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بهینه‌سازی فرآیند کاهش شوری زیستی از پساب صنعتی مصنوعی با TDS بالا به‌وسیله ریز جلبک Spirulina maxima با استفاده از روش سطح پاسخ | ||
| نشریه محیط زیست طبیعی | ||
| دوره 75، شماره 2، تیر 1401، صفحه 320-333 اصل مقاله (1.4 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jne.2022.336690.2368 | ||
| نویسندگان | ||
| مریم اسدی قالهری1؛ رویا مافی غلامی* 1؛ افشین تکدستان2؛ بهنوش خوش منش زاده1 | ||
| 1گروه علوم و مهندسی محیط زیست، واحد تهران غرب، دانشگاه آزاد اسلامی، تهران، ایران | ||
| 2گروه بهداشت محیط، دانشکده بهداشت، مرکز تحقیقات و فناوری های زیست محیطی، دانشگاه علوم پزشکی جندی شاپور، اهواز، ایران | ||
| چکیده | ||
| امروزه بکارگیری روش‌های تولید آب شیرین از آب‌های شور، می‌تواند راهکاری برای کاهش شدید منابع آب شیرین باشد. در این پژوهش از سلول‌های زنده ریز جلبک Spirulina maxima برای کاهش کل جامدات محلول پساب صنعتی مصنوعی با استفاده از فتوبیوراکتور به‌عنوان یک روش مفهومی جدید استفاده شد. اثر متغیرهای TDS، pH، شدت روشنایی و مدت زمان روشنایی-تاریکی بر رشد ریز جلبک‌ها و کاهش TDS بررسی و شرایط بهینه با روش سطح پاسخ باکس بنکن به‌دست آمد. با توجه به مدل به‌دست آمده، به‌ترتیب TDS پساب و pH بیشترین تأثیر را در کاهش TDS پساب مصنوعی داشتند. نتایج مطالعه نشان داد که میزان جذب TDS از مدل درجة دوم با توجه به مقادیر ضریب تعیین تعدیل شده (R2 Adjusted) و ضریب تعیین پیش‌بینی‌شده (R2 Predicted) برابر با 0/9508 و 0/8636 تبعیت می‌کند. بر این اساس حداکثر بازدهی حذف TDS در این مطالعه با متغیرهای TDS (mg/l 2000) ، (pH 9/36)، شدت روشنایی 4010 lux و مدت زمان روشنایی-تاریکی 15 ساعت به میزان 76 درصد به‌دست آمد که نشان از بازدهی این روش در حذف پساب مصنوعی داشت. | ||
| کلیدواژه‌ها | ||
| ریز جلبک؛ اسپیرولینا ماکزیما؛ مواد جامد محلول؛ شوری‌زدایی | ||
| عنوان مقاله [English] | ||
| Development of the biological salt removal process from artificial industrial wastewater with high TDS by Spirulina maxima microalga utilizing the response surface method | ||
| نویسندگان [English] | ||
| Maryam Asadi Ghalhari1؛ Roya Mafi gholami1؛ Afshin Takdastan2؛ Behnoush Khoshmanesh zadeh1 | ||
| 1Department of Environmental Science and Engineering, West Tehran branch, Islamic Azad University, Tehran, Iran | ||
| 2Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran | ||
| چکیده [English] | ||
| Today, the use of freshwater production methods from saltwater can be a solution for the drastic reduction of freshwater resources. This study aimed to investigate the direct usability of Spirulina maxima as a new conceptual method to remove total dissolved solids (TDS) of artificial industrial wastewater (AIW). The effects of TDS levels, pH, light intensity, and light-dark duration were examined on the microalgal growth and TDS removal, and optimal conditions were obtained with the response surface method and Box-Behnken Design (RSM-BBD). According to the obtained model, effluent TDS and pH respectively have the greatest effect in reducing TDS. The calculated values of coefficient of determination (R2), adjusted R 2, and predicted R2 were 0.9508, and 0.8636, which were close to R 2 values and confirmed the proposed statistical model. Based on this, the maximum TDS removal efficiency in this study was obtained with TDS variables (2000 mg/l), (pH 9.36), lighting intensity 4010 lux and light-dark duration of 15 hours at the rate of 76%, which shows the efficiency of this It had a method in removing artificial effluents. | ||
| کلیدواژه‌ها [English] | ||
| Microalgae, Spirulina maxima, Dissolved solids, Desalination | ||
| مراجع | ||
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