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"*#D@4%5 55AuR"*"F(
"* -(4%552DDD5"<B…#,Aˆ†D
AE4hB5@,D&>(*%55HD(
RN)m2(e(">J#F%(,5!
N5 5#23F"F>e(">JLH"R@5,*"%
(D+ JM+(R2D5,"%( ,2#C(2h •2H(M+(%8
,S5@5M+#, U*"*#2;B,#*%B
5B5<4hAE!888x @ *%558"*2D D @*,
5AuB2;B,B5@2#FD+h#, H2HI
u8
6$ `KLa_JK[EHPHYOSbKLYOPY^cdlKSTHUOVQ)VK^_]U$
`#(J&…5J†
`#(JD+&5,D+J
`#(J&8
6$ $5OSbKLYOPYHbO{H(
QJ&…+Jj†•*%T(%RA!+…"((I+4
7;N(%Rdƒ†"+AT#2@+##C5,/2H
(R!x"*#8
 ?KLHOnKIPH9dSTQd{H(
i*"(#&4<2N(;uDA0# *;€4%#
#R"+T"(ƒ2#C&,"(6"(,2#-*;
AF4?8w(#2#C  (@"(+A2#C@T*2d
"€%"#*"(*;M;8
xqUO•?O‚KOwƒKLHzUO„YO…KUOXKO)?KLHOnKIPH[XdSTQHOnKIPH$
i*"(D2;-2h*;42H8
i*"(,•A*%2;€+5,*AF4?FHD]^y_b
b

,%M!*;@HDa^yc^
b

,%•(8
D# e+ *"(Yb_yZr5-I2%4+*2HA*
ba^yZr •"(2u"(e+A8-I,b]r•"(M
(R"8
 PHwƒKL†„dnKL
 /„dnKLHPU
'(("+AT#(Ru5!D"&#C"F
b[D"*##S+(T886 A!DC2-5(e(">,
"*JD+#5,J;3:#A!DC2-5(!
">h!B"F"%J8
 /„dnKL
"*#A*[b‡R u€4%A!+"*2D H,(S
T882#CN%€(8W#CRuA!+ %M,;N
K2#CN%€ j8iA-"++B-&A02#C N%
€ jj8OEM+,Aii*;D+JM+e(">A*L
%**…j†5,*<&,5…[†
O•?H]_Uƒ?[XOSTKLw•KLHOXq9KLS‡QUJYO…K†odnKLUOPKOHPHwƒKL(†„
dnKLKLJKL9dnKLp€KL9dnKLdqU…F9dnKL[PHO$
 /„dnKLdqU…F
D4%>""F;•2#A0YZ_y]b…D"#C_b
†@+*,5B•Zr_yrZb2#A08'2#C4<*(
"%JD!R[b8bbb\r,2F
"* #Y ""+,8 ;2#C4/5,*-;
4I€"•B-,**;€ 4#4,e+C5"L
HD ]^b8$(#2#CA52!4-‚bb[ybb^8X,e+5-2H
[y\5r8P#"*2#C5,*(2;4&*,0+"F8
 /„dnKLp€KL
'2OD4%>"*;>N"F;•8P#2#C
4?5,*- "5,2HY4#F"F*# ‰2O8-
4#2HFT5-M+(%8 @+*!(

M+5<Y[ay\c8 -4"*5! (5,*A*
bar+YZy[8
P#"*2#C "5,*(0+"F8 ;2#CO+€>
D*;DL0+4#8.B R M+2OR5,*A*]^y]c‡D
4B04IT4x<;8
 /„dnKLKLJKL
'+D>N"F;•ŠBN+@"H5,@4,
A!T‹5,@ 2]8"*#2H*
#+Y22-5,2#C4?(!">J*5
-4"*5<!(+A!2#C5#Ce(]br8+
D-;€2#"*2#C5,*(€-8
 /„dnKL[PHO
W*%,D A-+_Z*;-%*,T22H2H
4Y4%"-+4% 4*2D,e( ">"+4x4,
;FL"#C5@0+"#*;dF"F<H5,*(-"0T
 _q„KK`Q
d#2#CN4L2((%R…€4%%"*;T†8
"*J # e(">d# 2#C4L2A(R
,2;<&8Œ2+ #(,,DA*,*,(
%T~"*+8
9(">d2#CIB•(L(&A0T5,*+T(
&A0 ,K A405(%;8)A-#C"FM+C&A05,;
TA-#C"FM+#;K*&A0dF@;8
 PHwƒKL†„d{H
W&,e(">,%#!e+5B&•((%;
(A*L5,++5 "+ AT#8) e,+e("> &#K
DR#C-5@;5JD+&5,&8
B&D€4%R*;4%%#T(+S88"*2D(2#C
4L"H"3 R4*(,"•%DŽ5,BR&A(+*8 D4<
@*%5B&%*,@2+*Be+&8

