Consideration of grain packing in granular iron treatability studies

Firdous, R.; Devlin, J.F.

doi:10.1016/j.jconhyd.2014.05.014

Cited by 10 publications

(10 citation statements)

References 68 publications

(84 reference statements)

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“…Furthermore, increasing the kinetics of these processes would extend the applicability of Fe 0 filters by decreasing the remediation time. Progress in understanding the relative importance of key operational parameters (particle size and particle size distribution, particle shape, thickness of the filter, water flow velocity) was also not satisfactorily [12,13]. For example, it is still not established that pure Fe 0 filters (100% Fe 0 ) are not sustainable [13] because volumetric expansion of all Fe 0 particles implies that complete clogging is just a matter of time.…”

Section: Introductionmentioning

confidence: 99%

Validating the efficiency of the MB discoloration method for the characterization of Fe 0 /H 2 O systems using accelerated corrosion by chloride ions

Tepong-Tsindé

Phukan

Nassi

et al. 2015

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Validating the efficiency of the MB discoloration method for the characterization of Fe 0 /H 2 O systems using accelerated corrosion by chloride ions

Tepong-Tsindé

Phukan

Nassi

et al. 2015

Chemical Engineering Journal

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“…Hundreds of articles contain expressions like 'to the best of the author's knowledge' in the introduction to rationalize the investigation of things that are known for more than one century [33][34][35]77,78]. Moreover, several authors have put various arguments forward to maintain that Fe 0 is an environmental reducing agent despite controversial views [8,[46][47][48][49][50][51][52]. This attitude runs the risk of derailing the project of establishing the science of Fe 0 remediation.…”

Section: Undermining the Scientific Knowledge-building Processmentioning

confidence: 99%

“…The rationale for their reported sustainability does not seem to have been discussed yet. Based on these observations and evidences that alternative views have been constantly refuted [8,[46][47][48][49][50] or belittled [51,52]. It is fair to argue that the Fe 0 remediation research has progressed on an unsustainable path [53].…”

Section: Introductionmentioning

confidence: 99%

Rescuing Fe0 remediation research from its systemic flaws

Noubactep¹,

Makota²,

Bandyopadhyay³

2017

Res Rev Insights

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The well-accepted assumption of metallic iron (Fe 0 ) acting as electron donor for environmental remediation has created an unstable domain of knowledge for the past 23 years. This assumption is discouraging some outstanding and prospective scientists from correctly interpreting their experimental results. Such a situation is a recipe for long-term decline. The critical situation cannot be solved with simplistic approaches. It is now imperative to develop an understanding to defend the difficulties of this assumption and re-orient Fe 0 mediated remediation research as a whole.

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“…In particular, the usefulness of mixing Fe 0 and inert (anthracite, pumice, sand) or reactive but non-expansive (Fe3O4, MnO2, TiO2) materials is still controversially discussed [125,127,128]. Furthermore, an empirical approach has been used to screen selected operational factors like grain sizes and grain size distributions [126], grain packing [129] or the mixture of Fe3O4 and external Fe II solutions [88][89][90]. This empirical approach is certainly costly but not necessarily effective [121][122][123].…”

Section: /H2o Systemmentioning

confidence: 99%

Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale

Tepong-Tsindé

Crane

Noubactep

et al. 2015

Water

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There are many factors to consider for the design of appropriate water treatment systems including: cost, the concentration and type of biological and/or chemical contamination, concentration limits at which contaminant(s) are required to be removed, required flow rate, level of local expertise for on-going maintenance, and social acceptance. An ideal technology should be effective at producing clean, potable water; however it must also be low-cost, low-energy (ideally energy-free) and require low-maintenance. The use of packed beds containing metallic iron (Fe 0 filters) has the potential to become a cheap widespread technology for both safe drinking water provision and wastewater treatment. for decentralized water treatment particularly in the developing world. A design for safe drinking water to a community of 100 people is also discussed as starting module. It is suggested that Fe 0 filters have the potential for significant worldwide applicability, but particularly in the developing world. The appropriate design of Fe 0 filters, however, is site-specific and dependent upon the availability of local expertise/materials.

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Consideration of grain packing in granular iron treatability studies

Cited by 10 publications

References 68 publications

Validating the efficiency of the MB discoloration method for the characterization of Fe 0 /H 2 O systems using accelerated corrosion by chloride ions

Validating the efficiency of the MB discoloration method for the characterization of Fe 0 /H 2 O systems using accelerated corrosion by chloride ions

Rescuing Fe0 remediation research from its systemic flaws

Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale

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