Current palm oil mill odour emission scenario against proposed Department of Environment (DOE) requirement

Yap, Andrew Kian Chung and Rohaya Mohamed Halim, . and Fatah Yah Abd Manaf, . and Nu’man Abdul Hadi, . and Astimar Abdul Aziz, . (2019) Current palm oil mill odour emission scenario against proposed Department of Environment (DOE) requirement. Palm Oil Engineering Bulletin (133). pp. 13-23. ISSN 1511-9734

Text Palm Oil Engineering Bulletin No.133 (Oct - Dec 2019) p13-23.pdf Restricted to Repository staff only Download (330kB)

Abstract

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 OUmˉ³ for Malaysian palm oil mills recently which was found unachievable during previous survey. The objective of this article is to establish the odour concentration (OUmˉ³ ) 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 OUmˉ³ most of the times although high level up to 108.4 Oumˉ³ 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.

Item Type:	Article
Creators:	Yap, Andrew Kian Chung and Rohaya Mohamed Halim, . and Fatah Yah Abd Manaf, . and Nu’man Abdul Hadi, . and Astimar Abdul Aziz, .
Title:	Current palm oil mill odour emission scenario against proposed Department of Environment (DOE) requirement
Date:	2019
Location:	Malaysian Palm Oil Board website
Publication:	Malaysian Palm Oil Board
Number:	133
Physical Description:	11p.
Additional Information:	Palm Oil Engineering Bulletin formerly known as Engineering News
Agency Name:	Universiti Putra Malaysia (UPM)
Date Deposited:	17 Nov 2025 03:10
Last Modified:	17 Nov 2025 03:10
URI:	http://myagric.upm.edu.my/id/eprint/23492

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