References

1. IEA (International Energy Agency) World Energy Outlook, 2015. Available at: https://www.iea.org/Textbase/npsum/WEO2015SUM.pdf (Accessed February 2016).
2. EIA (US Energy Information Administration), 2013. Available at: https://www.eia.gov/todayinenergy/detail.cfm?id=12251 (Accessed February 2016).
3. P.S. Nigam, A. Singh, Production of liquid biofuels from renewable resources, Prog. Energy Combust. Sci., 37 (2011) 52–68.
4. B. Da Silva Vaz, J.A.V. Costa, M.G. De Morais, CO₂ biofixation by the Cyanobacterium spirulina sp. LEB 18 and the green alga Chlorella fusca LEB 111 grown using gas effluents and solid residues of thermoelectric origin, Appl. Biochem. Biotechnol., 15 (2010) 1876–1878.
5. F. Passos, R. Gutierrez, D. Brockmann, J.P. Steyer, J. Garcia, I. Ferrer, Microalgae production in wastewater treatment systems, anaerobic digestion and modelling using ADM1, Algal Res., 10 (2015) 55–63.
6. I. Rawat, R. Ranjith Kumar, T. Mutanda, F. Bux, Dual role of microalgae: phycoremediation of domestic wastewater and biomass production for sustainable biofuels production, Appl. Energy, 88 (2011) 3411–3424.
7. I.T.D. Cabanelas, J. Ruiz, Z. Arbib, F.A. Chinalia, C. Garrido-Perez, F. Rogalla, I.A. Nascimento, J.A. Perales, Comparing the use of different domestic wastewaters for coupling microalgal production and nutrient removal, Bioresour. Technol., 131 (2013) 429–436.
8. R.O. Carey, K.W. Migliaccio, Contribution of wastewater treatment plant effluents to nutrient dynamics in aquatic systems: a review, Environ. Manage., 44 (2009) 205–217.
9. R. Dineshkumar, G. Dhanarajan, S.K. Dash, R. Sen, An advanced hybrid medium optimization strategy for the enhanced productivity of lutein in Chlorella minutissima, Algal Res., 7 (2015) 24–32.
10. L. Brennan, P. Owende, Biofuels from microalgae — a review of technologies for production, processing, and extractions of biofuels and co-products, Renew. Sustain. Energy Rev., 14 (2010) 557–577.
11. D. Jean-Sebastien, B. Alexandre, T. Rejean, Mixotrophic production of microalgae in pilot-scale photobioreactors: practicability and process considerations, Algal Res., 10 (2015) 80–86.
12. T. Suganya, M. Varman, H.H. Masjuki, S. Renganathan, Macroalgae and microalgae as a potential source for commercial applications along with biofuels production: a biorefinery approach, Renew. Sustain. Energy Rev., 55 (2016) 909–941.
13. J. Yang, M. Xu, X.-Z. Zhang, Q. Hu, M. Sommerfeld, Y.-S. Chen, Life-cycle analysis on biodiesel production from microalgae: water footprint and nutrients balance, Bioresour. Technol., 102 (2011) 159–165.
14. W. Zhou, Y. Li, M. Min, B. Hu, P. Chen, R. Ruan, Local bioprospecting for high-lipid producing microalgal strains to be grown on concentrated municipal wastewater for biofuel production, Bioresour. Technol., 102 (2011) 6909–6919.
15. W.J. Oswald, H.B. Gotaas, H.F. Ludwig, V. Lynch, Algae symbiosis in oxidation ponds: III. Photosynthetic oxygenation, Sewage Ind. Wastes, 25 (1953) 692–705.
16. W.J. Oswald, H.B. Gotaas, Photosynthesis in Sewage Treatment, Paper presented before the Sanitary Engineering Division, American Society of Civil Engineers, New York, Reprinted in Transactions of the American Society of Civil Engineers, Vol. 122, 1957, p. 73.
17. R. Boonchai, G.T. Seo, D.R. Park, C.Y. Seong, Microalgae photobioreactor for nitrogen and phosphorus removal from wastewater of sewage treatment plant, Int. J. Biosci. Biochem. Bioinf., 2 (2012) 407–410.
18. J. Kim, B. Lingaraju, R. Rheaume, J.-Y. Lee, J. Siddiqui, Removal of ammonia from wastewater effluent by Chlorella vulgaris, Tsinghua, Sci. Technol., 15 (2010) 391–396.
19. A.K. Sahu, J. Siljudalen, T. Trydal, B. Rusten, Utilisation of wastewater nutrients for microalgae growth for anaerobic co-digestion, J. Environ. Manage., 122 (2013) 113–120.
20. R.P. John, G.S. Anisha, K.M. Nampoothiri, A. Pandey, Micro and macroalgal biomass: a renewable source for bioethanol, Bioresour. Technol., 102 (2011) 186–193.
21. M. Nayak, A. Karemore, R. Sen, Performance evaluation of microalgae for concomitant wastewater bioremediation, CO₂ biofixation and lipid biosynthesis for biodiesel application, Algal Res., 16 (2016) 216–223.
