Effectiveness of Potassium Ferrate (K2FeO4) for Simultaneous Removal of Heavy Metals and Natural Organic Matters from River Water

Lim, Mihee; Kim, Myoung-Jin

doi:10.1007/s11270-009-0302-7

Cited by 41 publications

(15 citation statements)

References 37 publications

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“…The applicability of ferrate for removal of heavy metals (Lim et al 2010), cyanide (Lee et al 2009) , hydrogen sulfide (Sharma et al 1997), ammonia (Sharma et al 1998), arsenic (Lee et al 2003) or organic contaminants e.g. biphenol-A (Li et al 2008), carbohydrates (Sharma et al 2012), phenol and chlorophenols (Graham et al 2004), pharmaceutical residues (Sharma et al 2006), personal care products (Yang et al 2012) was demonstrated in the literature.…”

Section: Introductionmentioning

confidence: 99%

Trichloroethylene removal from water by ferrate treatment

Dobosy

Vizsolyi

Varga

et al. 2016

Microchemical Journal

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In this study trichloroethylene (TCE) removal from model solutions and groundwater by ferrate treatment was investigated applying different initial TCE concentrations, ferrate dosages and pH values. TCE concentrations were measured both in the vapor and liquid phases of water samples with head space gas chromatograph mass spectrometer (HS/GC-MS) and solid phase micro-extraction gas chromatograph mass spectrometer (SPME/GC-MS) systems, respectively. Analytical data obtained by these methods were in good agreement and the deviations changed in the range of 1 and 7%. The optimum pH value for the ferrate treatment was pH=7. Applying ferrate in concentration of 50 mg/L for treatment of model solutions with TCE concentration of 0.1 and 1.0 mg/L (FeO 4 2-/TCE molar ratios 500 and 50), the removal efficiency values were 97 and 74%, respectively. However, in case of groundwater having the same TCE concentrations but additionally 28 mg/L organic carbon content, the removal efficiency decreased to 42 and 36%. It means the necessary ferrate dosage considerable depends on the chemical composition of contaminated groundwater to be treated.

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Section: Introductionmentioning

confidence: 99%

Trichloroethylene removal from water by ferrate treatment

Dobosy

Vizsolyi

Varga

et al. 2016

Microchemical Journal

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“…Several methods for the removal of heavy metal ions from water exist, such as chemical oxidation and reduction, membrane separation, liquid extraction, ion exchange, electrolytic treatment, electroprecipitation, coagulation, floatation, hydroxide and sulfide precipitation, ultrafiltration, and electrodialysis to name a few. However, these methods are often cost intensive, not suitable for drinking water treatment in rural areas or not applicable on a large scale.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Cellulose for Water Purification, Antimicrobial Applications, and Sensors

Bethke

Palantöken

Andrei

et al. 2018

Adv Funct Materials

215

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As the most abundant natural polymer, cellulose presents a unique advantage for large-scale applications. To fully unlock its potential, the introduction of desired functional groups onto the cellulose backbone is required, which can be realized by either chemical bonding or physical surface interactions. This review gives an overview of the chemistry behind the state-of-the-art functionalization methods (e.g., oxidation, esterification, grafting) for cellulose in its various forms, from nanocrystals to bacterial cellulose. The existing and foreseeable applications of the obtained products are presented in detail, spanning from water purification and antibacterial action, to sensing, energy harvesting, and catalysis. A special emphasis is put on the interactions of functionalized cellulose with heavy metals, focusing on copper as a prime example. For the latter, its toxicity can either have a harmful influence on aquatic life, or it can be conveniently employed for microbial disinfection. The reader is further introduced to recent sensing technologies based on functionalized cellulose, which are becoming crucial for the near future especially with the emergence of the internet of things. By revealing the potential of water filters and conductive clothing for mass implementation, the near future of cellulose-based technologies is also discussed.not suitable for drinking water treatment in rural areas or not applicable on a large scale. Other methods involving materials which have high adsorption capacities for pollutants, for example activated charcoal have been explored. [27,28] Nevertheless, there are no universal adsorbents for all pollutants, meaning that superior alternatives are still required. In recent years, biodegradable adsorbents such as cellulose and chitosan have attracted much attention for the removal of heavy metals.In particular cellulose has a number of advantages, which include high abundance, low cost, easy access, nontoxicity and biodegradability. It is particularly suited for the removal of low concentrations of heavy metals which occur in contaminated ground or tap water. [26] Beyond the aspects of copper removal from water, in this review we indicate how the metal's increased toxicity for microbial life can present an advantage for medical applications. Moreover, we also take a closer look at further applications of functionalized cellulose, including catalysis and sensing, which can make a great impact regarding energy conversion and management. The inclusion of conductive cellulose sensors within the internet of things global network is of particular interest, since an accurate weather forecast can provide swift adjustments in the usage of the often intermittent renewable energy sources. In order to understand what confers functionalized cellulose its versatility for broad applications, we first exemplify the functionalization techniques on a molecular basis.

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“…Water pollution by heavy metals has become a public concern due to the development of high‐technology industries around the world . The long‐term intake of drinking water containing even low concentrations of heavy metals may cause fatal diseases by the accumulation of heavy metals in the internal organs of human body .…”

Section: Introductionmentioning

confidence: 99%

Humic and Fulvic Acids as Potentially Toxic Metal Reducing Agents in Water

Lalas

Athanasiadis

Dourtoglou

2018

CLEAN Soil Air Water

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Industrial activity has contributed to potentially toxic metal pollution in various ecosystems throughout the world. In this study, the ability of humic and fulvic acids (isolated from lignite with a simple, rapid, and inexpensive method) to reduce toxic metals’ concentration of contaminated water is examined. More specifically, the effect of these compounds is tested on water contaminated (at various concentrations) with Cd, Cr, Cu, Ni, and Pb. The determination is performed by inductively coupled plasma‐optical emission spectrometry. The maximum binding capacity is presented by fulvic acids in the following order Cr>Pb>Ni>Cu>Cd (97.8, 96.5, 95.4, 95.1, and 83.3%, respectively), while for humic acids it is Pb>Ni>Cr>Cu>Cd (81.3, 70.7, 68.6, 67.0, and 66.8%, respectively). The binding activity is also tested on water contaminated with two metals simultaneously. In these cases, the existence of two metals in water changes the reduction ability of humic and fulvic acids (positively or negatively).

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Effectiveness of Potassium Ferrate (K2FeO4) for Simultaneous Removal of Heavy Metals and Natural Organic Matters from River Water

Cited by 41 publications

References 37 publications

Trichloroethylene removal from water by ferrate treatment

Trichloroethylene removal from water by ferrate treatment

Functionalized Cellulose for Water Purification, Antimicrobial Applications, and Sensors

Humic and Fulvic Acids as Potentially Toxic Metal Reducing Agents in Water

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