نوع مقاله : مقاله پژوهشی

نویسندگان

فردوسی مشهد

چکیده

از مهمترین پتانسیل های غشاهای نانوفیلتراسیون حذف یون ها از آب ها و پساب ها با اهداف مختلف است. از جمله این اهداف می توان به سختی زدائی از آب آشامیدنی، حذف یون های فلزات سنگین و تصفیه فاضلاب ها برای استفاده مجدد از آنها اشاره نمود. در این تحقیق از غشاء نانو فیلتراسیون برای حذف مهمترین یون های موجود در آب پرس تفاله چغندر قند (Na+, K+, Ca2+, Mg2+, SO42-, Cl-) با هدف استفاده مجدد از آن استفاده شده است. اثر پارامترهای عملیاتی (دما و فشار) و غلظت بر پارامترهای کارایی فرآیند فیلتراسیون غشایی (شار تراوه، گرفتگی و در صد دفع اجزاء) مورد بحث و بررسی قرار گرفته است. نتایج نشان داد که با افزایش دما شار تراوه، گرفتگی افزایش و درصد دفع یون ها کاهش می یابد و با افزایش اختلاف فشار، شار تراوه ، گرفتگی و درصد دفع یون ها افزایش می یابد. هم چنین نتایج حاکی از آن است که افزایش بریکس، افزایش گرفتگی و کاهش شار و درصد دفع را به همراه خواهد داشت.

کلیدواژه‌ها

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