Sulfate reduction at low pH in organic wastewaters

S.I.C. Lopes

Research output: Thesisinternal PhD, WU

Abstract

The objective of the research described in this thesis was to investigate the operational window of dissimilatory sulfate reduction at low pH (6, 5 and 4) during the acidification of organic wastewaters. High sulfate reduction efficiencies at low pH are desirable for a more sustainable operation of acidification reactors in a two-phase wastewater treatment system, as pH control requires less caustic and/or the effluent recirculation from the second (methanogenic) reactor can be skipped. The low pH would also facilitate the removal of sulfide by stripping, as the fraction of gaseous sulfide increases with decreasing pH
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Buisman, Cees, Promotor
  • Lens, P., Co-promotor, External person
  • Capela, M.I., Co-promotor, External person
Award date23 Oct 2007
Place of Publication[S.l.]
Print ISBNs9789085047636
Publication statusPublished - 2007

Keywords

  • waste water treatment
  • ph
  • acidification
  • sulfates
  • anaerobic treatment
  • sulfate reduction

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