Energetic valorisation of olive mill wastewater impregnated on low cost absorbent: Sawdust versus olive solid waste

Chouchène, Ajmia; Jeguirim, Mejdi; Favre‐Réguillon, Alain; Trouvé, Gwenaëlle; Buzit, Gérard Le; Khiari, Besma; Zagrouba, Féthi

doi:10.1016/j.energy.2011.03.044

Cited by 43 publications

(24 citation statements)

References 28 publications

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“…The found fixed carbon values were between 16.52% and 16.84%, while volatile matter was around 69%. Similar results were obtained in the investigations conducted on olive cake by Al-Widyan et al (2006), Mirande et al (2007) and Chouchene et al (2012), where fixed carbon was between 9.94 and 23.4%, while volatile matter was between 67.7 and 80.19%. High volatile matter content indicates that during combustion most of the biomass material will volatilize and burn as gas within the system.…”

Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

“…Therefore it can be concluded that the investigated substrates have moisture levels almost optimal for biogas production. The analysis of ash showed the content of organic and mineral matter in the samples; ash percentage content was found in a range from 6.88% in digested residue from variety cake to 6.92% in digested residue from hybrid cake, while ash content of 7%, found in olive pomace, is consistent with literature sources (Chouchene et al, 2012).…”

Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

“…The samples were compared against CEN/TS 14961:2005 as the referent standard for solid biofuels quality. Table 1 shows that moisture content was approximately (7.00-7.31%) in both samples, which is similar to that of olive cake, as described in the available literature (Al-Widyan et al, 2006;Mirande et al, 2007;Chouchene et al, 2012). Moreover, ash content was somewhat above 7.0% which is a value higher than expected, but it remains within the upper limit of the CEN/TS 14961:2005 standard; high content of ash could be an effect of soil fertilization during rapeseed cultivation.…”

Section: Rapeseed Cake As Substrate In Anaerobic Digestionmentioning

confidence: 67%

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Reuse of rapeseed by-products from biodiesel production

Krička

Matin

Voća

et al. 2015

Span. j. agric. res.

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The objective of this paper is to investigate usability of rapeseed cake from biodiesel fuel production as an energy source. For this research, rapeseed was grown at the research site of the Faculty of Agriculture in Zagreb, Croatia. The investigated rapeseed cake, residue from cold pressing, was divided in two groups of samples. The first group was a mix of three varieties (Bristol, Express and Navajo), while the other group consisted of three hybrids (Artus, Baldur, Titan). The utilization of rapeseed cake for energy via two routes was evaluated; namely, utilization of rapeseed cake as (1) solid biofuel (pellets) with addition of 3% of glycerol, and (2) as substrate in anaerobic digestion (AD). In investigation of cake as solid fuel, proximate (moisture content, ash content, fixed carbon and volatile matter), ultimate (content of carbon, sulphur, hydrogen, oxygen and nitrogen) and physical and calometry analyses (abrasion, diameter, length, density, higher and lower heating value were carried out. As for its use in AD, production of biogas during 40 days was monitored with a view of assessing the use of digested residue as fertilizer in agricultural production. Both groups of digested residues were analysed (pH, electroconductivity, moisture content, ash content, content of nitrogen and carbon, C/N ratio, content of P 2 O 5 , K 2 O, Ca, Mg, Na). The analysis indicated that the investigated raw material is usable as solid and gas biofuel, and digested residue as fertilizer in ecological agriculture. The two groups of samples analysed here did not show significant differences. Additional keywords: rapeseed cake; Brassica napus; pressing; pelletizing; biogas production; proximate and ultimate analysis Abbreviations used: AD (anaerobic digestion); D (diameter); EC (electroconductivity); EU (European Union); HHV (higher heating value); L (lenght); LHV (lower heating value) Citation: Krička, T.; Jurišić, V.; Bilandžija, N. (2015). Reuse of rapeseed by-products from biodiesel production. Spanish Journal of Agricultural Research, Volume 13, Issue 1, e02-007, 9 pages. http://dx

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Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

Section: Rapeseed Cake As Substrate In Anaerobic Digestionsupporting

confidence: 75%

Section: Rapeseed Cake As Substrate In Anaerobic Digestionmentioning

confidence: 67%

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Reuse of rapeseed by-products from biodiesel production

Krička

Matin

Voća

et al. 2015

Span. j. agric. res.

