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• Effectiveness Bleaching of Waste Cooking Oil Cleaning Using Nano-Montmorillonite Adsorbent

  Silvia Ningsih, Puji Wahyuningsih, Tisna Harmawan

  277-287

  2022-01-17

• Production and Characterization of Adsorbent from Oyster Shell (Crassostrea gigas) Using Physics and Chemical Activation with ZnCl2 and Its Application for Removal of Hexavalent Chromium

  Lia Handayani, Azwar Thaib, Nurhayati Nurhayati, Yayuk Astuti, Adi Darmawan

  329-341

  2020-12-30

• The Characterization of Oyster Shell (Crassostrea gigas) as Adsorbent in The Removal of Cr(VI) Ions. A Study of NaOH and H2SO4 Activation Effect

  Lia Handayani, Cut Rahmawati, Nurhayati Nurhayati, Yayuk Astuti, Adi Darmawan

  77-84

  2020-06-30