مرتضی شاهمرادی امیر تائبی هستی هاشمی نژاد


در این تحقیق، میزان پتانسیل حذف فلز سنگین کروم (VI) از محلول­های آبی توسط پوسته میوه تمبرهندی اصلاح شده با اسیدسولفوریک بررسی شد. روش سطحی پاسخ بر اساس روش D-optimal برای بهینه­سازی جذب کروم (VI) توسط ذرات پوسته میوه تمبرهندی اصلاح شده به کار رفت. پنج متغیر مستقل از جمله، دز جاذب برابر (1-7g/L)، سرعت لرزاننده (شیکر) برابر (50-200rpm)، pH اولیه محلول برابر (10-1)، غلظت اولیه محلول کروم (VI) برابر ((5-150mg/L و زمان تماس برابر (30-120min) برای پیش­بینی بازدهی حذف فلز سنگین کروم (VI) به کار رفت. اهمیت متغیرهای مستقل و تقابل آنها توسط آنالیز واریانس (ANOVA) بررسی شد. با استفاده از بهینه­سازی به مقادیر بهینه دز جاذب برابر 3g/L، سرعت لرزاننده برابر 200rpm، pH برابر 1، غلظت محلول کروم برابر 150mg/L و زمان تماس برابر 90min به بیشینه ظرفیت جذب محلول کروم (VI) برابر 23mg/g دسترسی پیدا کردیم؛ نتایج آزمایشات جذب با مدل ایزوترم فرندلیچ سازگاری بیشتری داشت.

جزئیات مقاله

کلمات کلیدی

بهینه¬سازی, پوسته میوه تمبرهندی, روش رویه پاسخ, محلول کروم 6 بار مثبت, D-optimal

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ارجاع به مقاله
شاهمرادیم., تائبیا., & هاشمی نژاده. (۱۳۹۷-۰۶-۱۱). طراحی و بهینه¬سازی جذب فلز سنگین کروم (VI) از محلول¬های آبی توسط ذرات پوست میوه تمبرهندی فعال شده با اسیدسولفوریک. آب و خاک, 32(5), 891-904. https://doi.org/10.22067/jsw.v32i5.64308
نوع مقاله
علمی - پژوهشی