Waste Management 2001-01-01

Orange peel as an adsorbent in the removal of acid violet 17 (acid dye) from aqueous solutions.

R Sivaraj, C Namasivayam, K Kadirvelu

Index: Waste Manag. 21(1) , 105-10, (2001)

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Abstract

The effectiveness of orange peel in adsorbing Acid violet 17 from aqueous solutions has been studied as a function of agitation time, adsorbent dosage, initial dye concentration and pH. The adsorption follows both Langmuir and Freundlich isotherms. The adsorption capacity Q0 was 19.88 mg/g at initial pH 6.3. The equilibrium time was found to be 80 min for 10, 20, 30 and 40 mg/L, dye concentration respectively. A maximum removal of 87% was obtained at pH 2.0 for an adsorbent dose of 600 mg/50 ml of 10 mg/L dye concentration. Adsorption increases with increase in pH. Maximum desorption of 60% was achieved in water medium at pH 10.0.

Related Compounds

  • Acid violet 17

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