Fluidized-bed denitrification of mining water tolerates high nickel concentrations

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Fluidized-bed denitrification of mining water tolerates high nickel concentrations. / Zou, G.; Papirio, S.; van Hullebusch, E. D.; Puhakka, J. A.

julkaisussa: Bioresource Technology, Vuosikerta 179, 01.03.2015, s. 284-290.

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Zou, G. ; Papirio, S. ; van Hullebusch, E. D. ; Puhakka, J. A. / Fluidized-bed denitrification of mining water tolerates high nickel concentrations. Julkaisussa: Bioresource Technology. 2015 ; Vuosikerta 179. Sivut 284-290.

Bibtex - Lataa

@article{e05919443e81453f917e69cde2726760,

title = "Fluidized-bed denitrification of mining water tolerates high nickel concentrations",

abstract = "This study revealed that fluidized-bed denitrifying cultures tolerated soluble Ni concentrations up to 500mg/L at 7-8 and 22°C. From 10 to 40mg/L of feed Ni, denitrification resulted in complete nitrate and nitrite removal. The concomitant reduction of 30mg/L of sulfate produced 10mg/L of sulfide that precipitated nickel, resulting in soluble effluent Ni below 22mg/L. At this stage, Dechloromonas species were the dominant denitrifying bacteria. From 60 to 500mg/L of feed Ni, nickel remained in solution due to the inhibition of sulfate reduction. At soluble 60mg/L of Ni, denitrification was partially inhibited prior to recover after 34days of enrichment by other Ni-tolerant species (including Delftia, Zoogloea and Azospira) that supported Dechloromonas. Subsequently, the FBR cultures completely removed nitrate even at 500mg/L of Ni. Visual Minteq speciation model predicted the formation of NiS, NiCO3 and Ni3(PO4)2, whilst only Ni3(PO4)2 was detected by XRD.",

keywords = "Denitrification, Denitrifying communities, Fluidized-bed reactor, Nickel, X-ray diffraction",

author = "G. Zou and S. Papirio and {van Hullebusch}, {E. D.} and Puhakka, {J. A.}",

year = "2015",

month = "3",

day = "1",

doi = "10.1016/j.biortech.2014.12.044",

language = "English",

volume = "179",

pages = "284--290",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "ELSEVIER SCI LTD",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Fluidized-bed denitrification of mining water tolerates high nickel concentrations

AU - Zou, G.

AU - Papirio, S.

AU - van Hullebusch, E. D.

AU - Puhakka, J. A.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - This study revealed that fluidized-bed denitrifying cultures tolerated soluble Ni concentrations up to 500mg/L at 7-8 and 22°C. From 10 to 40mg/L of feed Ni, denitrification resulted in complete nitrate and nitrite removal. The concomitant reduction of 30mg/L of sulfate produced 10mg/L of sulfide that precipitated nickel, resulting in soluble effluent Ni below 22mg/L. At this stage, Dechloromonas species were the dominant denitrifying bacteria. From 60 to 500mg/L of feed Ni, nickel remained in solution due to the inhibition of sulfate reduction. At soluble 60mg/L of Ni, denitrification was partially inhibited prior to recover after 34days of enrichment by other Ni-tolerant species (including Delftia, Zoogloea and Azospira) that supported Dechloromonas. Subsequently, the FBR cultures completely removed nitrate even at 500mg/L of Ni. Visual Minteq speciation model predicted the formation of NiS, NiCO3 and Ni3(PO4)2, whilst only Ni3(PO4)2 was detected by XRD.

AB - This study revealed that fluidized-bed denitrifying cultures tolerated soluble Ni concentrations up to 500mg/L at 7-8 and 22°C. From 10 to 40mg/L of feed Ni, denitrification resulted in complete nitrate and nitrite removal. The concomitant reduction of 30mg/L of sulfate produced 10mg/L of sulfide that precipitated nickel, resulting in soluble effluent Ni below 22mg/L. At this stage, Dechloromonas species were the dominant denitrifying bacteria. From 60 to 500mg/L of feed Ni, nickel remained in solution due to the inhibition of sulfate reduction. At soluble 60mg/L of Ni, denitrification was partially inhibited prior to recover after 34days of enrichment by other Ni-tolerant species (including Delftia, Zoogloea and Azospira) that supported Dechloromonas. Subsequently, the FBR cultures completely removed nitrate even at 500mg/L of Ni. Visual Minteq speciation model predicted the formation of NiS, NiCO3 and Ni3(PO4)2, whilst only Ni3(PO4)2 was detected by XRD.

KW - Denitrification

KW - Denitrifying communities

KW - Fluidized-bed reactor

KW - Nickel

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84919934975&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2014.12.044

DO - 10.1016/j.biortech.2014.12.044

M3 - Article

VL - 179

SP - 284

EP - 290

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -

TUTCRIS