Granular Activated Carbon (GAC) Adsorption of Herbicide (Metsulfuron methyl) in Water and Doping Zn-TiO2 Activated Carbon Coupling with Batch Photocatalytic Oxidation
Journal of Sustainable Development of Natural Resources Management
Volume 1, Issue 3, 1010625
DOI: https://doi.org/10.13044/j.sdnarema.d1.0625
, Nathaporn Areerachakul2, Jaya Kandasamy3, Aran Kwanpan2, Saravanamuthu Vigneswaran3, Tien - Vinh Nguyen4, Thi Thu Trang Nguyen5, Do Van Manh52 Suan Sunandha Rajabhat University, Bangkok, Thailand
3 University of Technology Sydney, Sydney, Australia
4 University of Technology, Sydney, Sydney, Australia
5 The Vietnam Academy of Science and Technology, Hanoi, Vietnam
Abstract
The granular activated carbon (GAC) filter was found to be very effective as a treatment for the removal of herbicides. The Sips isotherms showed the best fit with 6.6 % error. Fixed-bed column experiments packed with GAC were conducted with different GAC bed heights (5, 10, and 15 cm) and different effluent velocities. The GAC fixed bed column shows the model simulation fits reasonably well during the initial period, and also with a shallow bed depth (5 cm) with a flow rate of 4 m/h. Another set of experiments is GAC and GAC doping Zn with various concentrations to remove herbicides from water. The doped Zn–TiO2 GAC batch experiments can remove MM in terms of DOC from 60 to 77 % by using different w/v of doped Zn onto TiO2–GAC. The highest removal of MM 77 % by using a batch experiment was 0.125 % w/v Zn -TiO2.
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