Save Water – Part 1
[via : PetroZine Newsletter]
Water is life ! It is a precondition for human, animal and plant life as well as an indispensable resource for the economy. Water also plays a fundamental role in the climate regulation cycle.
The Pacific Ocean covers half the globe – an area big enough to fit all the continents. In fact, 75% of the world is covered by water, so although we call our planet ‘Earth’, perhaps we should really have named it ‘Water’! Most of the water on Earth is salty. Only about 3% is fresh water and some of this is frozen in glaciers and icebergs. Water is essential for the survival of living creatures, but there is a relatively small amount to be shared around – and that makes it very precious. We need to get better at looking after this valuable resource.
What do you know about water conservation and water pollution? Read about Water and test your knowledge here!
Awareness on water conservation
Water is a precious resource in our environment. Growing populations and ongoing droughts are squeezing our water resources dry, causing natural habitat degradation and impacting our everyday use of water.
Why save water?
Of all the water in the world, only 3% is fresh. Less than one third of 1% of this fresh water is available for human use. The rest is frozen in glaciers or polar ice caps, or is deep within the earth, beyond our reach.
To put it another way, if 100 litres represents the world’s water, about half a tablespoon of it is fresh water available for our use.
The global water situation
remember that our local water supplies are part of a bigger global water cycle
Fresh water is essential to our existence – it allows us to produce food, manufacture goods and sustain our health. It is also an essential part of the natural environment which supports all human, plant and animal life.
Global water consumption has risen almost tenfold since 1900, in many parts of the world, and they are now reaching the limits of their supply. World population is expected to increase by 45% in the next thirty years, whilst freshwater runoff is expected to increase by 10%. UNESCO has predicted that by 2020 water shortage will be a serious worldwide problem.
One third of the world’s population is already facing problems due to both water shortage and poor drinking water quality. Effects include massive outbreaks of disease, malnourishment and crop failure. In addition, excessive use of water has seen the degradation of the environment costing the world billions of dollars.
Embodied water
What is embodied water?
When thinking about how much water you use you probably think about how much water you use from the taps or tanks around the house and garden, and perhaps even the amount you use at work. But have you ever thought about the amount of water used to produce some of those items you take for granted in your life – food, clothing, furniture, building materials, etc.?
There is often a high amount of ‘embodied water’ associated with many items we use or consume on an everyday basis. This is the amount of water used during the growing, processing and transportation of the goods we use or consume, or the services we use.
As an example, here are some statistics showing the amount of water used to produce some everyday items.
It takes…
- 140L of fresh water to produce 1 cup of coffee
- 1,000L of fresh water to produce 1L of milk
- 1,350L of fresh water to produce 1kg of wheat
- 3,000L of fresh water to produce 1kg of rice, and
- 16,000L of fresh water to produce 1kg of beef
The impacts of consumption
There are many hidden effects of excessive water consumption, including:
Building more dams. This has severe environmental effects such as destruction of wilderness, creation of greenhouse gases from rotting vegetation, altered stream flows and degraded ecological health. It’s also very costly!
Maintaining other infrastructure for water supply and use. This includes costly upgrades and maintenance of pipes, sewers and treatment facilities.
Erosion, salinity and desertification. Water consumption for agriculture alters the natural water cycle in many areas of Australia. This degrades production areas and intensifies other environmental problems such as land clearing and desertification.
Degradation of water bodies. Many of our rivers, wetlands and bays are degraded. This is partly due to the high levels of water extracted, as well as polluted surface runoff and storm water flushed into them.
It’s time to take action
let’s not play the blame game, each of us needs to take responsibility and take action at home, at work and at play!
As populations increase across the rest of the world, demand for water will also increase. If we don’t reduce each individual’s demand for water (both directly and through embodied water) the water situation will become dire
Concepts and Techniques on water conservation
Rain Water Harvesting
The rainwater that falls on the rooftops can be harvested for groundwater recharge using appropriate techniques. This method may be applied for the roofs of existing houses/buildings as well as those to be constructed in future.
It is estimated that a total of 2 MCM of water can be utilized for groundwater recharge at a cost of Rs.18.92 crores.
Lakes and Depressions
Lakes have often been misused for dumping of solid waste and sewage disposal. Water quality can be improved by replicating the principles of wetlands by the introduction of aquatic plants and fish in a systematic manner. Unique phenomenon of algae, bacteria symbiosis reduces the BOD (Biochemical Oxygen Demand). The fish population acts as an ecological manipulator by grazing on the algal population.
