Friday, March 8, 2019

Framework for KIT Hydrological System

  1. Framework for KIT Hydrological System

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  2. Objective :
    1. Stop or Reduce present dependance on external water sources
    2. Aim for Zero-budget Closed loop recycling water system
    3. KIT's own usage model can become example of best Eco-Environmental 
    approach & methodology of best practices.
    4. Integrate with PBL and involve student/faculty teams as part of 
    learning program

    Methodology :
    1. Water Budget : Input - Output Modelling
    2. Build Total Resource Inventory with visual information, mapping of 
    resources on campus
    3. Mutli-level use of resource at various levels of degradation by 
    recycling and grading use quality requirements

    Hydrological System Model & Inventory :

    1. KIT Campus boundary
    2. Larger watershed feeding KIT Hydrology GIS, contour data
    3. Assess throughput from larger system passing through KIT
    Volume of Water; Duration, Period, Surface run-off, Sub-surface flows.
    4. Preciptitation over KIT Campus of 27 acres
    5. Area of paved surfaces with run-off flowing to drains
    6. Built Areas, natural drainage, runoff and Harvesting potential.
    7. Present Storage areas :
    1. Open Well : Volume, Duration, period, daily uptake and recharge 
    time, volume
    2. Storage tanks : Overhead, underground, volume, linked to which 
    buildings?
    8. Surface water storage areas, efforts, volume, trenches, bunds, sizes
    9. Geological profile of site
    Data from GSDA, consultants, vertical section profile, permeable. 
    impermeable zones, depths,
    Soil types, Ground cover, Water retention, Organic carbon
    10. Mapping of Plumbing of water supply main lines, branches to 
    buildings, individual buildings
    11. Mapping of drainage system, septic tanks
    12. Water Audit :
    Consumption types & volume :
    Toilet, Bath, Washing, Canteen, Drinking, Workshops, Cleaning, Garden
    Provision for fire fighting needs
    13. Daily, Monthly, Annual consumption
    14. Water brought from outside systems : Gram Panchayat, Tankers, 
    Volume,Costs
    15. Tree cover, location, species, density, shade index
    16. Solar insolation data, Evapo-transpiration losses of open water 
    ponds, storage
    17. Contour bunding calculations, volume, outcomes, costing

    Strategies, solutions

  3. 1. Surface water harvesting through

    Keyline Method (Yeoman), Contour bunds, maximize run-off through 
    site, small decentralized
    storage ponds. Impervious lining, polymer fabric / cement fabric.
    2. Ground water prospects for bore well, perched water table
    3. Augment groundwater strata by bore blast fracturing of impervious 
    strata
    4. Improve groundwater recharge and retention by increasing soil carbon 
    and ground vegetative cover.
    5. Reduce evapo-transpiration losses through vegetative cover like 
    Azolla, Water Hyacinth and general shade through tree cover.
    6. Multiple level use of degraded water by recycling, separate plumbing, 
    filtering, and storage for secondary uses like toilet flushing, urinal 
    flush, garden use.
    7. Use water efficient plumbing and fixtures, leakage monitoring smart 
    systems.
    8. Building rainwater harvesting systems to be decentralised. Storage at 
    point of use.
    9. Increase green cover by creating natural ecological landscape in 
    niches, no maintenance human forests.
    10. Swales for natural irrigation for needs of landscaped areas of 
    campus.
  4. Directives: Shri Dilip Joshi Sir

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