14 بهمن 1389

انتقاد دوستداران محیط زیست از نانوتکنولوژی

نشریه توسعه مهندسی بازار- شماره ۱۶- آذر و دی ۱۳۸۹

توسعه مهندسی بازار: دوستداران طبیعت از نانو تکنولوژی و استفاده از مواد نانو انتقاد کردند زیرا اعتقاد دارند که تولید و استفاده از این مواد از نظر زیست محیطی پرهزینه تر است.

محصولاتی مانند نانو تیتانیوم اغلب در تولید محصولات ضدآفتاب به عنوان فیلتر ماوراء بنفش بکار می روند و نانو سیلور هم در بسیاری از لوازم خانگی مصرفی و همچنین بعضی از محصولات بهداشتی و آرایشی به عنوان  عنصر ضد باکتری  کاربرد دارد.

اما در گزارش اخیر گروه دوستداران محیط زیست آمده است که در مقایسه با  دی اکسید تیتانیوم عمده، در تولید ذرات نانو دی اکسید تیتانیوم ۳ تا ۶ بار  بیشتر گاز  کربن در هر کیلوگرم متصاعد میشود.به علاوه  این گروه مدعی است که برای هر کیلوگرم تولید این ذرات  تا ۶۰ کلیو وات ساعت انرژی مصرف می شود.

به ادعای این گروه در پسماندهای ناشی از تولید  نانو سیلور، ذراتی بجا می ماند که منجر به تولید گازهای گلخانه ای می شود. اخیراً نیز از سوی یک مؤسسه تحقیقات آلمانی توصیه شده بود که از نانو سیلور در محصولات آرایشی استفاده نشود زیرا هنوز برای قضاوت در مورد بی خطر بودن این مواد برای سلامتی شواهد کافی در دست نیست.

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