Solubilisation of fruits and vegetable dregs through surfactant mediated sonic disintegration: impact on biomethane potential and energy ratio

Shanthi, M.; Banu, J. Rajesh; Sivashanmugam, P.

doi:10.1080/09593330.2019.1677784

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…On the other hand, FVHW, primarily non-commercial parts of plants such as leaves, bodies, stems as well as unmerchantable fruits and vegetables, have a milder lignocellulosic structure than the other agricultural residues and require less severe pretreatment conditions before AD. There have been very limited studies investigating the methane production potentials of mixed FVHW combined with pretreatment methods in the literature [3,5,[14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Chemical-Assisted Thermal Pretreatments on Methane Production from Fruit and Vegetable Harvesting Wastes: Process Optimization

Günerhan¹,

Us²,

Dumlu

et al. 2020

Molecules

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The increasing population creates excess pressure on the plantation and production of fruits and vegetables across the world. Consumption demand during the whole year has made production compulsory in the covered production system (greenhouse). Production, harvesting, processing, transporting, and distribution chains of fruit and vegetables have resulted in a huge amount of wastes as an alternative source to produce biofuels. In this study, optimization of two pretreatment processes (NaOH and HCl assisted thermal) was investigated to enhance methane production from fruit and vegetable harvesting wastes (FVHW) that originate from greenhouses. NaOH concentration (0–6.5%), HCl concentration (0–5%), reaction temperature (60–100 °C), solid content (1–5%), time of reaction (1–5 h), and mixing speed (0–500 rpm) were chosen in a wide range of levels to optimize the process in a broad design boundary and to evaluate the positive and negative impacts of independent variables along with their ranges. Increasing NaOH and HCl concentrations resulted in higher COD solubilization but decreased the concentration of soluble sugars that can be converted directly into methane. Thus, the increasing concentrations of NaOH and HCl in the pretreatments have resulted in low methane production. The most important independent variables impacting COD and sugar solubilization were found to be chemical concentration (as NaOH and HCl), solid content and reaction temperature for the optimization of pretreatment processes. The high amount of methane productions in the range of 222–365 mL CH4 gVS−1 was obtained by the simple thermal application without using chemical agents as NaOH or HCl. Maximum enhancement of methane production was 47–68% compared to raw FVHW when 5% solid content, 1-hour reaction time and 60–100 °C reaction temperature were applied in pretreatments.

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Section: Introductionmentioning

confidence: 99%

Impacts of Chemical-Assisted Thermal Pretreatments on Methane Production from Fruit and Vegetable Harvesting Wastes: Process Optimization

Günerhan¹,

Us²,

Dumlu

et al. 2020

Molecules

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“…The further upsurge of disintegration time (25-40 minutes), a decrement of LER and SS reduction were observed. Moreover, the present study LER (24.4%) at 20 minutes was higher than cetyltrimethylammonium bromide pretreated fruit and vegetable waste biomass attained 10% of LER at 60 minutes of disintegration time (Shanthi et al, 2019b). The significance of OZCAP method outcomes was gaged using a standard t-test for the disintegration time from 15 to 20 minutes at 0.03 g/g SS citric acid dosage.…”

Section: Impact Of Ozcap Methods On Fruit Waste For Ler and Ss Reductionmentioning

confidence: 59%

“…Net energy of OZP and OZCAP methods were achieved by balancing the spent energy with hydrogen production as output energy. LER was a key factor to valuate the energy spend for biomass pretreatment methods (Shanthi et al, 2019b). In this study, 24% LER was used to compute the spent energy for OZP and OZCAP methods.…”

Section: Resultsmentioning

confidence: 99%

Enrichment of hydrogen production from fruit waste biomass using ozonation assisted with citric acid

et al. 2021

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In this study, the impact of ozonation abetted with the citric acid pretreatment (OZCAP) method on fruit waste was investigated for ameliorating hydrogen production. Initially, the ozonation pretreatment (OZP) method was performed by varying ozone (O3) dosage and disintegration time. At optimized conditions (O3 dosage (0.04 g/g suspended solid; SS) and disintegration time (40 minutes)), 17.6% of liquefied organics emancipate rate (LER) and 13.5% of SS reduction were perceived. Further augmenting LER of fruit waste, OZCAP method was proceeded by varying citric acid dosage and disintegration time at an optimized OZP dosage (0.04 g/g SS). A higher LER (24.4%) and SS reduction (19%) were described at an optimal citric acid dosage (0.03 g/g SS) and disintegration time (20 minutes). Then, the hydrogen production potential of OZCAP, OZP and raw fruit waste were evaluated in which OZCAP method exhibited a higher cumulative hydrogen production (30 mL/g volatile solids). Energy valuation reveals that OZCAP method exhibited a net energy of 3.7 kWh/kg of fruit waste.

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Surfactant Combined Ultrasonic Pre-treatment for the disintegration of Sargassum tennerimum (marine macroalgae) and Evaluation of its Efficiency for the Generation of Biohydrogen

et al. 2023

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Solubilisation of fruits and vegetable dregs through surfactant mediated sonic disintegration: impact on biomethane potential and energy ratio

Cited by 5 publications

References 43 publications

Impacts of Chemical-Assisted Thermal Pretreatments on Methane Production from Fruit and Vegetable Harvesting Wastes: Process Optimization

Impacts of Chemical-Assisted Thermal Pretreatments on Methane Production from Fruit and Vegetable Harvesting Wastes: Process Optimization

Enrichment of hydrogen production from fruit waste biomass using ozonation assisted with citric acid

Surfactant Combined Ultrasonic Pre-treatment for the disintegration of Sargassum tennerimum (marine macroalgae) and Evaluation of its Efficiency for the Generation of Biohydrogen

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