DOI QR코드

DOI QR Code

Effects of Intermittent Operation of Plasma and Electrolysis Processes on Lettuce Growth and Nutrient Solution Components

플라즈마 공정과 전기분해 공정의 간헐 운전이 상추성장과 양액 성분에 미치는 영향

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 기초교육대학)
  • Received : 2016.08.16
  • Accepted : 2016.10.06
  • Published : 2017.01.31

Abstract

This study was conducted to investigate the effects of intermittent plasma and electrolysis treatments on lettuce (Lactuca sativa var. oak-leaf.), nutrient solution components ($NO_3{^-}-N$, $NH_4{^+}-N$, $PO{_4}^{3-}-P$, $K^+$, $Ca^{2+}$ and $Mg^{2+}$) and environmental parameters (electrical conductivity, total dissolved solids and pH). The recirculating hydroponic cultivation system consisted of planting port, LED lamp, water reservoir and circulating pump. Nutrient solution was circulated in the following order: reservoir ${\rightarrow}$ filtration-plasma or filtration-electrolysis ${\rightarrow}$ planting port ${\rightarrow}$ reservoir. The results showed that nutrient solution components and environmental parameters were changed by plasma or electrolysis treatment. Lettuce growth was not affected by the intermittent plasma or electrolysis treatment with 30 minutes or 90 minutes, respectively. The roots of the lettuce was damaged by excessive plasma and electrolysis treatment. Electrolysis treatment had greater effect on than plasma treatment because of the accumulation of high levels of TRO (Total Residual Oxidants).

Keywords

Electrolysis;Lettuce growth;Nutrient;Plasma;Total residual oxidants (TRO)

References

  1. Blog of rural love gardening love, 2008, http://blog.naver.com/rohmy17
  2. Cho, J. O., 2008, Study in degradation of organic contaminant in wastewater using non-thermal plasma process, Master degree, Cheju National University, Korea.
  3. Cho, J. Y., Seo, B. S., Chung, S. J., 2000, Present status and prospect of sterilization of nutrient solution for recycling hydroponics, Kor. J. Hort. Sci. Technol., 18(6), 890-899.
  4. Kim, D. S., Park, Y. S., 2007, Electrochemical decolirization of Rhodamine B using dimensionally stable anode, J. Kor. Soc. Wat. Qual., 23(3), 377-384.
  5. Kim, D. S., Park, Y. S., 2014a, A Study on the inactivation of phytophthora blight pathogen (Phytophthora capsici) using plasma process, J. of Environ. Sci. Int., 23(9), 1601-1608. https://doi.org/10.5322/JESI.2014.23.9.1601
  6. Kim, D. S., Park, Y. S., 2014b, Inactivation of Ralstonia Solanacearum using filtration-plasma process, J. Environ. Sci. Int., 23(6), 1165-1173. https://doi.org/10.5322/JESI.2014.23.6.1165
  7. Kim, D. S., Park, Y. S., 2016, Comparison of phenol removal between electrochemical reaction and plasma reaction, J. Environ. Sci. Int., 25(7), 905-916. https://doi.org/10.5322/JESI.2016.25.7.905
  8. Kim, H. J., Woo, Y. H., Kim, W. S., Nam, Y. I., 2000, Problem and optimum control of nutrient solution management in closed hydroponics, Kor. J. Hort. Sci. Technol., 18(6), 884-889.
  9. Kim, J. H., Kee, Y. P., Kim, T. J., Kim, S. D., Lee, C. H., Yun, T., 2005, Effect of ozone water on cut flower quality by solution culture Dendranthema grandiflorum, 'Baegkwang', Kor. J. Hort. Sci. Technol., 23(3), 301-305.
  10. Kim, K. D., 1998, Management of nutrients in circulating hydroponics, Prot. Hort., 11(1), 55-58.
  11. Kim, Y. C., Kim, K. Y., 2002, Waste utilization technology and government expense sanctions fertilizer salt of hydroponics, Kor. Res. Prot. Hort., 15(2), 20-26.
  12. Lee, K. J., Kang, B. G., Lee, K. Y., Yun, T., Park, S. K., Lee, C. H., 2007, Chemical characteristics of ground water for hydroponics and waste nutrient solution after hydroponics in Chungbuk area, Kor. J. Enveron. Agri., 26(1), 42-48. https://doi.org/10.5338/KJEA.2007.26.1.042
  13. Ministry of Agriculture, 2001, Development of procedures for recycling and cleaning of waste nutrient solution from hydroponic culture system, GOVP1200133815, 10-15.
  14. Park, M. H., Shim, M. Y., Lee, Y. B., 1999, Effects of pH level and electrical conductivity on growth, nutrient absorption, transpiration and $CO_2$ assimilation of leaf lettuce in hudroponics, J. Bio. Env. Con., 8(2), 115-124.
  15. Park, Y. S., Kim, D. S., 2014, Nutrient composition changes in circulating hydroponic with plant growing, Proceeding of the Kor. Environ. Sci. Soc. Conf., 23, 349-353.
  16. Sugiarto, A. T., Ito, S., Ohshima, T., Sato, M., Skalny, J. D., 2003, Oxidative decolorization of dyes by pulsed discharge plasma in water, J. Electrosta., 58, 135-145. https://doi.org/10.1016/S0304-3886(02)00203-6
  17. Yu, S. O., Choi, K. Y., Jeon, K. S., Bae, J. H., 2006, Development of optimal nutrient solution of Cherry Tomato (Lycopersicone sculentum Mill. 'KoKo') in a closed soilless culture system, J. Bio-Env. Con., 15(1), 54-60.