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7종의 실내식물을 이용한 벤젠·톨루엔·에틸벤젠 제거효과
이윤국,김난희,장정원,전홍대,김동수,조영관,김은선 한국냄새환경학회 2015 실내환경 및 냄새 학회지 Vol.14 No.2
The efficiency of using 7 indoor plants, which were Chrysalidocarpus lutescens, Ficus robusta, Sansevienriatrifasciata, Rhapis excelsa, Scindapusus aureus, Anthurium andraeanum and Pachira aquatica, for B·T·E (Benzene,Toluene, Ethylbenzene) removal were assessed at 1200 Lux light intensity in airtight chambers (1.27 m3). Rhapisexcelsa, Chrysalidocarpus lutescens and Ficus robusta were among the most effective plants, completely removingfor B·T·E within 38 hours, wherease Scindapusus aureus and Sansevienria trifasciata were the lowest in termsof removal efficiency. But when the removal efficiency was measured per unit leaf area (μg·m−3·−2), it was foundthat Scindapusus aureus, Anthurium andraeanum and Sansevienria trifasciata removed higher amount than Rhapisexcelsa, Chrysalidocarpus lutescens and Ficus robusta. Plants with wide leaves and a big leaf area includingRhapis excelsa and Chrysalidocarpus lutescens showed higher removal efficiencies of B·T·E than those withsmaller leaves such as Scindapusus aureus. Among the plants tested over 120 hours, the species that emitted thehighest levels of CO2, involved with photosynthesis and respiration in plants, Pachira aquatica (11,560 ppm) wasemitting 10 times more CO2 than Scindapusus aureus (1,260 ppm).
이윤국,이주리,정선용,박정훈,Lee, Youn-Goog,Lee, Ju-Ry,Chung, Seon-Yong,Park, Jeong-Hun 한국지하수토양환경학회 2008 지하수토양환경 Vol.13 No.2
오염물질이 토양에 흡착 또는 탈착하는 성질은 지하계에서 오염물질의 이동과 거동에 큰영향을 미친다. 아트라진을 대상으로 광주지역 7가지 토양을 이용하여 흡착 및 탈착특성을 조사하였다. 토양의 유기탄소함량 (organic carbon content)은 $0.42{\sim}2.82%$의 범위였으며, 아트라진의 토양분배계수 ($K_d$)는 $0.48{\sim}3.26\;l/kg$의 범위였다. 경방 토양과 용동토양을 제외한 나머지 토양들은 유기탄소함량이 증가함에 따라 $K_d$ 값은 증가하였다. Three site desortpion model을 이용하여 평형 탈착분율, 비평형 탈착분율, 비탈착 분율 그리고 탈착속도계수를 구하였다. 실험한 모든 토양에서 아트라진의 비탈착 분율이 산출되었고, 다단탈착 실험에서도 탈착되지 않는 아트라진이 토양에 존재하였다. 다단 탈착 실험에서 흡착 등온선과 탈착 등온선이 일치하지 않는 이력현상이 나타났다. Sorption and desorption processes play an important role in the transport and fate of organic contaminants in subsurface system. In this study, sorption and desorption characteristics of atrazine in 7 soils selected at the Gwangju area were investigated. Soil organic carbon contents ranged from 0.42 to 2.82%. Sorption and desorption experiments were performed in batch slurries. Sorption distribution coefficient ($K_d$) of atrazine were ranged from 0.48 to 3.26 l/kg and $K_d$ value increased with increasing organic carbon contents except of Kyongbang and Youngdong soils. Single desorption data were analyzed by the three-site desorption model including equilibrium, non-equilibrium and non-desorbable site. Non-desorbable site fractions of atrazine in all soils were enumerated and non-desorbable atrazine was observed in seriesdilution desorption experiment. Sorption/desorption hysteresis was also observed in the series-dilution desorption experiment.