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“…This can contribute to the earlier Energies 2017, 10, 710 4 of 14 decomposition of lignin. Several researchers have found similar thermal profiles [38][39][40][41]. During the first step of pyrolysis, the chemical bonds in the three major constituents of olive pomace, namely cellulose, hemicellulose, and lignin, are thermally cracked.…”

Section: Thermogravimetric Studymentioning

confidence: 89%

“…The second pyrolysis step of olive pomace happens in the range of 340-450 • C. During this step, various parallel and serial reactions occur either homogeneously or heterogeneously. These reactions include dehydration, cracking, reforming, condensation, polymerization, oxidation, and gasification reactions [39].…”

Section: Thermogravimetric Studymentioning

confidence: 99%

The Potential of Thermal Plasma Gasification of Olive Pomace Charcoal

Tamošiūnas

Chouchène²,

Valatkevičius

et al. 2017

Energies

Self Cite

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Annually, the olive oil industry generates a significant amount of by-products, such as olive pomace, olive husks, tree prunings, leaves, pits, and branches. Therefore, the recovery of these residues has become a major challenge in Mediterranean countries. The utilization of olive industry residues has received much attention in recent years, especially for energy purposes. Accordingly, this primary experimental study aims at investigating the potential of olive biomass waste for energy recovery in terms of synthesis gas (or syngas) production using the thermal arc plasma gasification method. The olive charcoal made from the exhausted olive solid waste (olive pomace) was chosen as a reference material for primary experiments with known composition from the performed proximate and ultimate analysis. The experiments were carried out at various operational parameters: raw biomass and water vapour flow rates and the plasma generator power. The producer gas involved principally CO, H 2 , and CO 2 with the highest concentrations of 41.17%, 13.06%, and 13.48%, respectively. The produced synthesis gas has a lower heating value of 6.09 MJ/nm 3 at the H 2 O/C ratio of 3.15 and the plasma torch had a power of 52.2 kW.

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Devolatilization behavior and pyrolysis kinetics of potential Tunisian biomass fuels

Jeguirim

Elmay

Limousy

et al. 2014

Env Prog and Sustain Energy

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Biomass thermochemical conversion is complex and requires a good understanding of the thermal decomposition process. This process may be identified using mass loss kinetics which are useful for the design of proper equipment used for biomass conversion. This work aims to determine devolatilization kinetic parameters characterizing four Tunisian biomass species: industrial by product (Pine Sawdust), agro‐industrial by product (Olive Solid Waste), agricultural residue (Date Palm Trunk) and seaweed (Posidonia Oceanica) using data from non‐isothermal thermogravimetry and the Coats and Redfern calculation method. Decomposition TG and DTG data were analyzed by applying 10 kinetic models including processes governed by nuclei growth, surface nucleation followed by geometric, diffusion and chemical reaction models. Obtained results show that biomass pyrolysis is represented by two successive steps: (i) devolatilization stage characterized by high weight loss rate, which is well described by diffusional, surface nucleation followed by geometric and first order chemical reaction models. (ii) char formation stage characterized by low weight loss rate, which is well described by second order and third order chemical reaction models. © 2014 American Institute of Chemical Engineers Environ Prog, 33: 1452–1458, 2014

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Energetic valorisation of olive mill wastewater impregnated on low cost absorbent: Sawdust versus olive solid waste

Cited by 43 publications

References 28 publications

Reuse of rapeseed by-products from biodiesel production

Reuse of rapeseed by-products from biodiesel production

The Potential of Thermal Plasma Gasification of Olive Pomace Charcoal

Devolatilization behavior and pyrolysis kinetics of potential Tunisian biomass fuels

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