بررسي عملکرد فیلتر سرامیکی پوشش يافته با نانوذرات نقره در حذف باکتري اشرشیاکلی از آب آشامیدنی
فصلنامه علمی پژوهشی بهداشت در عرصه,
دوره 10 شماره 1 (1401),
20 اوت 2022
,
صفحه 23-30
https://doi.org/10.22037/jhf.v10i1.37981
چکیده
زمینه و اهداف: فناوري نانو، رشتهاي از دانش کاربردي است. استفاده از فناوري نانو و نانوذرات نقره در سالهاي اخير به منظور کنترل بيماريهاي باکتريايي مورد مطالعه و پژوهش قرار گرفته است. هدف از مطالعه حاضر، بررسي اثر ضدباکتريايي بسترهاي فيلتر سراميكي حاوي نانو ذرات نقره در کنترل باکتري اشرشیاکلی (E.Coli) در شرايط آزمايشگاهي بود.
مواد و روشها: این مطالعه از نوع آزمایشگاهی بود. نانوذرات نقره از طريق حـل كـردن نيتـرات نقـره (AgNO3) در اتـانول و احياي نقره در محيط الكلي سـاخته شـد. پس از تهیه فیلترهای سرامیکی خصوصیات کیفی فیلترها با استفاده از آنالیزهای BET، SEM، XRF و XRD بررسی شد. لازم به ذکر است که ملاحظات اخلاقی در تمام مراحل اجرای مطالعه رعایت گردید.
یافتهها: نتایج حاصل از این مطالعه نشان داد که راندمان حذف باکتری اشرشیاکلی توسط فیلترهای معمولی 66/7-36/2% و توسط فیلتر سرامیکی پوشش یافته با نانوذرات نقره 100-99% بوده است.
نتيجهگيري: نتايج اين پژوهش نشان داد که بسترهاي فيلتر سراميكي حاوي نانوذرات نقره داراي اثرات ضد ميكروبي قابل ملاحظهاي ميباشند، بنابراين با تعميم نتايج اين مطالعه ميتوان از اين بسترهاي فيلتر سراميكي در تصفيه و فيلتراسيون آب آشاميدني و کنترل بيماريهاي ناشي از بيماريزاهاي انساني استفاده نمود.
- تصفیه آب، فیلتر سراميکی، اشرشیاکلی، نانوذرات نقره، اثر ضدباکتریایی
ارجاع به مقاله
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