Table 3 HPLC analysis of raw and treated OMWW
From: Enhanced detoxification methods for the safe reuse of treated olive mill wastewater in irrigation
Compounds (mg.L−1) | Treated OMWW | |||
|---|---|---|---|---|
Raw | T1 (2.6 pH) | T2 (120 min) | T3 (500 mA cm−2) | |
Gallic acid | 302.82 | 251.01 | 64.13 | 6.62 |
Chlorogenic acid | 1967.68 | 831.77 | 54.96 | 1.57 |
Catechin | ND | 5.95 | ND | ND |
Methyl gallate | 15.98 | 65.22 | 11.80 | 1.99 |
Coffeic acid | 13.65 | 9.07 | 0.75 | 0.50 |
Syringic acid | 30.62 | 8.12 | 2.19 | 0.72 |
Pyro catechol | 150.17 | 54.07 | ND | ND |
Rutin | 18.33 | 2.08 | ND | ND |
Ellagic acid | 5.26 | 6.15 | ND | ND |
Coumaric acid | ND | 0.53 | ND | 0.03 |
Vanillin | ND | 11.77 | 5.32 | ND |
Ferulic acid | ND | 11.55 | 6.55 | 2.58 |
Naringenin | ND | ND | ND | 0.05 |
Daidzein | 4.03 | ND | 25.71 | ND |
Querectin | 195.10 | 63.36 | 1.18 | ND |
Cinnamic acid | 4.77 | 0.26 | ND | ND |
Apigenin | 4.73 | 1.32 | 0.73 | ND |
Kaempferol | ND | ND | ND | ND |
Hesperetin | 7.37 | ND | ND | ND |