Table 1.

Initial concentrations of the water-quality parameters chemical oxygen demand (COD), total nitrogen (TN), ammonium-nitrogen (NH₄ ⁺-N) and phosphate-phosphorus (PO₄ ³⁻-P) in the synthetic brewery wastewater (SBW)

Parameter	Concentrationa
COD	5567 ± 106
Total nitrogen	111 ± 8.2
Ammonium-nitrogen	53.0 ± 6.4
Phosphate-phosphorus (PO4 3−-P)	62.6 ± 4.1

All values are in mg L⁻¹

^aMean ± SD (standard deviation)