South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-79 - Hazardous Waste Management Regulations › Part 61-79.266 - STANDARDS FOR THE MANAGEMENT OF SPECIFIC HAZARDOUS WASTES AND SPECIFIC TYPES OF HAZARDOUS WASTE MANAGEMENT FACILITIES › Appendix 61-79.266.IX - Methods Manual for Compliance With the BIF Regulations Burning Hazardous Waste in Boilers and Industrial Furnaces › Section 61-79.266.3.0 - SAMPLING AND ANALYTICAL METHODS

Current through Register Vol. 48, No. 6, June 28, 2024
3.1 Methodology for the Determination of
				  Metals Emissions in Exhaust Gases from Hazardous Waste Incineration and Similar
				  Combustion Processes
3.1.1 Applicability and
				  Principle
3.1.1.1 Applicability. This method
				  is being developed for the determination of total chromium (Cr), cadmium (Cd),
				  arsenic (As), nickel (Ni), manganese (Mn), beryllium (Be), copper (Cu), zinc
				  (Zn), lead (Pb), selenium (Se), phosphorus (P), thallium (Tl), silver (Ag),
				  antimony (Sb), barium (Ba), and mercury (Hg) stack emissions from hazardous
				  waste incinerators and similar combustion processes. This method may also be
				  used for the determination of particulate emissions following the procedures
				  and precautions described. Modifications to the sample recovery and analysis
				  procedures described in this protocol for the purpose of determining
				  particulate emissions may potentially impact the front-half mercury
				  determination. Mercury emissions should be determined using EPA method 101A
				  given in 40 CFR part 61.
3.1.1.2
				  Principle. The stack sample is withdrawn isokinetically from the source, with
				  particulate emissions collected in the probe and on a heated filter and gaseous
				  emissions collected in a series of chilled impingers containing an aqueous
				  solution of dilute nitric acid combined with dilute hydrogen peroxide in each
				  of two impingers, and acidic potassium permanganate solution in each of two
				  impingers. Sampling train components are recovered and digested in separate
				  front-and back-half fractions. Materials collected in the sampling train are
				  digested with acid solutions to dissolve organics and to remove organic
				  constituents that may create analytical interferences. Acid digestion is
				  performed using conventional Parro Bomb or microwave digestion techniques. The
				  nitric acid and hydrogen peroxide impinger solution, the acidic potassium
				  permanganate impinger solution, the HCl rinse solution, and the probe rinse and
				  digested filter solutions are analyzed for mercury by cold vapor atomic
				  absorption spectroscopy (CVAAS). The nitric acid and hydrogen peroxide solution
				  and the probe rinse and digested filter solutions of the train catches are
				  analyzed for Cr, Cd, Ni, Mn, Be, Cu, Zn, Pb, Se, P, Tl, Ag, Sb, Ba, and As by
				  inductively coupled argon plasma emission spectroscopy (ICAP) or atomic
				  absorption spectroscopy (AAS). Graphite furnace atomic absorption spectroscopy
				  (GFAAS) is used for analysis of antimony, arsenic, cadmium, lead, selenium, and
				  thallium, if these elements require greater analytical sensitivity than can be
				  obtained by ICAP. Additionally, if desired, the tester may use AAS for analyses
				  of all metals if the resulting in-stack method detection limits meet the goal
				  of the testing program. For convenience, aliquots of each digested sample
				  Fraction 1A plus Fraction 2A can be combined proportionally with respect to the
				  original Fraction 1 (normally diluted to 300 ml following digestion and prior
				  to analysis) section3.1.5.3.3; and concentrated Fraction 2A (normally diluted
				  to 150 ml following digestion and prior to analysis) section3.1.5.3.4.1 or
				  3.1.5.3.4.2 for a single analytical determination. The efficiency of the
				  analytical procedure is quantified by the analysis of spiked quality control
				  samples containing each of the target metals and/or other quality assurance
				  measures, as necessary, including actual sample matrix effects
				  checks.