Recent advances in the recovery of metals from waste through biological processes

Yu, Zhengsheng; Han, Huawen; Feng, Pengya; Zhao, Shuai; Zhou, Tuoyu; Kakade, Apurva; Kulshrestha, Saurabh; Majeed, Sabahat

doi:10.1016/j.biortech.2019.122416

Cited by 101 publications

(33 citation statements)

References 139 publications

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“…The biosorption efficiency and selectivity is strongly affected by the presence of other ions or organic pollutants due to competitive adsorption [ 112 ]. In Ag(I) and Cu(II) batch system biosorption an increased equilibrium time of 10 times (from 60 to 600 minutes) was recorded at higher copper initial concentration, but the equilibrium time for Cu (II) (75 min) was not affected by the silver initial concentration in kinetic experiments using brown algae waste [ 113 ].…”

Section: Microbial Biomass-based Biosorbentsmentioning

confidence: 99%

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

2021

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The use of biosorbents for the decontamination of industrial effluent (e.g., wastewater treatment) by retaining non-biodegradable pollutants (antibiotics, dyes, and heavy metals) has been investigated in order to develop inexpensive and effective techniques. The exacerbated water pollution crisis is a huge threat to the global economy, especially in association with the rapid development of industry; thus, the sustainable reuse of different treated water resources has become a worldwide necessity. This review investigates the use of different natural (living and non-living) microbial biomass types containing polysaccharides, proteins, and lipids (natural polymers) as biosorbents in free and immobilized forms. Microbial biomass immobilization performed by using polymeric support (i.e., polysaccharides) would ensure the production of efficient biosorbents, with good mechanical resistance and easy separation ability, utilized in different effluents’ depollution. Biomass-based biosorbents, due to their outstanding biosorption abilities and good efficiency for effluent treatment (concentrated or diluted solutions of residuals/contaminants), need to be used in industrial environmental applications, to improve environmental sustainability of the economic activities. This review presents the most recent advances related the main polymers such as polysaccharides and microbial cells used for biosorbents production; a detailed analysis of the biosorption capability of algal, bacterial and fungal biomass; as well as a series of specific applications for retaining metal ions and organic dyes. Even if biosorption offers many advantages, the complexity of operation increased by the presence of multiple pollutants in real wastewater combined with insufficient knowledge on desorption and regeneration capacity of biosorbents (mostly used in laboratory scale) requires more large-scale biosorption experiments in order to adequately choose a type of biomass but also a polymeric support for an efficient treatment process.

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Section: Microbial Biomass-based Biosorbentsmentioning

confidence: 99%

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

2021

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“…Bioleaching consists in the extraction of metals from their ores using living organisms [ 74 ]. This technology has been extensively studied in order to enhance the metal recovery from many different solid matrixes polluted with metals [ 75 , 76 , 77 , 78 , 79 , 80 , 81 ]. Therefore, the coupling of bioleaching with electrodeposition has been extensively evaluated to recover copper from printed circuit boards, obtaining very high copper purities in the final deposits and metal recoveries ranging from 75.8% to 92.85% [ 82 , 83 , 84 ].…”

Section: Integration Of Electrodeposition With Other Processesmentioning

confidence: 99%

An Old Technique with A Promising Future: Recent Advances in the Use of Electrodeposition for Metal Recovery

Delgado¹,

Fernández-Morales²,

Llanos³

2021

Molecules

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Although the first published works on electrodeposition dates from more than one century ago (1905), the uses of this technique in the recovery of metals are attracting an increasing interest from the scientific community in the recent years. Moreover, the intense use of metals in electronics and the necessity to assure a second life of these devices in a context of circular economy, have increased the interest of the scientific community on electrodeposition, with almost 3000 works published per year nowadays. In this review, we aim to revise the most relevant and recent publications in the application of electrodeposition for metal recovery. These contributions have been classified into four main groups of approaches: (1) treatment and reuse of wastewater; (2) use of ionic liquids; (3) use of bio-electrochemical processes (microbial fuel cells and microbial electrolysis cells) and (4) integration of electrodeposition with other processes (bioleaching, adsorption, membrane processes, etc.). This would increase the awareness about the importance of the technology and would serve as a starting point for anyone that aims to start working in the field.

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“…Modern science with innovative technology generates an enormous amount of electrical and electronic waste materials and it turns out to be a serious environmental issue [ 1 , 2 ]. The increased production of modern electronic devices has accelerated the generation of an earliest electronic waste beyond measure [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Recovery of valuable metals from waste printed circuit boards using organic acids synthesised by Aspergillus niveus

Krishnamoorthy

Gnanasekaran²,

Dhandapani

2021

IET Nanobiotechnology

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Organic acids such as citric acid, itaconic acid and oxalic acid synthesised by Aspergillus niveus were used for the bioleaching of metals from waste printed circuit boards. Bioleaching of valuable metals was performed in one-step, two-steps and spent medium approaches using A. niveus. In the absence of waste printed circuit boards (WPCBs), the dry cell weight of A. niveus was higher when compared with the presence of WPCBs. Variations in the dry cell weight were observed for the presence of different particle sizes. The increase in itaconic acid and oxalic acid synthesis was found at a reduced particle size (60-80 mesh) and reached the maximum titre of itaconic acid (22.35 � 0.87 mM) and oxalic acid (12.75 � 0.54 mM) in 12 days during the two-step bioleaching. The maximum recovery of 75.66% Zn, 73.58% Ni and 80.25% Cu from WPCBs was achieved in 15 days in two-step leaching with particle sizes of the mesh being 60-80. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Recent advances in the recovery of metals from waste through biological processes

Cited by 101 publications

References 139 publications

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

An Old Technique with A Promising Future: Recent Advances in the Use of Electrodeposition for Metal Recovery

Recovery of valuable metals from waste printed circuit boards using organic acids synthesised by Aspergillus niveus

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