'&D(4L((R€"%(A0#T•(*
#2e+5B&!">,M*H-*%#!
B8
$&##+D4L@*%&A(+ h &D
2#C*%*@(A(+o
*2;0#&(2*%5,&FL
*4%M+e(">#,2;5,&"*
*(R"*e(">&#&A!…(Rbbc^1+†&(I
…YbyZ^1+†+&4#(RM•M+HRT8
.9'1:;:*</&$<=
"* (B-J#!RA! #4L(h
&(R+*,4<(&55B&4%%8BI+&5B&<
H5,**%#5,2@AB2h+#8
6$ $6OSbKLYOPYOzJO{H2zJdl(
`#(D+ &4L( OD+&2J#(! 
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2HBM+(%A*EF,E-5+%5,BeA40E
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*
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o
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A*L"+ADAE5,BeA*L"€F"RR8
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2A*L:EF8
 S‡KLpv|O_]qUIvK
-2HAR"H-R,Y++8)*RA*L
5,*#AR+5>IMM+M+RA*L"*#5,-2H>

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 QE_dSyKLHO]U|•?UG
W@#CD+R#€"I2BeA*L8P#C*+R0
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W#Cq!5, q2#C4L"*e(">A*L5#Ce((
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…is
]
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"F2/8
L 
Hàm lượng cặn của nước
nguồn (mg/l)
Lượng phèn Al
2
(SO
4
)
3
(mg/l)

Đến 100
100 – 200
200 – 400
400 – 600
600 – 800
800 – 1000
1000 – 1400
1400 – 1800
1800 – 2200
15 – 25
18 – 30
24 – 40
28 – 45
33 – 55
36 – 60
39 – 65
45 – 75
48 – 80
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 OQmU†•HO?a_PUI‚KO|O_]qUIvK(
 O_]qUIvKUOrqd•Ho4I+5,*4"-A!DhA0…4x5
,†
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"H•(
'"H5(E
 IvK|O\K‘K(4<A0m2"HA02#C2#+ 5,*e+-A(,
A0dF;(*"H48
 IvKHb|O\((*"H"+4*(ARe+€-2H+*8 D@*%
(AR#+5h(/8
6$ $ PHYOSbKLYOPY^cdl)QKOO{H(

`#( 0&,4LAE-*%2H M+552 
Š(RuND"*#8 ( 554L(CRN
5,H-A*(R,/44#75,%*E#C8"*e(">4
4#76(R44#724I,*"#€5,5>
A-M+62#CEF89(">G(RN5
5&,e(">**(*(8 `# (J&DIB"*
2@ABA0…5ID;M+*†*;"*2@ABAˆA0…A!D*†8
`#(J&DO4L2,%*,*,(*%#
O+RN*,+*;(T8X*5#(,#2#C(
4L+A*%T(*%%R!"+AT# 8
6$ $PHOSbKLOPYclsK
 8PHUSfKOS’KL)?KLHOnKIPH9dSTQHOnKIPHHzUO„^cdl†‰KLOJQHPHO(
*•,5,52*R*;M+AYJ8
1H-,(D3J"F8
'<;Y2Cj5,jjo4<2,D2R"/5,4<2+R;
•8)4L,DJA*%;2O*m8
 OSbKLYOPY^cdlOQm_|O\†xKHu“K(
'<Y@j5+jj2#C*5,MA08P#+dA0*;
AR"H"*(,+2D<2#C+<8
 OSbKLYOPYHˆpu“H†xK†‰KLUI?“KLd•HOJqU_qo”KKˆ”Q(
 OSbKLYOPYUI?“KLd•H(
X4h<2#C2#+5,*;K*"&I 5,#+K
(;"+Y2(8
 OSbKLYOPYU_qo”KKˆ”Q(
dA05,*„C<;€(R+*+2D(R,-2(
R>#M+A! A0A0K%*"+ N& T40(5,*(%
*;,Š"&M+6T25,2HF0+"FdF;#8
 OSbKLYOPYdXF|Oˆ†xKHu“K(
W,A-#C58
;A!4x2*R*;24N4L8

p#C#!xD"+!x#8
cwGKLHPHYOSbKLYOPY)J_(
`#(<
1(&<A!
1(&mE
`#(m<8
!
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