Abstract：
:In order to utilize the excess sludge and reduce the cost of algal cultivation, Chlorella vulgaris was cultivated in increasing proportions of sludge extracts for simultaneous nutrients removal and algal utilization. Results showed that C. vulgaris cultivated in the 100% sludge extract gained the highest total biomass (33.98 ± 0.30 × 106 cells/mL) and showed good results in TOC (absolute value 175 mg/L) and nutrients (TN: 77.1%; TP: 95.0%) removals. According to the Excitation-emission matrix spectra (EEMs) analysis, the 8th day was suggested as the optimal time for biomass harvesting. Although the lipid contents showed a negative correlation with the proportion of sludge extract, the FAME analysis showed that the saturated fatty acids (SFA) contents decreased and the unsaturated fatty acids (UFA) content increased as the concentration of sludge extract increased. The 100% sludge extract could be a desirable alternative medium for the algae cultivation.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wang L,Addy M,Lu Q,Cobb K,Chen P,Chen X,Liu Y,Wang H,Ruan Rdoi
10.1016/j.biortech.2019.02.017subject
Has Abstractpub_date
2019-05-01 00:00:00pages
505-510eissn
0960-8524issn
1873-2976pii
S0960-8524(19)30196-8journal_volume
280pub_type
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pub_type： 杂志文章,评审
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更新日期：2018-04-01 00:00:00
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