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Water and Wastewater TreatmentFor Hospitals
- Sangeetha Subramanian
Medicall conference, 2011
Chennai.
Fluid control equipments, Chennai 600006.
www.flu-con.com
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Water Requirement in Deepam Hospitals, Tambaram.
(70 Beds - fully Occupied 7/24)
Treated Water
(DM,RO,UV)
Fresh
Water
40,000 lts per
day
20,000 lts
per day
Floor Wash,
Landscaping,
Flushing
Bathing & Cleaning,
Linen & Laundry
cleaning
Glass ware,
Reagent
Preparation,
Diagnostic test
Drinking,
Food
Preparation,
Utensils
Washing
Operation
theater,
Dialysis Unit
NonContactPurpose Contact Purpose Laboratories Canteen PurifiedWater
Bore Well/Private
Sources
(50,000 lts)
Recycle
Water
10,000 lts per
day
30,000 lts per
day
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Cost Analysis
Recurring Cost(INR)
Plant O&M - 4 lakhs 7 lakhs per annum
Water cost - 1000 per 12,000 lit tank
* - Recurring cost can be significantly brought down by proper
professional input at initial planning stage.
Capital Cost (INR)
Deep Bore well/Tube well - 50,000 2,50,000
R.O System - 4,00,00 - 7,00,000
U.V System - 50,000
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WATER USAGE AND RECOVERY SYSTEM FOR
HOSPITALS
Treatment Plant
Treated Water
tank
Fresh Water
tank
Garden
Municipal
Sewage
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Hospital
Wards/
Beds
Kitchen/
Canteen
Linen/
Services
Area
Operation
Theater
Out
Patient/
Reception
Laboratory
Services
Radiology/
oncology
unit
Biological
TreatmentPhysico-chemical
Treatment
Organic
wastes,
pathogens,
antibiotics
Sterilizing &
Disinfection
agents,
pathogens,
organic
wastes,
human
tissues, blood
Organic
Wastes
Organic
wastes,
pathogens,
sterilizing, &
Disinfection
Agents
Spent liquid
isotopes,
photo
developers,
X-ray
Developers.
Detergents,
organic
wastes
Food
Wastes,
Detergents
Solid WasteTreatment
150 lpd
50 lpd 50 lpd50 lpd
100 lpd 100 lpd100 lpd
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TypicalSTPlayoutforhospitals
Equalization
TankChlorine
Dosing Tank ACFPSF
Chlorine
Dosing Pump
Filter Press
To
Recycle
WaterTank
Filtrate to Head Works
Bar Screen
Tube Settler
Bio Scrubber
Chimney
Air
Aeration Tank
Blower
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Skid Mounted Water Treatment Plant
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Concern Areas and Solutions
Odor
issues
Bio
scrubber
Plant O & M
breakdown issues
Operate on
contractualbasis
Contamination
of treated water
line and fresh
water line
Separate tanks
and piping from
planning stage
HygieneDepends on
maintenance
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Dolphin Hotels, Hyderabad, STP
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STP LOCATED IN BASEMENT OF HILTON HOTEL NEW DELHI
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Need for Onsite Sewage Treatment
Liquid wastes in hospitals no strict guidelines unlike Bio-
medical wastes handling.
Governmental Regulations becoming increasingly strict
Hospital accreditation
Fresh water expenses
Untreated sewage hauling expenses
Land Cost
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Effluent limits suggested by CPCB
Parameter Permissible limit Unit
pH 6.5 to 9
Suspended solids 100 Mg/l
Oil and grease 10 Mg/l
BOD 30 Mg/l
COD 25 Mg/l
Bioassay test 90% survival of fish in
100% treated effluent for 4
days
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Size of hospital and onsite STP
requirement
DPCC 500 beds or more
TNPCB more than 50 beds/ dwelling units
KSPCB 200 beds or more(Mangalore).
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project delivery mechanism for optimizing project cost
and quality
Operation &
Maintenance
Ensures that designer is
ultimately responsible
for quality performance
Higher plant
operation efficiency
Continued client
interaction
Least downtimeHigher efficiency due to
in-depth understanding
of assets created
Preparation of AMP
(asset management
plans) for optimizing
O&M activities
Technology
Planning and
technology
selection is
usually the most
critical step
Requires in-
depthunderstanding
of technology
and design
factors
Design &
Engineering
Design &
Engineering to
reduce project
cost and
implementation
risks
Optimization ofproject design
for streamlining
project
implementation
Bought outs
Civil
Technology
Integration
Civil and bought out
portion entirely
outsourced to
dedicated local
contractors
Technology
Integration involves:
Pipingelectrical
Instrumentation
Allows to optimize
project construction
time and quality
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About Us and Our Associates
Fluid control equipments Chennai based company involved
in manufacture of water and wastewater treatment
equipments for more than 35 years
Spans Enviro Delhi based consultancy firm involved in
environmental engineering consultancy and plant design for
more than 30 years
Hydrosoil engineers Chennai based hydro-geological
engineers with more than 20 years experience in bore wells
and tube wells, water testing and analysis