چکیده مقاله
Arsenic is a highly toxic element that occurs naturally in water sources and poses a serious threat to human health by inhibiting enzyme activity and disrupting essential biological processes Long term exposure to arsenic can result in severe health effects, including cancer and organ damage, making its removal from drinking water a global priority In recent years, nanomaterials such as carbon nanotubes CNTs have received significant attention due to their large surface area, unique structural properties, and strong adsorption capacity for contaminants In this study, oxidized multi walled carbon nanotubes MWCNTs were used as adsorbents to investigate their efficiency in arsenic removal under varying conditions The Taguchi experimental design method was applied because of the limited sample volumes available, ensuring reliable optimization with fewer tests The effects of pH 3, 5, 7, and 9 , contact time 20, 40, and 60 minutes , and initial arsenic concentrations 0 2, 0 5, 1, and 2 mg/L were evaluated The results indicated that removal efficiency strongly depends on solution conditions, with maximum removal observed at pH 9 75% , a contact time of 40 minutes 63% , and an initial concentration of 1 mg/L 65%
کلیدواژهها
نویسندگان
Ayoub Riahi Farssani
Master of Environmental Health Engineering, Employee of Chaharmahal and Bakhtiari Water and Wastewater Company
Fatemeh Rostami
Master of Chemical Engineering, Employee of Shiraz Water and Wastewater Company
شیوه ارجاع
Riahi Farssani, Ayoub and Rostami, Fatemeh,1404,Effect of pH on Arsenic Removal Using Oxidized Multi-Walled Carbon Nanotubes from Aqueous solution,The Third National Conference on Water Quality Management and the Fifth National Conference on Water Consumption Management with a Waste Reduction and Recycling Approach,Tehran
ارائهشده در
مجموعه مقالات سومین همایش ملی مدیریت کیفیت آب و پنجمین همایش ملی مدیریت مصرف آب با رویکرد کاهش هدررفت و بازیافت11 آذر 1404 · تهران