Effect of inorganic nutrients on the acclimation period preceding mineralization of organic chemicals in lake water

Jones, Stephen H.; Alexander, Martin

doi:10.1128/aem.54.12.3177-3179.1988

Cited by 10 publications

(3 citation statements)

References 9 publications

(9 reference statements)

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“…Phosphate or nitrogen was a limiting factor for the degradation of DCP at low concentrations in the groundwater. These observations coincide with the study done by Jones & Alexander,6) who have reported that a rapid mineralization of p-nitrophenol (PNP) by Flavobacteriurn sp. proceeded when sterile lake water was amended with 10mM of P04-P, and initiation of mineralization was delayed when water samples received zero, 0.01, or 0.1mM P04-P.…”

Section: Discussionsupporting

confidence: 92%

Effects of Mineral Nutrients on the Degradation of 2, 4-Dichlorophenol at Low Concentrations by Microbial Community and Bacterial Isolates

Martani

昌之

1991

J. Pestic. Sci.

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Microbial community in a groundwater sample did not degrade 0.1ug Carbon/ml of 2,4-dichlorophenol (DCP). DCP was degraded when the water sample was amended with phosphate or ammonium nitrate. The density of the degrader, as measured by the most probable number (MPN) method using a DCP-spiked mineral-salt (MS) medium, increased to 104-105 cell/ml irrespective of the amendment with the mineral nutrients. These results suggested that phosphate or ammonium nitrate was required by the DCP degrader not for growth but for the expression of an ability to degrade 0.1ug DCP-C/ml in the groundwater. Three bacterial isolates from the groundwater showed different mineral requirements for expressing the ability to degrade 0.1ug DCP-C/ml. Namely, the pure culture of one isolate degraded 0.1ug DCP-C/ml in filter-sterilized groundwater only when amended with ammonium nitrate; another isolate degraded DCP partially when amended with phosphate; and the other isolate degraded DCP irrespective of amendment with the mineral nutrients. The cell density of each isolate increased to 106-107 cell/ml irrespective of the amendment with these mineral nutrients. Possible reasons for the discrepancy in the response to these mineral nutrients in the degradation of DCP by the microbial community and by the bacterial isolates are discussed.

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Section: Discussionsupporting

confidence: 92%

Effects of Mineral Nutrients on the Degradation of 2, 4-Dichlorophenol at Low Concentrations by Microbial Community and Bacterial Isolates

Martani

昌之

1991

J. Pestic. Sci.

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“…Compared to these fresh waters, the half-life of 4-nitrophenol in sea water may be longer, and the experimental half-life may range between 13 and 21 days (Bourquin et al 1982;Bourquin 1984;. The rate and extent of degradation of 4-nitrophenol in natural water also depend on the initial concentration of the substance, the nature and concentration of nutrients, the activities of the organisms, and the presence or absence of predators or inhibitors of degrader organisms (Hoover et al 1986;Jones and Alexander 1988;Rubin and Alexander 1983;Wiggins and Alexander 1988;Zaidi et al 1989). Other investigators have found that the rate of biodegradation of nitrophenols may follow complex kinetics and the derivation of a half-life based on simple first-order kinetics in such cases would not be appropriate Alexander 1986, 1988;Zaidi et al 1988).…”

Section: Watermentioning

confidence: 99%

Glauconite as a sorbent of 4-nitrophenol

Makhova¹,

Doronin²

2021

CBE

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The sorption properties of glauconite from Beloozersk deposits (Saratov region) for 4-nitrophenol (4-NF) have been investigated. The effect of glauconite on pH and 4-nitrophenol structure in solution is estimated. It is shown that glauconite increases pH of aqueous environment to 8 and shifts the equilibrium towards the formation of aci-form 4-NF. The conditions of sorption 4-NF by glauconite are established: the sorption time 20 min, the mass of the sorbent (0.50–1.0) g. The isotherm of sorption by 4-NF glauconite has been obtained; its interpretation is given using the Langmuir and Freundlich equations. The main quantitative sorption characteristics of glauconite such as recovery (R = 64%), distribution coefficient (D = 88) and the Langmuir and Freundlich constants for 4-nitrophenol are calculated. These experiments indicate the potential use of the glauconite from Beloozersk deposits (Saratov region) for 4-NP from various waters.

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“…Effect of nutrients on acclimation [9,10] Acclimation processes for individual or classes Effect of chemical concentration [12,14,15] Biodegradation of dissolved and adsorbed chem-Importance of attached or unattached bacteria…”

mentioning

confidence: 99%

Untitled

1993

Enviro Toxic and Chemistry

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Effect of inorganic nutrients on the acclimation period preceding mineralization of organic chemicals in lake water

Cited by 10 publications

References 9 publications

Effects of Mineral Nutrients on the Degradation of 2, 4-Dichlorophenol at Low Concentrations by Microbial Community and Bacterial Isolates

Effects of Mineral Nutrients on the Degradation of 2, 4-Dichlorophenol at Low Concentrations by Microbial Community and Bacterial Isolates

Glauconite as a sorbent of 4-nitrophenol

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