Evaluation of Ferrate(VI) as a conditioner for dewatering wastewater biosolids

Hyunook Kim, Yuhun Kim, Virender K. Sharma, Laura L. Mcconnell, Alba Torrents, Clifford P. Rice, Patricia Millner, Mark Ramirez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Land application of sludge/biosolids is a commonly used practice for final utilization. Therefore, adequate conditioning and stabilization of wastewater solids is very critical for safe land application. The addition of ferrate (FeO42-) has the potential to improve the dewaterablity of solids, destroy pathogenic organisms, and reduce certain endocrine disrupters. In this study, the dewaterbility and stabilization of thickened sludge treated with ferrate was evaluated under controlled laboratory conditions. To evaluate dewaterbility, three different techniques; belt-press, centrifugation, and vacuum filtration, were applied to dewater a mixture of solids. In addition, once biosoilds are generated, their safety and quality especially in terms of reduced endocrine disrupting compounds (EDCs) as well as pathogens become an important issue to the public. Therefore, the effectiveness of ferrate (FeO 42-) in disinfecting microorganisms and in oxidizing EDCs, i.e., Nonylphenols and polybrominated diphenyl ethers, is briefly discussed.

Original languageEnglish
Title of host publicationFerrates
Subtitle of host publicationSynthesis, Properties, and Applications in Water and Wastewater Treatment
PublisherAmerican Chemical Society
Number of pages13
ISBN (Print)9780841269613
StatePublished - 25 Jul 2008

Publication series

NameACS Symposium Series
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918


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