1. List of Symbols
Symbol
Explanation
Dimension
Unit,
See
for example
page
A
area
L2
ha,m 2
A•
total surface area of
L2
m2
carrier in biofilters
AUR
Ammonia uptake rate MN · Mx- 1 · r 1 g N/(kg VSS· h)
b
decay constant
r1
d-1
65
B
constant in the
329
Langmuir isotherm expression
bA
decay constant/nitrify- r 1
d-1
195
ing bacteria (autotrophie biomass)
bH
decay constant/hetero- r 1
d-1
115
trophic biomass
BA
surface load
M·L- 2 -r 1 kg BOD(S)/(m 2 · d)
166
By
volumetric load
M·L- 3 -r 1 kg BOD(S)/(m 3 · d)
120
Bv;ooo
BOD volumetric load M· L- 3 -r 1 kg BOD/(m 3 · d)
136
Bv;coo
COD volumetric load M·L- 3 -r 1 kgCOD/(m 3 d)
Bx
sludge load
M·~1.r1 kg BOD(S) I (kg SS(B) · d)
121
Bx,BOD
BOD sludge load
M·~1.r1 kg BOD/(kg VSS ·d)
134
Bx,coo
COD sludge load
M·~1.r1 kg COD/(kg VSS ·d)
134
BOD(BODs) 5-day biochemical
M· L- 3
g02/m 3
38
oxygen demand
BOD7 (BOD7) 7-day biochemical
M·L- 3
g02/m 3
oxygen demand
353