Immobilisation of Molybdenum in a Sulphate-Reducing Bioreactor

被引:1
|
作者
Kousi, Pavlina [1 ]
Strongyli, Dimitra-Artemis [1 ]
Tsakiridis, Petros E. [1 ]
Hatzikioseyian, Artin [1 ]
Remoundaki, Emmanouella [1 ]
机构
[1] Natl Tech Univ Athens, Sch Min & Met Engn, Zografou Campus,9 Iroon Polytech St, Zografos 15772, Greece
关键词
molybdate reduction; molybdenum disulphide; molybdenum chalcogenides; bioprecipitation; sulphate reduction; metal sulphides; REDUCTION; MOLYBDATE; DESULFOVIBRIO; RECOVERY; REMOVAL; INHIBITION; EXTRACTION; SEPARATION; SPECIATION; SULFIDE;
D O I
10.3390/separations11010009
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This work presents a biological remediation process for molybdenum-bearing wastewater which may lead to the fabrication of biogenic Mo chalcogenide particles with (photo)catalytic properties. The process is based on dissimilatory sulphate reduction, utilising sulphate-reducing bacteria (SRB), and reductive precipitation of molybdate which is the predominant species of molybdenum in oxygenated water/wastewater. The SRB culture was established in a biofilm reactor which was fed with synthetic solutions containing sulphate (17.7 mM), molybdate molybdenum (2 mM), divalent iron (1.7 mM) and ethanol as the carbon/electron donor. The performance of the bioreactor was monitored in terms of pH, sulphate and molybdenum (Mo(VI) and total) content. The presence of thiomolybdate species was studied by scanning UV-Vis absorbance of samples from the reactor outflow while the reactor precipitates were studied via electron microscopy coupled with energy dispersive spectrometry, X-ray diffractometry and laser light scattering. A molar molybdate/sulphate ratio of 1:12.5 proved effective for molybdate reduction and recovery by 76% in 96 h, whereas sulphate was reduced by 57%. Molybdenum was immobilised in the sulphidic precipitates of the bioreactor, presumably via two principal mechanisms: (i) microbially mediated reduction and precipitation, and (ii) thiomolybdate formation and sorption/incorporation into iron sulphides.
引用
收藏
页数:15
相关论文
共 50 条
  • [21] DIFFERENCES IN RESISTANCE OF SULPHATE-REDUCING BACTERIA TO INHIBITORS
    SALEH, AM
    JOURNAL OF GENERAL MICROBIOLOGY, 1964, 37 (01): : 113 - &
  • [22] Anaerobic biodegradation of crude oil under sulphate-reducing conditions leads to only modest enrichment of recognized sulphate-reducing taxa
    Sherry, A.
    Gray, N. D.
    Ditchfield, A. K.
    Aitken, C. M.
    Jones, D. M.
    Roeling, W. F. M.
    Hallmann, C.
    Larter, S. R.
    Bowler, B. F. J.
    Head, I. M.
    INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 2013, 81 : 105 - 113
  • [23] Sulphate reduction and zinc precipitation from wastewater by sulphate-reducing bacteria in an anaerobic moving-liquid/static-bed bioreactor
    Teiri, Hakimeh
    Rezaei, Mohsen
    Nazmara, Shahrokh
    Hajizadeh, Yaghoub
    DESALINATION AND WATER TREATMENT, 2016, 57 (53) : 25617 - 25626
  • [24] The possibilities of using sulphate-reducing bacteria for phenol degradation
    Rudzanova, Dominika
    Luptakova, Alena
    Macingova, Eva
    PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2019, 55 (05): : 1148 - 1155
  • [25] INFLUENCE OF SULPHATE-REDUCING BACTERIA ON THE CORROSION POTENTIAL OF IRON
    WANKLYN, JN
    SPRUIT, CJP
    NATURE, 1952, 169 (4309) : 928 - 929
  • [26] IRON SULPHIDE RATIOS IN CORROSION BY SULPHATE-REDUCING BACTERIA
    SPRUIT, CJP
    WANKLYN, JN
    NATURE, 1951, 168 (4283) : 951 - 952
  • [27] COUNTING OF SULPHATE-REDUCING BACTERIA IN MIXED BACTERIAL POPULATIONS
    ABDELMALEK, Y
    RIZK, SG
    NATURE, 1958, 182 (4634) : 538 - 538
  • [28] UTILISATION OF CATHODIC HYDROGEN BY SULPHATE-REDUCING BACTERIA.
    Hardy, J.A.
    1600, (18):
  • [29] Impact of sulphate-reducing bacteria on the performance of engineering materials
    Reza Javaherdashti
    Applied Microbiology and Biotechnology, 2011, 91 : 1507 - 1517
  • [30] Microbiology and Chemistry Interactions in a Biological Sulphate-Reducing Process
    Arnold, Mona
    Makinen, Jarno
    Salo, Marja
    Bomberg, Malin
    MINING MEETS WATER - CONFLICTS AND SOLUTIONS, 2016, : 1034 - 1041