Transcript Facilities Management and Design

Facilities Management and Design
Chapter 5
Water and Wastewater systems
Water usage levels and patterns
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Water consumption levels vary
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Type of hotel
Location
Facilities
Managerial attention to water usage
Larger properties use more water per room than
smaller
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As the level of services increases, so does water
consumption
On-site laundry
Kitchens
Irrigation
Cooling towers
The basic structure of water
systems
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Deduct meters—no disposal charges on cooling towers,
irrigation, swimming pool
Subsystems and isolation devices
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Fire systems
Potable systems
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Hot/ Cold
Equipment/ Human use
Backflow preventers
Building water system pipes
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galvanized iron
Steel
Copper
Plastic (PVC, CPVC)
Contain water under pressure
The basic structure of wastewater
systems
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Storm sewer system (rainwater)
Sanitary sewer system (removal of waste
products)
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Grease separator or grease trap
Facility owned sewage systems
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septic tanks
treatment plants
Plumbing risers
sewer gas traps
Vents
Pipe insulation (to prevent heat loss, condensation)
Water quality problems
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Potability
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Bacteria
Nitrates
Trace metals
Organic chemicals
Aesthetics
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Color
Odor
Taste
Clearness
Mineral content
Acidity/alkalinity
Legionnaires' Disease
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bacterial growth in
cooling towers
Water heating
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Heating cost exceeds water cost
Safety equipment - proper installation
(mixing valves)
Separate water heaters/boosters for kitchen
needs
Dedicated water heating systems for laundry
operations
Water heating options
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Traditional options
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directly fired water heaters
indirectly fired water heaters
Non-traditional options
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heat pump water heaters
waste heat recovery
solar energy
Water system maintenance issues
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Treating water to make it appropriate to the application need
replacing sacrificial anodes
cleaning filters and strainers
lubricating pumps
checking hot water temperature settings
checking pressure relief valves
repair of leaking valves
general caulking, sealing
water heater inspections
wastewater system clearing
inspecting and cleaning gutters, roof drains, site drainage
Water for entertainment and
recreational purposes
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Landscaping elements
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Fountains
Ponds/ Lakes
Streams
Recreation
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Swimming pools
Slides
Pool maintenance
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Involves cleaning the pool, equipment, and water
Skimming
Vacuuming
Brushing
Lime buildup removal
Equipment pumps, filters
Water pH level 7.2 to 7.6
Chlorine and algicide control algae
Pool heating
Water conservation
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encouraged by rising costs, decreasing
availability, and government restrictions on
water usage
Conservation strategies
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low-flow shower heads (check guest reaction)
re-use of water (gray water)
careful control of landscape irrigation
foot-operated faucets in kitchens
keeping up with basic maintenance on water
systems