Treatment of Cutting Oil-in-Water Emulsion by Combining Flocculation and Fenton Oxidation

Table 4

COD and BOD5 of the waste cutting oil after stage 1 and stage 2 treatment.

Parameter	Stage 1+ stage 2 treatment	Standard A	Standard B
COD (mg/L)	85.4	75	150
BOD5 (mg/L)	30	30	50