Your browser doesn't support javascript.
loading
Accelerated nitrogen consumption in sediment by Tubifex tubifex and its significance in eutrophic sediment remediation.
Yang, Jiqiang; Wan, Yun; Zhang, Miao; Cao, Zhifan; Leng, Xin; Zhao, Dehua; An, Shuqing.
Afiliación
  • Yang J; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
  • Wan Y; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
  • Zhang M; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
  • Cao Z; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
  • Leng X; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
  • Zhao D; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China. Electronic address: dhzhao@nju.edu.cn.
  • An S; Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing, 210093, Jiangsu, PR China; Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, PR China.
Environ Pollut ; 272: 115925, 2021 Mar 01.
Article en En | MEDLINE | ID: mdl-33139096
Sediment remediation in eutrophic aquatic ecosystems is imperative, but effective ecological measures are scarce. A pilot-scale trial investigated sediment remediation by the addition of Tubifex tubifex. The results showed that the addition of T. tubifex accelerated sediment organic matter (OM) and nitrogen (N) loss, with averages of 7.7% and 75.1% increased loss (IL) compared to treatments without T. tubifex in the 60-day experiment, respectively. The percentages of the increased in water to the IL in sediment were only 0.6%, 0.21%, 2.1% and 6.3% for NH4+-N, NOx--N, TN and COD, respectively, at the end of the experiment. The absolute abundances of the nitrifying genes AOA and AOB; the denitrifying genes napA, nirS, nirK, cnorB and nosZ; and the anaerobic ammonia oxidation gene anammox increased 2.3- to 11.0-fold with the addition of T. tubifex. Therefore, the addition of T. tubifex is an effective strategy for sediment remediation by accelerating OM and N loss in sediment without substantially increasing the water N concentration.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoquetos / Nitrógeno Límite: Animals Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2021 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oligoquetos / Nitrógeno Límite: Animals Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2021 Tipo del documento: Article Pais de publicación: Reino Unido