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Optimizing and Saving WATER in achieving Green Construction
- 1. ACCEI Institute & ACCE(I) Bangalore Center Sustainable Engineering Series (SES) Talk 4 RAJENDRA KALBAVI BE, M Tech EXECUTIVE DIRECTOR D.K. NIRMITHI KENDRA, NITK SURATHKAL, KARNATAKA INDIA Optimizing and Saving WATER in achieving Green Construction 17th October, 2020
- 2. Water ,Water everywhere Acknowledgement I,deeply acknowledge the immense contribution given by Scientists, Engineers, Research Scholars, Authors of books and articles and contributors in the social media and internet. I assure, few of the matters included in this presentation is purely for Knowledge sharing and not for any commercial gain TRYTO SAVE IT, IFYOU CARE
- 3. Water and humanbeing •History •Civilization •Advent of science •Urbanization •Water for all •Usage and over usage •R-R-R-R-R…. •Sustainability Sustainability and Sustainable Construction The state in which the components of eco system and their functions are maintained for the present and future generations NBC 2016 Part II
- 4. Sustainability and SustainableConstruction ---3 Pillars •1. Economic - world is moving •2. Socio–cultural - identity •3.Enverionmental - common to everyone Globally construction consumes 40% of Energy 42% of Water 50% of Raw materials 50% of Air Pollution 50% of Water pollution Green house gases-solid waste etc
- 5. Why economise onwater usage. •Total Quantity in the world •97% are saline in sea •3% potable water • 1.2 percent - drinking water • Glaciers, ice caps •buried deep in the ground. •Drinking water comes from rivers and streams
- 7. HOW MUCH WENEED?? Each person uses about 250 to 350 liters of water per day Govt is targeting to supply 130 ltr/p/d in urban, 100 l/p/d in semi reual and 80 l/p/d in rural areas
- 9. Water India’s water crisis:The clock is ticking Water scarcity in India From Wikipedia, the free encycl Water scarcity in India is due to both natural and human-made causes. India’s water crisis is man-made While climate change certainly played a role, however, Chennai’s is largely a man-made disaster. Updated: Jun 26, 2019, 09.50 PM IST Read more at: //economictimes.indiatimes.com/articleshow/69953715.cms?from=mdr&utm_sou rce=contentofinterest&utm_medium=text&utm_campaign=cppst India has just five years to solve its water crisis, experts fear. Otherwise hundreds of millions of lives will be in danger By JessieYeung, Swati Gupta and Michael Guy, CNN
- 10. WATER usage scenarioin India
- 12. TotalWater usage scenarioin construction •water used per unit area of construction largely remains undocumented. •A study by Jadavpur University in 2016 found -27 Kilolitres/Sq m of total built- up area. •actual construction was 2 Kl/Sq m •water efficiency at the production stage •actions at the consumption stage 20 Kl/ Sq m of Gross Floor Area as found by the research team in Australia.
- 13. • energy savingscould range from 20 - 30 % and water savings around 30 - 50%. IGBC RATINGS
- 15. Designing as awhole unit - Concern of all stake holders •Design with 360 degree •Avoid Eco sensitive sites •Like forest, lakes, canals •Wildlife corridors, wet land, flood land. •Follow IGBC Guidelines •Including demolition and recycling
- 17. Natural water system Maintainexisting water system and its flow Reduce surface runoff - introduce in-site infiltration methods Manage landscapes Capture water for reuse 03
- 18. Avoiding water inMasonry Construction For every 1 Sq Mt of wall construction, an average of 350 liters of water gets consumed. 04
- 19. Aerators for taps/Bubble tap/ Sensor fittings 05
- 20. Water efficient fittings Waterlessurinals Closet with max 6lt/flush Duel pipeline for flushing Recycled grey water Bib cock attachments Pushbutton taps-public Duel button flush knob Many more 05
- 21. Efficient SewageTreatment •Bio Digester •Ecofriendly Solution •No Power required •Zero maintenance •Low space requirement •Clear water output •Develop Greenery •Existing Septic tank conversion •100% recycling 06
- 22. Designing and materialselection •Proper ventilation and open space •Reduce wall length •Space efficient •Locally available materials •Local techniques •Vernacular Architecture 07
- 23. Eco-friendly – Greenconstruction •Usage of locally available materials •Avoid Cement and steel intensive techniques •Arch foundations •Arch instead of lintels and beams •Mud block or Rammed earth walls •Exposed Masonry •Filler slabs •BrickVault Roof 08
- 24. Harvest Rainwater •Not aconcept only during rainy season •Its 365 days year method •Store water •Recharge •Plant trees 09
- 25. Water Budgeting •Calculate waterfalling on your surface •WQ = A(Sqm)x CF x ARF •InstallWaterflow meters •At inflow and outflow pipes •Give star Ratings •Incentive for staff •Appreciate Innovativeness •Look for unsung hero 10
- 26. Rastreya Aviskar Saptaha- APJK National InnovationWeek - on water efficiency and Carbon Footprint •All Govt School to calculate the total water used per day/ member •Water used in their residence •Water used for agriculture •15th Oct to 21at Oct. •High School students to work on carbon footprint •One school to compile the data and upload as google form in DSCRT website
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- 28. Water and finance -are same •Hard cash : Surface water •S.B. Account: Shallow Aquifer •F.D. Account: Deep Aquifer YOUTUBE CHANNEL - WATER IS LIFE – SAVE WATER- RAJENDRA KALBAVI LIKE-COMMENT-SHARE -SUBSCRIBE 12
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