High-voltage electrode position: a key factor of electrostatic separation efficiency

Aman, F.; Morar, R.; Köhnlechner, Rainer; Samuilă, A.; Dăscălescu, Lucian

doi:10.1109/ias.2002.1042742

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…3b that the grade and recovery decreased with the decrement of α. The reason for the deduction could be due to the reduction in the electric field strength that corresponds to the corona electrode angle [23]. Besides, it could be due to the fact that the corona electrode was placed too close to the feeder output.…”

Section: Effect Of Angular Position Of Electrodesmentioning

confidence: 99%

Characterizing a Novel Food Waste Recovery Process Using an Electrostatic Separator

Lai¹,

Lim²,

Teh³

et al. 2016

Pol. J. Environ. Stud.

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Organic food waste compounds in landfills can heavily pollute the soil, aquifer, and air, mainly due to anaerobic transformation. This paper presents the outcomes of research on the waste separation process and recovery of food waste (FW) using an electrostatic separator. The separation process sorts the charged bodies from the uncharged under an intensive electric field. We studied influences of various parameters such as applied voltage, rotation speed, and electrode angle on the separation process. Results revealed that separation efficiency relies on a uniform electric field and separator configuration. To our best knowledge, this is the first characterization report for food waste recovery using an electrostatic separator.

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Section: Effect Of Angular Position Of Electrodesmentioning

confidence: 99%

Characterizing a Novel Food Waste Recovery Process Using an Electrostatic Separator

Lai¹,

Lim²,

Teh³

et al. 2016

Pol. J. Environ. Stud.

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“…Elder and Yan concluded that the separation efficiency of mineral sand relies on the rotation speed, electrode configuration, temperature of granule, and other parameters [10]. Besides, Aman et al identified the supply potential as one of the key factors (in spite of electrode position) for metal recovery [11]. A study from Calin et al revealed that the different compositions may affect the separation results in separating the plastic mixtures [12].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Electrostatic Separation Process for Maximizing Biowaste Recovery Using Taguchi Method and ANOVA

Lai¹,

Lim²,

Teh³

2015

Pol. J. Environ. Stud.

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Municipal solid waste (MSW) is generally disposed of at landfills, and is highly attributed to its simplest and cheapest disposal procedures if compared to other approaches such as incineration [1]. Landfills bring negative impact to the environment due to leachate and biogas emission for biowaste [2]. A high amount of biowaste, particularly food waste, can be found in municipal waste. Approximately 45% of municipal solid wastes are organic food waste, followed by inorganic wastes such as plastics and glass [3]. A comprehensive study of food segregation is thus crucial. Segregation of food from waste results in a reduction of organic decomposition arising in a landfill and thus cuts down the generation of leachate. On one hand, the amount of landfill leachate could be lessened with the rare existence of organic matters. On the other hand, the segregated organic substances can be processed independently for methane gas generation, i.e. a green energy for biogas production [4]. Moreover, incineration of these inorganicfree substances produces less residue and toxic gas.Electrostatic separation provides an effective approach to recovering the reusable matter from solid wastes. It has been widely employed in applications involving the dry separation process, e.g. to recover conductors from non-conducting mixtures [5]. The separation process with a roll-type electrostatic separator sorts the charged bodies from the uncharged under an intensive electric field. It serves as an environmentally friendly way for recycling and reusing the resources without negatively impacting the surroundings [6].Pol. J. Environ. Stud. Vol. 24, No. 3 (2015), [1125][1126][1127][1128][1129][1130][1131] Original Research Optimization of Electrostatic Separation AbstractIn this study, the electrostatic separation process was employed to recover biowaste from waste mixtures. The recovered biowaste is a potential source of alternative renewable energy (e.g. biomass energy). Taguchi's methodology of experimental design was used for a robust design of both system and random factors. Robust design attempts to analyze the influence of respective factors towards the separation process and, meanwhile, limits the negative impact of the hard-to-control random factors. The effects of four factors, namely voltage level, rotation speed, water content, and particle size diameter were determined. It was noticeable that voltage level has a maximum effect (39.44%) on effective recovery of biowaste, followed by size diameter, water content, and rotation speed within design range. On the other hand, the minimal middling product was mostly influenced by the voltage level (79.78%). The water content has a negligible effect (0.78 %) if compared to rotation speed and size diameter. This paper concluded the appropriate operational range to have less error from the variations of noise.

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Corona Separation of Fly Ash

Das¹,

Köhnlechner²,

Aman³

et al. 2007

2007 IEEE Industry Applications Annual Meeting

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The possibility of converting fly-ash waste into a raw material for cement industry and other applications justify the investigation of new beneficiation techniques, including those using electrostatic forces. The aim of this paper was to demonstrate the effectiveness of a modified roll-type corona separator in the processing of this material. Three different laboratory models of such separators were evaluated. The analysis of the experimental results pointed out the main problems that should be solved prior to the industry application of corona separators for fly-ash beneficiation. A numerical model of fly-ash behaviour in roll-type corona separators enabled a thorough examination of the factors that influence the efficiency of the process and should be considered in the final design.

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High-voltage electrode position: a key factor of electrostatic separation efficiency

Cited by 7 publications

References 18 publications

Characterizing a Novel Food Waste Recovery Process Using an Electrostatic Separator

Characterizing a Novel Food Waste Recovery Process Using an Electrostatic Separator

Optimization of Electrostatic Separation Process for Maximizing Biowaste Recovery Using Taguchi Method and ANOVA

Corona Separation of Fly Ash

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