Journal
ENVIRONMENTAL TECHNOLOGY
Volume 31, Issue 3, Pages 267-276Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330903453244
Keywords
adsorption; catalysis oxidation; Methylene Blue; lava; wastewater treatment
Categories
Funding
- Natural Science Fund for Colleges and Universities in Jiangsu Province [09KJB610001]
- Jiangsu Science and Technology [BK2009541]
Ask authors/readers for more resources
Adsorption has been found to be effective for the removal of dyes from effluent; however, the contaminant will cause secondary pollution if it is not properly treated. In this paper, the ability of lava as a low-cost adsorbent and catalyst for the removal of a commercial dye, Methylene Blue (MB), from aqueous solution has been investigated under various experimental conditions. It was found that lava had a high efficiency (more than 98%) for MB removal by adsorption. The adsorption equilibrium data can be fitted well by the Langmuir adsorption isotherm model. The adsorption kinetics was shown to be pseudo-second-order. After adsorption the contaminant could be catalysis oxidized by lava with the aids of H(2)O(2) and ultrasound. The result showed that 95% of the MB could be decomposed in 100 min with the aid of ultrasound at 85 W/cm(2). Overall, this study demonstrates lava as a promising material for wastewater treatment to remove and decompose dyes in a single treatment step.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available