7 - Water And Waste

Question 1

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

Answer 1

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

Question 2

What is the water footprint concept?

Answer 2

Direct and indirect water use of consumer or producer

Measured in terms of

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

Question 3

What is green, blue, and grey water footprint?

Answer 3

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

Question 4

What is the importance of metering (4)

Answer 4

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

Question 5

What are the 4 water strategies in commercial buildings?

Answer 5

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

Question 6

What are 4 uses for rainwater harvesting?

Answer 6

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

Question 7

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

Answer 7

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

Question 8

What does rainwater harvesting success rely on?

Answer 8

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

Question 9

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

Answer 9

1. Steel
2. Clay tiles
3. Slate

Not timber or bituminous materials

Question 10

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

Answer 10

Waste water from bathroom sinks, showers, laundry

Watering gardens or flushing toilets

Question 11

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

Answer 11

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

Question 12

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

Answer 12

1. Toilet
2. Composting chamber
3. Ventilation

Question 13

What are the 3 main reasons to minimising construction waste?

Answer 13

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

Question 14

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

Answer 14

80%

Question 15

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

Answer 15

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

Question 16

What is the minimum a waste management plan should have?

Answer 16

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

Question 17

What are the big 3 wastes from construction?

Answer 17

1. Treated timber
2. Plasterboard
3. Plastics

Question 18

What are the 4 waste minimisation phases?

Answer 18

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