Microalgae cultivation using palm oil mill effluent as growth medium for lipid production with the effect of CO(2)supply and light intensity

Malaysia is one of the world's largest palm oil producers and exporters, which generates several million tons of palm oil mill effluent (POME). POME is discharged into the water sources and considered as a major environmental pollutants in Malaysia. Alternatively, POME also contains some nutrie...

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Veröffentlicht in:Biomass conversion and biorefinery 2021-10, Vol.11 (5), p.1555-1563
Hauptverfasser: Bhuyar, Prakash, Sundararaju, Sathyavathi, Ab Rahim, Mohd Hasbi, Ramaraj, Rameshprabu, Maniam, Gaanty Pragas, Govindan, Natanamurugaraj
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container_end_page 1563
container_issue 5
container_start_page 1555
container_title Biomass conversion and biorefinery
container_volume 11
creator Bhuyar, Prakash
Sundararaju, Sathyavathi
Ab Rahim, Mohd Hasbi
Ramaraj, Rameshprabu
Maniam, Gaanty Pragas
Govindan, Natanamurugaraj
description Malaysia is one of the world's largest palm oil producers and exporters, which generates several million tons of palm oil mill effluent (POME). POME is discharged into the water sources and considered as a major environmental pollutants in Malaysia. Alternatively, POME also contains some nutrients and several minerals, thereby POME could prove as a suitable medium for microbial-based applications, such as wastewater treatment and biofuel production. Different techniques have been employed to effectively utilize the POME at point of generation. One of the alternatives is the cultivation of microalgae in the enriched medium of POME. The present study used POME as growth medium for cultivation ofChlorellasp. and determines the effect of light intensity (ranging from 900 to 12,000 lux) and different CO(2)concentrations (ranging from 5% (v/v) to 20% (v/v)) by both experimentally and design expert methods. The results revealed that biomass yield was considerably increased by increasing the CO(2)concentration and further improved in the photoautotrophic conditions. The optimum value of 10.9% (v/v) CO(2)concentration and 9963.8 lux of light intensity was found to capture maximum CO(2)and biomass production. The result obtained from optimization of the microalgal growth under various CO(2)concentration, light intensity, their interaction effects, and the squared CO(2)concentration suitable for microalgal lipid production under suitable light and CO(2)supply. This study suggests that the nutrient sources present in POME could be potentially used to capture the carbon or CO(2)and reduce the economic impact of carbon emissions. In addition, enhanced biomass yield will increase the yield for biodiesel production byChlorellasp.
doi_str_mv 10.1007/s13399-019-00548-5
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subjects Energy & Fuels
Engineering
Engineering, Chemical
Science & Technology
Technology
title Microalgae cultivation using palm oil mill effluent as growth medium for lipid production with the effect of CO(2)supply and light intensity
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