کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7078555 | 1459982 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of cell production in photosynthetic bacteria wastewater treatment by low-strength ultrasound
ترجمه فارسی عنوان
افزایش تولید سلول در فاضلاب فتوسنتز با استفاده از سونوگرافی با قدرت کم
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The present study is aimed at enhanced cell production in together with pollution removal in photosynthetic bacteria wastewater treatment through low-strength ultrasound stimulation. The ultrasound strength was 0.3Â W/cm2 with 40Â kHz frequency. Results showed 1-10Â min sonication significantly improved the cell production. The optimal sonication time was 2Â min. When the irradiation period was over 10Â min, a strong mechanical damage occurred. These phenomena could be explained by the changes of PSB dehydrogenase activity. Sonication stimulated the initial dehydrogenase activity; moderate sonication increased the cell activity while too-long sonication led to quick enzyme activity decrease. The optimal sonication strategy was 1Â min at the 0th hour and 1Â min at the 27th hour. The corresponding cell production and cell yield increased by 110% and 93% respectively, and the COD removal reached 98%. The cost of low-strength ultrasound was only 1% of the incremental sales value of cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 161, June 2014, Pages 451-454
Journal: Bioresource Technology - Volume 161, June 2014, Pages 451-454
نویسندگان
Qin Zhou, Panyue Zhang, Guangming Zhang,