Predicting the pressure drop of a biofilter and the specific surface area of the packing material

Woudberg, Sonia; Jaarsveld, Jacoline van; Dumont, Éric

doi:10.1016/j.powtec.2018.09.059

Cited by 10 publications

(3 citation statements)

References 20 publications

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“…A valve (2) was used to adjust the airflow rate. The air passed through the perforated plate (15) and the packing material (16) towards the outlet duct (13). The packing material of the biofilter consisted of polyvinyl chloride (PVC) plates that were vertically arranged in parallel with each other.…”

Section: Biofilter Designmentioning

confidence: 99%

“…It is important to choose suitable packing material that could provide a medium for microorganism growth [9]. Improvement of biofiltration trends of various pollutants means a more efficient biofiltration process by using cheaper, more durable packing materials, selected according to the principles of sustainability and by modeling the optimal aerodynamic conditions [10][11][12][13]. The selection of suitable packing material is important factor for effective performance of biofilters.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Packing Material Composition on the Aerodynamic Processes in a Wavy Lamellar Plate-Type Biofilter

2021

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Reducing the pressure drop in biofilters is important for the reduction of the energy consumption of these devices. Usually, the pressure drop increases with time due to the biomass growth within the packing material. The aim of this study was to evaluate the aerodynamic processes in a laboratory-scale wavy lamellar (WL) plate-type biofilter equipped with a capillary system for humidifying the packing material. The packing material of a designed biofilter consisted of wavy polymer plates (WPP) vertically arranged next to each other. The pattern of arrangement of the plates allowed sufficiently large spaces, and therefore, the use of such structure had an impact on a decrease in the pressure drop of the biofilter. WPP were coated with three different kinds of materials, namely (I) wood fiber (WF), (II) non-woven caulking material (NWCM) and WF, and (III) linen material (LM) and WF. The results showed that the composition of the packing material influenced pressure drop of the biofilter. The packing material, which consisted of WPP covered with WF, had the lowest pressure drop compared with the other two packing material compositions. In this study, the experimental results were also compared with the results of the performed mathematical modeling of airflow movement.

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Section: Biofilter Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Packing Material Composition on the Aerodynamic Processes in a Wavy Lamellar Plate-Type Biofilter

2021

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“…They showed a low impact (i.e., high efficiency) at low Darcy numbers (< 10 –4 ), whereas at high Darcy numbers, the porosity significantly affects the removal efficiency. Woudberg et al 22 proposed a pore-scale model to predict the pressure drop of a biofilter. The prediction of Malakar et al 23 returned to the original Ottengraf and Van Den Oever model to describe the theoretical elimination capacity and theoretical average biofilm thickness in a toluene biofilter.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of steady state stability in a toluene biodegrading biofilter

Süß

Visscher

2022

Sci Rep

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Different steady states in a toluene biodegrading biofilter were explored experimentally and numerically. Experimental results showed that a gradual increase of the toluene inlet concentration over several weeks leads to a consistently low exit concentration, with a drastic increase at an inlet concentration change from 7.7 to 8.5 g m−3, indicating an alteration in steady state. A significant and sudden drop in the removal efficiency from 88 to 46% was observed. A model that includes nitrogen and biomass dynamics predicted results matching the experimental biofilter performance well, but the timing of the concentration jump was not reproduced exactly. A model that assumes a gradual increase of toluene inlet concentration of 0.272 g m−3 per day, accurately reproduced the experimental relationship between inlet and outlet concentration. Although there was variation between experimental and simulated results, a clear confirmation of the jump from one steady state to another was found.

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A review of the recent progress in biotrickling filters: packing materials, gases, micro-organisms, and CFD

Liu,

Gao,

et al. 2023

Environ Sci Pollut Res

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Predicting the pressure drop of a biofilter and the specific surface area of the packing material

Cited by 10 publications

References 20 publications

Effect of Packing Material Composition on the Aerodynamic Processes in a Wavy Lamellar Plate-Type Biofilter

Effect of Packing Material Composition on the Aerodynamic Processes in a Wavy Lamellar Plate-Type Biofilter

Experimental and numerical study of steady state stability in a toluene biodegrading biofilter

A review of the recent progress in biotrickling filters: packing materials, gases, micro-organisms, and CFD

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