The storage capacity can be increased by desilting and widening. By desilting and deepening the lakes with the assistance of draglines machines, the lakes would need to be linked up with storm water runoff in the vicinity to augment the inflow.
This measure improves the quantity of groundwater recharge as well as the quality of available groundwater.
Floodplain Reservoirs
In this method we creates a recharge basin and reservoirs on the flood plains by scooping out earth from the flood plains at appropriate locations and letting these reservoirs to be filled up by the expanded monsoon season flow of the river.
The Yamuna flood plain comprising of 97 sq.km. of area in Delhi offers a good scope for development of groundwater resources subsequent to the storage of monsoon waters on the flood plain itself. Out of 580 MCM of monsoon season flow allocated to Delhi about 280 MCM goes unutilized due to lack of storages.
Quarry Reservoirs
Abandoned quarries are available in the vicinity of urban areas. With some modification of their catchment area and/or linkage with some nearby channels these can be used to store water, which would otherwise run-off. Depth and width of these quarries can be increased where the volume of runoff waters can be calculated to be in excess of present storage capacity.
Historical Water Bodies
Many ancient reservoirs have been disused due to change of catchment characteristics or due to destruction of feeding channel. These baolis/reservoirs can be reused as small recharge points. Major gains can be made only from the large reservoirs.
Paleo-Channels
These are abandoned course of rivers or streams and can be served as excellent ground water storage and recharge locations. Division of some of the monsoon flows into these channels greatly replenishes the declining water table for subsequent use.
Check Dams
In the regional topography several small or large check dams are possible and may be created not so much for surface withdrawal but for recharging the falling ground water table. There are number of micro watersheds present in Delhi e.g. in the Ridge which provide excellent topographical formation to conserve monsoon runoff through simple recharge structures.
Village Ponds
The original purpose of village ponds was to give sustainability to adjacent wells and for cattle drinking, bathing, etc. As village are absorbed into urban areas with increasing reliance on tube wells, the ponds are becoming cesspools. These ponds can function as storage reservoirs and recharge areas subsequent to desiltation and improvement of their water quality. Following recommendations are given:
No sewage should be diverted to ponds in order to maintain their water quality.
No garbage dumping should be permitted.
Technique of in-situ improvement of water quality using aquatic plants and fishes can be introduced where necessary in order to avoid mosquito breeding.
Grass plantation should be carried out along the perimeter of ponds in the immediate sloping catchment.
Existing ponds are to be widened to the extent possible and deepened by 1.0m and nearby storm water drainage is to be used to fill up the additional capacity thus created.
Pond may be desilt and deepen with the assistance of draglines machines.
Ecoparks
This involves the creation of artificial wetlands using aquatic plant root zone system to treat sewage waters up to tertiary levels for recycling to the irrigation and horticultural sector and possibly some industrial estates.
The system utilizes the roots of certain type of plants to provide sub-striates for the growth of bacteria, which utilizes the nutrients present in the effluents, and for the transfer of oxygen. The plants commonly employed are duckweed, water hyacinth, pennwort, etc. The plants have to be harvested regularly and about 20 to 25% plants should be removed at each harvest. These plants have a root system of rhizomes, containing thick hollow air passages, from which fine hair roots hang down.
This root zone can support a very large population of aerobic microorganisms. Bacteria, dominate the microbial population, which is expected to degrade most of the simpler organic materials i.e. those contributing to BOD. The fungi and actinomycetes, although fewer in number, have a wider range of hydrolytic activities and are expected to degrade many of the large molecules that contribute to the COD.
The waste water encounters alternate aerobic and anaerobic microbial population which convert carbonaceous and to a lesser extent nitrogenous and phosphatic, contaminants in the water to less polluting materials. Further microorganisms can form biofilms around lower stems, which can then trap particles suspended in the wastewater by absorption.
It is expected to achieve an effluent quality of 5-10mg/l of suspended solids. A total of 495 MGD of recycled water can be made available for irrigation, horticulture and industrial needs and for domestic non-drinking supply.
We have no choice but to pay more attention to how we are using water, and how we may be wasting it. We must bridge the gap between our understanding of how important water is to our survival and what we can do to ensure that we have an adequate supply of clean water for years to come.
It’s time to be water efficient!
It is obvious that we cannot increase demands for water much more without detrimental effects to the environment, society and the economy.
It’s all too easy to blame someone else for the water situation – “if 70% of water is used for agriculture then that’s what we should target” – but it’s not that easy. We all depend on the food and resources that agriculture provides, and while there are definitely opportunities to increase water efficiency on the farm, the solution will take more than that.
