کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6302377 | 1618038 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lipid-rich microalgal biomass production and nutrient removal by Haematococcus pluvialis in domestic secondary effluent
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The coupled system of wastewater treatment and microalgal biofuel production based on microalgal cultivation is a promising process. Screening of suitable microalgal species for this coupled system is necessary to achieve the dual purpose of the single system. In this study, biomass production, nutrient removal, and lipid accumulation in domestic secondary effluent by Haematococcus pluvialis were investigated. The maximal algal dry weight, maximal population growth rate, and maximal algal biomass productivity achieved by H. pluvialis in a typical domestic secondary effluent were 207 mg Lâ1, 1.16 Ã 104 cells mLâ1 dâ1, and 27.8 mg Lâ1 dâ1, respectively. Although the nitrogen/phosphorus ratio was as high as 15:1 in the secondary effluent used in this study, both nitrogen (93.8%) and phosphorus (97.8%) were removed efficiently by H. pluvialis when the stationary growth stage was reached. Furthermore, the lipid content of H. pluvialis increased from 25% to 43% due to nutrient depletion on the 10th day of cultivation. The maximal lipid accumulation rate obtained was 12.0 mg Lâ1 dâ1. Compared with most microalgal species reported in the literature, H. pluvialis showed significant advantages in biomass production, nutrient removal, and lipid accumulation in domestic secondary effluent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 60, November 2013, Pages 155-159
Journal: Ecological Engineering - Volume 60, November 2013, Pages 155-159
نویسندگان
Wu Yin-Hu, Yang Jia, Hu Hong-Ying, Yu Yin,