Table 1.

Water characteristics of the experiment wastewater.

Constituents	Concentration	Mean
Chemical oxygen demand (mg/L)	283–524	418
Ammonia nitrogen (mg/L)	20.8–53.2	42.5
Total nitrogen (mg/L)	61.5–91.7	71.5
Total phosphorus (mg/L)	3.0–8.7	4.8
pH	6.53–7.55	7.31