A Preliminary Study of Banana Stem Juice as a Plant-Based Coagulant for Treatment of Spent Coolant Wastewater

Table 1

The characteristics of MWF [2, 3, 12, 21–24] and regulatory discharge standard limits [32].

Parameters	MWF effluent (mg/L)	Regulatory standard discharge limit (mg/L)
		A	B
pH	7.06	6.0–9.0	5.5–9.0
Chemical oxygen Demand (COD)	560–68000	50	100
Suspended solid (SS)	110	50	100
Turbidity	15,350 NTU	—	—
Color	White	—	—

All values except for pH and turbidity are expressed in mg/L.