حذف مالاشیت سبز از استخرهای پرورش آبزیان با استفاده از نانو کاتالیست SBA-15

نوع مقاله: مقاله علمی - پژوهشی

نویسندگان

1 دانشگاه صنعتی خاتم الانبیاء(ص) بهبهان دانشکده ی منابع طبیعی گروه محیط زیست

2 دانشگاه صنعتی خاتم الانبیاء ص بهبهان دانشکده منابع طبیعی گروه محیط زیست

3 دانشگاه صنعتی خاتم الانبیاء ص بهبهان دانشکده ی منابع طبیعی گروه محیط زیست

چکیده

مالاشیت سبز به عنوان یک ترکیب قارچ کش، باکتری کش و انگل کش در صنعت آبزی پروری استفاده می شود که نفوذ آن به محیط زیست به عنوان یک آلاینده محسوب می شود. بنابراین حذف این ترکیبات قبل از تخلیه در منابع آب دارای اهمیت زیادی است. در این تحقیق جذب مالاشیت سبز به عنوان یکی از رنگ های کاتیونی بر روی SBA-15 انجام شد. سنتز SBA-15 با استفاده از روش ژائو و شناسایی نانو مواد نیز با روش تفرق اشعه ایکس و میکروسکوب الکترونی روبشی انجام شد. اثر پارامترهای مختلف از جمله دوز جاذب، زمان تماس، pH اولیه ی جذب شونده و غلظت اولیه ی جذب شونده تحت سیستم جذب ناپیوسته مورد بررسی قرار گرفتند. نتایج نشان داد بیشترین ظرفیت جذب SBA-15(069/0 میلی‌گرم) در غلظت اولیه‌ی 10 میلی‌گرم بر لیتر، دوز جاذب 200 میلی گرم بر لیتر و pH=10 بود. به علاوه درصد حذف شدن رنگ مالاشیت سبز تحت این شرایط 98 درصد بود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Removal of malachite green of aquaculture pools with Nano catalysts SBA-15

نویسندگان [English]

  • amir zeidi 1
  • reza alizadeh 2
  • mitra cheraghi 3
  • navid zamani 3

چکیده [English]

Malachite green is used as a fungicide, bactericide and parasitic ide in the aquaculture industry, which is influenced on the environment as a pollutant. So, removal of this compounds before discharging to the water resources is very important. In this study, adsorption of Malachite green as a cationic dye onto SBA-15 was studied. SBA- was synthesized using Zhao method and then characterized by X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM). Effects of various process parameters including adsorbent dosage, contact time, initial pH of the adsorb and initial Malachite green adsorb were investigated under batch adsorption system. Results showed that maximum adsorption Capacity of SBA-15 (90.06 mg/g) accrued at initial concentration of 10 mg/l, adsorbent dosage of 200 mg/l, and solution pH of 10. In addition Malachite green removal percentage under this condition was 98%.

کلیدواژه‌ها [English]

  • Adsorbent
  • Nano materials
  • adsorb
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