Save Water Save Life

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Earth is the only known planet in this universe where life is possible only because of the availability of water and oxygen. Water is the most important necessity of life for all the living beings on earth, without water no one can exist even for a day. That's why water has called alternative of life. Three-fourth part of the earth is water however only 2% of the water is usable for us. Water is an urgent necessity of life in all the areas of work like the household, agriculture, domestic, industry, etc. It is nature’s precious gifts to us for the continuity of life on the earth. All the living things need more water for their survival as their body consists mostly of water. The human body is consists of two-thirds of water.

The United Nations recognizes the importance of addressing the global water crisis each year on World Water Day, March 22. Globally, 844 million people lack basic drinking water access, more than 1 of every 10 people on the planet. In 2018 worldwide, 2.1 billion people still live without safe drinking water in their homes and more than 1 billion people still have no choice but to defecate outside. Bangladesh has one of the highest population densities in the world, with a population of 160 million living within 57,000 square miles. Of those 160 million people, 4 million lack safe water according to water.org. Without clean, easily accessible water, families and communities are locked in poverty for generations. Children drop out of school especially girls and parents struggle to make a living. Lack of clean water in households causes millions of children in the developing world to suffer needlessly from disease, according to UNICEF.

As we all know that around 2 or less percent of water is fresh water on the earth and fit for human consumption. Most of the water is locked up in glaciers, snow, ice, and others are in the form of open source. The main source of freshwater is groundwater because of the natural filtering system. The level of drinking water under the ground is becoming less because of the disturbance in the natural filtering system. Deforestation and lack of plants cause rainwater to run away instead of going inside the ground. Clean water insecurity at many places has increased due to the draught, natural disasters, water pollution. In the coming decades, the demand for clean water supply will increase because of populations growth, the need for agriculture and industry will expand, negative climatic changes, etc.

A statistical view of gobal water use. (Source:BBC News)

It’s time to join our hands together and take effective actions regarding save water as much as possible. There are different ways we can save huge water on a daily basis. Following are save water techniques which we must use to save water at home and other places:

  • We should teach simple methods of water saving to our children, women and other members of the family like turning off all the taps tightly after each use, using sprinklers to water the lawn, giving a bath to pets in the lawn, repair of all the leaking pipes.
  • Rainwater harvesting is one of the most effective and suitable methods to save water techniques. Harvesting rainwater for purposes like the watering plant, washing clothes, toilet flush, sprinkle in the garden etc. Be aware of collecting it after 5 minutes of rain started. This water can be used for drinking after further purification like boiling.
Rainwater harvesting method for the rural house.
Rainwater harvesting method for the urban house.
  • A large amount of water use for sanitation. New technology has been invented to reduced water waste in this issue. Like there are two buttons for the flash of modern toilets. Have you ever wondered, why the current time of the toilet has two buttons? So special efforts are being taken to prevent water wastage for the toilet by introducing Two-button plan. Usually, six to seven liters of water is used in a large flash. Earlier, any amount of water used to be consumed in this flash. And the small flash costs only 3 to 4 liters of water. As a result, you can easily reduce the amount of waste of water without the need for a big flash. We should be aware of this kind of invention.
Two-button flash modern toilets.
  • The Agriculture field is also a vast area where we can save more water on a daily basis if we follow water saving techniques. We can use overhead irrigation for crop irrigation using center-pivot or lateral-moving sprinklers, minimize evaporation, runoff or subsurface drainage, etc. Use of green manures, recycling of crop residues, mulching, animal manure, etc in the field improves the soil organic matter which again increases the water holding capacity and ability to absorb water (during torrential rains) of the soil. The growth of more water-efficient crops adopting less irrigation should be promoted as only crop irrigation takes around 70% of the world’s fresh water.
Lateral-moving sprinklers irrigation.
Center-pivot irrigation.
  • We should be habitual of reusing or recycling wastewater. Two types of wastewater are created in a home: greywater and blackwater. Greywater is wastewater from non-toilet plumbing fixtures such as showers, basins, and taps. Blackwater is water that has been mixed with waste from the toilet. Because of the potential for contamination by pathogens and grease, water from kitchens and dishwashers considered as Blackwater. Each wastewater type must be treated differently and can be used in various ways. Greywater is ideal for garden watering, with the appropriate precautions, such as using low or no sodium and phosphorus products and applying the water below the surface. It can be reused indoors for toilet flushing and clothes washing. Blackwater requires biological or chemical treatment and disinfection before reuse.
  • We should choose efficient fixtures. Aerating your faucets, investing in a low-flow toilet, choosing efficient shower heads, and opting for a Water Sense-rated dishwasher and washing machine can add up to big water savings.
  • There should be universal metering for water supply to each home just like electricity. This facility is only available in some UK households areas and urban Canadian homes. It is estimated by the US Environmental Protection Agency that water metering is an effective technique which alone can reduce water consumption by 20 to 40% on a daily basis.
  • Water saving techniques should also be promoted at the social and community level by the governments through the use of common strategies like public outreach campaigns pay the higher price for increasing water use, restrictions on the use of clean water for outdoor activities like lawn watering, floor cleaning, car washing, etc.

Lack of water is a big issue in many countries. It is a symbiotic factor and an important element to which life depends on. The level of drinking water under the ground is becoming less because of the disturbance in the natural filtering system. In 2018 South African capital Cape Town face a serious water crisis, leaders of the country warn that residents are increasingly likely to face "Day Zero." That's the day, previously projected for mid-April then mid-July in 2018, when the city says it will be forced to shut off taps to homes and businesses because reservoirs have gotten perilously low. But somehow they had saved from water crisis at that time.

We should understand the importance of water in our lives and stop misusing it with the proper management of usage of water. We should not waste it rather save water in every purpose in our life.

WRITER: Marjanul Jannat