Vibro-electrostatic separation of plastic mixtures (2 nd report, plastic mixtures of three kinds of components)

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2 Citations (Scopus)

Abstract

The separation of mixture consisting of three kinds of plastic was studied experimentally and analytically. The principle behind the separation technique is based on the difference in Coulomb force acting on the plastic particles after triboelectric charging. The mixture is charged by friction in a mixer and is separated in a vibratory feeder equipped with two plate electrodes. The separation tests were performed on a sample containing polyvinylchloride (PVC), polyethylene terephthalate (PET) and polystyrene (PS). The charging distribution of plastic particles was measured. An analytical solution is provided to estimate the recovery of plastics. The influence of electric field strength and tribocharging time on the separation efficiency was investigated. It is shown that for several kinds of plastic mixtures it is possible to obtain high purity and recovery of plastics.

Original languageEnglish
Pages (from-to)2180-2186
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume71
Issue number7
Publication statusPublished - 2005 Jul
Externally publishedYes

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Electrostatics
Plastics
Recovery
Polyethylene terephthalates
Polystyrenes
Electric fields
Friction
Electrodes

Keywords

  • Electrostatic Separation
  • Environmental Engineering
  • Frictional Vibration
  • Materials Handling Equipment
  • Nonlinear Vibration
  • Plastic Waste
  • Recycling

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "The separation of mixture consisting of three kinds of plastic was studied experimentally and analytically. The principle behind the separation technique is based on the difference in Coulomb force acting on the plastic particles after triboelectric charging. The mixture is charged by friction in a mixer and is separated in a vibratory feeder equipped with two plate electrodes. The separation tests were performed on a sample containing polyvinylchloride (PVC), polyethylene terephthalate (PET) and polystyrene (PS). The charging distribution of plastic particles was measured. An analytical solution is provided to estimate the recovery of plastics. The influence of electric field strength and tribocharging time on the separation efficiency was investigated. It is shown that for several kinds of plastic mixtures it is possible to obtain high purity and recovery of plastics.",
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AB - The separation of mixture consisting of three kinds of plastic was studied experimentally and analytically. The principle behind the separation technique is based on the difference in Coulomb force acting on the plastic particles after triboelectric charging. The mixture is charged by friction in a mixer and is separated in a vibratory feeder equipped with two plate electrodes. The separation tests were performed on a sample containing polyvinylchloride (PVC), polyethylene terephthalate (PET) and polystyrene (PS). The charging distribution of plastic particles was measured. An analytical solution is provided to estimate the recovery of plastics. The influence of electric field strength and tribocharging time on the separation efficiency was investigated. It is shown that for several kinds of plastic mixtures it is possible to obtain high purity and recovery of plastics.

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