MODEL KINETIKA LANGMUIR UNTUK ADSORPSI TIMBAL PADA ABU SEKAM PADI

Sembodo, Bregas S T (2006) MODEL KINETIKA LANGMUIR UNTUK ADSORPSI TIMBAL PADA ABU SEKAM PADI. EKUILIBRIUM, 5 (1). pp. 28-33.

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    Abstract

    One of the methods to overcome lead pollution in water is an adsorption process. Rice hull would turn to ash and was used as an alternative adsorbent for lead adsorption. The objective of this research was to examine the kinetics of lead adsorption onto rice hull ash. The examined variables were the temperature and the weight of adsorbent. The batch sorption experiments were carried out in the 1 liters stirred glass vessel contained 5 ppm Pb(NO3 ) 2 solution. The weights of rice hull ash introduced into the vessel were 1 g, 5 g, 8 g and 15 g. The temperatures of solution were 35 o C, 45 o C and 55 o C. The solution samples were taken every 10 minutes until reaching equilibrium and analyzed for the remaining Pb 2+ by AAS. The results showed that the increase in temperature reduced the rate of lead adsorption and the increase in weight of adsorbent accelerated the lead adsorption. It was also found that the Langmuir kinetics model adequately describes the variation in the adsorption observed in these experiments. Keywords: lead pollution, rice hull ash, kinetics of adsorption, Langmuir kinetics model

    Item Type: Article
    Subjects: T Technology > TP Chemical technology
    Divisions: UNSPECIFIED
    Depositing User: mr azis r
    Date Deposited: 13 May 2013 20:14
    Last Modified: 13 May 2013 20:14
    URI: https://eprints.uns.ac.id/id/eprint/671

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