Sample code | Place of collection |
S1 | Main pit |
S2 | Converging point of pits 1 and 2 |
S3 | Converging point of pits 4 and 5 |
S4 | Bleaching pit |
S5 | Converging point of pits 2 and 3 |
S6 | VAT (converging point of all coloured wastewater before treatment) |
S7 | R.O. Reject (after physical and chemical treatment) |
S8 | Sludge |
S9 | End of pipeline |