Increase of the purification efficiency of biofilters by the use of a complementary ionisation step

Steinberg, Iris; Rohde, Clemens; Bockreis, Anke; Jäger, Johannes

doi:10.1016/j.wasman.2005.02.014

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…UV process combinations have recently been used in treatment of chlorobenzene [106,107], dichloromethane [108], ethylbenzene [109], n-hexane [110], PCE [111], α-pinene [112][113][114], styrene [39,115], TCE [111], toluene [116,117], and o-xylene [118] as single substances or for mixtures of toluene and o-xylene [119], a mixture of ethyl acetate, toluene, ethylbenzene, xylene, ethyltoluene, and trimethylbenzene [120], and in a mixture of toluene, ethylbenzene, and xylene isomers [121]. NTP-based combinations were applied in treatment of chlorobenzene [122,123], 1,2-DCE [124], dimethyl disulfide [125], and limonene [126] as single substances and in a couple of different VOC mixtures [34,43,45,105,124,[127][128][129][130][131][132]. Additionally, first tests with magnetic fields as activation step were performed [133,134].…”

Section: Innovative Combinations Of Advanced Oxidation and Biologicalmentioning

confidence: 99%

Biological Waste Air and Waste Gas Treatment: Overview, Challenges, Operational Efficiency, and Current Trends

Dobslaw

Ortlinghaus²

2020

Sustainability

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International contracts to restrict emissions of climate-relevant gases, and thus global warming, also require a critical reconsideration of technologies for treating municipal, commercial, industrial, and agricultural waste gas emissions. A change from energy- and resource-intensive technologies, such as thermal post-combustion and adsorption, as well to low-emission technologies with high energy and resource efficiency, becomes mandatory. Biological processes already meet these requirements, but show restrictions in case of treatment of complex volatile organic compound (VOC) mixtures and space demand. Innovative approaches combining advanced oxidation and biofiltration processes seem to be a solution. In this review, biological processes, both as stand-alone technology and in combination with advanced oxidation processes, were critically evaluated in regard to technical, economical, and climate policy aspects, as well as present limitations and corresponding solutions to overcome these restrictions.

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Section: Innovative Combinations Of Advanced Oxidation and Biologicalmentioning

confidence: 99%

Biological Waste Air and Waste Gas Treatment: Overview, Challenges, Operational Efficiency, and Current Trends

Dobslaw

Ortlinghaus²

2020

Sustainability

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“…Ultimately, this must be the focus, especially with the principal aims of improved reactor design and management, reduced footprints, and development of more stringent guidelines for increased odorant treatment efficacy and, thus, enhanced sustainability. Therefore, the realization, which has been made for nonbiological methods, for example, ionization for reduced odorant concentration, 321 must be matched for microbial communities whose geographical spatiation, architecture, structure and activity drive the biofiltration process. While taking cognizance of their inherent limitations, the well established potential of molecular microecophysiology techniques, for bacterial, archaeal, and fungal catabolic strains, as applied in other ecosystems and waste management biotechnologies, should also be advocated in gas biofiltration.…”

Section: Bioreactormentioning

confidence: 99%

Waste Gas Biofiltration: Advances and Limitations of Current Approaches in Microbiology

Ralebitso-Senior

Senior

Felice

et al. 2012

Environ. Sci. Technol.

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As confidence in gas biofiltration efficacy grows, ever more complex malodorant and toxic molecules are ameliorated. In parallel, for many countries, emission control legislation becomes increasingly stringent to accommodate both public health and climate change imperatives. Effective gas biofiltration in biofilters and biotrickling filters depends on three key bioreactor variables: the support medium; gas molecule solubilization; and the catabolic population. Organic and inorganic support media, singly or in combination, have been employed and their key criteria are considered by critical appraisal of one, char. Catabolic species have included fungal and bacterial monocultures and, to a lesser extent, microbial communities. In the absence of organic support medium (soil, compost, sewage sludge, etc.) inoculum provision, a targeted enrichment and isolation program must be undertaken followed, possibly, by culture efficacy improvement. Microbial community process enhancement can then be gained by comprehensive characterization of the culturable and total populations. For all species, support medium attachment is critical and this is considered prior to filtration optimization by water content, pH, temperature, loadings, and nutrients manipulation. Finally, to negate discharge of fungal spores, and/or archaeal and/or bacterial cells, capture/destruction technologies are required to enable exploitation of the mineralization product CO2.

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“…NTP upstream processes in combination with biofilters were investigated for treatments of limonene [35], mixtures of terpenes, chlorobenzene, trichloromethane, phenol and odor [36], mixtures of ethanol, ethyl acetate, benzene, toluene and octane [37], as well as mixtures of toluene, n-heptane, p-xylene, ethylbenzene, and benzene [26]. Combinations of NTP and a biotrickling filter were used in the treatment of dimethyl disulfide (DMDS) [38], chlorobenzene [39], 1,2-dichloroethane [40], butanone [41], 3-pentanone [41], benzene [41], toluene [41], ethylbenzene [41], n-hexane [41], methyl tert-butyl ether (MTBE) [41], mixtures of 1,2-dichloroethane and n-hexane [40], mixtures of toluene, p-xylene and ethylene [42], mixtures of styrene and o-xylene [43] or mixtures of n-butanol, 2-butoxyethanol and odor [22].…”

Section: Introductionmentioning

confidence: 99%

Styrene and Bioaerosol Removal from Waste Air with a Combined Biotrickling Filter and DBD–Plasma System

et al. 2020

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A combined system of a biotrickling filter and a non-thermal plasma (NTP) in a downstream airflow was operated for 1220 days for treatment of emissions of styrene and secondary emissions of germs formed in the biological process. The biotrickling filter was operated at variable inlet concentrations, empty bed residence times (EBRT), type and dosage of fertilizers, irrigation densities, and starvation periods, while dielectric barrier discharge and corona discharge were operated at different specific input energy levels to achieve optimal conditions. Under these conditions, efficiencies in the removal of volatile organic compounds (VOCs), germs and styrene of 96–98%, 1–4 log units and 24.7–50.1 g C m−3 h−1 were achieved, respectively. Fluid simulations of the NTP and a germ emission-based clocking of the discharge reveal further energy saving potentials of more than 90%. The aim of an energy-efficient elimination of VOCs through a biotrickling filter and of secondary germ emissions by a NTP stage in a downstream airflow for potential re-use of purified waste gas as process gas for industrial application was successfully accomplished.

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Increase of the purification efficiency of biofilters by the use of a complementary ionisation step

Cited by 9 publications

References 2 publications

Biological Waste Air and Waste Gas Treatment: Overview, Challenges, Operational Efficiency, and Current Trends

Biological Waste Air and Waste Gas Treatment: Overview, Challenges, Operational Efficiency, and Current Trends

Waste Gas Biofiltration: Advances and Limitations of Current Approaches in Microbiology

Styrene and Bioaerosol Removal from Waste Air with a Combined Biotrickling Filter and DBD–Plasma System

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