Saturday, March 8, 2008
rain water harvesting
Water is nectar of life and life cannot sustain without it. Ever increasing demands of water for domestic, irrigation as well as industrial sectors have created water crisis worldwide. Ground water is the only dependable source of water. Inferior quality of groundwater with high salinity, fluoride and nitrate contents further limits the availability of fresh water assets.
Depleting groundwater resources, water logging hazards, deep water levels, higher degree of salinity, high fluoride and nitrate concentration, industrial pollution etc. are the main ground water related areas of concern which needs appropriate attention of management for Rain Water Harvesting & Artificial Recharging.
WHY RAIN WATER HARVESTING?
Ground water plays a critical role in the urban environment. It has a significant contribution in municipal, industrial and domestic water supply. Urbanization strongly affects ground water recharge flow and quality thereby creating serious impact on urban infrastructure that may lead to socio – economic and environmental degradation of the area. As urban dwellings go on increasing shrinkage of open land leads to continuous
decline in ground water levels in many areas.
It has therefore; become imperative to promote rain water harvesting and artificial recharge to augment ground water recharge.
Rain water harvesting is essential because :-
Û Surface water is adequate to meet our demand and we have to depend on ground water.
Û Due to rapid urbanization infiltration of rain water into the sub – soil has decreased drastically and recharging of ground water has diminished.
Û Over – exploitation of ground water resources has resulted in declined in water levels in most part of the country.
Û To enhance availability of ground water at specific place and time.
Û To arrest sea water ingress.
Û To improve the water quality in aquifers.
Û To improve the vegetation cover.
Û To raise the water levels in wells & bore wells that are drying up.
Û To reduce power consumption.
BENEFITS OF RAIN WATER HARVESTING
Û An ideal solution of water problem in areas having inadequate water resources.
Û The ground water level will rise.
Û Mitigates the effect of drought & achieves drought proofing.
Û Reduces the runoff which chokes the storm water drains.
Û Flooding of roads is reduced.
Û Quality of water improves.
Û Soil erosion will be reduced.
Û Saving of energy per well for lifting of ground water – one meter
Depleting groundwater resources, water logging hazards, deep water levels, higher degree of salinity, high fluoride and nitrate concentration, industrial pollution etc. are the main ground water related areas of concern which needs appropriate attention of management for Rain Water Harvesting & Artificial Recharging.
WHY RAIN WATER HARVESTING?
Ground water plays a critical role in the urban environment. It has a significant contribution in municipal, industrial and domestic water supply. Urbanization strongly affects ground water recharge flow and quality thereby creating serious impact on urban infrastructure that may lead to socio – economic and environmental degradation of the area. As urban dwellings go on increasing shrinkage of open land leads to continuous
decline in ground water levels in many areas.
It has therefore; become imperative to promote rain water harvesting and artificial recharge to augment ground water recharge.
Rain water harvesting is essential because :-
Û Surface water is adequate to meet our demand and we have to depend on ground water.
Û Due to rapid urbanization infiltration of rain water into the sub – soil has decreased drastically and recharging of ground water has diminished.
Û Over – exploitation of ground water resources has resulted in declined in water levels in most part of the country.
Û To enhance availability of ground water at specific place and time.
Û To arrest sea water ingress.
Û To improve the water quality in aquifers.
Û To improve the vegetation cover.
Û To raise the water levels in wells & bore wells that are drying up.
Û To reduce power consumption.
BENEFITS OF RAIN WATER HARVESTING
Û An ideal solution of water problem in areas having inadequate water resources.
Û The ground water level will rise.
Û Mitigates the effect of drought & achieves drought proofing.
Û Reduces the runoff which chokes the storm water drains.
Û Flooding of roads is reduced.
Û Quality of water improves.
Û Soil erosion will be reduced.
Û Saving of energy per well for lifting of ground water – one meter
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Puzzle formation activity
A puzzle formation activity was taken up with the students .They were asked to create a puzzle based on their knowledge of " water" resource.
Students participated in the activity with great enthu.
The best one was selected and the student was rewarded and as a reward a star was pasted in his notebook.
Students participated in the activity with great enthu.
The best one was selected and the student was rewarded and as a reward a star was pasted in his notebook.
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Tuesday, February 19, 2008
The Importance of Water
The Importance of Water
Globally
On planet earth water is the single most important substance.
If you do not have water you do not have life.
It is the driving force behind all the various environments and ecosystems that make up our world.
It is the factor in regulating all weather systems.
It keeps the temperature of the earth stable.
It has the ability to clean, absorb, and transport any other substance.
In fact it is present everywhere and because of this we tend to forget about it's importance and take it for granted.
The human body contains 70-75% water, science now says it could be much higher.
At 10% loss dehydration sets in, at 20% loss death is usual.
It regulates our whole metabolism, millions of complex bio-chemical processes occurring every day.
It is not always the amount of water or even the purity that governs your health, it is the quality of the water. Thousands of years ago water had certain characteristics in respect to oxygen content, surface tension and solubility.
How close to this ideal water do you think your current drinking water is, if it is tap water, bottled water or treated by ozone, chlorine, fluoride, reverse osmosis, distilling.
How natural is the water once it has undergone all these different treatments?
These are man made treatments to simply try to kill all living things in the water or to filter out all things from the water, hardly a natural approach
Globally
On planet earth water is the single most important substance.
If you do not have water you do not have life.
It is the driving force behind all the various environments and ecosystems that make up our world.
It is the factor in regulating all weather systems.
It keeps the temperature of the earth stable.
It has the ability to clean, absorb, and transport any other substance.
In fact it is present everywhere and because of this we tend to forget about it's importance and take it for granted.
The human body contains 70-75% water, science now says it could be much higher.
At 10% loss dehydration sets in, at 20% loss death is usual.
It regulates our whole metabolism, millions of complex bio-chemical processes occurring every day.
It is not always the amount of water or even the purity that governs your health, it is the quality of the water. Thousands of years ago water had certain characteristics in respect to oxygen content, surface tension and solubility.
How close to this ideal water do you think your current drinking water is, if it is tap water, bottled water or treated by ozone, chlorine, fluoride, reverse osmosis, distilling.
How natural is the water once it has undergone all these different treatments?
These are man made treatments to simply try to kill all living things in the water or to filter out all things from the water, hardly a natural approach
Saturday, February 2, 2008
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Wednesday, January 9, 2008
What is a Watershed?
A watershed is the area of land where all of the water that is under it or drains off of it goes into the same place. John Wesley Powell, scientist geographer, put it best when he said that a watershed is:
"that area of land, a bounded hydrologic system, within which all living things are inextricably linked by their common water course and where, as humans settled, simple logic demanded that they become part of a community."
Watersheds come in all shapes and sizes. They cross county, state, and national boundaries. No matter where you are, you're in a watershed!
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