Xử lý nước thải bằng công nghệ sinh học hiếu khý


Bản chất của xử lý nước thải bằng công nghệ sinh học là phân huỷ các chất ô nhiễm hữu cơ nhờ vi sinh
vật. Tuỳ thuộc vào bản chất cung cấp không khí, các phương pháp phân huỷ sinh học có thể phân loại xử
lý hiếu khí, kỵ khí hoặc tuỳ 4ện.
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
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 !"#$%&'()*"++,(-./*012$/34#&

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5+,6712$+84)91&084:;(-#%+8.0
#-<
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=0012$+8166>#"?@84&0A"012$/
B81+$+80($C<
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D7(E12$@FG HIG C
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JK"=/+4#L
 3+,8
F.1.
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Quá trình xử lý sinh học hiếu khí nước thải gồm ba giai đoạn sau:
MGN&0012$F
N


G
O
PG
Q

RSFG
Q
P
Q
GP 
M=TU.8&4F
N


G
O
P
V
PG
Q
RSFG
Q
P
Q
GP 
MW/X)8&F
Y

Z
G
Q
PYG
Q
RSYFG
Q

PY
Q
GP
V
[ 
F0\0#]N.$.0.A-N#"%(^!&_/'&<=#&0#]N
/'&HL"'&(^9&\0#]&N&0&0\0#]NA9()+81"&$#1
^<=`a&#'0b'*"++,\0#]N/'&A-"8
+++,#%6'$*(U6712$:""#&\0
#]c&'dHb84&0H-.:&'()0(&'H\0#]4a./X<=#&92\0
#]8H\0#]c&'d@ea#&"C8\0#].T1<
+++,#%6'604\0#]c&'d604H-?H-
"&H(K"H-.:#"a&0+489(f<
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1 Công nghệ xử lý nước thải bùn hoạt &nh hiếu khí (Aerotank)=#&-c&'d++,#%6'$H
\0#]./XN#"g.Nh+c#&(^77<574(4&0i1.(*
U&N4)07+86#]c&'d%#'0$<
I1*".$.0.8./X+1.N>:+84,()++,(U6#]"&@Q<jjj4klm
Y<jjj4klC6&+,#./X2$"&+8i4_&9N<=9AU(-48i^f
+8g"&^;U<
b()&N&8"#&#"?-(UQ(U?$Q4k<=9()67&N&8"#&-c&'d.7
)+8&
=X92"U:;@FFA#&CnU++,XokDp
()p
=9()#%+8&'()*"++,p
b().B4()d7#&\0#]#"&(T1p
lU011'&8&p
84U&N&8"<
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I-&'()0(&'89N+c&'da&-84(i+8N'<q0#]N#"#&-rIs
$!#&-c&'d&'()7tA(^1N#"#&c4)-+8(U!iU
a&0@uCml84(ip@QCmW:p@VCmlp@vCm_p@YCm<
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3. Công nghệ sinh học tăng trưởng dính bám
I-Ic&'=55r5,r=#% ' I04&'()*"-8$!
#LU.++,#%6'$t08++,.0#-604#+,
g.Nh(_#&-<
&A^(-4+U#)+^\Nw4.(ix+,8"H
+0.67;#%604("(U:670#)#y<;4QjujHzs{{
(y.0#-+8/1.g8604eoIs|oIs<
4. Công nghệ lọc sinh học (Trickling Filter)
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I-#&N84)f.:#&(A0++,#%9(f#.+,<I-('"&b44).+,
6314+++,6#(A<(\".+,8}14&_?#(A<
5,L8(06;4&_&_9+,A]c0"<+,8(0&_?]'6"&()#&&jHYMQHY4H#]
8uH~4<I-++,8(06;4LA6'#•<(U./.9#.+,L).,./.9<I-++,816€&A-A
6'#•H+H&_^6'0+^"&(T|vmuQ4<I"&'+,16€&L6c8@uC+,+6••(:H@QC5,+
6•"H@VC+,("6'<
F12$}f./X%\i-++,6#.+,<F012$A#&}f1..7+8&48++,68jHumjHQ44+8f
./X%++,<E++,#%+8.0#-H^68.48;H6&(AH&N(yfg7#0^68.48
+,<+,H4#Lf(U]8"0^4_+,<
E^68.48;H\0#](b&012$N#"#hg.Nh+++,i^4_+,<E\8++,%(/f./X
)8&H•;604^4_+,+8f#"#<
‚lƒ„…Eƒ
r†=s‡ˆzl‰
l‚z
Šr†5‹=
„…Eƒ

r†=s‡ˆzIŒD
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ra&4€
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