2018
DOI: 10.3390/en11020449
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Energy Analysis of a Rotary Drum Bioreactor for Composting Tomato Plant Residues

Abstract: Energy produced from plant residue composting has stimulated great interest in heat recovery and utilization. Composting is an exothermic process often controlled through temperature measurements. However, energy analysis of the overall composting system, especially the rotary bioreactors, is generally not well known and very limited. This study presents detailed energy analysis in a laboratory-scale, batch-operated, rotary bioreactor used for composting tomato plant residues. The bioreactor was considered as … Show more

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Cited by 26 publications
(32 citation statements)
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“…The fixed tube was used for aeration and to support the temperature sensors ( Figure 2b). A detailed description of the bioreactors was reported in [11,24]. To optimize the efficient operational method for composting palm tree residues, one bioreactor was operated continuously (continuous aeration-rotation, D1), and three were operated for 20 min of aeration-rotation at 1, 2, and 3-hour intervals (D2, D3, and D4), respectively.…”
Section: Bioreactor Composting Systemsmentioning
confidence: 99%
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“…The fixed tube was used for aeration and to support the temperature sensors ( Figure 2b). A detailed description of the bioreactors was reported in [11,24]. To optimize the efficient operational method for composting palm tree residues, one bioreactor was operated continuously (continuous aeration-rotation, D1), and three were operated for 20 min of aeration-rotation at 1, 2, and 3-hour intervals (D2, D3, and D4), respectively.…”
Section: Bioreactor Composting Systemsmentioning
confidence: 99%
“…A similar experimental procedure was reported in [11,24]. For each bioreactor, compressed air (flow rate of 0.005 m 3 min −1 at 10-bar) was supplied to the horizontal tube which the bioreactor rotates around it.…”
Section: Experimental Procedures and Temperature Measurementsmentioning
confidence: 99%
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“…Therefore, wide ranges of heat generation (0.5-20 MJ kg -1 ) have been reported in the literature [9][10][11][12]. For laboratory-and pilot-scale bioreactors, the majority of the generated heat is lost to the surrounding air via convection and radiation mechanisms; these losses account for 30-94% of the total heat generation depending on the effectiveness of the bioreactor's insulation [9,13]. Therefore, during the thermophilic stage, it is important to optimize the operation conditions to reduce the composting time as much as possible [14].…”
Section: Introductionmentioning
confidence: 99%
“…These two types of bioreactors enhanced the efficiency of nutrition exchange as well as creating a shear force on the surface of the graft. In this way, the growth environment of cells was more similar to that of the in vivo status of endothelial cells, which improved the validity of the in vitro dynamic culture environments . In recent years, pulsating bioreactors have emerged as the third generation of bioreactors.…”
Section: Introductionmentioning
confidence: 99%