Abdul Karim, Mohamed Ismail and Daud, Nurul Aima and Alam, Md. Zahangir
(2011)
Treatment of palm oil mill effluent using microorganisms.
In:
Current research and development in biotechnology engineering at IIUM.
IIUM Press, Kuala Lumpur, pp. 269-275.
ISBN 9789674181444
Abstract
Palm oil mill effluent (POME) is produced in large volumes by many of the palm oil mills in
Malaysia and poses a major source of pollution. POME contains large quantities of organic
matter in the form of total solids that contribute to high biological oxygen demand (BOD) and
chemical oxygen demand (COD) in wastewater if left untreated. A study was conducted to
evaluate the potential use of Trichoderma harzianum and the mix culture of Trichoderma
harzianum and Penicillium for the treatment of POME in reducing the pollutant. Using
central composite design (CCD) experiment, each flask containmg 100 ml POME is treated
with an inoculums consisting of 3% inoculums containing 3 x 108 spores/ml and fermented
in shake flask with pH 3,6,9 and the agitation speed; 50, 150,250 rpm and incubated at 30°C
for 5 days. Sample of the POME were analyzed at 24 intervals for BOD, COD and total
suspended solids (TS).The result showed that the mix culture of Trichoderma harzianum and
Penicillium gave better reduction of COD, and TSS with a value of 87.5% and 28.9%,
respectively as compared to Trichoderma harzianum in which the value for reduction of COD
and TSS is 85.2% and 27.2%, respectively at day 5 of the treatment.
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