Iron speciation and iron species transformation in activated sludge membrane bioreactors

XM Wang, TD Waite - Water research, 2010 - Elsevier
Iron speciation and iron species transformation were investigated in three membrane
bioreactors (MBRs) differing in feed iron concentration (and oxidation state) and the …

Iron and phosphorus speciation in Fe-conditioned membrane bioreactor activated sludge

H Wu, A Ikeda-Ohno, Y Wang, TD Waite - Water research, 2015 - Elsevier
Iron dosing of membrane bioreactors (MBRs) is widely used as a means of meeting effluent
phosphorus targets but there is limited understanding of the nature of iron and phosphorus …

The significance of microbial Fe (III) reduction in the activated sludge process

PH Nielsen - Water Science and Technology, 1996 - Elsevier
The significance of microbial Fe (III) reduction in activated sludge was evaluated with regard
to: its importance as electron acceptor; as a producer of acetate during anaerobic conditions; …

Microbial Fe (III) reduction in activated sludge

PH Nielsen, B Frølund, S Spring… - Systematic and applied …, 1997 - Elsevier
This study examined the concentration of iron, the rate of Fe (III) reduction and the numbers
of Fe (III)-reducing bacteria present in activated sludge from 10 different wastewater …

Process intensification in wastewater treatment: ferrous iron removal by a sustainable membrane bioreactor system

T Pekdemir, B Keskinler, E Yildiz… - Journal of Chemical …, 2003 - Wiley Online Library
Biooxidation of ferrous iron (Fe2+) from strongly acidic industrial wastewater with a high
Fe2+ content by Thiobacillus ferrooxidans in a packed bed reactor and subsequent removal …

Effects of Fe/S ratio on the kinetics and microbial ecology of an Fe (III)-dosed anaerobic wastewater treatment system

M Ahmed, O Lin, CM Saup, MJ Wilkins… - Journal of hazardous …, 2019 - Elsevier
Abstract Effects of Fe (III)/sulfate (Fe/S) ratio on organic carbon oxidation kinetics and
microbial ecology of a novel Fe (III)-dosed anaerobic wastewater treatment system were …

Impact of iron dosing of membrane bioreactors on membrane fouling

Y Wang, GL Leslie, TD Waite - Chemical Engineering Journal, 2014 - Elsevier
Flux decline in bench scale membrane bioreactors (MBRs) configured for chemical
phosphorous removal using ferric chloride increased as the molar Fe to P ratio increased …

Elucidating biochemical transformations of Fe and S in an innovative Fe (II)-dosed anaerobic wastewater treatment process using spectroscopic and phylogenetic …

D Deng, O Lin, A Rubenstein, JL Weidhaas… - Chemical Engineering …, 2019 - Elsevier
An innovative process consisting of Fe (II)-dosed anaerobic bioreactors and an oxidizing
basin was used to continuously treat a synthetic wastewater (COD/sulfate mass ratio 2: 1 …

Continuous ferric iron-dosed anaerobic wastewater treatment: Treatment performance, sludge characteristics, and microbial composition

M Ahmed, CM Saup, MJ Wilkins, LS Lin - Journal of Environmental …, 2020 - Elsevier
This study examined the treatment performance of an innovative Fe (III)-dosed anaerobic
bioreactor treating synthetic wastewater under varied Fe (III)/sulfate (Fe/S) ratios. The …

Iron reduction in activated sludge measured with different extraction techniques

H Rasmussen, PH Nielsen - Water research, 1996 - Elsevier
Pools of Fe (II) and Fe (tot) in activated sludge from a nutrient removal plant were
determined after extraction with HCl, oxalate or Ferrozine. Of a total Fe content in fresh …