Semicontinuous and continuous degradation of phenol by Pseudomonas putida P8 adsorbed on activated carbon

Ehrhardt, H.; Rehm, H. J.

doi:10.1007/bf00256224

Cited by 70 publications

(34 citation statements)

References 9 publications

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“…In these experiments much active biomass that quickly degraded phenol was present in the reactor, so adsorption of phenol by the activated carbon could not occur. Comparable results were reported by Ehrhardt and Rehm (1989).…”

Section: Discussionsupporting

confidence: 77%

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Degradation of phenol by a defined mixed culture immobilized by adsorption on activated carbon and sintered glass

Mörsen¹,

Rehm

1990

Appl Microbiol Biotechnol

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A defined mixed culture of the yeast Cryptococcus elinovii H1 and the bacterium Pseudomonas putida P8 was immobilized by adsorption on activated carbon and sintered glass, respectively. Depending on its adsorption capacity for phenol the activated carbon system could completely degrade 17 g/l in batch culture, whereas the sintered glass system was able to degrade phenol up to 4 g/1. During semicontinuous degradation of phenol (1 g/l) both systems reached constant degradation times with the fourth batch that lasted 8 h when using the activated carbon system and 10 h in the sintered glass system. In the course of continuous degradation of phenol the activated carbon system reached a m a x i m u m degradation rate of 9.2 g 1-1 d a y -1 compared to 6.4 g 1-1 d a y -1 degraded by the sintered glass system. 2-Hydroxymuconic acid semialdehyde could be identified and quantitatively determined as a metabolite of phenol degradation by P. putida P8. Increased membrane permeability under the influence of phenol was demonstrated by the examination of K + efflux from P. putida PS.

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Section: Discussionsupporting

confidence: 77%

“…These biocatalysts were used to degrade phenol in batch culture; 17 g/1 could be completely degraded only by the mixed culture (Mt~rsen and Rehm 1987). P. putida P8 adsorbed on activated carbon D 45/2 reached a m a x i m u m degradation rate of 8.5 g 1-1 day -1 during continuous degradation of phenol (Ehrhardt and Rehm 1989).…”

Section: Introductionmentioning

confidence: 99%

Degradation of phenol by a defined mixed culture immobilized by adsorption on activated carbon and sintered glass

Mörsen¹,

Rehm

1990

Appl Microbiol Biotechnol

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“…A similar phenomenon was reported by Ehrhardt and Rehm (1985), Morsen and Rehm (1987), Ehrhardt and Rehm (1989), Morsen and Rehm (1990) and Khaled et al (1996) on activated carbon. The degradation of toxic compounds by bacteria culture immobilized on activated carbon has been reported as a combination of physical adsorption and biological degradation (Ehrhardt and Rehm., 1985).…”

Section: Discussionsupporting

confidence: 88%

Biodegradation of Endosulfan by Klebsiella oxytoca KE-8 Immobilized on Activated Carbon

Jo¹,

Lee²,

Kim³

et al. 2010

Korean Journal of Environmental Agriculture

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Endosulfan degrading ability of(dry weight) degraded 22.18 ug ml -1 endosulfan within 5 days at pH 7.0, 30℃ in batch shake flask cultures. Also, we an experimented recycle packed bed column mode and continuous packed bed column mode for endosulfan degradation. Under optimum operation condition, the immobilized cells in a laboratory scale pack bed column with support beads were able to degrade endosulfan completely in defined minimal salt medium at a maximum rate of 129.6 ug ml -1 per day. Moreover, the endosulfan degradation activity could be demonstrated at 4℃ for one month without significant decrease in activity. Results of this study suggest that immobilized cells of Klebsiella oxytoca KE-8 might be applicable to endosulfan contaminated site.

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“…Examples are ethanol fermentation with Zymomonas mobilis (Weuster et al 1988), the production of glycerol (Hecker et al 1990) and L-leucine (Biichs 1988) and the degradation of phenol (Ehrhardt and Rehm 1989;M6rsen and Rehm 1990). The application of porous glass as a support matrix in large-scale reactors for anaerobic waste-water treatment was reported by Aivasidis (1989).…”

Section: Introductionmentioning

confidence: 99%

Influence of physicochemical bacterial surface properties on adsorption to inorganic porous supports

Krekeler¹,

Ziehr²,

Klein³

1991

Appl Microbiol Biotechnol

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The effect of the hydrophobicity and the electrostatic charge of bacterial cell surfaces on the initial phase of adsorption to inorganic porous supports with SiO2 or A1203 as the main components was investigated. The physicochemical surface properties of various Gram-positive and Gram-negative bacteria were characterized by water contact angle and zeta-potential measurements. The influence of microbial charge on adsorption was investigated by varying the ionic strength of the suspending liquid. The amount of Escherichia coli cells adsorbed to Siran and Bi 86 supports increased with increasing electrolyte concentration. The effect of cell surface hydrophobicity on the extent of adsorption was demonstrated at high ionic strength (0.15 M NaC1) where charge effects were reduced. The supports applied in this study promoted the adsorption of hydrophilic bacteria.

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Semicontinuous and continuous degradation of phenol by Pseudomonas putida P8 adsorbed on activated carbon

Cited by 70 publications

References 9 publications

Degradation of phenol by a defined mixed culture immobilized by adsorption on activated carbon and sintered glass

Degradation of phenol by a defined mixed culture immobilized by adsorption on activated carbon and sintered glass

Biodegradation of Endosulfan by Klebsiella oxytoca KE-8 Immobilized on Activated Carbon

Influence of physicochemical bacterial surface properties on adsorption to inorganic porous supports

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