Recovery of oil from palm oil mill effluent using polypropylene micro/nanofiber

JOURNAL OF HAZARDOUS MATERIALS

卷:404

Article

Semilin, Veroneka¹  Janaun, Jidon^1,4  Chung, Chin Hing^1,5  Touhami, Dalila²  Haywood, Stephanie K.²  Chong, Khim Phin⁴  Yaser, Abu Zahrim^1,4  Zein, Sharif H.³ 

[1] Univ Malaysia Sabah, Fac Engn, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia

[2] Univ Hull, Sch Engn, Fac Sci & Engn, Cottingham Rd, Kingston Upon Hull HU6 7RX, N Humberside, England

[3] Univ Hull, Dept Chem Engn, Fac Sci & Engn, Cottingham Rd, Kingston Upon Hull HU6 7RX, N Humberside, England

[4] Univ Malaysia Sabah, Sustainable Palm Oil Res Unit SPOR, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia

[5] Biosain Technol Sdn Bhd, Block 11,Lot 94,Ground Floor,Prima Sq,Batu 4, Sandakan 90701, Sabah, Malaysia

关键词: Hydrophobic;    Oil recovery;    Oleophilic;    Micro/Nanofiber;    POME;    Polypropylene;   

DOI  :  10.1016/j.jhazmat.2020.124144

来源: Elsevier

【 摘 要 】

Residual palm oil that goes into the river untreated can become detrimental to the environment. Residual oil discharge during milling process into palm oil mill effluent (POME) is unavoidable. About 1 wt% of residual oil in POME causes major problems to the mills, in terms of environment, wastewater treatment and economy losses. This paper reports the recovery of residual oil from POME by adsorption on polypropylene micro/nanofiber (PP-MNF) and desorption of oil by hands pressing, and oil extraction from the PP-MNF using solvent and super-critical-CO2 extraction techniques. The characterization of the PP-MNF and the quality of oil extracted were analyzed using analytical instruments. The reusability of the PP-MNF was also investigated. The experimental results showed the adsorption capacity of the PP-MNF was 28.65 g of oil/g of PP-MNF on average using refined palm oil, whilst recovery of oil from POME was 10.93 g of oil/g of PP-MNF. The extraction yield of oil from PP-MNF using hand pressing was 89.62%. The extraction of residual oil from the pressed PP-MNF showed comparable yield between solvent and supercritical CO2 techniques. The quality of recovered oil was similar with the quality of the crude oil, and no trace of polypropylene contamination was detected in the oil recovered. The PP-MNF showed no significant physical change after the extraction process. In conclusion, the PP-MNF has great potential to be used commercially in residual oil recovery from POME.

【 授权许可】

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