A Technique Method of Recycling Sylvite Zinc Plating Waste Liquid in Laboratory

Abstract:

It introduces a kind of technique method that recycling sylvite zinc plating waste liquid laboratory, involving the fields in electroplating and comprehensive utilization of waste liquid. It includes the following steps: first add hydrogen peroxide and activated carbon into waste liquid to remove the organic matter in it, and then reduce the solution’s temperature with refrigeration film, and filter out the solid contents. Add NaOH solid, NaHSO₃ into the solution, through chemical reactions, precipitate the heavy metal element, and finally get distilled water through distillation. It can make the recycled materials be reused, such as distilled water, boric acid, etc., and as to nonrecyclables, such as heavy metal ions (Cu²⁺, Cr³⁺), bury them deep that disposing harmless.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 290-293
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.290
• Online since: May 2014
• Authors: Lei Shi*, Da Yong Li
• Keywords: Harmless, Recycling, Sylvite Zinc Plating

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