인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Recently, sulfur-oxidizing bacteria (SOB) has been used as a bioindicators for detecting heavy metals and other toxic chemicals in water. The methodology exploits the ability of SOB to oxidize elemental sulfur to sulfuric acid under aerobic condition and results in an increase in electrical conductivity (EC) and a decrease in pH. Thus, the typical monitoring of SOB biosensor is based on the measurement of EC and pH of the medium. In this study, effect of different air flow rate (200, 300, and 400 ml min− 1) on activity of SOB has been evaluated. It was found that 400 ml min− 1 of air flow rate gave the best performance. At this air flow rate, the EC value increased by 9.9% and 2.3% as compared to 200 and 300 ml min− 1, respectively. However, at high flow rate, the EC value could be influenced by evaporation. Ag2+ was used as the reference toxicant in the experiment. The EC50 of Ag2+ for 1 and 2 h was 2.3 ± 1.9 and 3.62 ± 2.4 mg l− 1, respectively.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.