Palm Oil Mill Effluent as Alternate Carbon Source for Ammonia Removal in Wastewater Treatment

Leh-Ming Loh, Yi-Wei Yan, Pui-Woon Yap, Rupinee Nadarajan, Augustine Soon-Hock Ong
2019 Sains Malaysiana  
To address high demand in searching for carbon sources alternatives in ammonia wastewater treatment, comparison among various carbon sources in term of pollutants reduction efficiency was essential to determine the most cost-effective carbon source selection for industry scale in bulk amount. This study focuses on investigating palm oil mill effluent (POME) as the alternate carbon source for supporting ammonia oxidizing bacteria (AOB) in ammonia removal of glove industrial wastewater treatment.
more » ... stewater treatment. Ammonia reduction efficiency was compared between POME with molasses, one of the most commonly used carbon sources. POME as carbon source in ammonia wastewater treatment had shown significant comparable reduction efficiency as compared to molasses. Furthermore, the study on various mixture ratios of POMEmolasses had also shown further improvement in ammonia reduction efficiency. At the optimum ratio of 50:50 (v/v) POME-molasses as carbon source mixture, the ammonia reduction in the treatment system had achieved 53.11% reduction, which reduced ammonia content down to 10.49 mg/L NH 3 . In this study, the results suggested that POME showing great potential to be the new cost-effective carbon source alternative in industry scale treatment. ABSTRAK Untuk memenuhi permintaan yang tinggi dalam mencari punca karbon alternatif dalam rawatan air sisa berammonia, perbandingan antara punca karbon daripada sudut kecekapan mengurangkan pencemaran penting untuk menentukan pemilihan punca karbon yang paling menjimatkan kos bagi skala industri dalam jumlah pukal. Kajian ini memfokus kepada penggunaan efluen kilang kelapa sawit (POME) sebagai punca karbon alternatif untuk sokongan pengoksidaan ammonia bakteria (AOB) dalam rawatan pembuangan sisa ammonia bagi industri sarung tangan. Kecekapan pengurangan ammonia dibandingkan antara POME dengan molases, salah satu punca karbon yang sering digunakan. POME sebagai punca karbon dalam rawatan air sisa ammonia telah menunjukkan kecekapan pengurangan yang ketara berbanding molases. Selain itu, kajian menggunakan pelbagai nisbah campuran molases-POME juga menunjukkan peningkatan kecekapan pengurangan ammonia. Pada nisbah optimum, 50: 50 (v/v) POME-Molases sebagai campuran punca karbon, pengurangan ammonia dalam sistem rawatan telah mencapai pengurangan 53.11%, yang mengurangkan kandungan ammonia ke 10.49 mg/L NH 3 . Dalam kajian ini, keputusan menunjukkan POME menunjukkan potensi yang tinggi untuk menjadi punca karbon alternatif dengan kos efektif dalam rawatan berskala industri. Kata kunci: Efluen kilang kelapa sawit; molases; penyingkiran ammonia; punca karbon; rawatan air sisa
doi:10.17576/jsm-2019-4804-19 fatcat:nebdcm4msbbpdgfkzektevgcv4