ANAEROBIC DIGESTION – PALM OIL ENGINEERING BULLETIN

Current Palm Oil Mill Odour Emission Scenario against Proposed Department of Environment (DOE) Requirement

mpob_admin — Tue, 11 Aug 2020 02:17:02 +0000

Odorous gases are emitted when palm oil mill effluent is treated via anaerobic digestion. Although odour is a nuisance rather than hazardous most of the times, sensory annoyance complaints provoked local authority to seek feasible mitigation. The Department of Environment (DOE) under the jurisdiction of the Air Division has proposed an odour emission limit of 12 000 OUm-3 for Malaysian palm oil mills recently which was found unachievable during previous survey. The objective of this article is to establish the odour concentration (OUm-3) at residential locations close to a palm oil mill and identify ammonia (NH3) and hydrogen sulphide (H2S) gas concentration in odour samples collected from anaerobic ponds. The odour sampling and assessment were performed according to MS 1963:2007 Air Quality – determination of odour concentration by dynamic olfactometry with enhanced VDI3940 Grid Method. Experimental results showed that odour concentrations at residential locations are often dominated by local odour sources such as chicken farms. Odour emission levels at all surveyed residential areas identified as palm oil mills origin were well below 10 OUm-3 most of the times although high level up to 108.4 OUm-3 were observed occasionally due to wind factor. H2S content ranges from 15.9 ppm to 103.9 ppm and NH3 content ranges from 4.1 ppm to 16.6 ppm.

Effluent treatment system in palm oil mills: part II – biogas from anaerobic digestion

mpob_admin — Sun, 29 Mar 2020 17:13:58 +0000

This article may play an important role in polishing the mind of researchers in the palm oil mill sector Amidst the fascination of Mongana Report, still maintain it popularity and recognition by the mill engineers as well as researchers in the palm oil industry, I believe that treatment of palm oil mill effluent (POME) is also getting increased attention. Besides that, in recent times methane gas generated by POME also has come to the limelight as a very promising source of energy and income from the generation of renewable energy.

Effluent treatment systems in palm oil mills: part 1 – anaerobic digestion

mpob_admin — Sun, 29 Mar 2020 17:13:58 +0000

This article is intended to refresh the memory of millers who, over a period of time might have lost sight of fundamentals in the efﬂuent treatment sys-tem practiced in most mills. Some of the readers who have already acquired deeper knowledge of the subject may skip this topic or use this as a reference material.