Dichloromethane removal from waste gases with a trickle-bed bioreactor

Hartmans, S.; Tramper, J.

doi:10.1007/bf00369060

Cited by 106 publications

(62 citation statements)

References 16 publications

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“…Prior to inoculation the perlite was soaked with mineral medium (Hartmans & Tramper 1991). Different unpolluted and BTEX-polluted soils (approx.…”

Section: Solid State-like Batchesmentioning

confidence: 99%

“…Each flask contained 25 ml of buffered (35 m K # HPO % \NaH # PO % ;2H # O, pH 7) mineral salts medium (Hartmans & Tramper 1991). Hydrocarbons were added up to an initial concentration of 0n5 m in the liquid media based on reported water\air partition coefficients (Mackay & Shiu 1981, Amoore & Hautala 1983.…”

Section: Growth Experiments In Liquid Culturementioning

confidence: 99%

“…Higher yields of toluene-grown mycelia were produced in 5 l Erlenmeyer flasks containing 0n5 l of mineral medium (Hartmans & Tramper 1991) and 0n02 % (w\v) of yeast extract. Toluene was supplied via a 5 ml toluene solution (5 % v\v in dibutyl phthalate) as described above.…”

Section: Preparation Of Fungal Cell Suspensionsmentioning

confidence: 99%

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Isolation and characterisation of fungi growing on volatile aromatic hydrocarbons as their sole carbon and energy source

Prenafeta-Boldú

Kuhn

Luykx

et al. 2001

Mycological Research

125

109

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“…Prior to inoculation the perlite was soaked with mineral medium (Hartmans & Tramper 1991). Different unpolluted and BTEX-polluted soils (approx.…”

Section: Solid State-like Batchesmentioning

confidence: 99%

Section: Growth Experiments In Liquid Culturementioning

confidence: 99%

See 1 more Smart Citation

Isolation and characterisation of fungi growing on volatile aromatic hydrocarbons as their sole carbon and energy source

Prenafeta-Boldú

Kuhn

Luykx

et al. 2001

Mycological Research

125

109

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“…An aerobic immersion percolating filter system, in contrast, lost > 80% DCM to the atmosphere (Winkelbauer & Kohler 1989). Waste gases have been treated in aerobic trickling-bed reactors and biofilters (Hartmans & Tramper 1991;Diks & Ottengraf 1991a, b, c).…”

Section: Introductionmentioning

confidence: 99%

Dichloromethane utilized by an anaerobic mixed culture: acetogenesis and methanogenesis

Stromeyer¹,

Winkelbauer²,

Kohler³

et al. 1991

Biodegradation

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Dichloromethane (8.9 mg/1) was eliminated from industrially polluted, anaerobic groundwater in a fixed-bed reactor (43 m 3) which was packed with activated charcoal and operated continuously for over three years. The elimination of dichloromethane over this period was some ten-fold in excess of the sorptive capacity of the charcoal, and the elimination (3.7 mg/h. [kg of charcoal]: residence time, 49 h) was tentatively attributed to deha]ogenative microorganisms immobilized on the charcoal. Anaerobic enrichment cultures, with dichloromethane as the sole added source of carbon and energy, were inoculated with material from the reactor. Reproducibly complete substrate disappearance in subcultures was observed when traces of groundwater (1%) or yeast extract (0.01%) were supplied. Fed-batch experiments under an atmosphere of CO2 plus N2 led to the conversion in 11 days of 11 mM dichloromethane to 3 mM acetate and 2 mM methane, with a growth yield of 0.4 g of protein/mol of dichloromethane; insignificant amounts (< 1/zM) of chloromethane accumulated. Methanogenesis could be inhibited by 50 mM 2-bromoethane sulfonate without any effect on the dehalogenation rate. The maximum dehalogenation rate was 0.13 mmol dichloromethane/h-1 (2.6 mkat/ kg of protein).

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“…strain T1 (ATCC MYA-2335, CBS 110553) was isolated as previously described (Prenafeta Boldú et al 2001). During the present investigation, this organism was routinely maintained at 4 • C on mineral medium (Hartmans & Tramper 1991) agar slants supplemented with 2% glucose.…”

Section: Fungal Strainmentioning

confidence: 99%

Bioremediation of BTEX Hydrocarbons: Effect of Soil Inoculation with the Toluene-Growing Fungus Cladophialophora Sp. Strain T1

Prenafeta-Boldú

Ballerstedt²,

Gerritse³

et al. 2004

Biodegradation

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The biodegradation of a mixture of benzene, toluene, ethylbenzene, xylene, (BTEX) and methyl-tert-butyl ether (MTBE) was studied in soil microcosms. Soil inoculation with the toluene-metabolising fungus Cladophialophora sp. strain T1 was evaluated in sterile and non-sterile soil. Induction of biodegradation capacity following BTEX addition was faster in the soil native microflora than in axenic soil cultures of the fungus. Toluene, ethylbenzenes, and the xylenes were metabolized by the fungus but biodegradation of benzene required the activity of the indigenous soil microorganisms. MTBE was not biodegraded under the tested environmental conditions. Biodegradation profiles were also examined under two pH conditions after a long term exposure to BTEX. At neutral conditions the presence of the fungus had little effect on the intrinsic soil biodegradation capacity. At an acidic pH, however, the activity of the indigenous degraders was inhibited and the presence of Cladophialophora sp. increased significantly the biodegradation rates of toluene and ethylbenzene. Comparison of the BTEX biodegradation rates measured in soil batches combining presence and absence of indigenous degraders and the fungal inoculum indicated that no severe antagonism occurred between the indigenous bacteria and Cladophialophora sp. The presence of the fungal inoculum at the end of the experiments was confirmed by PCR-TGGE analysis of small subunits of 18S rDNA.

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Dichloromethane removal from waste gases with a trickle-bed bioreactor

Cited by 106 publications

References 16 publications

Isolation and characterisation of fungi growing on volatile aromatic hydrocarbons as their sole carbon and energy source

Isolation and characterisation of fungi growing on volatile aromatic hydrocarbons as their sole carbon and energy source

Dichloromethane utilized by an anaerobic mixed culture: acetogenesis and methanogenesis

Bioremediation of BTEX Hydrocarbons: Effect of Soil Inoculation with the Toluene-Growing Fungus Cladophialophora Sp. Strain T1

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