Bioremediation of chlorophenol containing simulated ground water by immobilized bacteria

Valo, R.; Häggblom, Max M.; Salkinoja‐Salonen, Mirja

doi:10.1016/0043-1354(90)90111-i

Cited by 56 publications

(29 citation statements)

References 21 publications

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“…To remove danger, mineralization of the chlorophenols should be promoted. Organisms capable of catalyzing mineralization, also under in-field conditions, have been isolated and described (29)(30)(31)(32)(33). In field studies we detected chloroanisols in saw mill soils at quantities usually lower than those of chlorophenols (18).…”

Section: Biotansformations Of Chlorophenols In Soilmentioning

confidence: 89%

Organic halogens in the environment: studies of environmental biodegradability and human exposure.

Salkinoja‐Salonen

Uotila

Jokela

et al. 1995

Environ Health Perspect

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Organic halogens from chlorobleaching of kraft pulp were not as biorecalcitrant as has been assumed. Fifty percent were removed during biotreatment of wastewater, and 50% of the remaining organohalogens faded in fresh water ecosystems in 200 to 400 days. Molecular size seemed not to hinder biodegradation up to sizes of approximately 2000 daltons. Anoxic biodegradation was of prime importance for halomineralization of pulp bleaching organohalogens but could also lead to toxic metabolites such as vinyl chloride from tri- and tetrachloroethene in anoxic soil. Indigenous soil microbes were unable to clean old organohalogen pollution but had converted chlorophenols into polymeric substances, chlorohumus, which were found bioaccumulable by earthworms in spite of the large (up to 5000 g/mole) molecular sizes. Because of the danger of formation of toxic metabolites, the biochemistry of the xenobiotic degradation must be elucidated before active bioremediation is practiced on polluted soil or water. Groundwater pollution by chlorophenols led to increased disease among the exposed population in one well-studied case. Two further cases of potential environmental health impact are described.

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Section: Biotansformations Of Chlorophenols In Soilmentioning

confidence: 89%

Organic halogens in the environment: studies of environmental biodegradability and human exposure.

Salkinoja‐Salonen

Uotila

Jokela

et al. 1995

Environ Health Perspect

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“…However, ordinary anaerobic sludge existed several shortcomings of loosing floc structure, poor sedimentation performance, less unit microbial content, low activity, and bacterial species loss vulnerable to environmental factors, such as pH value and temperature [16].…”

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confidence: 99%

Bioremoval of Tl (I) by PVA-Immobilized Sulfate-Reducing Bacteria

Zhang¹,

Li²,

Pang³

et al. 2017

Pol. J. Environ. Stud.

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“…[14][15][16]. Biological immobilization approaches involved with a gel-like medium that retains the SRB in a particular space have attracted increasing attention for their high efficiency, strong reactivity, and stability [17][18].…”

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confidence: 99%

Immobilizing Metal-Resistant Sulfate-Reducing Bacteria for Cadmium Removal from Aqueous Solutions

Zhang¹,

Li²,

Li³

et al. 2018

Pol. J. Environ. Stud.

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IntroductionOwing to the rapid development of industry, the resulting huge amount of wastewater containing heavy metals has posed a serious challenge to environmental protection. Among heavy metals, cadmium (Cd) is one of the most hazardous materials affecting the environment [1]. As an element of multiple industrial purposes, Cd is widely used in modern industries such as nickel-cadmium batteries, pigments, alloys, phosphate fertilizers, pesticides, textile operations, metal plating, Pol. J. Environ. Stud. Vol. 27, No. 6 (2018), 2851-2859 AbstractImmobilized sulfate-reducing bacteria (SRB) in polyvinyl alcohol (PVA)-sodium alginate matrix were applied as biosorbents to remove cadmium (Cd) from aqueous solutions. Multiple characterization techniques including scanning electron microscope (SEM)-energy dispersive spectrometer (EDS), and Fourier transform infrared (FT-IR) spectra indicate that immobilized beads provided a suitable microenvironment for SRB. Performance tests show that Cd removal was highly affected by pH value and temperature, with optimum temperature at 35ºC and pH value of 8.0. A pseudo second-order model was applied to describe the adsorption kinetic. FT-IR and x-ray photoelectron spectroscopy (XPS) analyses imply that biosorption, sulfide, and hydroxide precipitation are the main mechanisms for removing Cd. The immobilized SRB beads have great potential for remediating Cd-containing wastewater.

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Bioremediation of chlorophenol containing simulated ground water by immobilized bacteria

Cited by 56 publications

References 21 publications

Organic halogens in the environment: studies of environmental biodegradability and human exposure.

Organic halogens in the environment: studies of environmental biodegradability and human exposure.

Bioremoval of Tl (I) by PVA-Immobilized Sulfate-Reducing Bacteria

Immobilizing Metal-Resistant Sulfate-Reducing Bacteria for Cadmium Removal from Aqueous Solutions

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