논문 국내 국제전문학술지(SCI급) Inhibition of the Algal Growth using TiO2-embedded Expanded Polystyrene (EPS) balls in Lab-scale Outdoor Experiment
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-09
- 저자명 김가영,주진철,안보름,이대홍,박재로,안창혁,오종민
- 학술지명 Ecology and resilient infrastructure
- 발행처명 응용생태공학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 7
- 연구분야 자연과학 > 생물학
- 원문 링크 http://dx.doi.org/10.17820/eri.2018.5.3.174
홈페이지논문 초록 (Abstract)
TiO2-embedded expanded polystyrene (TiEPS) balls with powdered TiO2 particles embedded on the surface of EPS were developed, and the growth inhibition of Chlorella ellipsoidea, a green algae, was evaluated. The experiment was conducted using four reactors with various conditions of (A) natural sunlight, (B) natural sunlight + TiEPS balls, (C) dark, and (D) dark + TiEPS balls on the roof of the building during five days. Based on the analysis of cell number, cell morphology, concentrations of chlorophyll-a and phaeopigments, both surface reactions in heterogeneous photocatalysis and light shielding could inhibit the growth of C. ellipsoidea. The highly reactive hydroxyl radicals (OH･) from TiEPS balls degraded the lipid cell membrane through the peroxidation reaction with the light shielding, eventually resulting in cell inactivation. Although dominant inhibitory effects on the growth of C. ellipsoidea were ambiguous, TiEPS balls were feasible to prevent and inhibit the excessive growth of algae in eutrophic water body.