Week 2: Reading 2a and 3 Flashcards
Name and describe the two modeling objectives for water demand
Existing Systems: develop a model to accurately simulate operation of exisiting system
Proposed Systems: develop a model that will become a planning tool to guide design of future system
What is the difference between macro and microscale models of demand?
Macroscale models are used to estimate overall water demand, treatment facilities, and system storage
Microscale models are used to estimate water demand for specific system such as a pumping station used for fire protection
What are the 5 types of data used to create water demand model?
- system data
- operational data
- consumption data
- climate data
- demographic and land use data
What is system data?
Physical layout of system (includes process drawings and dimensions)
What is operational data?
Info about system in operation (includes data such as pump rates and water level)
How are water usage rates generally determined?
Using historical data multiplied by new units
What is the distinction between dissolved and suspended solids?
The size - smaller than 1.2 micrometers is dissolved and greater is suspended
What is the difference betwenn fixed and volatile solids?
Volatile (often organic) will volatize at 550 C
What is the sum of dissolved and suspended solids?
Total Solids
What causes a “true colouration” of water?
Dissolved materials, often organics
