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Flashcards in 7 - Water And Waste Deck (18)
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1
Q

What are the 4 ways water issues can be addressed with?

A
  1. Rainwater collection
  2. Greywater recylcing
  3. Water efficiency
  4. Stormwater
2
Q

What is the water footprint concept?

A

Direct and indirect water use of consumer or producer

Measured in terms of

  1. Water volume consumed
  2. Polluted per unit of time
3
Q

What is green, blue, and grey water footprint?

A

Green: volume of rainwater evaporated
Blue: volume of surface/ground water evaporated
Grey: volume of polluted water

4
Q

What is the importance of metering (4)

A
  1. Helps find leaks
  2. Identifies consumption patterns
  3. Reduces consumption
  4. Charging regimes sends pricing signals
5
Q

What are the 4 water strategies in commercial buildings?

A
  1. Water efficiency
  2. Rainwater harvesting
  3. Grey water harvesting
  4. Innovations (black/yellow water harvesting, composting toilets)
6
Q

What are 4 uses for rainwater harvesting?

A
  1. Reduces stormwater runoff
  2. Flushing the toilet
  3. Watering the garden
  4. Laundry
7
Q

What are the 7 system components of a basic rainwater harvesting system?

A
  1. Catchment area
  2. Conveyance
  3. Downspout filter
  4. Storage
  5. Overflow
  6. Outlet
  7. Pump and filter
  8. Distribution system
8
Q

What does rainwater harvesting success rely on?

A
  1. Annual rainfall
  2. Roof catchment area
  3. Tank storage size
  4. Demand by people and uses
9
Q

Which materials can be used for roof cladding for rain harvesting?

A
  1. Steel
  2. Clay tiles
  3. Slate

Not timber or bituminous materials

10
Q

What is grey water? What is it best used for?

A

Waste water from bathroom sinks, showers, laundry

Watering gardens or flushing toilets

11
Q

What are the 4 components of a basic grey water system?

A
  1. Collection and distribution pipes
  2. Reservoir
  3. Filter and pump
  4. Subsurface irrigation
12
Q

What are the 3 components of a basic composting toilet system?

A
  1. Toilet
  2. Composting chamber
  3. Ventilation
13
Q

What are the 3 main reasons to minimising construction waste?

A
  1. Financial - minimising costs on disposal and purchase
  2. Environmental - landfill, pollution, waste of algs resources
  3. Social - clean image, minimizes wastes on community
14
Q

How much do studies show that 5 tonnes of construction waste on the average 3p house can be reduced by?

A

80%

15
Q

What do you need to think about with building materials and selecting products?

A
  1. Recyclability
  2. Resource efficiency (less resources used to make the same product)
  3. Future salvage and reuse
  4. Durability
16
Q

What is the minimum a waste management plan should have?

A
  1. Defined responsibilities
  2. Identifying the reduction measures that will be used in the project
  3. Identifying waste types, segregating on-site
  4. How and where materials will be stored and end up
  5. System of record keeping for all data
17
Q

What are the big 3 wastes from construction?

A
  1. Treated timber
  2. Plasterboard
  3. Plastics
18
Q

What are the 4 waste minimisation phases?

A
  1. Design
  2. Construction
  3. Occupation
  4. Demolition