期刊
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
卷 15, 期 8, 页码 789-800出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15226514.2012.736436
关键词
biomass; microalgae; nutrient scavenging; sewage; wastewater treatment
资金
- University Grants Commission, New Delhi
The present work was aimed at analysing the role of inoculated microalgae in nutrient dynamics, bioremediation and biomass production of sewage water. Preliminary microscopic analyses of sewage water revealed the presence of different algal groups, with predominance of Cyanophyta. Among the inoculated strains, Calothrix showed highest dry cell weight (916.67mg L1), chlorophyll and carotenoid content in tap water + sewage water (1:1) treatment. Significant removal of NO3-N ranging from 5778% and PO4-P (4491%) was recorded in microalgae inoculated tap water + sewage water. The total dissolved solids and electrical conductivity of tap water + sewage water after incubation with Calothrix sp. decreased by 28.5 and 28.0%, accompanied by an increase in dissolved oxygen from 4.4 to 6.4mg L1 on the 20th day. Our investigation revealed the robustness of Calothrix sp. in sequestering nutrients (N and P), improving water quality and proliferating in sewage water.
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