AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 5 doc
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 5 doc
... diffuser
40hp/1unit
45 (6 0)
*
23 (1 1 6) 210 (2 6. 1) — — 1 .55 (2 .5 5) Field/d = 9.2 m
gas flow = 420 scfm
Stenstrom, 1989
ST Draft tube turbine/75hp
2 units
123 (1 6 5)
*
60 (8 0)
106 (1 4 2)
182 (2 4 4)
24 (1 1 0)
11 (5 3)
20 ... turbine /50 hp
1unit
45 (6 0)
22 (3 0)
16 (8 0)
7 (4 0)
69 (8 . 6)...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 2 docx
... 20.3
10 11. 29 25. 1
20 9.09 29.8
30 7 .56 34.0
40 6.41 37.6
FIGURE 2.10 Effect of temperature on oxygen saturation.
C
s
*
H
mg L
mg L
air
water
,*
()
()
()
*
.
*
()
=
−
()
()
°
()
H
p psia
CT K
v
S
55 30 ... Nasr, S., and Fitzpatrick, B. (2 00 0).
“Full-Scale Demonstration of Improvement in Aeration Efficiency.” ASCE J. Environ.
Engr., 12 6(6 ),...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 1 ppsx
...
River
Manhattan,
NY
7 .5
(1 7 0)
Diffused,
fine pore
968
(1 98 6)
5. 57 7.12
(1 99 8)
7.43
(1 99 9)
15. 7
16.8
(Conklin,
2001;
Leonforte,
199 8)
Red Hook Brooklyn,
NY
2.6
(6 0)
Diffused 232
(1 98 8)
16.8 2.49
(1 99 8)
2.29
(1 99 9)
25
24
(Conklin,
2001;
Leonforte, ...
Coney
Island
Brooklyn,
NY
4.4
(1 0 0)
Diffused,
fine pore
65...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 3 ppt
... disc
18-cm grid 0.6 5. 5 3.6 5. 2
22-cm grid 0.6 5. 0 4.1–6.1
24-cm grid 1.1–4.7 4.4 5. 5
Ceramic dome
18-cm grid 0.8–3.9 3.4–6.0
Perforated membrane disc
b
51 -cm 24–172 2.7–4.6
30-cm 13–237 2.7–6.1
23-cm ... 4 .5 6.0 Johnson, 1993
6.8 59 .1–237 4 .5 7.8 Johnson, 1993
13.6 59 .1–237 4.1–8.2 Johnson, 1993
Disc — 25 cm ( ne) 4.7 15. 5–217 4.4–7.2 Wilfey, 1998
12.6 15. 5–217 5. 6–8.2 Wi...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 4 ppt
... h
s21 1
()
=
()
+
()
⋅∆
SOTE h
SOTE h SOTE h
h
s
()
=
()
−
()
21
∆
SOTE h
d SOTE h
dh
SOTE SOTE h
zH h
Hh
SOTE SOTE h h
s
so
S
S
so
()
=
()
[]
=⋅−
()
[]
⋅
+⋅ −
()
[]
+⋅−
()
[]
=⋅−
()
[]
⋅
()
()
1
1
0 ... 4.22 4.94 2 .5 4.81 5. 65 35. 5 4.96 6.03
9 .5 4.98 6. 05 5.0 5. 18 5. 98 71.0 4.88 5. 94
17.9 5. 24 6 .53 7 .5...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 6 pdf
... efficiencies in aeration tanks
(Okun and Lynn, 1 95 6).
In 1 953 , Budd and Lambeth (1 95 7), under the auspices of Dorr-Oliver, conducted
studies on a 55 –160 m
3
/d (8 –30 gpm) bio-precipitation pilot plant ... equilibrium constant for CO
2
system, 6. 35 at 25 C
Qm
3
/h liquid flow rate
Rm
3
-atm/gmole-K universal gas constant (8 .2 05 10
5
m
3
-atm/gmole-K)
r
v...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 7 pot
... C
i
i
n
RRi
i
n
L
f
iR
f
R
f
L
ff
R
==
=
−
−
()
−
()
=−
()
==
∞
∞
∑∑
11
11
0
,
*
*
Steady-state overall tank values
dC
dt
CC
t
Ka C C
LRL
L
f
RL
=
−
+−
()
0
KKa
t
L
f
=+
1
0
dD
D
Kdt
D
D
Kt
DDe
D
Dt
Kt
0
0
0
0
∫∫
=−
=−
=
−
ln
... tests
of oxidation ditches (Boyle et al., 198 9). In side-by-side comparisons of six munic-
ipa...
AERATION: Principles and Practice ( VOLUME 11 ) - Chapter 9 (end) ppt
... between
initial investment and long-term operation and maintenance (O and M) expenditures.
Many long-term O and M expenditures are determined by the capabilities and con-
straints initially designed ... be found in the manual of
practice, FD-13 (1 98 8).
The
in situ
process interruptive methods include hosing with either high-pressure
(& gt;4 15 kPa [60 psia ]) o...
NEPA and Environmental Planning : Tools, Techniques, and Approaches for Practitioners - Chapter 5 docx
... Enterprises Inc.
18. Energy Supply and Environmental Coordination Act of 1974. 15 USC § 793(c )( 1 ).
19. 33 USC § 1371(c )( 1 ).
CRC_ 755 9_CH0 05. indd 142CRC_ 755 9_CH0 05. indd 142 1/31/2008 4:31:24 PM1/31/2008 ... Supp 110 2 (D.C. 197 4), afrmed, 50 2 F.2d 1 15 4 (Emerg. Ct. App.
197 4).
38. Pacic Legal Foundation v. Andrus, 657 F.2d 829 (6 th Cir. 198 1)...
Fibonacci applications and strategies for traders Chapter 5 docx
... y0 w1 h0" alt=""
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