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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제24권 제6호
- 발행연도
- 2014.1
- 수록면
- 843 - 853 (11page)
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초록· 키워드
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In the context of artificial groundwater recharge, a reactive soil column at pilot-scale (4.5 m depth and 3 m in diameter) fed by treated wastewater was designed to evaluate soil filtration ability. Here, as a part of this project, the impact of treated wastewater filtration on soil bacterial communities and the soil’s biological ability for wastewater treatment as well as the relevance of the use of multi-bioindicators were studied as a function of depth and time. Biomass; bacterial 16S rRNA gene diversity fingerprints; potential nitrifying, denitrifying, and sulfate-reducing activities; and functional gene (amo, nir, nar, and dsr) detection were analyzed to highlight the real and potential microbial activity and diversity within the soil column. These bioindicators show that topsoil (0 to 20 cm depth) was the more active and the more impacted by treated wastewater filtration. Nitrification was the main activity in the pilot. No sulfate-reducing activity or dsr genes were detected during the first 6 months of wastewater application. Denitrification was also absent, but genes of denitrifying bacteria were detected, suggesting that the denitrifying process may occur rapidly if adequate chemical conditions are favored within the soil column. Results also underline that a dry period (20 days without any wastewater supply) significantly impacted soil bacterial diversity, leading to a decrease of enzyme activities and biomass. Finally, our work shows that treated wastewater filtration leads to a modification of the bacterial genetic and functional structures in topsoil.
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참고문헌 (25)
참고문헌 신청
Adrover M / 2012 / Chemical properties and biological activity of Mallorca following twenty years of treated wastewater irrigation / J. Environ. Manage 95 : 188 ~ 192
Agnelli A / 2004 / Distribution of microbial communities in a forest soil profile investigated by microbial biomass, soil respiration and DDGE of total and extracellular DNA
Alkorta I / 2003 / Molecular microbial biodiversity assessment: a biological indicator of soil health / Rev. Environ. Health 18 : 131 ~ 151
Alkorta I / 2003 / Soil enzyme activities as biological indicators of soil health / Rev. Environ. Health 18 : 65 ~ 73
Antunes S / 2011 / Impaired microbial activity caused by metal pollution:a field study in a deactivated uranium mining area / Sci. Total Environ 410 : 87 ~ 95
Agnelli A / 2004 / Distribution of microbial communities in a forest soil profile investigated by microbial biomass, soil respiration and DDGE of total and extracellular DNA
Alkorta I / 2003 / Molecular microbial biodiversity assessment: a biological indicator of soil health / Rev. Environ. Health 18 : 131 ~ 151
Alkorta I / 2003 / Soil enzyme activities as biological indicators of soil health / Rev. Environ. Health 18 : 65 ~ 73
Antunes S / 2011 / Impaired microbial activity caused by metal pollution:a field study in a deactivated uranium mining area / Sci. Total Environ 410 : 87 ~ 95
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