Separation of oil and carotenes from palm oil mill effluent by adsorption chromatography with silica based adsorbent
Malaysia is an agricultural country and the major polluting industrial effluents have been from palm oil industry. Palm oil mill effluent (POME) is a liquid waste which causes a significant impact on the environment if it is not dealt properly. POME contains oil and carotenes that need to be treated before discharge. Owing to the readily available source of POME and growing demand of carotenes, this paper aims to recover the carotenes from POME whilst tackling the environmental problem. In this study, solvent extraction is used to retrieve oil from POME and adsorption chromatography is further adopted to recover the carotenes contained in the oil. Residual oil extracted from POME in this study was about 5000 mg/L in a single stage solvent extraction. The carotene content in recovered oil was about 400 ppm. Synthetic adsorbent with silica based material was used in the adsorption chromatography. Carotene was concentrated to about 25 times of the concentration in the recovered oil by adsorption chromatography. Carotene recovery was found to depend on the process conditions. Different types of solvent, column temperatures and initial loading volumes were evaluated to determine the effects on the percentage of carotene extracted and carotene concentration. The suitable temperature for adsorption process was 40 ℃. The major components of recovered oil from POME were similar to those of the crude palm oil, which contained mainly α -carotene and β -carotene.Carotene was successfully concentrated from the recovered oil by adsorptionchromatography process.
palm oil mill effluent carotene adsorption chromatography adsorbent
A. L. AHMAD C. Y. CHAN S. R. ABD SHUKOR M. D. MASHITAH A.R. SUNARTI
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia.
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）