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استفاده از باگاس بهعنوان جاذب رنگ اسید اورانژ7 از محلول آبی | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| مقاله 8، دوره 33، شماره 2 - شماره پیاپی 63، تیر 1397، صفحه 244-255 اصل مقاله (698.65 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijwpr.2018.116170.1444 | ||
| نویسندگان | ||
| علیرضا ضیاپور* 1؛ عباس زارع2؛ محمد بخشی3 | ||
| 1گروه علوم و مهندسی چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه گرگان، گرگان، ایران | ||
| 2گروه علوم و مهندسی چوب و کاغذ، دانشگاه تربیت دبیر شهید رجایی، تهران، ایران | ||
| 3گروه علوم و مهندسی صنایع چوب و کاغذ، دانشگاه آزاد اسلامی واحد کرج، کرج، ایران | ||
| چکیده | ||
| پتانسیل استفاده از باگاس برای حذف رنگ واکنشی اسید اورانژ 7 از محیط آبی با استفاده از محلول رنگ مصنوعی بررسی شد. نتایج نشان داد که با کاهش pH و دما، کارایی جذب این رنگ افزایش مییابد و از طرف دیگر با افزایش غلظت رنگ در محیط، ظرفیت جذب بیشتر میشود. سرعت جذب رنگ توسط این ماده نسبتاً سریع است و در تمامی آزمونها، غلظت تعادل در 20 دقیقة اول تیمار حاصل شد. مطالعات ایزوترم جذب با غلظت های مختلف نشان داد که فرایند جذب این رنگ بر روی باگاس هم از مدل لانگمویر و هم از مدل فروندلیچ تبعیت میکند ولی مدل لانگمویر با ظریب همبستگی بیش از 99/0 بهتر از مدل فروندلیچ با ضریب همبستگی 98/0 است. با استفاده از مدل لانگمویر، حداکثر ظرفیت جذب این رنگ 56/18 میلیگرم بر گرم محاسبه شد که در مقایسه با سایر مواد لیگنوسلولزی مطالعه شده، مقدار قابل قبول و مناسبی است. | ||
| کلیدواژهها | ||
| جذب؛ رنگ واکنشی؛ اسید اورانژ 7؛ پسماندهای لیگنوسلولزی؛ باگاس؛ ایزوترم جذب | ||
| عنوان مقاله [English] | ||
| Application of Bagasse as Adsorbent of Acid Orange 7 from Aqueous Solution | ||
| نویسندگان [English] | ||
| alireza ziapour1؛ Abbas Zare2؛ Mohammad Bakhshi3 | ||
| 1Faculty of Wood and Paper Engineering,Gorgan University of Agricultural Science & Natural Resources, Gorgan, Iran | ||
| 2Shahid Rajaee Teacher Training University, tehran, Iran | ||
| 3Islamic Azad University of Karaj, Karaj, Iran | ||
| چکیده [English] | ||
| Chemical and biological treatment of dye- containing wastewaters is difficult due to the low adsorption level and chemical stability of dyes. Activated carbon is usually used for adsorption of these materials, but because of high prices and restore problems, researchers trying to find available low-cost materials with high adsorption. In this study, bagasse was used for adsorption of Acid Grange7 dye and its capability was examined. Variables were concentration, temperature, pH and contact time, and the degree of adsorption was examined in different situations. Then, adsorption isotherm according to Langmuir and Freundlich models was investigated. The results showed that the adsorption efficiency depends more on pH of solution and less on temperature of the solution. Maximum adsorption of Acid Orange7 dye by bagasse occurred in the first 15 minutes of contact. The study of adsorption isotherm showed that both models are suitable for description of adsorption of Acid Orange7 dye by bagasse. Maximum adsorption of Acid Orange7 dye by bagasse was calculated as 18.56 mg/g. Results of this study showed that bagasse could be used as a low-cost bio adsorbent for the adsorption of Acid Orange7 from aqueous solution. | ||
| کلیدواژهها [English] | ||
| Adsorption, Adsorption Isotherm, Bagasse, Acid Orange7 Dye | ||
| مراجع | ||
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