کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7067325 | 1459884 | 2018 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison between coagulation-flocculation and ozone-flotation for Scenedesmus microalgal biomolecule recovery and nutrient removal from wastewater in a high-rate algal pond
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The removal of nutrients by Scenedesmus sp. in a high-rate algal pond, and subsequent algal separation by coagulation-flocculation or flotation with ozone to recover biomolecules, were evaluated. Cultivation of Scenedesmus sp. in wastewater resulted in complete NH3-H removal, plus 93% total nitrogen and 61% orthophosphate removals. Ozone-flotation obtained better water quality results than coagulation-flocculation for most parameters (NH3-N, NTK, nitrate and nitrite) except orthophosphate. Ozone-flotation, also produced the highest recovery of lipids, carbohydrates and proteins which were 0.32â¯Â±â¯0.03, 0.33â¯Â±â¯0.025 and 0.58â¯Â±â¯0.014â¯mg/mg of biomass, respectively. In contrast, there was a low lipid extraction of 0.21â¯mg of lipids/mg of biomass and 0.12-0.23â¯mg of protein/mg of biomass in the coagulation-flocculation process. In terms of biomolecule recovery and water quality, ozone showed better results than coagulation-flocculation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 259, July 2018, Pages 334-342
Journal: Bioresource Technology - Volume 259, July 2018, Pages 334-342
نویسندگان
Gislayne Alves Oliveira, Elvis Carissimi, Ignacio Monje-RamÃrez, Sharon B. Velasquez-Orta, Rafael Teixeira Rodrigues, MarÃa Teresa Orta Ledesma,