Table 2.

Presence of alcohols and phenolics as main degradation compounds from lignocellulosic materials at different stages during the full-scale treatment of palm oil mill effluent (POME)

Name of Compounds	MREa	MPb	HTc	CRd	ODe	FPf	APg	FDh
Alcohols
1,3-Propanediol	√	√	√	√	√	—	—	—
2,3-Butanediol	√	√	—	—	—	—	—	—
Benzyl alcohol	√	—	—	—	—	—	—	—
Phenylethyl alcohol	√	—	—	—	—	—	—	—
3-Hexanol, 4-methyl	√	√	—	—	—	—	—	—
Resorcinol	√	—	—	—	—	—	—	—
3-Pyridinol	√	—	—	—	—	—	—	—
Triethylene glycol	√	—	—	—	—	—	—	—
Phenolics
1,2-Benzenediol	√	√	√	—	—	—	—	—
Phenol, 3,4,5-trimethoxy-	√	—	—	—	—	—	—	—
Phenol, 2-methoxy-	√	—	—	—	—	—	—	—
2-Methoxy-4-vinylphenol	√	—	—	—	—	—	—	—
Phenol, 2,6-dimethoxy-	√	—	—	—	—	—	—	—
3-Pyridinol	√	—	—	—	—	—	—	—
Phenol, 4-(2-propenyl)-	√	—	—	—	—	—	—	—
Tyrosol	√	—	—	—	—	—	—	—
Homovanillic acid	√	—	—	—	—	—	—	—
Coumaran	√	—	—	—	—	—	—	—

Notes:

^amixed raw effluent,

^bmixing pond,

^cholding tank,

^dclosed reactor,

^eopen digester,

^ffacultative pond,

^galgae pond,

^hfinal discharge