Use of a liquid chemical waste to produce a clay–carbon adsorbent

✍ Scribed by Ivan L. Gee; Christopher J. Sollars; Geoffrey Fowler; Sabeha K. Ouki; Roger Perry

• Book ID: 101263266
• Publisher: Wiley (John Wiley & Sons)
• Year: 1998
• Tongue: English
• Weight: 306 KB
• Volume: 72
• Category: Article
• ISSN: 0268-2575
• DOI: 10.1002/(sici)1097-4660(199808)72:4<329::aid-jctb909>3.0.co;2-4

✦ Synopsis

The feasibility of producing an adsorbent from an alkaline aqueous tarry industrial waste has been investigated in this study. The inherent disadvantages of producing a solid carbonaceous material from a waste with its organic content in a dissolved state were overcome by neutralising the waste liquor to pH \ 2 in the presence of fullerÏs earth, Ðltering and producing a solid cake more suitable for thermal treatment. Optimisation of this procedure, followed by activation, produced clayÈcarbon adsorbents with surface areas of up to ZnCl 2 225 m2 g~1 capable of adsorbing 28% of phenol and 35% of 4-nitrophenol from 10 mM aqueous solution. The potential of this procedure in a beneÐcial waste reduction and re-use context are highlighted.