A poster on HSTU in the basis of water (how it was before - present scenario - what it should be)

1. •Water Supply
•Sanitation
•Waste water Management
•Storm Water Drainage
•Reduces demand for external fresh water by reuse of grey
water , black water, storm water
Filtered water
Aggregates
Sand filter
Unfiltered rain
water
Floating particles
INTAKEWELL
HIGHEST GROUND
LOWEST GROUND
PROPOSED BUILDING
EXISTING CAMPUS
TERRAIN
EXISTING CAMPUS
PREVIOUS WATER
FLOW OF HSTU
TOWARDS WATER SENSITIVE HSTU,A Design proposition for safe drinking and disposal…….
CONSUMPTION OF WATER IN HSTU
Agricultural ExtensionTraining Institute (AETI) (1976-1987) Hajee Mohammad DaneshAgricultural College(1988-1998)
Trainee
150 person
Instructor
5-10 person
Office staff
5-10 person
HajeeMohammadDaneshScienceandTechnologyUniversity(1999-present)
students
200 person
teachers
50 person
Office staff
30-40 person
students
11,0000
teachers
315 persons
Office staff
250 persons30,600 Ltr 3,50,190 Ltr 10,80,900 Ltr
PRESENT LAND SITUATION WITH RESPECTTO PREVIOUS
Heavey rainfalls(1.5-
2days) Logging height
nearly reach around 10-
12 inch
10-12 hours continuous
rain and it became unable
to stay here
Heavey rainfalls(1.5-2days)
Logging height nearly reach
around 10-12 inch
10-12 hours continuous
rain and it became unable
to walk
Unworthy for
walking even in light
shower
Unworthy for walking
even in light shower
10-12 hours
continuous rain and
became unable to
walk
Logging for light rain
Logging for medium rain(10-12 hour min)
Logging for heavy rainfall(1.5-2 days)
Unworthy for
walking even in light
shower
TUBEWELLWITH SOAK WELL CONTAMINATED ZONE ZONE
30 -50ft horizontally
( According to BNBC this zone is risky )
Above 60 ft
)
WATER SENSITIVE URBAN
DESIGN (WSUD) APPROACH
PRE-TREATMENT
NATURALTREATMENT
NECESSERY INFRASTRUCTURE
•BAR SCREEN
•SANDTRAP
•WASTE STABILIZATION POND
•WETLAND
•PATHWAY
•DRAIN
•WATER RECHARGE PIT
LEGEND
SAND TRAP
GRIT CHAMBER SEDIMENTATION
TANK
COVER
BAR SCREENS
SAND TRAP
REF: Trash rake project, Northern california
WASTE STABILIZATION PONDS SECTION
3D SPATIAL VISUALIZATION OF STABILIZATION POND
BANGABANDHU HALLZIA HALL
PROPOSED HALL
3D SPATIALVISUALIZATION OF WET LAND
INTAKEWELL RECHARGEWELL ACADEMIC BUILDING-1
RECHARGE PIT 3D SPATIAL VISUALIZATION
•To remove the suspended solids
•To avoided the pump cloaking
•To increase the Bacteria attachment in the FBBR
SAND TRAP SECTION
•Removal of sand, gravel and
other substances.To reduce
the flow rate in the tank
HSTU campus is located at basher hat, which is a non-municipal area. Where central municipal drainage network is absent. The
campus area is also concealed by boundary wall so no water can pass through this area. For this in rainy season water logging
problem occur. The waste water dispose area & drainage network is unplanned & inadequate. Some drinking water
sources are also being contaminated by soak pit.This are the essential issues about water in HSTU.
The land area is same as it was before on the other hand the number of people has increased. For this increasing consumption ,
waste water is also increased almost three times. But the water disposal area, drainage system remains almost same. The
percentage of rain fall here is around 1728mm yearly. 20.21% hard surface of hstu, reduce it’s natural draInage . so mainly in the
rainy reason water logging problem is common scenario. There are two main water disposal area. So what happens here storm
water easily mixed with the grey water and also for improper management of soak pit and septic tank black water easily mixed
with grey water. Again these grey water discharged to the environment without treated, it easily contaminates with the ground
water and make it risky for drinking. So to understand the problem it is essential to communicate with the people who lived
here before and also with the present users for some mental mapping. To learn about the risk zone and contaminate tubewell
zone, its important to survey the whole area and collect some necessary data for different mapping.
It is essential to reduce the pollutant from waste water & separation of rain water from it. Rain water should be reused or
sending it directly to the aquifer to recharge it. To reduce the loss of existing plants and animals of this wetland and surroundings
it should be designed properly.
So bar screening and sand trap added in the drainage system to reduce the large pollutants. For the disposal area waste
stabilization pond, wetland provided for sediment. Aquatic plants to absorb the heavy metals for maintaining the ecosystem &
to recharge ground water. These water can be used for irrigation & other purposes. Providing recharge pit to send the rain
water directly to the aquifer & it also reduce water logging. Increasing the distance between soak pit and drinking water
sources to ensure better health. Pathway for little water logged area, landscaping for better visualization of wet land area .
CENTRAL SUPPLY
CENTRAL SUPPLY +
INDIVIDUALMOTOR
INDIVIDUAL MOTOR
TUBE-WELL
PUMP HOUSE
“ A L L W AT E R I S A N O P P O RT U N I T Y N OT A T H R E AT ”
EXISTING WATER DISTRIBUUION MAP
•Wastewater-fed earthen basins growing with algae + fish
•Due to difficulties in algal harvesting :use fish to consume
•Algae : O2 for fish and bacteria
•Bacteria :CO2 for algal photosynthesis + degrade organic
MAPING OF PROPOSED ELEMENTS
STORMWATER LOGGING MAP
W E T L A N D S E C T I O N
• A wetland is an area that is saturated with water or covered by water for at least one
season of the year
• They provide a safe, lush habitat for many species of animals, so they
have high biodiversity.
• They provide a safe, lush habitat for many species of animals, so they
have high biodiversity.
3D SPATIALVISUALIZATION RECHARGE PIT
RECHARGE PIT SECTION
3D SPATIALVISUALIZATION OF PATHWAYS