Earth and Environmental Science

Biography

Shijian Ge has completed PhD from Beijing University of Science and Technology (China) and Cornell University (USA). Later he joined New Jersey Institute of Technology (USA) and Queen’s University (Canada) as the post-doctoral researcher for 4 years. He is now a professor at Nanjing University of Science Technology (China) with 46 paper publication, 10 patents (2 pending, 8 issued), 1 engineering project, h-index of 19, i-10 index of 27, citation of 1312. He is serving as a reviewer for over 20 international scientific journals, an Editorial Board Member of Biotechnology Letters and was a Guest Editor of Biomed Research International.

Research Interest

The effects of wastewater, with four different nutrient loadings, from synthetic centrate on biomass production of Chlorella vulgaris, nutrient removal, microalgal settling, and lipid production were investigated in photobioreactors under both batches and, subsequently, semi-continuous operations. At higher centrate concentration factors (17.2% and 36.2%), hydraulic retention time and pH adjustments could be employed to sustain acceptable microalgal growth rates and wastewater treatment. Similar nutrient removals efficiencies (>95%) and biomass production (0.42-0.51 g/L) were observed for the four centrate concentrations. Both the lipid productivity and lipid content decreased with increasing nutrient loading in the wastewater. The results also demonstrated that the mass ratio of carbohydrate to protein could provide a good indication of microalgal settling performance, rather than sole component composition or total extracellular polymeric substances.