تاثیر نانوماده آمینوکلی‌منیزیم (MgAC) بر رشد ریزجلبک بومی C‌hlorella Sorokiniana pa.91 در محیط کشت فاضلاب شهر ساری

نوع مقاله : پژوهشی اصیل (کامل)

نویسندگان
معصومه پنبه کاربیشه 1
حسن امینی راد 2
1 دانشجوی دکتری تخصصی
2 استادیار دانشگاه صنعتی نوشیروانی بابل
10.22034/22.4.9
چکیده
کشت ریزجلبک به دلیل توده زیستی بالا، تولید چربی، حذف کربن، کشت در اراضی غیرقابل ‌استفاده و طیف گسترده‌ای از محصولات نهایی مورد توجه قرار گرفته است و تحقیق در خصوص افزایش بهره‌وری و کاهش هزینه‌ها، تجاری‌سازی موجب تسهیل کشت این موجودات می‌شود. امروزه به دلیل هزینه بالای سنتز محیط کشت در مقیاس صنعتی از فاضلاب به‌عنوان محیط کشت ارزان و قابل‌دسترس استفاده شده و همچنین تصفیه فاضلاب و تولید بیودیزل از مزیت‌های دیگر این سیستم است. هدف این پژوهش بهینه‌سازی رشد و کیفیت زیست‌توده ریز جلبک بومی کلرلاسوروکینیانا با استفاده از نانو ماده آمینوکلی‌منیزیم در محیط کشت فاضلاب شهر ساری بود. در این تحقیق تجربی با بهره‌گیری از روش پاسخ سطح – طراحی مرکزی[1] (RSM-CCD) تأثیر سه فاکتور دما، شدت نور و غلظت نانو ماده بر وزن خشک زیست‌توده، نرخ رشد مخصوص، مقادیر کلروفیل و کارتنوئید در محیط کشت فاضلاب در 12 ساعت روشنایی و 12 ساعت خاموشی موردبررسی قرار گرفت. آناالیز نتایج نشان از افزایش وزن خشک زیست‌توده، نرخ رشد مخصوص، کلروفیل و کارتنوئید به ترتیب معادل 13/47، 26/30، 33/81 و 47/36 درصد در شرایط بهینه دمای 20 درجه سانتی‌گراد، شدت تابش 2000 لوکس و مقدار 05/0 گرم در لیتر نانو ماده آمینوکلی‌منیزیم نسبت به نمونه شاهد حاصل شد. همچنین به منظور قابلیت اجرایی بودن پژوهش حاضر شرایط آزمایش در فاضلاب واقعی انجام شد.




[1] Response surface methodology–central composite design



کلیدواژه‌ها

موضوعات

عنوان مقاله English

The effect of Magnesium Aminoclay (MgAC) nanomaterials on Chlorella sorokiniana pa.91 native microalgae growth in Sari culture medium

نویسندگان English

masumeh panbehkar 1
babol Amini Rad 2
1 student of pdf
2 ASSICTENT prophesor
چکیده English

Due to considerable carbon removal, high on-site biomass, and lipid production compared to traditional agriculture, and a wide range of final products, recent research has focused on the facile commercialization of Microalgae by increasing productivity and cost-effectiveness. Nowadays, wastewater is used as an inexpensive and easy-accessible culture medium rather than expensive culture medium synthesis on large scale, therefore, simultaneous wastewater treatment and production of biodiesel from microalgae can be considered sustainable, cost-effective, and environmentally friendly approach. In this regard, the present study is aimed to optimize the growth and biomass quality of Chlorella sorokiniana pa.91 microalgae from Sari wastewater culture medium using Magnesium Aminoclay nanomaterial (MgAC). In this study by application of the surface response method - central design, the effect of temperature, light intensity, and nanomaterial concentration was investigated on the parameters including the dry weight of biomass on the seventh day, specific growth rate, chlorophyll, and carotenoids in wastewater after 12 h exposure to visible light. Under 37 μmol photons, m-2 s-1 radiation intensity, and in the presence of 0.05 g/L of magnesium aminoclay NM at 20 °C, the optimal condition including biomass dry weight, specific growth rate, chlorophyll, and carotenoids increased by 47.13, 30.26, 81.33 and 36.47% respectively compared to the control sample. Also, to make the present study feasible, the test conditions were performed in real wastewater.

کلیدواژه‌ها English

Chlorella Sorokiniana pa.91
waste water
MgAC
RSM-CCD
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مهندسی عمران مدرس
دوره 22، شماره 4
خرداد و تیر 1401
صفحه 143-156