DOI QR코드

DOI QR Code

미세기포를 이용한 Spirulina platensis의 입자 부상분리 특성 및 수거효율

Particle Separation Characteristics and Harvesting Efficiency of Spirulina platensis Using Micro-bubble

  • 곽규동 (전북대학교 환경공학과) ;
  • 김미숙 ((사)한국도시재생기술연구원) ;
  • 곽동희 (서남대학교 환경화학공학과)
  • Gwak, Gyu-Dong (Department of Environmental Engineering, Chonbuk University) ;
  • Kim, Mi-Sug (Korean Urban Regeneration Technology Institute) ;
  • Kwak, Dong-Heui (Department of Environmental and Chemical Engineering, Seonam University)
  • 투고 : 2013.09.23
  • 심사 : 2013.10.15
  • 발행 : 2013.10.15

초록

Since algae had been issued an environmental problem, water blooms, deepened due to increase of retention water basin in Korea as well as a biomass resource for producing biofuel, this study conducted a series of experiments for Spirulina platensis using the flotation process with micro-bubble. To elevate utilization of collected-algae, this study focused on omitting or minimizing coagulant's doses as changing a cultivation period and condition affected on physical property change of algae. Two coagulants, PAC and Chitosan, were used to test the collecting rate of algae and the result found no difference between two rates. For flotation experiments without adding the coagulant, dried algae weight (passing 14 days after cultivation for 20 days) detected high separation efficiency 98.2 % and it (passing 7 days after long-term cultivation for 28 days) presented good separation efficiency 91.9 %. Chlorophyll's separation efficiency showed a similar tendency with the case of the dried algae weight. In endogeny conditions, a light source and a carbon source were not considerably affected on the flotation separation efficiency. Thus, this study confirms that algae biomass may be collected without the coagulant during the endogeny condition period after enough cultivation time, 3 weeks.

키워드

참고문헌

  1. Barrut, B., Blancheton, J.P., Muller-Feuga, A., Rene, F., arvaaez, C., Champagne, J.-Y., and Grasmick, A. (2013), Separation efficiency of a vacuum gas lift for microalgae harvesting, Bioresource Technology, 128, pp.235-.240. https://doi.org/10.1016/j.biortech.2012.10.056
  2. Berthouex, P. M. Brown, L. C.. Berthouet, M., (2001), Statistics for Environmental Engineers 2nd Edition, CRC.
  3. Cheong, C. J. (2010), Research Papers : Evaluation of Chitosan Application as an Alternative Coagulant of Aluminium Containing Coagulants in Water Treatment Processes, Journal of Chitin and Chitosan, 15(1), pp.24-28,
  4. Elder, A. R. (2011), Optimization of Dissolved Air Flotation for Algal Harvesting at the Logan, Utah Wastewater Treatment Plant, Thesis of Master of Science, Utah State University, 2011
  5. Fox R. D. (1996), Spirulina production and potential. Edisud, Aixen-Provence, France.
  6. Holm- Hansen, O., Gerloff, G. C., Skoog, F. (1954), Cobalt as an essential element for bluegreen algae. Physiol. Planta., 7, pp.665-675. https://doi.org/10.1111/j.1399-3054.1954.tb07727.x
  7. Jung, H. J., Lee, J. W., Choi, D. Y., Kim, S. J., and Kwak, D. H. (2006), Flotation efficiency of activated sludge flocs using population balance model in dissolved air flotation, Korean J. Chem. Eng., 23(2), pp. 271-278. https://doi.org/10.1007/BF02705726
  8. Kim, C .J., Jung, Y.H., Choi, K.G., Park, Y.H., Ahn, C.Y., and Oh, H.M. (2006), Optimization of Outdoor Cultivation of Spirulina platensis and Control of Contaminant Organisms, Algae, 21(1), pp.133-139, https://doi.org/10.4490/ALGAE.2006.21.1.133
  9. Kim, Y .M., Kim, J.Y., Lee, S.M., Ha, J.M., Kwon, T.H., and Lee, J.H. (2010), Carbon dioxide fixation using Spirulina platensis NIES 39 inpolyethylene bag, Appl. Chem. Eng., 21, pp.271.
  10. Ogawa, T., Terui, G. (1970), Studies on the growth of Spirulina platensis. (I) On the pure culture of Spirulina platensis. J. Ferment. Technol., 48, pp.361-367.
  11. Pernitsky, D.J. and Edzwald, J.K (2003), Solubility of poly aluminium coagulants, Journal of Water Supply : AQUA, 52, pp.395-406.
  12. Pulz, O., Gross, W., (2004). Valuable products from biotechnology ofmicroalgae. Appl. Microbiol. Biotechnol. 65, pp.635-648 https://doi.org/10.1007/s00253-004-1647-x
  13. Ross O. Youngs, Inc and Algae Venture Systems, (2009), Harvesting, Dewatering, and Drying Technology, Property of Univenture, Inc.
  14. Shimamatsu H. (2004), Mass production of Spirulina, an edible microalga. Hydrobiologia, 512, pp.39-44. https://doi.org/10.1023/B:HYDR.0000020364.23796.04
  15. Sim, T. (1988) Comparison of centrifugation, dissolved air flotation and drum filtration techniques for harvesting sewage-grown algae, Biomass, 16(1), pp.51-62 https://doi.org/10.1016/0144-4565(88)90015-7
  16. Walach M.R., Bazin M. and Pirt J. (1987), Computer control of carbon-nitrogen ratio in Spirulina platensis. Biotechnol. Bioengineer, 29, pp.520-528. https://doi.org/10.1002/bit.260290417
  17. Xu Ling, Feng Wang, Hua-Zhong Li, Zan-Min Hu, Chen Guo, Chun-Zhao Liu, (2010) Development of an efficient electroflocculation technology integrated with dispersed- air flotation for harvesting microalgae, Journal of Chemical Technology Biotechnology, 85(11), pp.1504-1507
  18. Zhang X., Hu, Q., Sommerfeld, M., Puruhito, E., Chen, Y. (2010) Harvesting algal biomass for biofuels using ultrafiltration membranes., Bioresource Technology, 101(2), pp.730-735 https://doi.org/10.1016/j.biortech.2009.08.039

피인용 문헌

  1. Characterization of Arthrospira platensis Cultured in Nano-bubble Hydrogen Water vol.26, pp.4, 2015, https://doi.org/10.14478/ace.2015.1042
  2. Auto/bio-flocculation conditions to separate algal particles without chemical coagulants for flotation and sedimentation processes pp.1520-5754, 2019, https://doi.org/10.1080/01496395.2019.1579842
  3. 스피루리나(Spirulina platensis)로부터 미백과 주름개선 생리활성 물질 분리를 위한 초음파 추출공정 개발 vol.54, pp.3, 2013, https://doi.org/10.5657/kfas.2021.0271