دوره 14، شماره 2 - ( 6-1405 )                   جلد 14 شماره 2 صفحات 183-153 | برگشت به فهرست نسخه ها

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Mehralipour J, Babaeinia P. Effective Removal of Polyethylene Microplastics from Aqueous Environments by Electrocoagulation: Modeling, Optimization, and Process Applicability. , J Environ Health Eng. 2026; 14 (2) :153-183
URL: http://jehe.abzums.ac.ir/article-1-1177-fa.html
مهرعلی پور جمال، بابایی نیا پریا. حذف مؤثر میکروپلاستیک پلی‌اتیلن از محیط‌ های آبی با الکتروگواگولاسیون: مدل‌سازی، بهینه‌سازی و کاربردپذیری فرایند. , مجله مهندسی بهداشت محیط. 1405; 14 (2) :153-183

URL: http://jehe.abzums.ac.ir/article-1-1177-fa.html


1- مرکز تحقیقات سلامت در حوادث و بلایا، پژوهشکده سلامت اجتماعی، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران
2- مرکز تحقیقات سلامت در حوادث و بلایا، پژوهشکده سلامت اجتماعی، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران ، pariya.babaei251079@yahoo.com
چکیده:   (6 مشاهده)
زمینه و هدف: با توجه به مخاطرات میکروپلاستیک‌های نوظهور، کارایی فرایند الکتروکواگولاسیون در حذف پلی‌اتیلن بهینه‌سازی و عملکرد آن در ترکیب با فرایندهای فوتو و سونوالکتروکواگولاسیون ارزیابی شد.
مواد و روش‌ها: این مطالعه در یک راکتورالکتروشیمیایی ناپیوسته با حجم یک لیتر انجام شد. بهینه‌سازی متغیرهای فرایند، با استفاده از طراحی ترکیبی مرکزی انجام شد. در شرایط بهینه، تاثیر حضور امواج فراصوت و پرتوی ماورابنفش، میزان حذف COD و TOC، سینتیک واکنش و میزان انرژی مصرفی مورد بررسی قرار گرفت.
یافته‌ها: بر اساس یافته‌ها، مدل درجه‌دوم برازش مناسبی بر داده‌های فرایند داشت. شرایط بهینه (۶/۹=pH، جریان= آمپر، فاصله الکترودی=۱ سانتی­متر، ۶ الکترود) طی ۷۵دقیقه به راندمان ۹۶/۸ درصد رسید. در شرایط یکسانِ ۴۵ دقیقه‌ای، راندمان فرایندهای فوتوالکتروکواگولاسیون، سونوالکتروکواگولاسیون و الکتروکواگولاسیون به‌ترتیب ۹۲، ۸۸ و ۷۳ درصد بود. سینتیک حذف در الکتروکواگولاسیون از مدل درجه‌صفر و در سیستم‌های هیبریدی از مدل درجه‌اول تبعیت کرد. تغییرات ضریب هم‌افزایی در بازه ۱۵ تا ۷۵ دقیقه نشان داد که راندمان سیستم‌های هیبریدی با زمان افزایش یافت. کاهش COD/TOC کمتر از حذف میکروپلاستیک بود که گویای غلبه جداسازی فیزیکی بر اکسیداسیون سطحی است. مصرف انرژی ویژه نیز برای الکتروکواگولاسیون، فوتوالکتروکواگولاسیون و سونوالکتروکواگولاسیون به‌ترتیب ۳۳/۷۵، ۳۸/۲۵ و ۱۹۸/۷۵ kWh/m³ محاسبه شد.
نتیجه‌گیری: فرایندهای هیبریدی فوتو و سونوالکتروکواگولاسیون با تسریع سینتیک حذف و افزایش راندمان، کارایی بالاتری نسبت به الکتروکواگولاسیون نشان دادند و پتانسیل مناسبی برای کاربرد در تصفیه محیط‌های آبی آلوده به میکروپلاستیک دارند.
متن کامل [PDF 787 kb]   (2 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
دریافت: 1405/5/3 | پذیرش: 1405/6/12 | انتشار: 1405/6/29

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