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EFOS : Rejuvenate Water SolutionGreen, Clean & Sustainable Water Resources
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Facts on Water
• About 70% of all available freshwater is used for agriculture. Yet becauseof inefficient irrigation systems, particularly in developing countries, 60%of this water is lost to evaporation or is returned to rivers andgroundwater aquifers.
• Water withdrawals for irrigation have increased by over 60% since 1960.
• Water use increased six-fold during the last century, more that twice therate of population growth.
• By the year 2025, it is predicted that water withdrawal will increase by50% in developing countries and 18% in developed countries.
• Water losses due to leakage, illegal water hook-ups and waste total up toabout 50% of the amount of water used for drinking in developingcountries.
• About 40% of the world’s population currently lives in areas with moderateto high water stress. By 2025, it is estimated that about two thirds of theworld’s population (about 5.5 billion people) will live in areas facing suchwater stress.
sources : WWF Malaysia
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The World’s Water
• Earth may be a water planet, but freshwater isscarce….
97% of water is salty or otherwise undrinkable, andalmost 3% is locked away in ice caps, glaciers ordeep underground……
It is estimated that only 0.003% is actually availablefor use.
If all the earth’s water is represented by a litre, only ateaspoon is available for us to use. Sources : WWF Malaysia
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GLOBAL WATER RESOURCES
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GLOBAL WATER CRISIS
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MAIN REASONS OF WATER CRISIS
• Pollution of water sources
• Improper water resourcesmanagement
• Shortcomings in Legislation andRegulations
EFOS Resources
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GREYWATER DISCHARGE
GREY WATER SOURCES
FACTORIES RESIDENTIALS HOTELS MOSQUES
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SOLUTION
EFOS-R1 : RejuvenateWater Solution
Green, Clean & Sustainable WaterResources
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OBJECTIVES
To reduce freshwater use especially fortoilet flushing or irrigation/greeningrequirement purposes
To reduce strain of sewage treatmentplant
To increase awareness andunderstanding on the sustainable watermanagement
To become role model towardsrejuvenate and water recycling forsustainable
EFOS Resources
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APPLICATION AREA
Factories
Shops
Hotels
Houses
Schools
Mosques
Recreational areas
Hospitals
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SIMPLIFIED SCHEMATIC DIAGRAM
EFOS
Grey Watercollection tank
Effluent
Treated &disinfectedwater forrecyclingpurposes
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SIMPLE SAVING CALCULATION
Assumptions:• Total factory workers : 100 ppl• Water Usage/person (greywater) : 1 liter/ppl• Working day/week : 5 days/week• Flushing water amount/usage : 6 Liters• % workers using toilet/day : 40% =240 L/day
Calculation
• Daily greywater discharge : 100 L/day• Monthly greywater discharge : 2000 L/mth• Monthly flushing water consump. : 4800 L/mth
Simple estimation saving only for toilet flushing
~ 42% saving
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Thank You