Effects of size and thermophilic pre-hydrolysis of banana peel during anaerobic digestion, and biomethanation potential of key tropical fruit wastes

Odedina, Mary Jesuyemi; Charnnok, Boonya; Saritpongteeraka, Kanyarat; Chaiprapat, Sumate

doi:10.1016/j.wasman.2017.07.003

Cited by 43 publications

(18 citation statements)

References 30 publications

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“…Results suggest that sCOD concentration corresponded to temperature increment, indicating a temperature assisted solubilization/hydrolysis [9]. Within a certain limit, higher temperature promoted higher microbial enzyme activities [3]. Thermophilic condition also reportedly enhanced the production and release of extracellular hydrolytic enzymes from hydrolytic bacteria and help compromise substrate structures.…”

Section: A Orp Profilementioning

confidence: 89%

“…In staged AD, hydrolysis always takes place in first stage reactor. Thus, preparation of the substrate to a more soluble form can increase the subsequent digestion in the second stage [3].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies reported various pretreatment methods to Manuscript enhance hydrolysis (substrate solubilization), including physical, chemical, and biological means, or the combinations [3]. Since warm temperature has an effect on the activity of hydrolytic enzymes, controlling the temperature could then be used as a simple pretreatment scheme for hydrolysis [4].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Temperature and Oxidation-Reduction Potential on Hydrolysis of Swine Manure Wastewater

Chetawan¹,

Saritpongteeraka²,

Chaiprapat³

2020

IJESD

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Thermal and micro-aeration pretreatments were applied to swine wastewater in order to improve hydrolysis of the substrate for biogas production. The experiments were carried out in 5-L reactors using 1% total solids concentration swine manure wastewater. Thermal pretreatments were performed at temperature of 30 o C (room temperature), 45 o C and 55 o C, while the micro-aeration pretreatments were operated at controlled ORP of -300 and -420 mV. Results indicated that hydrolysis in terms of sCOD release was increased by 18.5% and 23.1% at 45 and 55 o C, respectively (compared to 30 o C). TVFA also increased as a result of heightened acidogenesis. Micro-aeration could improve hydrolysis by 10.1% and 21.3%, and TVFA by 7.23% and 12.87% (compared to non micro-aeration/uncontrolled ORP) at ORP -300 and -420 mV, respectively. Both pretreatment methods attained high hydrolysis efficiency within 24 hr. However, too long of micro-aeration could lead to a loss of organic carbon thru oxidation as evidenced by the disappearing organic acids in the test reactors. Both thermal and micro-aeration pretreatments are environmental friendly and could be a simple solution to increase efficiency of biogas production by means of pre-hydrolysis.

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Section: A Orp Profilementioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Temperature and Oxidation-Reduction Potential on Hydrolysis of Swine Manure Wastewater

Chetawan¹,

Saritpongteeraka²,

Chaiprapat³

2020

IJESD

Self Cite

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“…The energy potential and chemical composition of specific fruit waste biomass have already been investigated; providing some data for comparison with result values from the present research (Table 6). Odedina et al [63] A c -ash content, NCV-net calorific value.…”

Section: Chemical Analysismentioning

confidence: 99%

Potential of Tropical Fruit Waste Biomass for Production of Bio-Briquette Fuel: Using Indonesia as an Example

et al. 2017

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Within developing countries, there is an appeal to use waste biomass for energy generation in the form of bio-briquettes. This study investigated the potential use of bio-briquettes that are produced from the waste biomass of the following tropical fruits: durian (Durio zibethinus), coconut (Cocos nucifera), coffee (Coffea arabica), cacao (Theobroma cacao), banana (Musa acuminata) and rambutan (Nephelium lappaceum). All fruit waste biomass samples exhibited an extremely high level of initial moisture content (78.22% in average). Fruit samples with the highest proportion of fruit waste biomass (of total unprocessed fruit mass) were represented by cacao (83.82%), durian (62.56%) and coconut (56.83%). Highest energy potentials (calorific value) of fruit waste biomass were observed in case of coconut (18.22 MJ·kg −1 ), banana (17.79 MJ·kg −1 ) and durian (17.60 MJ·kg −1 ) fruit samples, whereas fruit waste biomass with the lowest level of ash content originated from the rambutan (3.67%), coconut (4.52%), and durian (5.05%) fruit samples. When investigating the energy demands to produce bio-briquettes from such feedstock materials, the best results (lowest amount of required deformation energy in combination with highest level of bio-briquette bulk density) were achieved by the rambutan, durian and banana fruit waste biomass samples. Finally, all investigated bio-briquette samples presented satisfactory levels of bulk density (>1050 kg·m −3 ). In conclusion, our results indicated the practicability and viability of such bio-briquette fuel production, as well as supporting the fact that bio-briquettes from tropical fruit waste biomass can offer a potentially attractive energy source with many benefits, especially in rural areas.

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“…Previously, the anaerobic digestion studies were conducted either for banana wastes as a whole or comparison of several fruit peels without considering the maturity of the fruit or peel [9,20,21]. For instance, Sanjaya et al [12] reported the ultimate methane yield for the ripe banana peel at batch digestibility study under the mesophilic condition that is 342.25mLCH 4 /gVS.…”

Section: Introductionmentioning

confidence: 99%

Energy Recovery from Anaerobic Digestion of Banana Peels

Shaharoshaha¹,

Sulaiman²,

Seswoya³

2019

IJRTE

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Bananas are tropical fruits mostly eaten in Malaysia. The banana peels are high in organic, and putrescible caused the odour and leachate problem where it has been a dump. In practice, banana peels considered as a waste product that has been combined with municipal solid waste and dumped into the landfills. However, banana peels are bountiful in organic matter and high with moisture content. Thus, it could be a convincing substrate for biogas production through anaerobic digestion so that the major concerns of environmental protection is achieved aside from producing energy in a sustainable way. Therefore, this study was initiated to estimate the ultimate methane yield from the unripe banana peel (UBP) and ripe banana peel (RBP). Besides that, the assessment on the kinetics of the methane production from UBP and RBP is conducted using Modified Gompertz and first-order kinetic modelling. In this study, the anaerobic digestibility of banana peels measured in a batch reactor for 25 days each fed by UBP and RBP. The batch reactors operated at an inoculum to substrate ratio (I/S) of 1.0 and at a mesophilic temperature (37°C). The ultimate methane yields from UBP and RBP digestion were 847.57mLCH4 /gVS and 1405.31mLCH4 /gVS, respectively. The higher bioavailability (in term of COD, and solid) in RBP resulted in the higher methane production rate. Two first-order and modified Gompertz kinetic models were compared for the prediction of organic degradation, and the results indicated that the first-order kinetic model of the RBP fitted the experiment best. It concluded that ripe banana peels are the most preferable feedstock for the anaerobic digestion.

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Effects of size and thermophilic pre-hydrolysis of banana peel during anaerobic digestion, and biomethanation potential of key tropical fruit wastes

Cited by 43 publications

References 30 publications

Influence of Temperature and Oxidation-Reduction Potential on Hydrolysis of Swine Manure Wastewater

Influence of Temperature and Oxidation-Reduction Potential on Hydrolysis of Swine Manure Wastewater

Potential of Tropical Fruit Waste Biomass for Production of Bio-Briquette Fuel: Using Indonesia as an Example

Energy Recovery from Anaerobic Digestion of Banana Peels

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