Organic loading rate= COD of the influent stream (kg-COD/L.day)
The HRT and flow rate examine the exact influent stream from feed inlet to the outlet.
Thermal conditioning reduces solids that require further processing by solubilizing 30 to 40 percent of the volatile solids and COD in the influent stream
. Dewatering filtrate and centrate also contribute recycle loading.
The concentrations of the seventeen (17) target pharmaceuticals in the influent streams
of both WWTPs are presented in Table 6 and Table 7.
A standard EPA-accepted or approved chemical oxygen demand (COD) test is required for EPA reporting, but a more rapid and mercury-free method is available for testing influent streams
when reporting is not required.