Preparation and characterizations of activated carbon from banana fruit bunch with chemical treatments using hydrothermal processes

Performance and dynamic modeling of a continuously operated pomace olive packed bed for olive mill wastewater treatment and phenol recovery

“…A2 b), the band at approximately 3308 cm −1 corresponds to the hydroxyl group (-OH group). The stretching vibration of the carbonyl (-C=O) group appears at 1590 cm -1 ; the symmetrical stretching vibration of -CH2-is located at 1402 cm −1 (Allwar et al, 2020).…”

Optimization of preparation conditions of a novel low-cost natural bio-sorbent from olive pomace and column adsorption processes on the removal of phenolic compounds from olive oil mill wastewater

“…The FTIR spectrum of bio-sorbent (Fig.2b) at 3416 cm −1 corresponds to the -OH of hydroxyl functional groups. The peak at 1628 cm −1 is attributed to the stretching vibration of carboxylic groups -C=O (Martín-Lara et al 2008), the bond at 1380 cm −1 is attributed to the symmetrical stretching vibration CH 2(Allwar et al 2020). The peak at 1033 cm −1 can be attributed to the bending vibration of the -OH group(Nasrullah et al 2018).…”