Influent and effluent COD were tested in triplicates using Hach® Digestion Solution for COD following procedures indicated by the manufacturer. Concentration of COD in mg/L was analyzed using Hach® DR/2010 Portable Data logging Spectrophotometer 1995; Jirka and Carter, 1975). Total suspended solids (TSS) were measured by vacuum filtering samples into pre-weighed glass microfiber filters. Samples were dried to constant weight using an oven and desiccator before final weight was measured(Eaton et al., 2005). Meanwhile, tetracycline concentration was measured using a Nanospace SI-2 Liquid Chromatograph (Shiseido Co., Japan) with a Unison C18 column (3 mm particle size and 250 mm 4.6, di- mensions) following conditions by Lee et al. (Lee et al., 2005).