بررسي و ارزيابي عملكرد ازن‌زني به‌همراه كربن فعال در حذف سفكسيم از محيط‌هاي آبي

Investigation and Evaluation of Ozonation Performance with Activated Carbon in Removal of Cefixime from Aqueous Environments

در اين ‌مقاله، ازن‌زني و ازن‌زني همراه با كربن فعال به‌منظور حذف مادۀ دارويي سفكسيم از محيط­ هاي آبي مورد مطالعه قرار گرفت. نتايج آزمايش ازن‌زني بر سفكسيم نشان داد كه ازن‌زني بر روند حذف سفكسيم از محلول آبي تأثير مثبت دارد، به‌طوري‌كه غلظت آلايندۀ دارويي در مدت زمان 30 دقيقه از ppm 55به ppm 6 كاهش يافت. همچنين مؤلفۀ COD نيز به‌ميزان 51% كاهش پيدا كرد. تأثير استفاده از ازن همراه با كربن فعال، براي غلظت مشخصي از آلايندۀ دارويي ثابت شد. تأثير مؤلفه‌هاي عملياتي مختلف از قبيل ميزان غلظت آلايندۀ دارويي، غلظت كربن فعال، ميزان غلظت ازن ورودي، زمان واكنش و pH بر روي فرايند ازن‌زني همراه با كربن فعال بررسي شد. حداكثر بازده حذف سفكسيم از محيط‌هاي آبي به‌ميزان 96% محاسبه گرديد. اين مقدار در pH خود محلول و در حدود 4 به‌دست آمد.

In this paper, the ozonation and ozonation with activated carbon methods to remove cefixime medicinal material from aquatic environments have been studied. The results showed that ozonation has had a positive impact on removal of cefixime from aquatic solution, so that the concentration of medicinal contaminant has decreased from 55 ppm to 6 ppm in 30 minutes. Moreover, the COD parameter was reduced by 51%. According to the obtained values, the effect of activated carbon on a certain concentration of medicinal contaminant has been confirmed. Also, the effect of different operational parameters such as concentration of contaminant, concentration of activated carbon, concentration of inlet ozone, reaction time and pH on the process of ozonation with activated carbon was investigated. The maximum removal efficiency of cefixime from aquatic environments was obtained as 96%. This number was obtained at the pH level of aquatic solution which was about 4.