Abstract
The aim of this research was to study a new invention concept of ink removal processes by a combined effect of centrifugal force and electrical force. After deinking treatment with different voltage conditions, the effective residual ink concentration (ERIC) index from the test samples were lower than the operation without voltage input, indicating the applied electric force promotes deinking. With a certain operating time and ink coverage, the percentage weight loss of the pulp yield after deinking treatment has been lower by applying electrostatic force. From an analysis of variance (ANOVA), the optimum point of the process was obtained with low ink coverage of used paper, medium operating time and high voltage supply. This novel electrostatic separation is proved to be an effective method for paper recycling process since it has no chemical usage; thus, no requirement for further chemical separation.
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