Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent

In this study, we investigate cyclone microbubble (CMB) flotation for oil recovery from palm oil mill effluent (POME) under batch and continuous operations. Designed to reduce floated waste and enhance oil separation, the process was tested on a real POME from a Malaysian palm oil mill, with high t...

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Main Author: Le Van Tuan
Format: Article
Language:English
Published: HUJOS 2025-06-01
Series:Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
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Online Access:https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7763
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author Le Van Tuan
author_facet Le Van Tuan
author_sort Le Van Tuan
collection DOAJ
description In this study, we investigate cyclone microbubble (CMB) flotation for oil recovery from palm oil mill effluent (POME) under batch and continuous operations. Designed to reduce floated waste and enhance oil separation, the process was tested on a real POME from a Malaysian palm oil mill, with high temperature, low pH, and fluctuating oil and grease (O&G), total solids (TS), and chemical oxygen demand (COD) levels. For a mill processing 1,000 tons of fresh fruit bunches (FFB) daily, the POME discharge contained 7.9 tons of O&G, 36.5 tons of TS, and 59.2 tons of COD. Batch flotation achieved ~63.8% of O&G separation with a 60-minute retention time, whereas continuous flotation (flow rate > 20 L/min) showed a lower efficiency (36 ± 9%). However, O&G was enriched 3 times in the recovery tank, demonstrating an effective oil concentration. Economic analysis confirmed that energy costs were significantly lower than the value of recovered palm oil, highlighting CMB flotation’s cost-effectiveness. The findings support CMB flotation as a scalable and sustainable POME treatment method, with a potential for further efficiency improvements.
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spelling doaj-art-b6c8f2a1f0a548d090bdaaf6f2a94fd42025-08-20T03:20:44ZengHUJOSTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên1859-13882615-96782025-06-011341B10.26459/hueunijns.v134i1B.7763Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluentLe Van Tuan0Faculty of Environment, University of Sciences, Hue University, 77 Nguyen Hue St., Hue City, Vietnam In this study, we investigate cyclone microbubble (CMB) flotation for oil recovery from palm oil mill effluent (POME) under batch and continuous operations. Designed to reduce floated waste and enhance oil separation, the process was tested on a real POME from a Malaysian palm oil mill, with high temperature, low pH, and fluctuating oil and grease (O&G), total solids (TS), and chemical oxygen demand (COD) levels. For a mill processing 1,000 tons of fresh fruit bunches (FFB) daily, the POME discharge contained 7.9 tons of O&G, 36.5 tons of TS, and 59.2 tons of COD. Batch flotation achieved ~63.8% of O&G separation with a 60-minute retention time, whereas continuous flotation (flow rate > 20 L/min) showed a lower efficiency (36 ± 9%). However, O&G was enriched 3 times in the recovery tank, demonstrating an effective oil concentration. Economic analysis confirmed that energy costs were significantly lower than the value of recovered palm oil, highlighting CMB flotation’s cost-effectiveness. The findings support CMB flotation as a scalable and sustainable POME treatment method, with a potential for further efficiency improvements. https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7763cyclone microbubbleflotationoil recoveryPOME
spellingShingle Le Van Tuan
Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
cyclone microbubble
flotation
oil recovery
POME
title Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
title_full Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
title_fullStr Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
title_full_unstemmed Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
title_short Cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
title_sort cyclone microbubble flotation for enhanced oil recovery from palm oil mill effluent
topic cyclone microbubble
flotation
oil recovery
POME
url https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7763
work_keys_str_mv AT levantuan cyclonemicrobubbleflotationforenhancedoilrecoveryfrompalmoilmilleffluent