Mesophilic Anaerobic Co-digestion of Olive-Mill Waste With Cattle Manure: Effects of Mixture Ratio

Bernal, José Ángel Rubio; Romero, L.I.; Wilkie, Ann C.; Morales, José Luis García

doi:10.3389/fsufs.2019.00009

Cited by 13 publications

(8 citation statements)

References 42 publications

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“…Previous studies demonstrated that the anaerobic digestion of 2POMW and CM yielded a maximum biogas production when mixed in a 75:25 ratio (2POMW:CM) (Pagés Díaz et al, 2011;Giuliano et al, 2013;Rubio et al, 2019). Based on these results, the mixtures used in this 6 study were prepared keeping the ratio 2POMW:CM constant but modifying the total solids percentage by diluting with demineralised water.…”

Section: Experimental Designmentioning

confidence: 99%

Modelization of anaerobic processes during co-digestion of slowly biodegradable substrates

et al. 2020

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Section: Experimental Designmentioning

confidence: 99%

Modelization of anaerobic processes during co-digestion of slowly biodegradable substrates

et al. 2020

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“…The volatile solids represent the organic fraction (biodegradable and non-biodegradable), in both particulate and dissolved form, susceptible to be metabolized during the anaerobic digestion process [73]. Removal efficiency is considered a significant parameter in evaluating the performance of an AD process.…”

Section: Vs Reduction During the Anaerobic Digestionmentioning

confidence: 99%

Biomethanation Potential (BMP) Study of Mesophilic Anaerobic Co-Digestion of Abundant Bio-Wastes in Southern Regions of Tunisia

et al. 2020

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Tunisia is a country that suffers from energy demand problems and environmental matters. Thus, Tunisian authorities desire to encourage the development of renewable energy sources, especially from biological processes, like anaerobic digestion. Therefore, this study is focused on the evaluation of biogas and bio-methane yield from the co-digestion of three available and abundant bio-wastes in the southern regions of Tunisia. The three different raw materials are an organic fraction of municipal solid waste, chicken manure, and olive mill wastewater. In this context, experimental work to evaluate the potential of biogas and bio-methane production was carried out at mesophilic temperature 35 °C and batch mode. The present work highlights the possibility of generating biogas from these organic wastes and reducing the amounts of the wastes to dispose of in landfills. The experimental study of the co-digestion process under specific conditions of carbon to nitrogen ratio (C/N), T, pH, and inoculums to substrate ratio ISR provided a high yield of net methane and net biogas, in comparison with other research works. Results showed a higher specific net methane production per kg of volatile solids, which is equal to 0.338 Nm3 methane/kg VS and 0.430 Nm3 methane/kg VS for two studied cases. The obtained volatile solids reduction was found to be 91% of the initial content, for a hydraulic retention time (HRT) of 40 days.

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“…This is because the anaerobic digesters are designed and operated in a relatively low cost and simple manner [26]. Numerous studies [27][28][29][30] investigated various anaerobic digestion techniques for olive mill wastewater. Several technologies and different pretreatment techniques were explored for assessing their impact on the digestive process.…”

Section: Introductionmentioning

confidence: 99%

“…Mesophilic (30-35 • C) and thermophilic (55-60 • C) circumstances were used as frequently as possible under various anaerobic digestive conditions [23]. Compared to mesophilic temperature, thermophilic operation improved performance because of its faster biochemical reaction and higher degradation rate of organic matter [30]. In comparison to two-phase olive mill waste, co-digestion increased the amount of accumulated methane (L) by 264-319%, the methane output by 293-351% (LCH 4 /kgVS added ), and the volatile solids consumed by 312-342% (LCH 4 /kgVSremoved).…”

Section: Introductionmentioning

confidence: 99%

Estimation of Sustainable Bioenergy Production from Olive Mill Solid Waste

et al. 2021

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The disposal of olive wastes and their wastewater is a major problem worldwide. An important recycling chain can be formed through biogas production and energy conversion from olive waste. This study developed an efficient and effective sustainable model for biogas production using anaerobic digestion conditions with the co-digestion of pretreated olive waste. The sample used was hard olive pomace, which was dried in an oven before being crushed to fine particles with a mortar and pestle. The sample was analyzed by a CE-440 Elemental Analyzer, and Fourier Transform Infrared Spectrophotometer (FTIR) analysis was performed using Shimadzu IRTracer-100. Through the analysis, a substantial amount of electrical energy of 769 kWh/t was found to be generated per ton of olive pomace due to the high volatile solid (VS) percentage of organic waste material incorporated during the calculation. Reduced land area for landfilling olive waste was calculated to be 108 m2 per year, whereas the potential to reduce landfill leachate production was evaluated to be 0.32 m3 per year.

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Mesophilic Anaerobic Co-digestion of Olive-Mill Waste With Cattle Manure: Effects of Mixture Ratio

Cited by 13 publications

References 42 publications

Modelization of anaerobic processes during co-digestion of slowly biodegradable substrates

Modelization of anaerobic processes during co-digestion of slowly biodegradable substrates

Biomethanation Potential (BMP) Study of Mesophilic Anaerobic Co-Digestion of Abundant Bio-Wastes in Southern Regions of Tunisia

Estimation of Sustainable Bioenergy Production from Olive Mill Solid Waste

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