Characterization of a microalga Chlorella sp. well adapted to highly concentrated municipal wastewater for nutrient removal and biodiesel production

2011 ◽  
Vol 102 (8) ◽  
pp. 5138-5144 ◽  
Author(s):  
Yecong Li ◽  
Yi-Feng Chen ◽  
Paul Chen ◽  
Min Min ◽  
Wenguang Zhou ◽  
...  
Author(s):  
Helenice Silva de Jesus ◽  
Servio Tulio Alves Cassini ◽  
Marcos Vinicius Pereira ◽  
Aline Figueredo Dassoler ◽  
Ricardo Franci Gonçalves

Six Chlorophyta strains were isolated from the effluent of an anaerobic reactor treating municipal wastewater and identified as Desmodesmus sp. L02, Chlorococcum sp. L04, Coccomyxa sp. L05, Chlorella sp. L06, Scenedesmus sp. L08 and Tetradesmus sp. L09. The microalgae strains were cultivated in unsterilized wastewater under laboratory conditions to determine their potential to survive under non-sterile conditions. The strains were also cultivated in sterilized wastewater in order to analyze their nutrient removal potential and characterize the produced biomass. Amongst the isolated microalgae, Chlorella sp. L06 had the highest survivorship percentage (90%) for ten days of culture, whilst Desmodesmus sp. L02 had the lowest, not exceeding 1.8% after 24h of inoculation. The dried biomass of the isolates showed an average of 28.7% of protein, 15.4% of lipids and 14.8% of carbohydrates, with Chlorococcum sp. L04 reaching 29.3% of carbohydrates. In terms of nutrients, nitrogen removal varied from 59.2 to 93%, and phosphorus removal ranged from 79.1 to 95.4%, with Tetradesmus sp. L09 being the most efficient strain.


2020 ◽  
Vol 129 (5) ◽  
pp. 565-572 ◽  
Author(s):  
Tsuyoshi Aketo ◽  
Yumiko Hoshikawa ◽  
Daisuke Nojima ◽  
Yusuke Yabu ◽  
Yoshiaki Maeda ◽  
...  

2014 ◽  
Vol 162 ◽  
pp. 129-135 ◽  
Author(s):  
Mingming Song ◽  
Haiyan Pei ◽  
Wenrong Hu ◽  
Shuo Zhang ◽  
Guixia Ma ◽  
...  

2018 ◽  
Vol 42 (3) ◽  
pp. 425-433 ◽  
Author(s):  
Hamed Eladel ◽  
Abd El-Fatah Abomohra ◽  
Mohamed Battah ◽  
Soha Mohmmed ◽  
Aly Radwan ◽  
...  

2021 ◽  
Vol 9 (12) ◽  
pp. 2469
Author(s):  
Zhihui Chen ◽  
Yunhua Xiao ◽  
Tan Liu ◽  
Mingmin Yuan ◽  
Gang Liu ◽  
...  

Bio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel production. Two strains, Chlorella vulgaris FACHB-8 and Chlorella sp. FACHB-31, were selected based on their better growth performances, higher tolerance to wastewater (up to 100%), and better nutrient removal abilities. The capacity of each strain to remove TN, TP, NH4+-N, as well as lipid production and biomass composition in 100% ADSW were further examined. After 15 days of culture, 87.68~89.85%, 92.61~93.68%, and 97.02~97.86% of the nitrogen, phosphorus, and ammonia nitrogen were removed by Chlorella sp. FACHB-31 and C. vulgaris FACHB-8. Their lipid content and lipid productivities were 29.63~33.33% and 18.91~23.10 mg L−1 d−1, respectively. Proteins were both the major biomass fraction followed by lipids and then carbohydrates. Their fatty acid profiles both mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2. Taken together, our results suggest that C. vulgaris FACHB-8 and Chlorella sp. FACHB-31 are potential candidates for biodiesel production by using ADSW as a good feedstock.


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