De-Inking of ONP Paper by using Different Surfactants: In Dissolved Air Flotation Process

  • Panda* S
  • et al.
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Abstract

Meeting the demand of paper and paper product requirement and at the same time decreasing the availability of fibrous raw materials, keeping an eye on cost effectiveness is challenging. Thus, recycling of paper is an alternative. Corrugated box, old newspapers and office waste papers are the sources of raw materials for paper and paper product industries. Deinking is an important step for recycling of old waste writing, printing and newsprint papers. The efficiency of ink separation in the process of waste paper recycling depends on the ink properties, kind of the additives, surfactants used, age of waste papers, the printing techniques and printing conditions. In general, deinking process consumes a large amount of chemicals which makes this method expensive, pollution intensive and even quality is compromised. In this study the effectiveness of surfactants like benzene dodecyl sulphonate, lauryl benzene sulphonate and sodium carbonate for cost effective deinking process by optimizing the chemical doses has been studied. The physical strength and optical properties of the paper after deinking was also explored. The surfactant better for both physical strength properties and optical properties of paper is identified to be the sodium dodecyl benzene sulfonate.

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Panda*, S. N., & Biswal, S. K. (2020). De-Inking of ONP Paper by using Different Surfactants: In Dissolved Air Flotation Process. International Journal of Recent Technology and Engineering (IJRTE), 8(5), 4609–4613. https://doi.org/10.35940/ijrte.e6919.018520

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