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Treatment of palm oil mill effluent using evaporation and adsorption techniques

Kathiravale, Sivapalan and Ripin, Adnan (1997) Treatment of palm oil mill effluent using evaporation and adsorption techniques. In: Regional Symposium on Chemical Engineering 1997 in conjunction with 13th Symposium of Malaysian Chemical Engineers, 13-15 October 1997, Hyatt Regency, Johor, Malaysia.

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Abstract

The bench scale experiment was carried out with an aim to teat the palm oil mill effluent by utilizing it’s physical and chemical characteristics. The raw effluent has a temperature of 80 degree C to 85 degree C, thus by introducing a vacuum of 350mm Hg, the effluent will evaporate without any addition of heat. The vapour produced was then passed through a bed of adsorbent. Four different types of adsorbents were studied in this part namely activated carbon, natural zeolite and synthetic zeolite of the X and A type. The vapour, (before adsorption) when analysed showed a 99% removal of most polluting parameters monitored except for pH, COD and BOD. The effluent was able to be concentrated to as high as 25% solid content from the initial content of 3-5% solids. This will result in a recovery of 80% of the water content and also the POME volume will reduce by the same percentage. The concentrated effluent analysis showed a high content of notrogen, phosphorus and pottasium which can be used as feed material for the making of fertiliser. Next, the adsorption process results indicated that the synthetic zeolite gave a better treatment than that of natural adsorbents.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Adsorption, biological oxygen demand, chemical oxygen demand, evaporation and adsorption techniques, palm oil mill effluent, POME, vacuum evaporation
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:4636
Deposited By: Norhani Jusoh
Deposited On:11 Dec 2007 08:35
Last Modified:01 Jun 2010 03:19

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