Immobilized-Cell Membrane Bioreactor for High-Strength Phenol Wastewater

Loh, Kai‐Chee; Chung, Tai‐Shung; Ang, Wei-Fern

doi:10.1061/(asce)0733-9372(2000)126:1(75)

Cited by 103 publications

(76 citation statements)

References 14 publications

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“…The use of immobilized cells offers several advantages over processes with suspended biomass, such as retention of a higher concentration of microorganism in the reactor, protection of cells from toxic substrates, and separation of suspended biomass from the effluent (Chung et al, 1998a(Chung et al, , 1998b2003;Keweloh and Heipieper, 1989). Several studies have revealed that immobilization of cells on polymeric membranes, particularly within the so-called hollowfiber membrane bioreactor (HFMBR), an extractive membrane bioreactor, could completely degrade phenol up to 3000 mg/L (Chung et al, 1998a(Chung et al, , 1998bLoh et al, 2000;Zhu et al, 2000). Extractive membrane bioreactor technology selectively extracts organic compounds from wastewaters by the use of a semipermeable membrane.…”

Section: Introductionmentioning

confidence: 99%

Process development for degradation of phenol by Pseudomonas putida in hollow‐fiber membrane bioreactors

Chung

Juang

2004

Biotech & Bioengineering

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The degradation of phenol (100-2800 mg/L) by cells Pseudomonas putida CCRC14365 in an extractive hollow-fiber membrane bioreactor (HFMBR) was studied, in which the polypropylene fibers were prewetted with ethanol. The effects of flow velocity, the concentrations of phenol, and the added dispersive agent tetrasodium pyrophosphate on phenol degradation and cell growth were examined. It was shown that about 10% of phenol was sorbed on the fibers at the beginning of the degradation process. The cells P. putida fully degraded 2000 mg/L of phenol within 73 h when the cells were immobilized and separated by the fibers. Even at a level of 2800 mg/L, phenol could be degraded more than 90% after 95-h operation. At low phenol levels (< 400 mg/L) where substrate inhibition was not severe, it was more advantageous to treat the solution in a suspended system. At higher phenol levels (> 1000 mg/L), however, such HFMBR-immobilized cells could degrade phenol to a tolerable concentration with weak substrate-inhibition effect, and the degradation that followed could be completed by suspended cultures due to their larger degradation rate. The process development in an HFMBR system was also discussed.

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Section: Introductionmentioning

confidence: 99%

Process development for degradation of phenol by Pseudomonas putida in hollow‐fiber membrane bioreactors

Chung

Juang

2004

Biotech & Bioengineering

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“…A titre d'exemple, les molécules traitées sont les suivantes : phénol (Livingston, 1993a ;Loh et al, 2000) ; 3-chloro-4-methylaniline (Splendiani et al, 2000) ; 3-4 dichloroaniline (Brookes et Livingston, 1993) ; 3-chloronitrobenzene (Livingston, 1993b) Dans les contacteurs membranaires liquide / liquide à deux phases, deux phases immiscibles ont une interface commune à chaque pore de la membrane ( Figure I-7). Ils sont utilisés pour éliminer de l'une des deux phases, un composé qui est plus soluble dans la deuxième phase, par exemple l'acide acétique extrait de l'eau par du xylène.…”

Section: Les Biofilms Sur Membrane De Type Extractifunclassified

Mass transfer in a membrane aerated biofilm

Picard¹,

Logette²,

Schrotter³

et al. 2012

Water Research

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“…Liberation of chloride ions in the medium can be considered as the result of mineralization of chlorinated compounds by the bacteria. Loh and Chung (2000) have reported an increase in chloride concentration in the medium due to breaking of chlorolignin compounds present in the waste water. Chandra et al (2009) have clearly evidenced the liberation of signifi cant amounts of chloride as the results of bacterial biodegradation (dechlorination) of pentachlorophenol and other chlorinated phenolic compounds present in pulp and paper mill effl uent.…”

Section: Removal Of 246 -Tcp In Sludgementioning

confidence: 99%

Degradation of 2,4,6-trichlorophenol by bacteria isolated from secondary sludge of a pulp and paper mill

Karn

Reddy

2012

J. Gen. Appl. Microbiol.

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Bacterial strains capable of degrading trichlorophenol (2,4,6-TCP) were isolated from the secondary sludge of a pulp and paper mill and were characterized. These isolates were identifi ed as Planococcus rifi etoensis (CL4) and Bacillus pumilus (CL5), based on their 16S rRNA sequence analysis. These isolates were able to grow and utilize 2,4,6-TCP as their source of carbon as well as energy. HPLC analysis and stoichometric release of chloride in the medium confi rmed the degradation ability of these isolates. Removal effi ciency of 2,4,6-TCP by these isolates was discovered to be high. They were able to remove 90% of 2,4,6-TCP when grown at a concentration of 600 mg L 1 . Inoculation of these bacteria completely removed 2,4,6-TCP within 2 weeks from the sludge of the pulp and paper mill when supplemented at the rate of 100 mg L 1 . Absorbable Organic Halogen (AOX) and Extractable Organic Halogen (EOX) were signifi cantly reduced by 63% and 70% respectively from the sludge due to inoculation of these bacteria. These isolates have high potential to remove 2,4,6-TCP and may be used for removal of 2,4,6-TCP from pulp paper mill waste.

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Immobilized-Cell Membrane Bioreactor for High-Strength Phenol Wastewater

Cited by 103 publications

References 14 publications

Process development for degradation of phenol by Pseudomonas putida in hollow‐fiber membrane bioreactors

Process development for degradation of phenol by Pseudomonas putida in hollow‐fiber membrane bioreactors

Mass transfer in a membrane aerated biofilm

Degradation of 2,4,6-trichlorophenol by bacteria isolated from secondary sludge of a pulp and paper mill

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