Experimental Research on Adsorbents Preparation Made from Oily Sludge

Abstract:

The objective of this study was to prepare adsorbents from two kinds of oily sludge and evaluate their adsorption characteristics. The results showed that the optimum conditions of adsorbent made from JL sludge was using ZnCl₂ as activator, the concentration of activator was 0.5mol/L, solid-liquid ratio was 1:2, pyrolysis temperature was 550°C, staying time was 2h. The optimum conditions of adsorbent made from LH sludge was pyrolysis directly. Pyrolysis temperature was 650°C, staying time was 2h. The surface morphologies of two adsorbents were relatively rough and had irregular porous structure mainly in mesoporous. The iodine adsorption values of two adsorbents can reach 451.22mg/g and 376.48mg/g and the oil removal rate of simulated wastewater can reach 91.47% and 92.28% respectively.

• Periodical: Key Engineering Materials (Volume 703)
• Pages: 331-336
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.703.331
• Online since: August 2016
• Authors: Chao Tang*, Jiao Jiao Guan
• Keywords: Adsorbent, Adsorption Characteristic, Experiment Research, Oily Sludge

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