Ch CNSH 2 K50 43
.
I.
1.
4.
:
V
L
=
2
18µ
, m/s [ 1 222 ]
:
V
L
:
o
: , µ
o
= 10
-3
Ns/m
C
o
:
, C
o
= 0.35 kg/m
3
µ = µ
o
( 1 + 2.5C
o
) = 10
-3
( 1 + 2.5 * 0.35 ) = 1.95 * 10
m/s
:
Ch CNSH 2 K50 44
t =
=
3.5
0.56 10
L
.
V
nt
=
< 56* 10
-5
F >
500
5610
5
243600
= 10.33 m
2
:
V = F * H = 10.33 * 3.5 = 36 m
3
: V = 36 * 1.2 = 44 m
3
:
:
R:
, %
t:
, h
a, b:
5
:
R =
+
=
2.16
0.0075+0.0142.16
= 57.2 %
:
SS
ra
= 350 * ( 1 0.572 ) = 150 mg/l
c:
V
c
=
,m
3
/ngày [ 2 205 ]
:
G
c
: ng c
, kg/
G
c
= Q * R
SS
* SS = 500 * 57.2% * 350.10
-3
= 100 kg/ngày
Ch CNSH 2 K50 46
2.
6.
m
3
/ 500
SS mg/l 150
4500 mg/l
= 0.08 mgVSS/mgBOD
, k
d
= 0.02
-1
, K
s
= 80 mgBOD/l
:
1
= Y
0
+
0
,
-1
1
= 0.08
3 1660
80+ 1660
- 0.02= 0.2
:
,
SF:
, SF = 2 20 [ 1 393 ]
:
= Y *
0
k
d
, ngay
-1
[ 2 74 ]
=
(
)
(
1
+
)
=
0.08( 1660400 )
4500(
1
30
+ 0.02 )
= 0.42
1+
, kg/
:
Q:
, m
3
/
Y:
, = 0.08 /mgBOD
H:
, 76 %
k
d
:
:
P
b
=
5000.080.76 1660 10
3
1+0.0230
= 30.34 kg/
P
x
P
x
:
, P
x
= 43.4 kg/
trng hn h
n/m
3
1.021000
= 0.043 m
3
:
V
CH4
= a* Q* So* H * 10
-3
( 1
1.42
1+
), m
3
/[ 1 818 ]
, kd = 0.02 ngay
-1
:
,
= 30
:
, mg/l
:
C
x
H
y
O
Z
N + O
2
C
5
H
7
NO
2
+ CO
2
/M
=
, ngay
-1
:
: BOD
5
, S
o
= 1660 mg/l
X: , X = 4500 mg/l
:
, = 0.42
1660500
210
= 3.95 kgBOD
5
/m
3
/
5
50 mg/l.
= 3500 mg/l .
= 0.46, K
d
= 0.06/.
50 mg/l.
3.1.
: 0.7* 50 = 35 mg/l.
5
5
:
1
= Y
0
+
0
,
-1
= SF
:
c
:
,
:
,
SF:
k
d
, ngay
-1
[ 2 74 ]
(
)
(
1
+
)
=
0.46( 40015)
3500(
1
9
+ 0.06 )
= 0.3
5
:
Y
b
=
1+
=
0.46
1+0.069
= 0.3
:
V
b
=
, m
3
:
:
V
b
=
83
1.021000
= 0.08 m
3
m
N
=
58 10
6
14
113500 10
3
= 14.4 mg/l
3.3.
T
= 3500 mg/
:
Q
=
=
3500
120003500
= 0.42
3.5.
OC
0
=
( )
1000
- 1.42P
b
, kg/[ 2 105 ]
.
OC
0
=
( )
20
o
C , C
s
= 9.08 mg/l
C:
, C = 2 mg/l.
, OC
t
= 237.3 kgO
2
/
OU:
,
300mm,
2
/ m
3
f:
, f = 1.5
3.7.
/
/M
=
Ch CNSH 2 K50 53
/
4.
2
8.
m
3
/ 710
BOD mg/l 15
N
mg/l 29.6
pH 7.2 4.1.
o
=3500/ 0.7 = 5000 g/m
3
C
t
:
, C
t
= 12000 g/m
3
V
l
:
max
= 7 m/h
C
L
= 6000 g/m
3
K = 600
V
L
= 7 * e
6000*600*10-6
= 0.19 m/h
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