We each share responsibility for the sustainable management of our water resources, which means using less water at home, in the workplace, at school, on holidays, on the farm, … everyone, everywhere, every time.
It’s time to become water efficient! This involves reassessing our relationship with water, and learning to use it more sparingly. On the most basic level, it requires a behavioural change, and assigning a value to water that truly reflects its worth.
We can also unlock economic benefits of being water efficient. There are many real world examples given in the case studies on this site.
Everybody has a responsibility to save water, if future generations are to enjoy a similar standard of living to the one we enjoy now. In fact, many of the impacts associated with water use are likely to have an effect on our own lives!
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Very important topic!!!
Thanks for posting that informative article.
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1 comments:
Yehuda Draiman said…
Water is the source of life – treasure it! R4.
Water is the source of all life on earth. It touches every area of our lives. Without it, we could not thrive — we could not even survive.
Sustainability – “We strive to meet the needs of the present generation without compromising the ability of future generations to meet their own needs”.
We should discourage wastefulness and misuse, and promote efficiency and conservation.
“Conservation is really the cheapest source of supply,”
For the benefit of mankind, maintain the quality of life and preserve the peace and tranquility of world population. Water resources must be preserved – to sustain humanity. We must eliminate wasteful utilization of water, conserve our water sources and implement rigid conservation methods. We should utilize solar and or other source of renewable energy to operate desalinization projects from the oceans. Utilize renewable energy sources to purify and transport the water to its final destination. As world population increases the scarcity of water will become a cause for conflict, unless we take steps now to develop other sources of water for drinking, rainwater harvesting – storm-water and gray-water utilization. Designing of landscaping that uses minimal amount of water.
“With power shortages and a water scarcity a constant threat across the West, it’s time to look at water and energy in a new way,”
To preserve the future generations sustainability, we should look into urban farming – vertical farming. The term “urban farming” may conjure up a community garden where locals grow a few heads of lettuce. But some academics envision something quite different for the increasingly hungry world of the 21st century: a vertical farm that will do for agriculture what the skyscraper did for office space. Greenhouse giant: By stacking floors full of produce, a vertical farm could rake in $18 million a year.
Jay Draiman, Energy and water conservation consultant
May. 2, 2008
PS.
Hydro dynamics: forget oil. Sharing freshwater equitably poses political conundrums as explosive and far-reaching as global climate change.
Quoted from other sources
Anyone who has ever stood on a beach and looked out into the vast expanse of an ocean knows that there is a lot of water on this planet. In fact, 70 percent of the Earth’s surface is covered by water. It may seem like water is all around us, but safe, clean, reliable drinking water is not a cease¬less resource. The problems facing drinking water range from failing infrastructure, to climate change, to insufficient supplies.
Personal Conservation
Preserving our water resources is not a job for water industry professionals alone. We all have a vested interest in ensuring that water remains safe, af¬fordable and available. Therefore, each individual American has a responsibility to monitor and control their water use, There are many simple ways for people to reduce excess water use, lower water bills and protect the environment, espe¬cially in die spring and summer months, Beyond the standard constraints of watering the lawn only when neces¬sary and washing car wisely by using soap and a bucket of water, some steps include: draining water lines to outside faucets, disconnecting hoses, shutting off outdoor water sources during cold weather and running a small trickle of water on whiter nights to prevent pipe from freezing.
Conclusion
Water supply management is an issue that affects us all. It may not be apparent to every citizen today, but with climate change and population shifts transforming the United States, it soon will be. Effective solutions need to be put into place today before we are faced with a water crisis. A focus on careful planning, treatments, innova¬tions and conservation measures will help to create stability for long-term water management. Commitment to keeping water at the top of the list for communities and citizens will better prepare us for whatever the future of water holds.
WATER!
The indispensable source of life-without water there would be no industry, no agriculture and, most importantly of all, no life. In dry parts of the world this essential commodity is even more precious. Almost all human actions involve water from taking a shower to reading a newspaper to driving a car or simply eating a sandwich – almost everything we do or touch is somehow related to this precious treasure. We ask that you stop and think how you use water and what you can do to conserve this essential natural resource.
*Water, beliefs and customs,
*Water as a vehicle of the economy,
*Water, source of art and life, irrigation and cultivation.
The people have decided to act to try and develop a real awareness program on the theme of water preservation and distribution in an attempt to help maintain the original purity of rivers and streams.
In many parts of the world water sources and wells are not equally distributed. Water as a source of life can also be at the source of conflict.
