 |
Jerry M. Brownstein
President & CEO
Phone:
(425) 392.3848
Fax:
(425) 392.0222
Email:
jbxextex@comcast.net
|
X-TEX
Sorbent’s Impact on the Environment
Introduction
-
Sorbents
used in the environment should be environmentally benign. A standard
test of potential environmental harm is the Toxicity Characteristics
Leachate Procedure (TCLP test), which measures the concentration of
chemicals of concern released into the environment from solid
substances.
Method
- X-TEX
sorbent material was submitted to an analytical laboratory with
NELAP (National Environmental Laboratory Accreditation Program)
accreditation for the full suite of TCLP analyzes. The results of
the tests are summarized below.
Results-
Volatile
Organic Compounds / EPA Method 1311 / 8260B
Parameter
|
Result
|
Detection
Limit
|
Units
|
Maximum
Contaminant Level
|
|
Vinyl
Chloride
|
ND
|
0.2
|
mg/L
|
0.2
|
|
1,1-Dichloroethene
|
ND
|
0.2
|
mg/L
|
0.7
|
|
2-Butanone
|
ND
|
1
|
mg/L
|
200
|
|
Chloroform
|
ND
|
0.2
|
mg/L
|
6.0
|
|
Carbon
Tetrachloride
|
ND
|
0.2
|
mg/L
|
0.5
|
|
Benzene
|
ND
|
0.2
|
mg/L
|
0.5
|
|
1,2-Dichloroethane
|
ND
|
0.2
|
mg/L
|
0.5
|
|
Trichloroethene
|
ND
|
0.2
|
mg/L
|
0.5
|
|
Tetrachloroethene
|
ND
|
0.2
|
mg/L
|
0.7
|
|
Chlorobenzene
|
ND
|
0.2
|
mg/L
|
100
|
RCRA
Metals / EPA Method 1311 / 6010
/ 7470
Parameter
|
Result
|
Detection
Limit
|
Units
|
Maximum
Contaminant Level
|
|
Arsenic
|
ND
|
0.2
|
mg/L
|
5.0
|
|
Barium
|
0.25
|
0.005
|
mg/L
|
100
|
|
Cadmium
|
ND
|
0.05
|
mg/L
|
1.0
|
|
Chromium
|
ND
|
0.01
|
mg/L
|
5.0
|
|
Lead
|
ND
|
0.1
|
mg/L
|
5.0
|
|
Selenium
|
ND
|
0.5
|
mg/L
|
1.0
|
|
Silver
|
ND
|
0.2
|
mg/L
|
5.0
|
|
Mercury
|
ND
|
0.002
|
mg/L
|
0.2
|
Chlorinated
Pesticides / EPA Method 1311 / 8081
Parameter
|
Result
|
Detection
Limit
|
Units
|
Maximum
Contaminant Level
|
|
gamma-BHC
(Lindane)
|
ND
|
0.001
|
mg/L
|
0.4
|
|
Heptachlor
|
ND
|
0.001
|
mg/L
|
0.008
|
|
Heptachlor
epoxide
|
ND
|
0.001
|
mg/L
|
0.008
|
|
Endrin
|
ND
|
0.002
|
mg/L
|
0.02
|
|
Methoxychlor
|
ND
|
0.01
|
mg/L
|
10
|
|
Chlordane
(technical)
|
ND
|
0.01
|
mg/L
|
0.03
|
|
Toxaphene
|
ND
|
0.1
|
mg/L
|
0.5
|
Chlorinated
Herbicides / EPA Method 1311 / 8151
Parameter
|
Result
|
Detection
Limit
|
Units
|
Maximum
Contaminant Level
|
|
2,4-D
|
ND
|
0.001
|
mg/L
|
10
|
|
Silvex
(2,4,5-TP)
|
ND
|
0.001
|
mg/L
|
1.0
|
Semivolatile
Organic Compounds / EPA Method 1311 / 8270C
Parameter
|
Result
|
Detection
Limit
|
Units
|
Maximum
Contaminant Level
|
|
1,4-Dichlorobenzene
|
ND
|
0.005
|
mg/L
|
7.5
|
|
2-Methylphenol
|
ND
|
0.005
|
mg/L
|
200
|
|
3-
& 4-Methylphenol
|
ND
|
0.005
|
mg/L
|
200
|
|
Hexachloroethane
|
ND
|
0.005
|
mg/L
|
3.0
|
|
Nitrobenzene
|
ND
|
0.005
|
mg/L
|
2.0
|
|
Hexachlorobutadiene
|
ND
|
0.005
|
mg/L
|
0.5
|
|
2,4,6-Trichlorophenol
|
ND
|
0.005
|
mg/L
|
2.0
|
|
2,4,5-Trichlorophenol
|
ND
|
0.005
|
mg/L
|
400
|
|
2,4-Dinitrotoluene
|
ND
|
0.005
|
mg/L
|
0.13
|
|
Hexachlorobenzene
|
ND
|
0.005
|
mg/L
|
0.13
|
|
Pentachlorophenol
|
ND
|
0.005
|
mg/L
|
100
|
|
Pyridine
|
ND
|
0.005
|
mg/L
|
5.0
|
Conclusions -
All
parameters were well below the limits required by the test, showing
that the Xextex sorbent material does not contribute to pollution of
the environment.
Residual
Ash and Heating Value - Samples
of the X-TEX
sorbent material were tested to determine the residue and the
heating value. The ash was determined to 0.65% by ASTM method D482
and the heating value was determined to be 7600 BTU/lb by ASTM
method D240.
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