E = (Cs * Qsd)/P
Where:
E = emission rate of particulate matter, kg/Mg of kiln raw material feed;
Cs = concentration of particulate matter, kg/dscm;
Qsd = volumetric flowrate of effluent gas, dscm/hr; and
P = total kiln raw material feed (dry basis), Mg/hr.
Ec = (Csk * Qsdk + Csb * Qsdb)/P
Where:
Ec = the combined emission rate of particulate matter from the kiln and bypass stack, kg/Mg of kiln raw material feed;
Csk = concentration of particulate matter in the kiln effluent, kg/dscm;
Qsdk = volumetric flowrate of kiln effluent gas, dscm/hr;
Csb = concentration of particulate matter in the bypass stack effluent, kg/dscm;
Qsdb = volumetric flowrate of bypass stack effluent gas, dscm/hr; and
P = total kiln raw material feed (dry basis), Mg/hr.
DRE=[1-(Wout/Win)] * 100%
Where:
Win = mass feedrate of one principal organic hazardous constituent (POHC) in a waste feedstream; and
Wout = mass emission rate of the same POHC present in exhaust emissions prior to release to the atmosphere.
Ctotal={Cmill-off * (Tmill-off/(Tmill-off + Tmill-on))} + {Cmill-on * (Tmill-on /(Tmill-off + Tmill-on))}
Where:
Ctotal = time-weighted average concentration of a regulated constituent considering both raw mill on time and off time;
Cmill-off = average performance test concentration of regulated constituent with the raw mill off-line;
Cmill-on = average performance test concentration of regulated constituent with the raw mill on-line;
Tmill-off = time when kiln gases are not routed through the raw mill; and
Tmill-on = time when kiln gases are routed through the raw mill.
Ctot = {Cmain * (Qmain /(Qmain + Qbypass))} + {Cbypass * (Qbypass / (Qmain + Qbypass))}
Where:
Ctot = gas flowrate-weighted average concentration of the regulated constituent;
Cmain = average performance test concentration demonstrated in the main stack;
Cbypass = average performance test concentration demonstrated in the bypass stack;
Qmain = volumetric flowrate of main stack effluent gas; and
Qbypass = volumetric flowrate of bypass effluent gas.
40 C.F.R. §63.1204