Batch and Continuous Flow Adsorption of Phenolic Compounds from Olive Mill Wastewater: A Comparison between Nonionic and Ion Exchange Resins

Table 4

Single-point adsorption test: pH-averaged adsorption yields relative to the 3 tested resins, with standard deviations.

Resin	VFA content (g/L)
XAD16	1.3 (no VFA addition)	77%  ±  3%	71%  ±  10%	72%  ±  1%
	10.3 (with VFA addition)	83%  ±  7%	44%  ±  14%	43%  ±  19%
IRA958 Cl	1.3 (no VFA addition)	60%  ±  5%	31%  ±  7%	43%  ±  3%
	10.3 (with VFA addition)	55%  ±  10%	38%  ±  4%	46%  ±  7%
IRA67	1.3 (no VFA addition)	33%  ±  12%	17%  ±  5%	22%  ±  2%
	10.3 (with VFA addition)	34%  ±  23%	31%  ±  11%	37%  ±  23%