công nghệ xử lý nước thải công nghiệp

 
Chương 1
Giới thiệu chung
1.1 Nhiệm vụ đồ án môn học
!"#$!%&'()*"!+$!"#,%"-%
.$/012$3214+!256%+$7829%$%+$
')*!"#: !"#;<'=>%/<?"#,%.$"7&@2A+$"
)B,%'@2C1+D#6:
!"#$6EF(11G#1$1+CH2"';H@I6/J
EKL+$+@L-#))#&@4%%2)#&M"+$)#4%%:"
NH"#'E,%'@6$HI6/J;"%A'FM"-%:O+CA0
'EHKL;"'%+$">DO>O@A;%)I%
%2"A"%/#&+$>O"A;%/.#)B'0
>O1P,A&Q&NA%$6@I6:
"';6+R,%'6@9$!"#'6/"SJ%6@
-M"TU VWXYYZ[\ :
1.2 Nội dung thực hiện
]+?0&0
]^?%9@
]N"0&0
]N"&0
]"$$/+_26/+_
V/+_67/`
V/+_!L')PAAD@
VY/+_0@O?9:
Giới thiệu sơ lược khu vực thiết kế:

V
 
1.2.1 Về địa lý
$1a\U;O)#6E*%"%6+F)NW2VZV&6

X
:U1+
>C,%1:U:
F!)P&"VYb:YYY-26C'E)P!$WZ:cbV-[&6
X
:
dN%@\51TCXe
dN%PA\51TCVe
dN% %61TCc:
1.2.2 Khí hậu
$1a\U`6"+*';6*%CN'#"26E36;%6*%6%f&@g:
*%6%'(/5'.hVV246*%&@.VXW36!%: ';
/OXciU2%"HSWYiU2H1HVj2ZiU:^(6%/O,%$1
'#V:bWb66[362/O2'EJ6&@&N'#/O>P[36cb2hk:
$1a\Ul/l%;N$;6*%PAfPA %6+$\5fm@
\5:;PAfPA %6.nEL2'E/Oj2o6[!2+$"6*%6%:;;\5f
m@\5./<@2'E/OX2W6[!2+$"6*%&@: "$%4;;N1"M"
 %6f@ %6+$"&"jh2/Oj2c6[!:
1.2.3 Thủy văn
$1a\U;j67'D$,A'#"
dN%@\5$!@p$4)$X:jYY62/-/S&%$TCXe
dN%PA\5$&S\0 q)$X:jYY62/-/S&%$TCVe
dN% %6$&Sr)$W:WYY62/-/S&%$TCc:
1.2.4 Tính chất nguồn nước thải
STT Thông số Đơn vị Giá trị
V 1 s o
X a& s oYY
j pp 6[ jYY
W pp 6[ XVY
h U%

Xt
6[ XYY
o Uu

6[ XhYY
c !Uu 6[ XXYY
Z pu
W
Xs
6[ b
b U"v"6 d [VYY6 XVY
h
X
 
Chương 2
Tính toán lưu lượng thiết kế mạng lưới thoát nước
2.1 Tính toán lưu lượng nước thải sinh hoạt của khu dân cư
$A
:
VXY XVWXVh
VYYY VYYY
ng
tc
TB
Q N
Q
×
×
= =
wXhcYh2Zx6

j
['y

s
TB
Q
w
$A
XhcYh2Z
XW j2o XW j2o
ng
TB
Q
=
× ×
wXbc2hx[!y
z

wV2jh

6%
V2jh Xbc2h WYV2o
s s
c TB
Q K Q= × = × =
x[!y
Bảng 2.1!&@'D4%,%!"#:
Q
TB
(l/s) h Vh jY hY VYY XYY jYY hYY ZYY VXhY+$L

K
c
j2V X2X V2Z V2c V2o V2W V2jh V2Xh V2X V2Vh
2.2 Tính toán lưu lượng công cộng
2.2.1 Bệnh viện
U;V/++VYY-/2SJWbYsbYZ['[-
9SJWhY['[-:
"
:
WhY VYY
VYYY VYYY
gi
tc
bv
Q N
x
Q = =
wWhx6
j
['y
\+;jYP+S1R+R2SJVbfho[-[$A
9SJjZ[-[$A:
P+S
:
jZ jY
VYYY VYYY
nh
tc
bv
Q N

x
Q = =
wV2VWx6
j
['y

 P+Sgiuo nh
bv bv bv
Q Q Q= + =
WhtV2VWwWo2VWx6
j
['y
2.2.2 Trường học
$1a\U;h-9+!(9!$XYjbW:
SJXY[-:'
:
XY XYjbW
VYYY VYYY
tc
TH
Q N
x
Q = =
wWYc2ZZx6
j
['y
j
 
2.2.3 Khách sạn
!;X&!#:

SJ)$"&VZY[-:$A
SJ)$"P+SjZ[-:$A
Khách sạn 1:
;XYP+S+$hY14G+hY-&:

&!
:
VZY hY
VYYY VYYY
kh
tc
Q N
x
Q = =
wbx6
j
['y
P+S
&!
:
jZ XY
VYYY VYYY
tc
Q N
x
Q = =
wY2cox6
j
['y
Khách sạn 2:

;XhP+S+$cY14G+cY-&:
&
&!
:
VZY cY
VYYY VYYY
tc
Q N
x
Q = =
wVX2ox6
j
['y
P+S
&!
:
jZ Xh
VYYY VYYY
tc
Q N
x
Q = =
wY2bhx6
j
['y

