Conversion and characterization of Bio-Coke from abundant biomass waste in Malaysia

Baharin, Nur Syahirah Kamal; Koesoemadinata, Vidya Cundasari; Nakamura, Shunsuke; Yahya, Wira Jazair; Yuzir, Muhamad Ali Muhammad; Akhir, Fazrena Nadia Md; Othman, Norhayani; Ida, Tamio; Hara, Hirofumi

doi:10.1016/j.renene.2020.08.083

Cited by 35 publications

(10 citation statements)

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“…The apparent density of both microalgae biocokes was higher than the lignocellulosic biomass pellet, such as oil palm empty fruit bunch pellet (1.185 g/cm 3 ) [15]. Those values are comparable to the apparent density of various lignocellulosic biocokes in the range of 1.255 -1.444 g/cm 3 [15]. The result also shows that Nannochloropsis biocoke had a higher apparent density than the Chlorella biocoke.…”

Section: Resultsmentioning

confidence: 50%

“…Based on Table 1, the apparent densities of the Nannochloropsis and Chlorella biocokes were 1.22 g/cm 3 and 1.32 g/cm 3, respectively. The apparent density of both microalgae biocokes was higher than the lignocellulosic biomass pellet, such as oil palm empty fruit bunch pellet (1.185 g/cm 3 ) [15]. Those values are comparable to the apparent density of various lignocellulosic biocokes in the range of 1.255 -1.444 g/cm 3 [15].…”

Section: Resultsmentioning

confidence: 57%

“…The result also shows that Nannochloropsis biocoke had a higher apparent density than the Chlorella biocoke. High apparent density is vital for the transportation and storage of the biocoke to save space and lower the cost [15].…”

Section: Resultsmentioning

confidence: 99%

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Production of biocoke from microalgae powder

Ang

Koesoemadinata

Khudzari

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Biocoke has been invented to replace commercial coke in order to reduce the consumption of fossil fuels. However, the main target of the feedstock has been limited to plant and wood biomass, while algal biomass is rarely used. This work evaluated four microalgae species: Chlorella, Nannochloropsis, Diatoms, and Aurantiochytrium as the feedstocks to produce biocokes. The production of the biocoke was set to 100°C at 20 MPa for 6 mins 20 secs. Based on visual observation, the color of the biocokes produced was darker than the microalgae powder due to the Maillard reaction. This study suggested that the Chlorella and Nannochloropsis biocoke have the potential to produce the biocoke due to their oleaginous characteristic. Nannochloropsis had a higher apparent density than Chlorella biocoke. However, the Chlorella had a higher compression strength of 37.55MPa, compared to Nannochloropsis (27.70MPa). Meanwhile, Aurantiochythrium biocoke had an irregular shape and was sticky due to the high lipid content in the species. The Diatoms biocoke was hard but chalky due to its silica shell on the microalgae cell. Therefore, the Aurantiochythrium and Diatoms were not suitable for producing the biocokes.

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Section: Resultsmentioning

confidence: 50%

Section: Resultsmentioning

confidence: 57%

See 1 more Smart Citation

Production of biocoke from microalgae powder

Ang

Koesoemadinata

Khudzari

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Among the adsorbents, the abundance of natural adsorbents, namely agricultural wastes, is exploited for methylene blue removal because of their environmental friendliness, low cost, and sustainability (Daud et al, 2018 ; Stavrinou et al, 2018 ; Kadhom et al, 2020 ). The agricultural sector in Malaysia is thriving, especially in the area of fruit commodity production (Mansor et al, 2018 ; Baharin et al, 2020 ). Consequently, this results in voluminous fruit waste (0.310 million tonnes of sugarcane bagasse, 0.239 million tonnes of coconut waste, 803 938 tonnes of banana waste, and 275 732 tonnes of pineapple waste in 2015), thus presenting an opportunity for it to be used as an effective adsorbent (Mansor et al, 2018 ; Baharin et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…The agricultural sector in Malaysia is thriving, especially in the area of fruit commodity production (Mansor et al, 2018 ; Baharin et al, 2020 ). Consequently, this results in voluminous fruit waste (0.310 million tonnes of sugarcane bagasse, 0.239 million tonnes of coconut waste, 803 938 tonnes of banana waste, and 275 732 tonnes of pineapple waste in 2015), thus presenting an opportunity for it to be used as an effective adsorbent (Mansor et al, 2018 ; Baharin et al, 2020 ). These wastes contain functional groups such as hydroxy, phenols and carboxyl groups, which enable pollutants to attach to the agricultural wastes (Daud et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Optimization of culture conditions for improved green biodecolourization of methylene blue by Rhodococcus pyridinivorans strain UCC 0003

Maniyam

Hari

2021

bta

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Methylene blue is a toxic dye present in the textile industry, and if left untreated, it causes harm to the environment. Therefore, to decolorize methylene blue from industrial effluents, a green approach using Rhodococcus pyridinivorans strain UCC 0003 was attempted. Methylene blue decolorization was measured spectrophotometrically, and the static condition yielded 86% decolorization after 24 h as compared to the shaking mode (20%). Optimization of static conditions using the one-factor-at-a-time approach resulted in 100% decolorization at 30EC, pH 6, inoculum size of 16% (v/v), and 5% (v/v) banana peel addition as a carbon source. The R. pyridinivorans strain UCC 0003 could successfully and completely decolorize 0.75 g/l methylene blue for 4 consecutive cycles, which is advantageous from an economic point of view. The rate of methylene blue disappearance was investigated using 10% (v/v) R. pyridinivorans strain UCC 0003 at 30EC over a certain incubation time with 0.4 g/l to 10.0 g/l methylene blue as the substrate. This study revealed V max and K m values of 37.04 g/l/h and 55.69 g/l, respectively, as the kinetic behavior of methylene blue-decolorizing enzymes from the bacterial strain. The properties of the treated solution of methylene blue resembled the control system (distilled water) for the phytotoxicity study, thereby indicating the complete removal of dye toxicity as evidenced by the growth of Vigna radiata and Triticum aestivum, respectively, in the treated methylene blue solution. This local bacterial strain has therefore a huge potential to be used as a green biocatalyst for the bioremediation of methylene blue-containing industrial effluents.

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