Dose-response analysis of toxic effect from palm oil mill effluent (POME) by-products on biohydrogen producing bacteria – A preliminary study on microbial density and determination of EC50

Arisht, Shalini Narayanan; Abdul, Peer Mohamed; Jasni, Jannatulhawa; Yasin, Nazlina Haiza Mohd; Lin, Sheng-Kai; Wu, Shu-Yii; Takriff, Mohd Sobri; Jahim, Jamaliah Md

doi:10.1016/j.ecoenv.2020.110991

Cited by 11 publications

(5 citation statements)

References 49 publications

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“…POME is a mixture of both organic (acetic, propionic, butyric, and formic acid) and inorganic (heavy metals including copper, arsenic, iron, lead, etc.) components. , Hashiguchi et al investigated the effects of POME on Danio rerio (Zebrafish) embryos and observed several embryo malformations such as yolk sac edema (fluid in yolk sac) as well as eye and mandibular malformations. While POME is a mixture and not classified under the term “EC”, its potential ecotoxic properties share several similarities of compounds under the EC definition.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of Emerging Contaminants in Southeast Asian Environments: Present Status, Challenges, and Future Prospects

2022

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The status of emerging contaminant (EC) profiles in Southeast Asia is currently unclear and often overshadowed by studies conducted in developed regions such as North America, Europe, and Asia. EC research in Southeast Asia is especially critical due to its high population density and poor sanitation infrastructure that introduce large amounts of ECs into the aquatic environment. This literature Review investigated the status of EC research in 11 Southeast Asian countries. Key pharmaceutical groups such as antibiotics (sulfamethoxazole, trimethoprim, sulfamethazine, ciprofloxacin, and lincomycin) and nonsteroidal anti-inflammatory drugs (NSAIDs) (diclofenac, acetaminophen, and ibuprofen) were among the most frequently studied group of ECs, while other significant groups of interests in this Review included per-and polyfluoroalkyl substances (PFAS) and phthalate esters (PAEs). With most Southeast Asian countries having agrarian economies and the onset of climate change, the overutilization of antibiotics and pesticides to meet the commercial demand for agriculture and livestock products is a major threat to aquatic environments and even human health in this region. This Review identifies understudied emerging contaminant groups in Southeast Asia such as disinfectants and transformation byproducts and recommends future research directions for Southeast Asia, particularly focusing on seasonal trends of EC input into surface and groundwater environments.

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Section: Discussionmentioning

confidence: 99%

Occurrence of Emerging Contaminants in Southeast Asian Environments: Present Status, Challenges, and Future Prospects

2022

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“…The sample used for this experiment was the palm oil−water mixture model, which consists of a mixture of 6000 mg of CPO per liter of water. This value was chosen based on literature 23 and equipment limitation. Palm oil was gathered from the bulk storage tank (BST) of FELCRA Nasaruddin Belia Berhad, Bota Kanan, Perak.…”

Section: Methodsmentioning

confidence: 99%

Optimization of Progressive Freezing for Residual Oil Recovery from a Palm Oil–Water Mixture (POME Model)

2021

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Oil and grease remain the dominant contaminants in the palm oil mill effluent (POME) despite the conventional treatment of POME. The removal of residual oil from palm oil−water mixture (POME model) using the progressive freezing process was investigated. An optimization technique called response surface methodology (RSM) with the design of rotatable central composite design was applied to figure out the optimum experimental variables generated by Design−Expert software (version 6.0.4. Stat-Ease, trial version). Besides, RSM also helps to investigate the interactive effects among the independent variables compared to one factor at a time. The variables involved are coolant temperature, X A (4−12 °C), freezing time, X B (20−60 min), and circulation flow, X C (200−600 rpm). The statistical analysis showed that a two-factor interaction model was developed using the obtained experimental data with a coefficient of determination (R 2 ) value of 0.9582. From the RSM-generated model, the optimum conditions for extraction of oil from the POME model were a coolant temperature of 6 °C in 50 min freezing time with a circulation flowrate of 500 rpm. The validation of the model showed that the predicted oil yield and experimental oil yield were 92.56 and 93.20%, respectively.

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“…The production continued to rise by 22% in 2020, exceeding 72 million MT. 3,4 Almost 85% of palm oil output is generated in only two nations, with Indonesia producing 46.8 million MT or 58% of world supply, while Malaysia produced 20.9 million MT or 26%. 5 As the industry expands rapidly, palm oil production goes hand in hand with its biomass generation.…”

Section: Introductionmentioning

confidence: 99%

Emerging technologies for value-added use of oil palm biomass

Norrrahim

Farid

Lawal

et al. 2022

Environ. Sci.: Adv.

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Dose-response analysis of toxic effect from palm oil mill effluent (POME) by-products on biohydrogen producing bacteria – A preliminary study on microbial density and determination of EC50

Cited by 11 publications

References 49 publications

Occurrence of Emerging Contaminants in Southeast Asian Environments: Present Status, Challenges, and Future Prospects

Occurrence of Emerging Contaminants in Southeast Asian Environments: Present Status, Challenges, and Future Prospects

Optimization of Progressive Freezing for Residual Oil Recovery from a Palm Oil–Water Mixture (POME Model)

Emerging technologies for value-added use of oil palm biomass

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