Whether we live in India, Iceland or the Atlas… we have always tried to trap and tame water. Dams, pumps, canals, water treatment centers; there are so many different ways to exploit this resource that we often forget how fragile this unique and essential treasure actually is.
Unfortunately, many of the things we do every day can harm our water. That’s why all people and government should be working with municipalities, farmers, business leaders and developers just like you to take action to protect our water and clean it up.
Small changes can make a big difference. This guide outlines practical things we can all do to preserve and protect our water. We all need to be part of the solution.
Concentrated Solar Power, which requires no solar panels at all. It works by concentrating sunlight onto a small pipe using cheap parabolic reflectors. The pipe contains a liquid that’s heated to very high temperatures by the sun and drives a steam boiler that rotates a turbine to generate electricity (much like nuclear power plants, but without the nuclear waste). It’s cheap, low-tech, and far more affordable than solar power. Plus, it can be built in practically any desert, so it doesn’t take up valuable land. As another bonus, when CSP operations are built near the ocean, they can desalinate ocean water as a side effect, providing fresh water for irrigation to grow food. This is the only renewable energy technology I know of that can produce cheap energy, fresh water and crop irrigation all at the same time. Plus, it has no emissions, no toxic chemicals, no nuclear waste and very little environmental impact..
“You can’t escape the responsibility of tomorrow by evading it today” – Abraham Lincoln said it.
“That man is richest whose pleasures are the cheapest” – Henry David Thoreau.
“To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed” – Theodore Roosevelt.
“When the ‘study of the household’ (ecology) and the ‘management of the household’ (economics) can be merged, and when ethics can be extended to include ‘environmental’ as well as human values, then we can be optimistic about the future of mankind. Accordingly, bringing together these three E’s is the ultimate holism and the great challenge for our future” – Eugene Odum.
May 27, 2008 4:36 AM
Posted this link in http://www.surfurls.com
nice, important topic and useful information. thank you for posting it.
thanks krish. if possible share some home making experiences with other members on our forums.
Water is the source of life – treasure it! R5.
Water is the source of all life on earth. It touches every area of our lives. Without it, we could not thrive — we could not even survive.
Sustainability – “We strive to meet the needs of the present generation without compromising the ability of future generations to meet their own needs”.
We should discourage wastefulness and misuse, and promote efficiency and conservation.
“Conservation is really the cheapest source of supply,”
For the benefit of mankind, maintain the quality of life and preserve the peace and tranquility of world population. Water resources must be preserved – to sustain humanity. We must eliminate wasteful utilization of water, conserve our water sources and implement rigid conservation methods. We should utilize solar and or other source of renewable energy to operate desalinization projects from the oceans. Utilize renewable energy sources to purify and transport the water to its final destination. As world population increases the scarcity of water will become a cause for conflict, unless we take steps now to develop other sources of water for drinking, rainwater harvesting – storm-water and gray-water utilization. Designing of landscaping that uses minimal amount of water.
“With power shortages and a water scarcity a constant threat across the West, it’s time to look at water and energy in a new way,”
To preserve the future generations sustainability, we should look into urban farming – vertical farming. The term “urban farming” may conjure up a community garden where locals grow a few heads of lettuce. But some academics envision something quite different for the increasingly hungry world of the 21st century: a vertical farm that will do for agriculture what the skyscraper did for office space. Greenhouse giant: By stacking floors full of produce, a vertical farm could rake in $18 million a year.
Jay Draiman, Energy and water conservation consultant
June 19, 2008
PS.
Hydro dynamics: forget oil. Sharing freshwater equitably poses political conundrums as explosive and far-reaching as global climate change.
Quoted from other sources
Anyone who has ever stood on a beach and looked out into the vast expanse of an ocean knows that there is a lot of water on this planet. In fact, 70 percent of the Earth’s surface is covered by water. It may seem like water is all around us, but safe, clean, reliable drinking water is not a cease¬less resource. The problems facing drinking water range from failing infrastructure, to climate change, to insufficient supplies.
Personal Conservation
Preserving our water resources is not a job for water industry professionals alone. We all have a vested interest in ensuring that water remains safe, af¬fordable and available. Therefore, each individual American has a responsibility to monitor and control their water use, There are many simple ways for people to reduce excess water use, lower water bills and protect the environment, espe¬cially in die spring and summer months, Beyond the standard constraints of watering the lawn only when neces¬sary and washing car wisely by using soap and a bucket of water, some steps include: draining water lines to outside faucets, disconnecting hoses, shutting off outdoor water sources during cold weather and running a small trickle of water on whiter nights to prevent pipe from freezing.
