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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Development of treatment and recycling techniques of waste nutrient solutions for hydroponics system

2014년 8월 28일 16시 00분 08초
ENVR.P-1275 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 15일 (수요일) 16:00~19:00
저자 및
이주연, 권만재1,*
강릉원주대학교 생명화학공학과, Korea
1한국과학기술연구원(KIST) 천연물융합연구센터, Korea
During the last few decades, the soilless cultivation of vegetables and ornamentals has been increasingly shifted to closed hydroponics systems which are considered as environment-friendly cultivation systems. The main advantage of hydroponics systems is the reduction of water pollution by recycling the nutrient solutions used for hydroponics. In general, waste nutrient solutions contain relatively high concentrations of major ions (e.g., K+, NH4+, Mg2+, Ca2+,Cl-,NO3-, PO4-, SO42-) compared to those in municipal and industrial wastewater. Many developed countries have extensively investigated and developed the recycling and treatment technologies for the waste nutrient solutions. For example, several horticultural industries in Japan have examined the re-use techniques of waste nutrient solutions by the simultaneous reduction of pathogenic bacteria and heavy metals with activated carbon and excessive nutrients (e.g., NO3-) with Watercress. In Korea, a few studies have been conducted for sterilizing nutrient solution. A study showed that the passive flow-through system with sand and activated carbon layers is effective in sterilizing microorganisms (fungi, bacteria and some viruses). However, it required relatively long time for the successful outcomes and was difficult to maintain. In this presentation, we compare the physical, chemical and biological methods for the reduction of pathogens and excess nutrients in hydroponic systems in Europe, Japan and domestic. Also, we will present alternative, eco-friendly and efficient strategies for recycling and treatment of the waste nutrient solutions.