Appendix A8: Heavy Metal and Trace Constituent Removals from Full

568 Pages·2010·3.67 MB·English

by  Bob Pitt

Appendix A8: Heavy Metal and Trace Constituent Removals from Full-
Scale Column Tests

This appendix contains information pertaining to the removal of heavy metals and trace
constituents from the treated stormwater by each media column during long-term, full-
depth, column tests. The following summary describes the sets of figures in this appendix.

The appendix is organized showing the removal results for the heavy metals and trace
constituents for each of the ten media combinations examined, in the following order:

Granular activated carbon (GAC)
Peat moss (P)
Rhyolite sand (R)
Site filter sand
Site zeolite (Z)
Surface modified zeolite (SMZ)
Rhyolite sand and surface modified zeolite (R-SMZ)
Rhyolite sand – surface modified zeolite – granular activated carbon (R-SMZ-GAC)
Rhyolite sand, surface modified zeolite, granular activated carbon, and peat moss (R-
SMZ-GAC-P)
Layered site filter sand, site zeolite, and granular activated carbon (layered S-Z-GAC)

Each section describes performance with the following plots and tables:

ANOVA for regression plot of influent vs. effluent concentration for each constituent
Scatterplot of influent vs. effluent concentrations, with best-fit regression line and
equation (or COV if a constant)
Line plot showing influent vs. effluent concentrations
Scatterplot but without regression line to better see actual data

In each of these sets, these analyses are presented for different heavy metals and trace
constituents:

Arsenic, total and filtered
Aluminum, total and filtered
Boron, total and filtered
Calcium, total and filtered
Cadmium, total and filtered
Copper, total and filtered
Iron, total and filtered
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Magnesium, total and filtered
Manganese, total and filtered
Nickel, total and filtered
Lead, total and filtered
Zinc, total and filtered
Potassium, total and filtered
Sodium, total and filtered
Chromium, total and filtered
Thallium, total and filtered
Antimony, total and filtered

Locations of Major Appendix A8 Sections:

GAC .................................................................................................................................... 3 
Peat Moss (P) .................................................................................................................... 60 
Rhyolite Sand (R) ........................................................................................................... 117 
Site Sand (S) ................................................................................................................... 174 
Site Zeolite ...................................................................................................................... 230 
SMZ ................................................................................................................................ 286 
R-SMZ ............................................................................................................................ 342 
R-SMZ-G ........................................................................................................................ 399 
R-SMZ-G-P..................................................................................................................... 456 
Layered SZG ................................................................................................................... 513 

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GAC

As Total

A8-3
Granular Activated Carbon (GAC)
Total Arsenic
35
30
n
atio 25
ntr 20 y = 10.5 (0.42)
ce L) 15
n g/
Co (μ 10
ent 5
u
Effl 0
0 50 100 150 200
Influent Concentration (μg/L)

Granular Activated Carbon (GAC)
Total Arsenic
200
180
L) 160
g/ 140 11-Mar
μ 18-Mar
n ( 120 25-Mar
o
ati 100 3-Apr
r 10-Apr
nt 80 22-Apr
e
nc 60 29-Apr
o 7-May
C 40
20
0
Influent Effluent

A8-4
Granular Activated Carbon (GAC)
Total Arsenic
60
11-Mar
50
n 18-Mar
o
ati 40 25-Mar
r
centL) 30 310-A-Apprr
ng/
Co(μ 20 22-Apr
nt 10 29-Apr
e
u 7-May
Effl 0
0 50 100 150 200
Influent Concentration (μg/L)

A8-5
As Dissolved

Granular Activated Carbon (GAC)
Dissolved Arsenic
35
30
n y = 17 (0.31)
atio 25
ntr 20
ce L) 15
Con (μg/ 10
ent 5
u
Effl 0
0 20 40 60 80 100 120
Influent Concentration (μg/L)

A8-6
Granular Activated Carbon (GAC)
Dissolved Arsenic
120
100
L)
g/ 11-Mar
μ 80 18-Mar
n ( 25-Mar
o
rati 60 310--AApprr
nt 22-Apr
e
c 40 29-Apr
n
o 7-May
C
20
0
Influent Effluent

Granular Activated Carbon (GAC)
Dissolved Arsenic
60
11-Mar
50
n 18-Mar
o
ati 40 25-Mar
r
centL) 30 310-A-Apprr
ng/
Co(μ 20 22-Apr
nt 10 29-Apr
e
u 7-May
Effl 0
0 20 40 60 80 100 120
Influent Concentration (μg/L)

A8-7
Al Total

Granular Activated Carbon (GAC)
Total Aluminum
400
350
n
o 300
ati 250
r
cent L) 200 y = 119 (0.97)
nt Con (μg/ 110500
e 50
u
fl 0
Ef
0 2000 4000 6000 8000 10000 12000
Influent Concentration (μg/L)

A8-8
Granular Activated Carbon (GAC)
Total Aluminum
12000
10000
L)
g/ 11-Mar
μ 8000 18-Mar
n ( 25-Mar
ratio 6000 310--AApprr
nt 22-Apr
e
c 4000 29-Apr
n
o 7-May
C
2000
0
Influent Effluent

Granular Activated Carbon (GAC)
Total Aluminum
3500
3000 11-Mar
n 18-Mar
o 2500
ati 25-Mar
ntr 2000 3-Apr
ceL)1500 10-Apr
Con(μg/1000 22-Apr
nt 29-Apr
e 500
u 7-May
Effl 0
0 2000 4000 6000 8000 10000 12000
Influent Concentration (μg/L)

A8-9
Al Dissolved

Granular Activated Carbon (GAC)
Dissolved Aluminum
60
n 50
o
ati 40
r
cent L) 30 y = 38.7 (0.30)
Con (μg/ 20
nt 10
e
u
fl 0
Ef
0 20 40 60 80 100 120 140
Influent Concentration (μg/L)

A8-10