groundwater
3. Water Tanks
4. Rainwater runoff in surface water
5. Rainwater runoff in groundwater
6. Rainwater runoff in tanks
7. Effluent in surface water
8. Effluent in ground water
Every drop counts
28. Jn nurm – URBAN RAIN WATER HARVESTING
Tackle water shortage during summers
Recharge aquifers
Reduced power consumption in pumping water
Reduced water logging and flooding in low lying areas
Reduced erosion
Improved Groundwater quality through dilution. Eg: Coastal areas
29. Means of water conservation
New dams -
Groundwater -
inter-basin
underdeveloped
transfer
Water savings -
Demand increase in
Management efficiency, reduce
evaporation.
Water productivity
Virtual water –
- increases in
Food production
crop per drop
30. Water Conservation…
Install small shower heads to reduce the flow of the
water. Water in which the vegetables & fruits have
been washed - use to water the flowers & plants.
At the end of the day if you have water left in your
water bottle do not throw it away, pour it over some
plants.
Re-use water as much as possible
Change in attitude & habits for water conservation
Prof. T. I. Eldho ,
31. Water Conservation
Type of land ownership for soil 2% 5%
28%
and water conservation
measures
25%
65%
45%
Contour bunding Gully plugging
Staggered trenching Level terraces
30%
Private land Fallow land Forest land
Techniques of soil and water
conservation measures Prof. T. I. Eldho
