A study of the impact of particle size and adsorption phenomena in a compost-based biological filter

Delhoménie, Marie-Caroline; Bibeau, Louise; Heitz, Michèle

doi:10.1016/s0009-2509(02)00397-4

Cited by 62 publications

(44 citation statements)

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“…Conversely, large size particles favour gas flows but reduce the number of potential sites for the microbial activity [11]. Adu and Otten (1996) [12] have reported that particle size is a parameter even more influential to the performance than the gas flow rate.…”

Section: Introductionmentioning

confidence: 99%

“…If the size of the particles is small large specific surface areas essential for mass transfer are provided. However, smaller sizes also create a larger resistance to gas flow and, thus, larger operating costs due to the electrical power consumption of the blower.Conversely, large size particles favour gas flows but reduce the number of potential sites for the microbial activity [11]. Adu and Otten (1996) [12] have reported that particle size is a parameter even more influential to the performance than the gas flow rate.…”

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confidence: 99%

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A comparative study based on physical characteristics of suitable packing materials in biofiltration

Dorado

Lafuente

Gabriel

et al. 2010

Environmental Technology

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In the present work, 10 packing materials commonly used as support media in biofiltration are analyzed and compared to evaluate their suitability according to physical characteristics. The nature of the packing material in biofilters is an important factor for the success in their construction and operation. Different packing materials have been used in biofiltration without a global agreement about which ones are the most adequate for biofiltration success. The materials studied were chosen according to previous works in the field of biofiltration including both organic and inorganic (or synthetic) materials. A set of nine different parameters were selected to cope with well-established factors such as material specific surface area, pressure drop, nutrients supply, water retentivity, sorption capacity and purchase cost. One ranking of packing materials was established per each parameter studied to define a relative suitability degree. Since biofiltration success generally depends on a combination of the ranked parameters, a procedure was defined to compare packing materials suitability under common situations in biofiltration. Selected scenarios such as biofiltration of intermittent loads of pollutant and biofiltration of waste gases with low relative humidity were investigated. The results indicate that, out of the packing materials studied, activated carbons were ranked on top of several parameter rankings and showed as a significantly better packing material when parameters were combined to assess such selected scenarios. Keywords: packing materials; biofiltration; Physical properties; Economical assessment IntroductionBiological treatments have become an effective and economical alternative to traditional gas treatment systems.The correct selection of the packing material employed in a biofilter or a biotrickling filter is an important decision to achieve high removal efficiencies and to maintain an optimal performance in the long-term run [1]. Despite the widely recognized importance of the support media role, several packing materials have been used in biofiltration under a wide range of operating conditions without a global agreement about which one is the most adequate.Previous works studying packing materials are mostly based on a sole packing material case study [2][3][4] or on the comparison of the removal efficiency achieved by different packed biofilters under the same operating conditions [5,6]. In general, these studies concluded that high removal efficiencies in biofilters are strongly related to packing material properties although physical and chemical properties of the materials were not evaluated thoroughly. The nature of the carrier material, which may be organic, natural inorganic or entirely synthetic, is a crucial factor for the successful application of biofilters and biotrickling filters because it affects the frequency at which the medium is replaced and other key factors such as bacterial activity and pressure drop across the bioreactor [7,8].Among the natural carriers reported, com...

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

A comparative study based on physical characteristics of suitable packing materials in biofiltration

Dorado

Lafuente

Gabriel

et al. 2010

Environmental Technology

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“…The discrepancy between the theoretical ratio (3.32) and the experimental ratio (1.82) indicated that CO2 was not the only final conversion of carbon by strain HJ1, and remaining between them might be other conversions accumulated during biodegradation, such as biomass and extracellular polymers (Delhoménie et al, 2002).Through metabolic effects of strain HJ1, 0.9057 mg C contained by 1 mg o-xylene could be converted to 0.4966 mg C-CO2 and 0.1187 mg C-biomass, from which a carbon recovery efficiency of 67.93% was calculated . After formation of dihydroxylated compounds, there were two manners of ring cleavage, ortho (between the two hydroxylated carbons) or meta (between a hydroxylated and non-hydroxylated carbon) (Bozinovski et al, 2014;Prabhu and Phale, 2003;J.…”

Section: Mineralization Of O-xylene By Strain Hj1mentioning

confidence: 83%

Degradation of o-xylene by a novel strain, Zoogloearesiniphila HJ1: Identification, kinetics and metabolic pathway

2017

Global NEST Journal

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“…Experimental data were fitted to Langmuir and Freundlich isotherm models, since they are the most common patterns used for predicting adsorption performance in biofiltration (Delhoménie et al, 2002;Helminen et al, 2000). A summary of the results of the adsorption isotherms is shown in Table II.…”

Section: Adsorption Of Ammonia On Organic Materialsmentioning

confidence: 99%

“…These phenomena are believe to play a key role in the performance of biofilters, especially under transient conditions or shock loading, since absorption and adsorption may act as buffer for biological activity (Barona et al, 2005;Mcnevin and Barford, 2001). To our knowledge, only few studies have been focused on the adsorption of some pollutants in compost or peat (Delhoménie et al, 2002;Mcnevin and Barford, 1998), being the absorption and the combined adsorption-absorption studies very scarce and usually conducted on synthetic or well-defined inorganic materials (Helminen et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Adsorption, absorption, and biological degradation of ammonia in different biofilter organic media

Pagans

Font

Sánchez

2006

Biotech & Bioengineering

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A tailor-made apparatus called ammoniometer, which is a batch mode respirometer applied to the study of ammonia biodegradation in biofilter media, has been used to evaluate adsorption, absorption, and biodegradation in five different organic materials (compost, coconut fibre, bark, pruning wastes, and peat) obtained from full-scale biofilters in operation in several waste treatment plants. The results showed that absorption could be represented by a Henry's law linear equation, with values of the Henry coefficient significantly higher (from 1,866 to 15,320) than that of pure water (1,498). Adsorption data were successfully fitted to Langmuir and Freundlich isotherms and maximum adsorption capacity varies from 1.06 to 1.81 mg NH(3)/g dry media. Ammonia biodegradation rates for each organic material were also calculated. Biodegradation rates varied from 0.67 to 7.82 mg NH(3)/kg media/d depending on the material tested. The data obtained showed important differences in the behaviour of the biofilter organic media, which has important implications in the design and modelling of these systems.

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A study of the impact of particle size and adsorption phenomena in a compost-based biological filter

Cited by 62 publications

References 13 publications

A comparative study based on physical characteristics of suitable packing materials in biofiltration

A comparative study based on physical characteristics of suitable packing materials in biofiltration

Degradation of o-xylene by a novel strain, Zoogloearesiniphila HJ1: Identification, kinetics and metabolic pathway

Adsorption, absorption, and biological degradation of ammonia in different biofilter organic media

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