کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6634215 | 461106 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
BioH2 photoproduction by means of Rhodopseudomonas palustris sp. cultured in a lab-scale photobioreactor operated in batch, fed-batch and semi-continuous modes
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کلمات کلیدی
PBRVH2Rhodopseudomonas palustrisBChlHPRTh2OMWVFAORPHRTVolatile fatty acids - اسیدهای چرب فرارPurple non-sulfur bacteria - باکتری های غیر صفر بنفشBatch - دسته ایHydrogen yield - عملکرد هیدروژنOlive mill wastewater - فاضلاب زیتون آسیاب شدهPhotobioreactor - فتوبیوراکتورFed-batch - فدرال رزروHydrogen production rate - میزان تولید هیدروژنSemi-continuous - نیمه مداوم
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The present investigation deals with Rhodopseudomonas palustris sp. grown, using acetate, for purposes of hydrogen generation. All experiments were carried out using a lab-scale photobioreactor. The cultures were irradiated with a 150Â W (OSRAM power star HQI-TS) lamp impinging on the reactor surface an irradiance of 74Â W/m2. Three different growth regimens were compared: batch, fed-batch, and semi-continuous. In the third approach, two daily dilutions were applied, in order to operate the photobioreactor at two hydraulic retention times: 240Â h in the first semi-continuous regimen (SC240h) and 60Â h in the second (SC60h). The best performances were attained when operating the photobioreactor in fed-batch mode. A maximum hydrogen production rate of 15.21Â mL(H2)/LÂ h was achieved. The hydrogen yield (YH) was 1.60Â mol H2/mol acetic acid in SC240h; 1.42Â mol H2/mol acetic acid when the culture was operated in fed-batch mode, and 0.85Â mol H2/mol acetic acid under a batch growth regimen. YH decreased to 0.36Â mol H2/mol acetic acid in SC60h. Significant changes in the oxidation-reduction potential were noted among the selected growth regimens tested then and also over time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 166, 15 February 2016, Pages 203-210
Journal: Fuel - Volume 166, 15 February 2016, Pages 203-210
نویسندگان
Giulia Padovani, Sigita VaiÄiulytÄ, Pietro Carlozzi,