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. 2015 Mar 26;13:26. doi: 10.1186/s40201-015-0175-1

Table 2.

Operation conditions of the anoxic and oxic reactors

Anoxic zone Aerobic zone total
Volume reactor 2.5 L 2.5 L 5 L
Upflow velocity (mh−1) 1.00 1.00 1.00
Flow rate (Ld−1) 0.28 0.28 0.28
Total COD (mgL−1) 300 300 300
HRT (h) 24 24 24
pHinfluent 4-8 4-8 4-8