Safe and easy disposal of prochloraz wastewaters after used as rice seed disinfectant

벼 종자소독 후 prochloraz 폐액의 안전 폐기 방법

  • Park, Byung-Jun (National Institute of Agricultural Science & Technology, RDA) ;
  • Choi, Ju-Hyeon (National Institute of Agricultural Science & Technology, RDA) ;
  • Kim, Chan-Sub (National Institute of Agricultural Science & Technology, RDA) ;
  • Lee, Byung-Moo (National Institute of Agricultural Science & Technology, RDA) ;
  • Ihm, Yang-Bin (National Institute of Agricultural Science & Technology, RDA) ;
  • Cho, Il-Kyu (CropScience Korea, Ltd.)
  • 박병준 (농업과학기술원 작물보호부 농약안전성과) ;
  • 최주현 (농업과학기술원 작물보호부 농약안전성과) ;
  • 김찬섭 (농업과학기술원 작물보호부 농약안전성과) ;
  • 이병무 (농업과학기술원 작물보호부 농약안전성과) ;
  • 임양빈 (농업과학기술원 작물보호부 농약안전성과) ;
  • 조일규 (크롭사이언스 코리아 (주))
  • Published : 2003.09.30

Abstract

For safe and easy disposal of prochloraz wastewaters after used as rice seed disinfectant in Korean farms, this experiment was carried out. By addition of several agricultural materials commonly utilizing in farmers, removal effect of prochloraz from waste solution was also investigated. When rice seeds after soaking in diluted prochloraz solution were rinsed with water several times, prochloraz was removed $9.2\sim10.6%$ at the first rinse and less than 3 % at the fourth rinse. A half life of prochloraz was $4\sim5$ days in aqueous system. Hydrolysis of prochloraz was more rapidly in alkali solution than neutral and acidic one at $25^{\circ}C$ and $35^{\circ}C$. By the irradiation under $5530J/cm^2$ using xenone lamp, prochloraz was photo-degraded to 87.7% in aqueous system. The removal efficiency of prochloraz by addition of several agricultural materials were as follows: 93.6% by lime, 90.7% by composed pig manure, 89.4% by activated charcoal, 78.0% by straw ash, 70.3% by sandy loam soil, 47.0% by zeolite and 24.1 % by rice straw. When prochloraz solution was sprayed on the field soil, it was dissipated upto 90% within 35 days.

References

  1. Benjamin M. van V. and W. J. Weber, Jr (1981) Comparative performance of synthetic adsorbents and activated carbon for specific compound removal from wastewaters. Journal WPCF. 5385~ 1597
  2. Donald E. M., R. W. Young, C. P. Palmer, R. L. Hamilton and P. C. Sherertz (1989) Disposal of concentrated solutions of diazinon using organic absorption and chemical and microbial degradation. Pesticide Sci. 25: 241-254 https://doi.org/10.1002/ps.2780250305
  3. EPA(1999) Fate, transport and transformation test guidelines. OPPTS 835.2210, Direct photolysis rate in water by sunlight
  4. EPA(1999) Fate, transport and transformation test guidelines. OPPTS 835. 5270, Indirect photolysis screening test
  5. Gonzalez, J. M. and L. Ukrainczyk (1996) Adsorption and desorption of cinosulfuron in soil. J. Environ. Qual., 25: 1186-1192
  6. Fletcher J. T., M.J. Hims and R. J. Hall (1983) The control of bubble diseases and cobweb disease of mushrooms with prochloraz, Plant pathology 32: 123-131
  7. OECD(1981) OECD guidelines for testing of chemicals. 111. 1-24. Hydrolysis as a function of pH
  8. Subhasish K. C., A. Bhattacharyya and A. Chowdhury (1993) Phototransformation of the insecticide hydramethylnon in aqueous systems. Pesticide Sci. 37: 73-77 https://doi.org/10.1002/ps.2780370111
  9. 박병준, 최주현, 이병무, 임건재, 김찬섭, 박경훈 (1998) 몇가지 수중 환경요인에 의한 iprobenfos, isoprothiolane 및 diazinon 의 분해속도 농약과학회지. 2(2) : 39-44
  10. 정영호, 박영선(1990) 농약학. 전국농업기술자협회 pp. 214~215