&! &!V &!X
Q Q Q= +
wbtY2cotVX2otY2bhwVh2XVx6
j

['y
T

wT
/+
tT

tT
&!
wWo2VWtWYc2ZZtVh2XVwWob2Xjx6
j
['y
2.3 Tính toán lưu lượng cho nhà máy sản xuất gang
!$1;V$6A+hYYY@P%$6j%:
p@P"6{%:
Ca 1: h:YYYhYkwXhYYx@Py
Ca 2: h:YYYjYkwVhYYx@Py
Ca 3: h:YYYXYkwVYYYx@Py
$6A;XYk@PxVYYYU yl1PlE+$ZYk@PxWYYYU yl1P
l;:
SJl1Pl;
>
V
wWh[%[-
SJl1PlE
>
X
wXh[%[-:
SJ56"1Pl;
>

j
woY[[
SJ56"1PlE
>
W
wWY[[
W
 
2.3.1 Lưu lượng nước thải sản xuất.
$6A;@!HhYYH[$A2SJXhfhY6
j
[H!1
96wXh6
j
[H!1:
$A
/
hYY XhQ M m= × = ×
wVXhYYx6
j
[$Ay
^(".%
Ca 1: VXhYYhYkwoXhYx6
j
[$Ay
Ca 2: VXhYYjYkwjchYx6
j
[$Ay
Ca 3: VXhYYXYkwXhYYx6
j

[$Ay
2.3.2 Lưu lượng nước thải sinh hoạt:
Ca 1:
;XhYYU "';ZYkxXYYYU yl1Pl;+$XYkxhYYU yl1PlE
;
p
XYYY Wh
VYYY
Q
×
=
wbY6
j
[%
@
p
hYY Xh
VYYY
Q
×
=
wVX2h6
j
[%
Ca 2:
;VhYYU "';ZYkxVXYYU yl1Pl;+$XYkxjYYU yl1PlE
;
p
VXYY Wh
hW

VYYY
Q
×
= =
6
j
[%
@
p
jYY Xh
VYYY
Q
×
= =
c2h6
j
[%
Ca 3:
;VYYYU "';ZYkxZYYU yl1Pl;+$XYkxXYYU yl1PlE
;
p
ZYY Wh
jo
VYYY
Q
×
= =
6
j
[%

@
p
XYY Xh
h
VYYY
Q
×
= =
6
j
[%
w|
%V %X %jNTSH c c c
Q Q Q Q= + +
wbYtVX2hthWtc2htjothwXYh6
j
[$A:

h
 
2.3.3 Lưu lượng nước tắm của công nhân
"6{%!@P'(56l1Pl;$ZYk+$l1PlE$XYk:
Ca1:
;
%6
oY VoYY
bo
VYYY
Q
×

= =
6
j
['
@
%6
WY VYY
W
VYYY
Q
×
= =
x6
j
['y
Ca2:
;
%6
boY oY
hc2o
VYYY
Q
×
= =
x6
j
['y
@
%6
oY WY

X2W
VYYY
Q
×
= =
x6
j
['y
Ca3:
;
%6
oWY oY
jZ2W
VYYY
Q
×
= =
x6
j
['y
@
%6
WY WY
V2o
VYYY
Q
×
= =
x6
j

['y
w|
%V %X %jtam c c c
Q Q Q Q= + +
wbotWthc2otX2WtjZ2WtV2owXYYx6
j
['y
2.3.4 Tổng lưu lượng của nhà máy
nm sh sx tam
Q Q Q Q= + +
wXYhtVX:hYYtXYYwVX:bYhx6
j
['y
2.4 Tổng lưu lượng nước thải của thành phố
tc sh cc nm
Q Q Q Q= + +
wXh:cYh2ZtWob2XjtVX:bYhwjb:YZYx6
j
['y
o
 
Chương 3
Lựa chọn dây chuyền công nghệ
3.1 Thành phần nước thải
!"#,%&+?;'7N'(<l/!%
Bảng 3.1 z0>1PN6B!"#,%&+?
STT Thông số Đơn vị Giá trị
QCVN - 14/2008
C
Giá trị

K
Giá trị
C
max
V 1 s o hsb s hsb
X a& s oYY s V s
j pp 6[ jYY hY V hY
W pp 6[ XVY jh V jh
h U%
Xt
6[ XYY V
o Uu

6[ XhYY hY V hY
c !Uu 6[ XXYY hY V hY
Z pu
W
Xs
6[ b Y2X V Y2X
b U"v"6 d [VYY6 XVY
h
jYYY s jYYY
'%"1q1,%@!@I6"!"#&%01
C&@+(>U
6%
'(N"!%
U
6%
wUz
"';

U
6%
$'E'%"1q1,%@!@I6"!"#&%
01C2N/`6%6SNx6[ye
U$'E,%@!@I6>A':
z$!N>A6@2"#:L!l)+R2L!l@E+$
z@1)R@GN'E'%"1q1""@!1+$F
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Ưu điểm:
• >%":
• ‘S3("+C$:
• ‘/*)2S6'(1N/*:
• \*!%)I:
• ))}H1S6'(1N/F!))}:
• U;&33(.&N6M%:
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&@#1:
Nhược điểm:
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• L
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Chương 4
Tính toán thiết kế các công trình đơn vị theo phương án 1
4.1 Tính toán ngăn tiếp nhận nước thải
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Thông số Kích thước
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4.2 Tính toán thiết kế song chắn rác
4.2.1 Tính toán mương dẫn nước thải đến Song chắn rác
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0),%301C
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Các thông số tính toán Kí hiệu Giá trị Đơn vị
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4.2.2 Tính toán thiết kế Song chắn rác
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Thông số thủy lực
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Thông số thiết kế Đơn vị Giá trị
Kích thước bể lắng
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Mương thu nước
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Vùng chứa cặn
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