A growth inhibitory model with SOx influenced effective growth rate for estimation of algal biomass concentration under flue gas atmosphere

作者：Ronda Srinivasa Reddy^*; Kethineni Chandrika; Parupudi Lakshmi Chandrika Pavani; Thunuguntla Venkata Bala Sai Chaitanya; Vemula Sandeep; Settaluri Vijaya Saradhi; Allu Prasada Rao; Grande Suresh Kumar; Sharma Suraj; Kandala Chari Venkatakrishna

来源：Bioresource Technology, 2014, 152: 283-291.

DOI：10.1016/j.biortech.2013.10.091

• Microalgae
• Biomass
• Flue gas
• Flow rate
• Modeling

A theoretical model for the prediction of biomass concentration under rice husk flue gas emission has been developed. The growth inhibitory model (GIM) considers the CO2 mass transfer rate, the critical SOx concentration and its role in pH-based inter-conversion of bicarbonate. The calibration and subsequent validation of the growth profile of Nannochloropsis limnetica at 2% and 10% (v/v) CO2 showed that the predicted values were consistent with the measured values, with r(2) being 0.96 and 0.98, respectively, and p < 0.001 in both cases. The constants used in the GIM for the prediction of biomass have been justified using sensitivity analysis. GIM applicability was defined as +/- 30% of the calibrated flow rate (3.0 L min (1)). This growth model can be applied to predict algal growth in photo-bioreactors treated with flue gas in the generation of biomass feed stock for biofuel production.

• 出版日期2014-1