Skip to main content

Table 3 Physicochemical characterization of influent and effluent at the optimum organic loading rate

From: Methane production by treating vinasses from hydrous ethanol using a modified UASB reactor

Parameter Influent* Effluent* Removal percentage**
pH 4.51 7.22 -
COD 125600 39810 69
SO42- 5433 0 100
S- 175 275 -
NT 1377 1160 16
N-NH3 113 230 -
Norganic 1263 930 26
PO43- 147 117 21
K+ 6706 6838 -
Ethanol 19901 232 99
Acetic acid 2697 331 88
Propionic acid 3009 2283 24
Butyric acid 0 0 -
  1. * All values except pH are in mg/L.
  2. ** (−): Not applicable.