Investigation of the accumulation of aromatic compounds during biogas production from kitchen waste

Hecht, C.; Griehl, Carola

doi:10.1016/j.biortech.2008.07.034

Cited by 57 publications

(53 citation statements)

References 19 publications

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“…The concentrations of CH 4 , H 2 and CO 2 were quantified by a GC (GC-2030, Tet Instrument, China) equipped with a thermal conductivity detector (TCD) and a 2 m stainless column packed with Porapak TDS201 (60/80 mesh). The operating temperatures of the column and detector were kept at 80°C and 110°C, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…FW with great producing mount creates many challenges in terms of environmental protection and public health [3,4]. However, FW contains a large amount of volatile organic compounds mainly in terms of single sugars, starch and protein, which are nutrient-rich organic material to produce biogas and other energyrich organic compounds as end-products by anaerobic digestion (AD) [5].…”

Section: Introductionmentioning

confidence: 99%

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The Applicability of Electrical Current Based Treatment for the Remediation of Different Types of Polluted Soils Contaminated by Organic Compounds

Rada¹,

Istrate²

2012

J Bioremed Biodegrad

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This study focused on the effect of the variation of intermediate volatile fatty acids (VFAs) caused by the change of organic load on methane production and methanogenic community shift during anaerobic digestion (AD). Eight groups with different F/I (VS food wastes :VS sludge ) were conducted, while the inoculation sludge had a same amount. Operational performance for every groups was monitored by assessing biological activity, methane production, concentration of VFAs. The major intermediate VFAs of anaerobic digestion were acetate, propionate, iso-butyrate, n-butyrate, n-valerate and iso-valerate; and acetate and n-butyrate were the most abundant components. The increasing of F/I changed the predominant VFAs type from acetic acid to n-butyric acid, while the total VFAs concentration increased. Besides, the methane production increased and then decreased, and reached the maximum (170.3 ml/g added VS -1 ) at F/I of 1. The methanogenic diversity was screened using the high-throughput sequencing, which shown VFAs had a significant impact on the archaeal community as the dominant archaea shifted from Methano bacterium to Methano sarcina.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Applicability of Electrical Current Based Treatment for the Remediation of Different Types of Polluted Soils Contaminated by Organic Compounds

Rada¹,

Istrate²

2012

J Bioremed Biodegrad

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“…For example, the unpleasant odors and undesired byproduct formation from combustion and leakage of leachates by landfill possibly due to the high moisture and salt contents in kitchen wastes may limit the applications and efficiencies of these technologies for kitchen waste treatment (Allen et al, 1997;Zou et al, 2003;Popat and Deshusses, 2008;Chomanee et al, 2009;Ning and Sioutas, 2010;Bari et al, 2011;Lo et al, 2011). In addition to incineration and landfill, composting, swine feeding, and bioenergy recycle are the three major technologies used for the recycled kitchen wastes, with public interest in composting has been on the increase in these years (Dimambro et al, 2007;Boldrin et al, 2009;Hecht and Griehl, 2009;Zhang et al, 2010;Latif et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Removal of Odor-Causing Substances by a Pilot-Scale Oxidative-Reductive Scrubbing Tower System

Chen

Lin

2013

Aerosol Air Qual. Res.

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Composting is a proven technology for releasing the economic value of kitchen wastes. Following our previous efforts to expand and modify a novel, pilot-scale two-stage oxidative-reductive treatment technology for future implementation as a full-scale tower system, the objective of this work was to examine this scrubber tower system using the optimal operational scenario observed in our previous bench-scale experiments and with two different scrubbing liquid flow rates to allow for its subsequent application at full-scale. As the pH values ranged from 4.0 to 6.0 and from 10.0 to 11.5 in the acidic and alkaline scrubbers, respectively, and the total chlorine concentration ranged from 10 to 95 mg/L as Cl in the acidic scrubber, odor control treatment efficiencies of more than 95% were observed using this treatment technology. A slightly enhanced performance was obtained when a lower scrubbing liquid flow rate being employed, possibly due to the additional contact time between the scrubbing liquids and odor-causing substances in the composting gases. Although a higher scrubbing liquid flow rate increased the possibility of leaking chlorine into the treated gases, which affected the performance of this technology, stronger pH variation and chlorine consumption at the lower scrubbing liquid flow rate indicated the importance of controlling sufficient levels of scrubbing liquid in the system to maintain the treatment efficiency. The results provided insights regarding the use of this treatment technology for minimizing the adverse impacts associated with kitchen waste composting, including the emission of substances that may cause health and/or environmental concerns.

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“…A wide variety of substances have been reported to be inhibitory to methanogenic bacteria. Among these inhibitory compounds, organic compounds are mentioned and more especially aromatic compounds [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Human activity also contributes to the presence of aromatic compounds in the environment: waste incineration, petrochemical effluents, industries of paper manufacturing, pharmaceutical and chemical industries, pesticides etc. are, very important sources of aromatic pollution [8][9][10]. The presence of aromatic xenobiotic in the environment may create serious public health and environmental problems.…”

Section: Introductionmentioning

confidence: 99%

The Impact of the Bisubstituted Aromatics Functional Groups on the Inhibition of Methane Biosynthesis (Biogas)

Kayembe¹,

Basosila²,

Mpiana³

et al. 2012

AiM

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Inhibitory compounds are often found to be the leading cause of anaerobic reactor upset and failure since they are present in substantial concentration in wastewaters and organic solid wastes. Among these inhibitory compounds, organic compounds are mentioned and more especially aromatic compounds. The purpose of this work was to evaluate the effect of bisubstituted aromatics functional groups on the methanogenic inhibition. The toxicity to acetoclastic methanogenic bacteria has performed in serum flasks, utilizing digested pig manure as inoculums, by measuring cumulative methane production. The results obtained indicate that some general relationships exist between the bisubstituted aromatic structures and their inhibitory effects on methanogenic bacteria. This demonstrates sufficiently that the grafting of hydrophobic or hydrophilic substituent on the benzene or monofunctional aromatic compound, make the obtained compound more or less toxic as the case and that in the same order of toxicity. A significant correlation was obtained indicating that the partitioning of bisubstituted aromatics into lipophilic membranes in bacteria may have a role in the inhibition of methane biosynthesis.

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Investigation of the accumulation of aromatic compounds during biogas production from kitchen waste

Cited by 57 publications

References 19 publications

The Applicability of Electrical Current Based Treatment for the Remediation of Different Types of Polluted Soils Contaminated by Organic Compounds

The Applicability of Electrical Current Based Treatment for the Remediation of Different Types of Polluted Soils Contaminated by Organic Compounds

Removal of Odor-Causing Substances by a Pilot-Scale Oxidative-Reductive Scrubbing Tower System

The Impact of the Bisubstituted Aromatics Functional Groups on the Inhibition of Methane Biosynthesis (Biogas)

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