CO2 SEQUESTRATION USING CHARACIUM SP. IN AN AIRLIFT PHOTOBIOREACTOR
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN APPLIED SCIENCE AND ENVIRONMENTAL ENGINEERING
Author(s): MOHD SOBRI TAKRIFF , NUR LIYANA ABDUL RAHIMI , ZAHIRA YAAKOB
Abstract: Microalgae are known to have better growth rate and have higher performance at fixing CO2 compared to other photosynthetic organisms. In addition, microalgae require less space for cultivation, hence, the strategic use of photobioreactor. Cultivation of microalgae in photobioreactor is a practical approach to mitigate CO2 emission. In this study, Characium sp. was cultured in an airlift photobioreactor to determine the effect of CO2 concentrations on its growth. Assessment was also conducted on its biomass, chlorophyll a and lipid contents. Characium sp. presented the highest CO2 fixation rate in 5% CO2 with 1.222 g L-1 d-1. During 21-day interval cultures, the specific growth rate of Characium sp. at CO2 concentrations of 5%, 10%, and 15% were 0.263 d-1,, 0.191 d-1, and 0.181 d-1 respectively. Meanwhile, its biomass productivity at 5%, 10%, and 15% CO2 concentrations was 0.048 g L-1 d-1, 0.038 g L-1 d-1, and 0.028 g L-1 d-1respectively. The highest chlorophyll a recorded was 2.82 µg/m
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-004-0-16
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SALINITY STRESS ON GROWTH, NUTRIENTS AND CARBON DISTRIBUTION IN SEEDLINGS PARTS OF HERITIERA FOMES
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN APPLIED SCIENCE AND ENVIRONMENTAL ENGINEERING
Author(s): MD. NAZMUL HASAN , MAHMOOD HOSSAIN , MOHAMMAD RAQIBUL HASAN SIDDIQUE , SANJOY SAHA
Abstract: Present study was conducted to evaluate the effect of salinity on survival and growth of Heretiera fomes Buch.-Ham seedling. It was also examine the distributional pattern of nitrogen, phosphorus, potassium, sodium, and carbon in seedlings parts in relation to salinity. This experiment was carried out in hydroponic media for six months. All the seedlings (100%) found to survive at non saline (0 ppt) to moderate (10 ppt) saline conditions and lowest (40%) survival was observed at 35 ppt salinity. Significant (p 0.05) negative correlations were observed among salinity and different indicators of growth (collar diameter, height and oven-dried biomass increment). Significant (p 0.05) difference in nitrogen, phosphorus, potassium, sodium, and carbon concentration was observed for different parts of seedlings at different salinity levels. Comparatively (p 0.05) highest concentration of nitrogen (16 to 21 mg/g), phosphorus (2.9 to 3.7 mg/g), potassium (11 to 26 mg/g) and carbon (44.60 to 46.4
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-004-0-18
- Views: 0
- Downloads: 0