Conclusion
Water supply management is an issue that affects us all. It may not be apparent to every citizen today, but with climate change and population shifts transforming the United States, it soon will be. Effective solutions need to be put into place today before we are faced with a water crisis. A focus on careful planning, treatments, innova¬tions and conservation measures will help to create stability for long-term water management. Commitment to keeping water at the top of the list for communities and citizens will better prepare us for whatever the future of water holds.
WATER!
The indispensable source of life-without water there would be no industry, no agriculture and, most importantly of all, no life. In dry parts of the world this essential commodity is even more precious. Almost all human actions involve water from taking a shower to reading a newspaper to driving a car or simply eating a sandwich – almost everything we do or touch is somehow related to this precious treasure. We ask that you stop and think how you use water and what you can do to conserve this essential natural resource.
*Water, beliefs and customs,
*Water as a vehicle of the economy,
*Water, source of art and life, irrigation and cultivation.
The people have decided to act to try and develop a real awareness program on the theme of water preservation and distribution in an attempt to help maintain the original purity of rivers and streams.
In many parts of the world water sources and wells are not equally distributed. Water as a source of life can also be at the source of conflict.
Whether we live in India, Iceland or the Atlas… we have always tried to trap and tame water. Dams, pumps, canals, water treatment centers; there are so many different ways to exploit this resource that we often forget how fragile this unique and essential treasure actually is.
Unfortunately, many of the things we do every day can harm our water. That’s why all people and government should be working with municipalities, farmers, business leaders and developers just like you to take action to protect our water and clean it up.
Small changes can make a big difference. This guide outlines practical things we can all do to preserve and protect our water. We all need to be part of the solution.
Concentrated Solar Power, which requires no solar panels at all. It works by concentrating sunlight onto a small pipe using cheap parabolic reflectors. The pipe contains a liquid that’s heated to very high temperatures by the sun and drives a steam boiler that rotates a turbine to generate electricity (much like nuclear power plants, but without the nuclear waste). It’s cheap, low-tech, and far more affordable than solar power. Plus, it can be built in practically any desert, so it doesn’t take up valuable land. As another bonus, when CSP operations are built near the ocean, they can desalinate ocean water as a side effect, providing fresh water for irrigation to grow food. This is the only renewable energy technology I know of that can produce cheap energy, fresh water and crop irrigation all at the same time. Plus, it has no emissions, no toxic chemicals, no nuclear waste and very little environmental impact..
“You can’t escape the responsibility of tomorrow by evading it today” – Abraham Lincoln said it.
“That man is richest whose pleasures are the cheapest” – Henry David Thoreau.
“To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed” – Theodore Roosevelt.
“When the ‘study of the household’ (ecology) and the ‘management of the household’ (economics) can be merged, and when ethics can be extended to include ‘environmental’ as well as human values, then we can be optimistic about the future of mankind. Accordingly, bringing together these three E’s is the ultimate holism and the great challenge for our future” – Eugene Odum.
Confronting the Challenges of Tomorrow
While Cherishing Today
Our world today confronts current economic hardship, which represent both a challenge and an opportunity for us to assert our ability to work together for the good of all. Efforts to combat abuse and waste have fallen short. Many countries around the world suffer from the shortage of resources such as water and energy, which threatens their stability and whose capacity and resources disable them from containing the panic, thus necessitating, in such a situation, assistance for those countries in dealing with the crisis. Our world also confronts numerous environmental challenges such as limited and declining natural resources, climate change, drought and desertification, all of which require the redoubling of worldwide efforts to address them in order to safeguard the right of future generations to a secure life. The scarcity of water and energy threatens the eruption of conflicts in different parts of the world, and the nations of the world are therefore called upon to maximize the benefit from, and the proper management of, available water and energy resources while respecting and protecting the acquired rights of nations to utilize and further develop those resources.
We must work together as a cohesive force to expedite development of natural resources, eliminate the abuse of the environment. Utilize today’s technology to expand the desalinization of water increase the development of Alternative energy with an environmental balance.
We must learn to appreciate what we have today while protecting and preserving our natural resources for future generations.
Jay Draiman
In a similar project to save water we are promoting waterless urinals in India. So far the waterless urinals available involved lot of maintenance costs that has made them unpopular, with our innovation we came up with maintenance free units. We would request for public support to promote waterless urinals in India that saves huge quantity of water that is otherwise flushed in the drains.
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