Gamma radiolytic decomposition of endosulfan in aerated solution: the role of carbonate radical

Noor S. Shah*, Javed Ali Khan, Ala’a H. Al-Muhtaseb, Murtaza Sayed, Hasan M. Khan

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

19 اقتباسات (Scopus)


The present study elaborates the removal of endosulfan, an emerging water pollutant and potential carcinogenic, in aerated solution. The influence of Cl, NO3 , NO2 , CO3 2−, HCO3 , SO3 2−, and humic acid was assessed on the radiolytic degradation of endosulfan. A strong inhibition on the radiolytic degradation of endosulfan was observed in the presence of NO3 , NO2 , and SO3 2−. Instead, a slight increase in the removal efficiency of endosulfan was observed at high concentrations of CO3 2− and HCO3 . The formation of CO3 •− in radiolytic degradation of endosulfan in the presence of CO3 2− and HCO3 was demonstrated by adding SO3 2− that rapidly react with CO3 •−. The results indicate that CO3 •− formed from the reactions of CO3 2− and HCO3 and commonly found in natural water can play an important role in the degradation of endosulfan and other sulfur containing electron-rich compounds. The study showed faster degradation of endosulfan at lower concentration compared to high concentration and removal was found to follow pseudo-first-order kinetic. Endosulfan ether was found as the main degradation product and degradation pathway was found to be initiated at the S=O bond of endosulfan. The efficiency of gamma irradiation in the removal of endosulfan was examined in terms of formation of short chain organic acids and chloride ion accumulation.

اللغة الأصليةEnglish
الصفحات (من إلى)12362-12371
عدد الصفحات10
دوريةEnvironmental Science and Pollution Research
مستوى الصوت23
رقم الإصدار12
المعرِّفات الرقمية للأشياء
حالة النشرPublished - يونيو 1 2016

ASJC Scopus subject areas

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