22. D.S. Domozych, M. Ciancia, J.U. Fangel, M.D. Mikkelsen, P. Ulvskov, W.G. Willats, The cell walls of green algae: a journey through evolution and diversity, Front Plant Sci., 3 (2012) 1–7.
23. C.D. Miller, A.C. Yessica, T.E. Joshua, C.S. Ronald, Optimization of wastewater microalgae saccharification using dilute acid hydrolysis for acetone, butanol, and ethanol fermentation, Appl. Energy, 140 (2015) 14–19.
24. F.M. Girio, C. Fonseca, F. Carvalheiro, L.C. Duarte, S. Marques, R. Bogel-Lucasik, Hemicelluloses for fuel ethanol: a review, Bioresour. Technol., 101 (2010) 4775–4800.
25. O.B. Cynthia, K.T. Lee, Ultrasonic-assisted simultaneous saccharification and fermentation of pre-treated oil palm fronds for sustainable bioethanol production, Fuel, 119 (2014) 285–291.
26. B.D. Kaushik, Laboratory Methods for Bluegreen Algae, Vol. 171, Associated Publishing Company, New Delhi, 1987.
27. R.Y. Stainier, R. Kunisawa, M. Mandel, B. Choen, Purification and properties of a unicellular bluegreen alga (order Chroococcales), Bacteriol. Rev., 35 (1971) 171–205.
28. S.H. Ho, S.W. Huang, C.Y. Chen, T. Hasunuma, A. Kondo, J.S. Chang, Bioethanol production using carbohydrate-rich microalgae biomass as feedstock, Bioresour. Technol., 135 (2013) 191–198.
29. R. Harun, M.K. Danquah, Influence of acid pre-treatment on microalgal biomass for bioethanol production, Process Biochem., 46 (2011) 304–309.
30. J.T. Ellis, N.N. Hengge, R.C. Sims, C.D. Miller, Acetone, butanol and ethanol production from wastewater algae, Bioresour. Technol., 111 (2012) 491–495.
31. G. Moxley, Y.H.P. Zhang, More accurate determination of acid-temperaile carbohydrates in lignocellulose by modified quantitative saccharification, Energy Fuels, 21 (2007) 3684–3688.
32. M. Cerna, Seaweed proteins and amino acids as nutraceuticals, Adv. Food Nutr. Res., 24 (2011) 297–312.
33. X. Han, Y.S. Wong, M.H. Wong, N.F.Y. Tam, Biosorption and bioreduction of Cr(VI) by a microalgal isolate Chlorella miniata, J. Hazard. Mater., 146 (2007) 65–72.
34. A.D. Kshirsagar, Bioremediation of wastewater by using microalgae: an experimental study, Int. J. Life Sci. Biotechnol. Pharma Res., 2 (2013) 339–346.
35. E.J. Olguin, S. Galicia, G. Mercado, T. Pérez, Annual productivity of Spirulina (Arthrospira) and nutrient removal in a pig wastewater recycling process under tropical conditions, J. Appl. Phycol., 15 (2003) 249–257.
36. X.X. Wang, Y.H. Wu, T.Y. Zhang, X.Q. Xu, H.Y. Hu, Simultaneous nitrogen, phosphorous, and hardness removal from reverse osmosis concentrate by microalgae cultivation, Water Res., 94 (2016) 215–224.
37. S.K. Gupta, F.A. Ansari, A. Shriwastav, N.K. Sahoo, I. Rawat, F. Bux, Dual role of Chlorella sorokiniana and Scenedesmus obliquus for comprehensive wastewater treatment and biomass production for bio-fuels, J. Cleaner Prod., 115 (2016) 255–264.
38. R.A.I. Abou-Shanab, M.K. Ji, H.C. Kim, K.J. Paeng, B.H. Jeon, Microalgal species growing on piggery wastewater as a valuable candidate for nutrient removal and biodiesel production, J. Environ. Manage., 115 (2013) 257–264.
39. M. Nayak, A. Karemore, R. Sen, Performance evaluation of microalgae for concomitant wastewater bioremediation, CO₂ biofixation and lipid biosynthesis for biodiesel application, Algal Res., 16 (2016) 216–223.
40. M.K. Kim, J.W. Park, C.S. Park, S.J. Kim, K.H. Jeune, M.U. Chang, J. Acreman, Enhanced production of Scenedesmus sp. (green microalgae) using a new medium containing fermented swine wastewater, Bioresour. Technol., 98 (2007) 2220–2228.
41. R. Xiao, R. Chen, H.Y. Zhang, H. Li. Microalgae Scenedesmus quadricauda grown in digested wastewater for simultaneous CO fixation and nutrient removal, J. Biobased Mater. Bioenergy, 5 (2011) 234–240.
42. Y. Li, Y.F. Chen, P. Chen, M. Min, W. Zhou, B. Martinez, J. Zhu, R. Ruan, Characterization of microalga Chlorella sp. well adapted to highly concentrated municipal wastewater for nutrient removal and biodiesel production, Bioresour. Technol., 102 (2011) 5138–5144.