Effect of Different Chemical Treatments on the Settleability of Palm Oil Mill Effluent

Hassan, Mohd Ali and Phang, Lai Yee and Abdul Rahman, Nor'aini and Shirai, Yoshihito and Ariff, Arbakariya and Abdul Karim, Mohamed Ismail (2001) Effect of Different Chemical Treatments on the Settleability of Palm Oil Mill Effluent. Pertanika Journal of Tropical Agricultural Science, 24 (2). pp. 79-85. ISSN 1511-3701

[img] PDF


The effect of alum and ferric chloride on the settleability of suspended solids in raw palm oil mill effluent (POME) was compared with that of natural zeolite and calcium carbonate. This work forms part of our overall research on minimal discharge technology in the overall management of POME. The results showed that all the flocculants could effectively reduce more than 80% of the suspended solids but only 40-50% of the COD. The settled volume after 3-7 hours was generally within 35-50% of the original mixture. The best settleability in increasing order were at 3 giL ferric chloride, 11 giL alum, 10 giL zeolite and 20 giL calcium carbonate. The fastest settling rate was obtained with 20 giL calcium carbonate, where settling was almost completed within 2 hours as compared to more than 20 hours for raw POME. The dosage of zeolite was comparable to the traditional coagulants. As for calcium carbonate, although the dosage was higher, subsequent disposal or utilisation of the metalfree sludge solids fits well with our minimal discharge system for POME.

Item Type:Article
Keyword:palm oil mill effluent, alum, zeolite, coagulants
Faculty or Institute:Faculty of Food Science and Technology
Publisher:Universiti Putra Malaysia Press
ID Code:3288
Deposited By: Farhana Yusof
Deposited On:25 Nov 2009 03:11
Last Modified:27 May 2013 07:07

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 25 Nov 2009 03:11.

View statistics for "Effect of Different Chemical Treatments on the Settleability of Palm Oil Mill Effluent"

Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.