7/30/2019 l10 Adsor Ion Ex
1/22
7/30/2019 l10 Adsor Ion Ex
2/22
Source: NIOSH, 2003. Guidance for Filtration and Air-Cleaning Systems to Protect Building Environments from Airborne
Chemical, Biological, or Radiological Attacks. DHHS (NIOSH) Pub No. 2003-136. National Institute for Occupational Safety
and Health, Centers for Disease Control, Cincinnati, Ohio. April 2003. http://www.cdc.gov/niosh/docs/2003-136/2003-
136c.html. Accessed February 21, 2006.
7/30/2019 l10 Adsor Ion Ex
3/22
Figure by MIT OCW.
Adapted from Culp, G.L., and R.L. Culp. New Concepts in Water Purification. New
York, NY: Van Nostrand Reinhold Co. 1974
7/30/2019 l10 Adsor Ion Ex
4/22
7/30/2019 l10 Adsor Ion Ex
5/22
7/30/2019 l10 Adsor Ion Ex
6/22
7/30/2019 l10 Adsor Ion Ex
7/22
7/30/2019 l10 Adsor Ion Ex
8/22
7/30/2019 l10 Adsor Ion Ex
9/22
7/30/2019 l10 Adsor Ion Ex
10/22
7/30/2019 l10 Adsor Ion Ex
11/22
GAC Tank
ource: Metcalf & Eddy Inc.
Wastewater Engineering: Treatment,
isposal, Reuse. McGraw-Hill, New
ork, 1979.
2to3m
Neva clog
screen
4to5m
Surface wash
Carbon bed surface
25 mm
sampling taps
Carbon discharge
Carbon chargeWash
water
Effluent
Influent
Backwash
Backwash
Bolt ring
Full open cover
with porthole
1 to 2 m
}
gure by MIT OCW.
7/30/2019 l10 Adsor Ion Ex
12/22
Granular activated carbon tanks at MMR
Source: MMR, undated. Extraction, treatment and reinjection. Air Force Center for Environmental Excellence, Installation
Restoration Program, Massachusetts Military Reservation. http://www.mmr.org/community/guide/extraction.htm. Accessed
March 7, 2004.
7/30/2019 l10 Adsor Ion Ex
13/22
GAC Breakthrough
Cb
Volume of Water Treated, V
Typical Breakthrough Curve for Activated Carbon
EffluentSoluteConcentration
Cl
Ci C2 Cb
Py
Vb
Exhaustion
Vx
<
Source: Metcalf & Eddy Inc.
Wastewater Engineering: Treatment,
Disposal, Reuse. McGraw-Hill, New
York, 1979.
Figure by MIT OCW.
7/30/2019 l10 Adsor Ion Ex
14/22
7/30/2019 l10 Adsor Ion Ex
15/22
7/30/2019 l10 Adsor Ion Ex
16/22
7/30/2019 l10 Adsor Ion Ex
17/22
7/30/2019 l10 Adsor Ion Ex
18/22
7/30/2019 l10 Adsor Ion Ex
19/22
7/30/2019 l10 Adsor Ion Ex
20/22
0 2 4 6 8 10 12 14
pH
-1.00
-0.50
0.00
0.50
1.00
1.40
FeOH2+
Fe(OH)2+
Fe(OH)3(s)
FeCO3(s)
Fe3+
Fe2+EH,v
-7M
or 5.6 42-, CO2 3
- oC, and Pressure of 1 atm.
Water Oxidized
Water Reduced
Forms of Iron in Water as Function of Redox Potential Versus pH Constructed with Total Iron Activity 10
g/L, 96 mg/L SO Species at 1000 mg/L HCO , Temperature at 25
Figure by MIT OCW.Adapted from: MWH, J. C. Crittenden, R. R. Trussell, D. W. Hand, K. J. Howe, and G. Tchobanoglous.
Water Treatment: Principles and Design. 2nd ed. Hoboken, NJ: John Wiley & Sons, 2005, p. 1571.
7/30/2019 l10 Adsor Ion Ex
21/22
+1.2
+1.6
EH,v
WaterReduced
WaterOxidized
0 2 4 6 8 10 12 14
-1.6
-1.2
-0.8
-0.4
+0.4
+0.8
0
Mn2+
MnO4-
MnO2(s)
Mn2O3(s)
Mn3O4(s)
[Mn]total = 10-6
M Mn(OH)2(s)
Mn(s)
pH
25oC.
Forms of Manganese in Water as Function of Redox Potential Versus pH at a Water Temperature of
Figure by MIT OCW.
Adapted from: MWH, J. C. Crittenden, R. R. Trussell, D. W. Hand, K. J. Howe, and G. Tchobanoglous.
Water Treatment: Principles and Design. 2nd ed. Hoboken, NJ: John Wiley & Sons, 2005, p. 1579.
7/30/2019 l10 Adsor Ion Ex
22/22