Bioelectrochemical metal recovery from wastewater: A review

Wang, Heming; Ren, Zhiyong Jason

doi:10.1016/j.watres.2014.08.013

Cited by 376 publications

(138 citation statements)

References 96 publications

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“…Weak bases such as thiourea (CH 4 N 2 S) and thiosulfate (S 2 O 3 2-) were used to convert insoluble metals such Au and Ag from ores into soluble complexes, but this approach has not been tested on sludge (Mulchandani & Westerhoff, 2016). Furthermore, well-known pyrometallurgical, hydrometallurgical, electrochemical techniques have been used for extracting metals from industrial wastewater (Cui & Zhang, 2008;Wang & Ren, 2014). These methods may be used in tandem with ozonation to retrieve valuable materials from sludge, which will facilitate resource and energy recycling within the wastewater treatment loop.…”

Section: Recovery Of Other Resourcesmentioning

confidence: 99%

Holistic sludge management through ozonation: A critical review

Semblante

Hai

Dionysiou

et al. 2017

Journal of Environmental Management

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This paper critically reviews the multidimensional benefits of ozonation in wastewater treatment plants. These benefits include sludge reduction, removal of emerging trace organic contaminants (TrOC) from wastewater and sludge, and resource recovery from sludge. Literature shows that ozonation leads to sludge solubilisation, reducing overall biomass yield. Sludge solubilisation is primarily influenced by ozone dosage, which, in turn, depends on the fraction of ozonated sludge, ozone concentration, and sludge concentration. Additionally, sludge ozonation facilitates the removal of TrOCs from wastewater. On the other hand, by inducing cell lysis, ozonation increases the chemical oxygen demand (COD) and nutrient concentration of the sludge supernatant, which deteriorates effluent quality. This issue can be resolved by implementing resource recovery. Thus far, successful retrieval of phosphorous from ozonated sludge supernatant has been performed. The recovery of phosphorous and other resources from sludge could help offset the operation cost of ozonation, and give greater incentive for wastewater treatment plants to adapt this approach.

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Section: Recovery Of Other Resourcesmentioning

confidence: 99%

Holistic sludge management through ozonation: A critical review

Semblante

Hai

Dionysiou

et al. 2017

Journal of Environmental Management

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“…These applications are limited to specific largescale industries. The recent development of bioelectrochemical technology may provide a new approach for efficient metal recovery (Wang and Ren, 2014).…”

Section: Recovery Of High-value Byproductsmentioning

confidence: 99%

“…Apart from tangible economic benefits, improved nitrogen recovery would also reduce the nitrogen loading to the atmosphere (Sengupta et al, 2015). Although still in early stages of development, innovative technologies for recovering other valuable materials are also emerging, such as metal recovery via bioelectrochemical processes (Wang and Ren, 2014).…”

Section: Financing Opportunitiesmentioning

confidence: 99%

UN World Water Development Report 2017: "Wastewater: The untapped resource"

Meyer

2017

Preprint

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The 2017 edition of the United Nations World Water Development Report demonstrates how improved wastewater management generates social, environmental and economic benefits essential for sustainable development. In particular, the Report seeks to inform decision-makers, government, civil society and private sector, about the importance of managing wastewater as an undervalued and sustainable source of water, energy, nutrients and other recoverable by-products, rather than something to be disposed of or a nuisance to be ignored. The report’s title reflects the critical role that wastewater is poised to play in the context of a circular economy, whereby economic development is balanced with the protection of natural resources and environmental sustainability, and where a cleaner and more sustainable economy has a positive effect on the water quality. Pollution Quality Waste

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“…15 That is why, different metal nanoparticles, particularly the gold, cobalt, nickel and silver, have been synthesized. 16,17 Among these metals, gold and silver nanoparticles are much used in different fields because of their conductivity, inertness, surface plasmon resonance and bright color. 18 However, the application of gold at industrial scale is restricted because of its high cost.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structural characterization and catalytic application of citrate-stabilized monometallic and bimetallic palladium@copper nanoparticles in microbial anti-activities

Ullah

Khan²,

Sohail³

et al. 2017

IJN

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In this research work, copper (Cu), palladium (Pd) and their bimetallic palladium@ copper (Pd@Cu) nanoparticles were synthesized using trisodium citrate as a stabilizing agent using the known chemical reduction method. The synthesized Cu, Pd and Pd@Cu nanoparticles were characterized by the ultraviolet–visible spectroscopy, scanning electron microscopy and X-ray diffraction spectroscopy, respectively. The different volumes of trisodium citrate were used for the stability of synthesized monometallic Cu, Pd and bimetallic Pd@Cu nanoparticles. The synthesized Cu, Pd and their bimetallic Pd@Cu nanoparticles were used as catalysts for the reduction of 4-nitrophenol in the presence of NaBH 4 . The bimetallic Pd@Cu nanoparticles had efficient catalytic activities with a high rate constant (1.812 min −1 ) as compared to monometallic Cu (0.3322 min −1 ) and Pd (0.2689 min −1 ) nanoparticles, respectively. The correlation coefficient ( R 2 ) was found to be 0.99 for these three nanoparticles. Meanwhile, the effect of Cu, Pd and bimetallic Pd@Cu nanoparticles was checked on the physiology of specific different micro-organism strains. The bimetallic Pd@Cu nanoparticles reported the maximum resistance at maximum level the growth of bacterial strain and had observed a smooth antibacterial graph than the monometallic analogs.

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Bioelectrochemical metal recovery from wastewater: A review

Cited by 376 publications

References 96 publications

Holistic sludge management through ozonation: A critical review

Holistic sludge management through ozonation: A critical review

UN World Water Development Report 2017: "Wastewater: The untapped resource"

Synthesis, structural characterization and catalytic application of citrate-stabilized monometallic and bimetallic palladium@copper nanoparticles in microbial anti-activities

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