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하수종말처리장 방류수를 논 관개용수로 처리시 벼 생육 및 토양환경 영향 조사 - 라이시미터 재배실험 - KCI 등재

Rice Growth Response and Soil Quality by Domestic Wastewater Irrigation on Rice Paddy Field - Lysimeter experiment -

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농촌계획 (Journal of Korean Society of Rural Planning)
한국농촌계획학회 (Korean Society Of Rural Planning)
초록

The application of domestic wastewater on rice paddies results in the accumulation of sodium(Na+) to the soil. Excessive concentration of sodium may cause the deterioration of the physical characteristics of the soil, change in the osmosis of the soil, destruction of soil aggregates as well as ion toxicity due to sodium accumulation. Using domestic wastewater as irrigation water should be preceded by measures to prevent or control the soil salinization caused by sodium. Agricultural reuse of domestic wastewater were found not to cause serious problems with food safety due to heavy metals. However, pre-treatment using ultraviolet or ozone is recommended to reduce the number of bacteria and gem and for public health reasons. Using domestic wastewater has shown that reducing the standard application of chemical fertilizers by as much as 50% reduced the harvesting index by only 10%. This study has shown that it is feasible to reuse domestic wastewater on rice paddies. In order to facilitate the application, it is deemed necessary to establish wastewater treatment technologies in the future, to review criteria for recycling domestic wastewater for agricultural purposes such as conditions of soil and cropping system and to resolve conflicts with farmers and public health issues.

저자
  • 조재영 | Cho, Jae-Young
  • 박승우 | Park, Seung-Woo
  • 손재권 | Son, Jae-Gwon
  • 박봉주 | Park, Bong-Ju
  • 이용근 | Li, Long-Gen