کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8252047 | 1533494 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regeneration of sulfamethoxazole-saturated activated carbon using gamma irradiation
ترجمه فارسی عنوان
بازسازی کربن فعال اشباع شده با سولفامتوکسازول با استفاده از تابش گاما
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کلمات کلیدی
آلاینده های در حال ظهور، کربن فعال، جذب، اشعه یونیزاسیون، بازسازی، تصفیه آب،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
Activated carbon (AC) has been widely used for reclamation and reuse of the effluent of wastewater treatment plant to further remove the emerging contaminants, such as PPCPs in recent years. How to regenerate the exhausted AC effectively and economically is still a challenge. In the present study, the regeneration of AC exhausted with SMX was performed by gamma irradiation to simultaneously recover the spent AC and degrade the pollutants. The results showed that the adsorption of SMX onto AC can be described by the Langmuir isotherm and the adsorption capacity was about 417Â mg/g. SMX can be removed rapidly when exposed to gamma irradiation, with the initial concentration of 100Â mg/L, more than 99% of SMX was removed at 5.0 kGy, while an extremely high dose (150 kGy) was needed to reach 80% mineralization ratio. The regeneration efficiency was about 21-30% at 50-200 kGy. The absorbed SMX and the intermediates formed during gamma irradiation were released into aqueous solution from AC and mineralized, leading to the partial regeneration of the adsorption capacity of AC. Further studies are needed to optimize the experimental conditions to increase the regeneration efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 130, January 2017, Pages 391-396
Journal: Radiation Physics and Chemistry - Volume 130, January 2017, Pages 391-396
نویسندگان
Libing Chu, Jianlong Wang,