6
-/3 | ||
Zn2+ | 2.286 | |
Na+ | 12.114 | |
OH- | 11.497 | |
CN- | 2.799 | |
S2- | 0.104 |
5
, (), , , . . , .
, , , ).
1. pH=10.5-12 [5].
pH=14-pOH
pH=14-lg(11.497/1000)=14-1.928=12.072 =>
NaCl=2.799 -/3
1 NaCl=2.799*74.5*0.952*1.2=238.22=0.24/ 3
6
2. pH . pH≤6,5 [5]
1=[H+]=11,497 -/3 (pH=7)
2[H+]=10-6.5-10-7=0,000000316-0,0000001=0,000216 -/3
[Cl-]=4,1985 -/3
HCl=11.497+0.000216+2,799=14.296216 -/3
HCl=14,296216*36,5*0,33*1,2=206,6=0,2 / 3
NaCl=[CNO-]/2*3=4.1985 -/3
2 NaCl=4,1985*74,5*0,952*1,2=0,36 / 3
7
3.
Zn =2,286-0,104=2,182 -/3
4.
pH=8,0.
pH=6.5→pH=7.0→pH=8.0
1[OH-]=10-6.5-10-7=0.000216 -/3
2[OH-]=10-7-10-8=0,0000001-0,00000001=0,00001 -/3
3[OH-]= [Zn2+]=2,182-/3
[NaOH-]= 0,000216+0,00001+2,182=2,182226 -/3
NaOH=2.1822161*0.985*40*1.2=0.1 / 3
8
, -
9
pH=14-pOH=14- lg(0.033/1000)=14-4.48=9.52 => c .
HCl =0.033 -/3 (pH=7)
HCl=0.033*36,5*0,33*1,2=0,477/ 3
1
. 7
= 20,083
[2]
|
|
1.
, 3 | - | , | , | , | , | , | ., |
, /,
q- , 3/, Q/n;
Q=50/4=12,5/ ;
n=6000/1500=4;
F=1,5*2=3,02 - , 2
2
8.
8
= 10,06 3
. . = 2, = 3000, =1000
, W- 2 3.
v
Ca(OH)2, NaOH, HCl Praestol . [2] 12-7003/
3/ | , | L, |
12-700 | 0,465 | 3,13 |
15-20 . , Q=503/. 15=20 1/3 , 173. 20680-2002 [6].
4 .
, 3 | , | , |
(25/3=93) 4 3 .
, 3 | , | , |
3.5
- .
1. Ca(OH)2=1.32/3 Q=503/
Q=1,32*50/1000=66/=0,066/
Ca(OH)2 5% , , ,
0,066-5%
- 100% =1,323/ = 1320 /
2 - DMH 770-10 770 /
DMH Grundfos , , , , .
2. NaClO1=0.24/3 Q=253/
Q=0,24*25/1000=0,006 /
NaClO 1% , , ,
0,006 -1%
100% =0,6 3/=600 /
1 - DMH 770-10 770 /
3. HCl=0,2/3*25=0,005 /
|
|
Cl 5% , , ,
0,005-5%
- 100% =0,1 /=100/
- DM 115-3 115 /
4. NaClO2=0,36/3*25 =0,009/
NaClO 1% , , ,
0,009-1
- 100% =900/
1 DMH 1150-10 c 1150/
5. NaOH=0.1 /3*25=0,0025 /
NaOH 5% , , ,
0,0025 5%
=100% = 50/?
DMH 67-10 c 67 /
6. - = 0,002/*253/=0,05=50/
- DMS -8 75 /
12.4 [2]. Fe(OH)2 902-2-168 111,5 3/ 1.5 . (Q 1.5=75 3/).
2 Zn(OH)2 ZnS 902-2-19 31 3/ 1.5 .