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OCR for page 63
Disposal of Activated Carbon from Chemical Agent Disposal Facilities
Appendix A
Calgon Carbon Corporation General Carbon Acceptance Criteria for Reactivation
The following tabular material provided by Calgon Carbon Corporation shows criteria for determining whether nonhazardous or RCRA-regulated granular activated carbon is suitable to accept for return for reactivation. Note the following definitions for acronyms used:
BSP Big Sandy Plant
BLP Blue Lake Plant
NIP Neville Island Plant
TEQ toxic equivalency (amount of 2,3,7,8-TCDD [2,3,7,8-tetrachlorodibenzo-p-dioxin] with toxicity equivalent to a complex mixture of 210 dioxin and furan isomers with four to nine chlorine atoms found in flue gases.)
RTM-10 Research Test Method (in-house designation for Determination of Ignitability Characteristic under RCRA for Spent Activated Carbon Test Method)
CALGON CARBON CORPORATION ACCEPTANCE CRITERIA
Criteria for Return for Reactivation of Non-Hazardous Granular Activated Carbon (GAC), which must be met:
Characteristic/Property
Limits of Acceptability
Size
Greater than or equal to 12 × 40 Mesh
pH Range
Greater than 2.0 and less than 12.5
Ignitable (per RTM-10)
Not Acceptable (Although BSP is permitted to receive D001 manifested material, they may not receive any spent carbon which exhibits the characteristic of ignitability.)
Instantaneously Ignitable (per RTM-10)
Not Acceptable
Dioxins
Not Acceptable at BSP or BLP
< 20 ug/kg TEQs at NIP
Polychlorinated Biphenyls (PCB’s)
< 50 mg/kg at NIP
Not Acceptable at BSP
1,2-Dibromo-3-chloropropane (DBCP)
Not Acceptable at Neville Island Plant or Big Sandy.
Radioactivity
Not to Exceed Background Level
Note 1: Spent Granular Activated carbon to be returned for reactivation shall be free of any foreign debris (rock, wood, metal, etc.) or extraneous impurities, free of oil and grease, easily wetted by water, and free-flowing.
Note 2: Acceptance for reactivation of spent carbon which has not been supplied by Calgon Carbon Corporation must be investigated on a case-by-case basis.
OCR for page 64
Disposal of Activated Carbon from Chemical Agent Disposal Facilities
The following are GENERAL GUIDELINES for acceptability of spent carbon for reactivation. Spent carbons which do not meet these guidelines can usually be processed using special handling and/or blending techniques. Greater than 98% of the projects submitted for reactivation acceptance are approved. However, due to the special handling required, return of these carbons may be approved with limitations as to choice of reactivation facility, method, volume and/or frequency of return.
The criteria listed below are guidelines. Because the regulations governing the operation of our reactivation facilities are complex and subject to change, Calgon Carbon Corporation must reserve the final right to reject the return of spent carbon to our facilities.
Characteristic/Property
Limits of Acceptability
Volatile Sulfur
1.0 % Maximum
Volatile Chloride
1.7 % Maximum—Neville Island
4.0 % Maximum—Big Sandy
Volatile Bromide
0.3% Maximum
Volatile Fluoride
0.4 % Maximum
High Exotherm During Reactivation
Require Case-by-Case Approval
Potassium
Maximum of 0.1 wt. %
Sodium
Maximum of 1.0 wt. %
Trace Metals
Require Case-by-Case Approval (See Metals Guidelines below)
Acutely Toxic, Odorous, or OSHA Regulated Adsorbates
Case-by-Case Approval
CALGON CARBON CORPORATION ACCEPTANCE CRITERIA
Criteria for Return for Reactivation of RCRA Regulated Granular Activated Carbon (GAC), which must be met:
Characteristic/Property
Limits of Acceptability
Size
Greater than or equal to 12 × 40 Mesh
pH Range
Greater than 2.0 and less than 12.5
Ignitable (per RTM-10)
Not Acceptable (Although BSP is permitted to receive D001 manifested material, they may not receive any spent carbon which exhibits the characteristic of ignitability.)
Instantaneously Ignitable (per RTM-10)
Not Acceptable
Dioxins
Not Acceptable at BSP or BLP
< 20 ug/kg TEQs at NIP
Polychlorinated Biphenyls (PCB’s)
< 50 mg/kg at NIP
Not Acceptable at BSP or BLP
1,2-Dibromo-3-chloropropane (DBCP)
Not Acceptable
Mercury
Not Acceptable
RCRA Waste Codes Not Acceptable
D001 (NIP), D002, D003, F020, F021, F022, F023, F026, F027, F028, F032
Reactive Cyanide > 250 mg/kg
Not Acceptable
Reactive Sulfide > 500 mg/kg
Not Acceptable
Radioactivity
Not to Exceed Background Level
Note 1: Spent Granular Activated carbon to be returned for reactivation shall be free of any foreign debris (rock, wood, metal, etc.) or extraneous impurities, free of oil and grease, easily wetted by water, and free-flowing.
Note 2: Acceptance for reactivation of spent carbon which has not been supplied by Calgon Carbon Corporation must be investigated on a case-by-case basis.
OCR for page 65
Disposal of Activated Carbon from Chemical Agent Disposal Facilities
Characteristic/Property
Limits of Acceptability
Volatile Sulfur
1.0 % Maximum
Volatile Chloride
1.7 % Maximum—Neville Island
4.0 % Maximum—Big Sandy
Volatile Bromide
0.3% Maximum
Volatile Fluoride
0.4 % Maximum
High Exotherm During Reactivation
Require Case-by-Case Approval
Potassium
Maximum of 0.1 wt. %
Sodium
Maximum of 1.0 wt. %
Trace Metals
Require Case-by-Case Approval (See metals guidelines below)
Acutely Toxic, Odorous, or OSHA Regulated Adsorbates
Case-by-Case Approval
CARBON ACCEPTANCE METALS GUIDELINES FOR NEW CARBON ACCEPTANCE PROJECTS
This table lists the metals limitations which are used to evaluate carbon acceptance projects. Spent carbons with metals concentrations above these guidelines will not be approved for reactivation whether non-hazardous or RCRA hazardous.
Metal
Concentration, mg/kg
Antimony
< 1000
Arsenic
< 50
Beryllium
< 63.75
Barium
< 350
Cadmium
< 2.5
Total Chromium
< 200
Hexavalent Chromium
< 3.75
Copper
< 500
Iron
< 10,000
Lead
< 50
Manganese
< 5000
Nickel
< 5000
Selenium
< 200
Silver
< 200
Thallium
< 200
Zinc
< 500
Mercury
Not acceptable