CEE 577
Liaqat Karim
Parameter
Volume
Area
Solid Loading
Sus. Solids
Flow
Vs
rho
phi
Value
Units
2.30E+10 m3
3.03E+09 m2
1.14000E+013 g/year
20 mg/L
167000000000 m3/year
2.5 m/day
2.4 g/mL
0.9
Symbol
V
A
Ws
m
Q
Vs
rho
phi
Solution
m
mi
Rho
20 g/m3
68.2634
CEE 680
Spring 2016
Homework Set #2
2 points total
1. Thermodynamics #1
Based on only the following information, determine the standard free energy change G and K value at
25C and 1 atm for the dissociation of carbonic acid, H2CO3 = H+ + HCO3-.
Available
CEE 680
Spring 2016
Homework Set #1
6 points total
1. Measures of Concentration & Charge Balance
In 2008 Northampton MA completed construction of a filtration plant to treat their surface
water supplies (see: http:/www.ecs.umass.edu/eve/background/Utiliti
CEE 680
Spring 2015
Water Chemistry
Homework Set #9
Work in groups of 3-4 for this homework
Aluminum Solubility Continued
Below are the relevant chemical equilibria for amorphous aluminum hydroxide and
aluminum phosphate. These will be used in the problem
CEE 680
Spring 2016
Homework #3
1. Acid/Base Equilibria I (2 POINTS)
Determine the complete solution composition of the following systems (all are added to 1
liter of pure water), based on the governing equations. Make one or more
simplifying assumptions,
CEE 680
Spring 2015
Water Chemistry
Homework Set #6
Problem #1 (2 points)
In Spring when temperatures are on the rise, it is common for conventional activated
sludge wastewater treatment plants to start nitrifying. When this happens, the pH
drops due to t