Definitions of Terms Used in Wastewater Equations

Main Terms AMR = Actual mass removal of Table 8 and/or Table 9 compounds achieved by treatment process or a series of treatment processes, kg/hr. C = Concentration of Table 8 and/or Table 9 compounds in wastewater, ppmw. CG = Concentration of TOC (minus methane and ethane) or total organic hazardous air pollutants, in vented gas stream, dry basis, ppmv. CG c = Concentration of TOC or organic hazardous air pollutants corrected to 3-percent oxygen, in vented gas stream, dry basis, ppmv. CGS = Concentration of sample compounds in vented gas stream, dry basis, ppmv. E = Removal or destruction efficiency, percent. F bio = Site-specific fraction of Table 8 and/or Table 9 compounds biodegraded, unitless. f bio = Site-specific fraction of an individual Table 8 or Table 9 compound biodegraded, unitless. Fm = Compound-specific fraction measured factor, unitless (listed in table 34). Fr = Fraction removal value for Table 8 and/or Table 9 compounds, unitless (listed in Table 9). Fr avg = Flow-weighted average of the Fr values. i = Identifier for a compound. j = Identifier for a sample. k = Identifier for a run. K 2 = Constant, 41.57 * 10 −9 , (ppm) −1 (gram-mole per standard m 3 ) (kg/g), where standard temperature (gram-mole per standard m 3 ) is 20 °C. m = Number of samples. M = Mass, kg. MW = Molecular weight, kg/kg-mole. n = Number of compounds. p = Number of runs. %O 2d = Concentration of oxygen, dry basis, percent by volume. Q = Volumetric flowrate of wastewater, m 3 /hr. QG = Volumetric flow rate of vented gas stream, dry standard, m 3 /min. QMG = Mass flowrate of TOC (minus methane and ethane) or organic hazardous air pollutants, in vented gas stream, kg/hr. QMW = Mass flowrate of Table 8 and/or Table 9 compounds in wastewater, kg/hr. ρ = Density, kg/m 3 . RMR = Required mass removal achieved by treatment process or a series of treatment processes, kg/hr. t T = Total time of all runs, hr. Subscripts a = Entering. b = Exiting. i = Identifier for a compound. j = Identifier for a sample. k = Identifier for a run. m = Number of samples. n = Number of compounds. p = Number of runs. T = Total; sum of individual. [59 FR 19468, Apr. 22, 1994, as amended at 59 FR 29201, June 6, 1994; 61 FR 63629, Dec. 12, 1995; 62 FR 2779, Jan. 17, 1997; 63 FR 67793, Dec. 9, 1998; 64 FR 20195, Apr. 26, 1999; 65 FR 78284, Dec. 14, 2000; 66 FR 6935, Jan. 22, 2001]