Original scientific paper
https://doi.org/10.13044/j.sdnarema.d1.0625
Granular Activated Carbon (GAC) Adsorption of Herbicide (Metsulfuron methyl) in Water and Doping Zn-TiO2 Activated Carbon Coupling with Batch Photocatalytic Oxidation
Singto Sakulkhaemaruethai
orcid.org/0000-0003-2143-4572
; Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
Nathaporn Areerachakul
; Suan Sunandha Rajabhat University, Bangkok, Thailand
Jaya Kandasamy
; University of Technology Sydney, Sydney, Australia
Aran Kwanpan
; Suan Sunandha Rajabhat University, Bangkok, Thailand
Saravanamuthu Vigneswaran
; University of Technology Sydney, Sydney, Australia
Tien - Vinh Nguyen
; University of Technology, Sydney, Sydney, Australia
Thi Thu Trang Nguyen
; The Vietnam Academy of Science and Technology, Hanoi, Vietnam
Do Van Manh
; 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.
Keywords
Herbicide; Granular activated carbon; Adsorption; Sips; Fixed bed; Doped Zn-GAC.
Hrčak ID:
336180
URI
Publication date:
31.5.2026.
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