Selective Recovery of Dissolved Metals from Mine Drainage Using Electrochemical Reactions

Park, Sang-Min; Shin, Su-Yeon; Yang, Jung‐Seok; Ji, Sangwoo; Baek, Kitae

doi:10.1016/j.electacta.2015.03.085

Cited by 61 publications

(22 citation statements)

References 30 publications

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“…It uses the concentration gradients phenomenon or the opposite which is reverse osmosis. There are different types of membranes that are used for mine water treatment including: ultrafiltration, nano-filtration, reverse osmosis, microfiltration and particle filtration [19,25,26].…”

Section: Membrane Technologiesmentioning

confidence: 99%

Environmental Contamination by Heavy Metals

Masindi¹,

Muedi²

2018

Heavy Metals

512

377

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The environment and its compartments have been severely polluted by heavy metals. This has compromised the ability of the environment to foster life and render its intrinsic values. Heavy metals are known to be naturally occurring compounds, but anthropogenic activities introduce them in large quantities in different environmental compartments. This leads to the environment's ability to foster life being reduced as human, animal, and plant health become threatened. This occurs due to bioaccumulation in the food chains as a result of the nondegradable state of the heavy metals. Remediation of heavy metals requires special attention to protect soil quality, air quality, water quality, human health, animal health, and all spheres as a collection. Developed physical and chemical heavy metal remediation technologies are demanding costs which are not feasible, time-consuming, and release additional waste to the environment. This chapter summarises the problems related to heavy metal pollution and various remediation technologies. A case study in South Africa mines were also used.

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Section: Membrane Technologiesmentioning

confidence: 99%

Environmental Contamination by Heavy Metals

Masindi¹,

Muedi²

2018

Heavy Metals

512

377

View full text Add to dashboard Cite

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“…AMD treatment using the alkaline barium calcium (ABC) desalination process was evaluated in a pilot scale study (Mulopo, 2015 Electrochemical methods were investigated to selectively recover dissolved metals from AMD (Park et al, 2015b). Fe(II) in anolyte was directly oxidized to Fe(III) on the electrode surface and the catholyte contained a high concentration of hydroxide generated by the cathodic reaction.…”

Section: Treatment Optionsmentioning

confidence: 99%

Mine Drainage Generation and Control Options

Wei

Rodak

Zhang

et al. 2016

Water Environment Research

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This review provides a snapshot of papers published in 2015 relevant to the topic of mine drainage generation and control options. The review is broken into 3 sections: Generation, Prediction and Prevention, and Treatment Options. The first section, mine drainage generation, focuses on the characterization of mine drainage and the environmental impacts. As such, it is broken into three subsections focused on microbiological characterization, physiochemical characterization, and environmental impacts. The second section of the review is divided into two subsections focused on either the prediction or prevention of acid mine drainage. The final section focuses on treatment options for mine drainage and waste sludge. The third section contains subsections on passive treatment, biological treatment, physiochemical treatment, and a new subsection on beneficial uses for mine drainage and treatment wastes.

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“…; Park et al . ). Little research has focussed on understanding the behaviour of precipitates to reduce overflow in the settling tanks (Patziger & Kiss ; Patziger ).…”

Section: Introductionmentioning

confidence: 97%

“…Precipitate purity can be reduced through co-precipitation of metals or by precipitate overflow into the next reaction tank. Various SP processes have been designed to minimise the overlap of optimal precipitation conditions for different metals (Sahinkaya et al 2009;Sampaio et al 2009;Lewis 2010;Sampaio et al 2010;Gharabaghi et al 2012;Park et al 2015). Little research has focussed on understanding the behaviour of precipitates to reduce overflow in the settling tanks (Patziger & Kiss 2015;Patziger 2016).…”

Section: Introductionmentioning

confidence: 99%

An investigation into precipitate behaviour for effective operation of settling tanks through selective precipitation

Bok

Yim

et al. 2018

Water & Environment J

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Selective precipitation (SP) is a promising remediation technique for mine drainage, minimising generation of waste sludge. The efficiency of SP is heavily dependent on how effectively precipitates fall out in a settling tank. In this research, the behaviour of iron precipitate was examined using a one dimensional column, with mine drainage pumped upwards through the settling tank. The behaviour was determined by a balance of precipitate settling and floating velocities. The experimental parameters affecting the vertical velocity of precipitates included mine drainage vertical velocity, column height and flocculant addition. The upper sediment accelerated precipitate flocculation in the input mine drainage, reducing turbidity of mine drainage discharge – a self‐filtering effect. For effective operation, discharge turbidity must be minimised and the top upper sediment edge maintained near the upper outlet. This was achieved by continuously removing precipitate from the lower outlet of the settling tank at the rate it was generated.

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Selective Recovery of Dissolved Metals from Mine Drainage Using Electrochemical Reactions

Cited by 61 publications

References 30 publications

Environmental Contamination by Heavy Metals

Environmental Contamination by Heavy Metals

Mine Drainage Generation and Control Options

An investigation into precipitate behaviour for effective operation of settling tanks through selective precipitation

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