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Effect of free ammonia nitrogen on the methanogenic activity of swine wastewater
Belmonte, Marisol; Hsieh, Chia-Fang; Figueroa, Cindy; Campos, José Luis; Vidal, Gladys.
Affiliation
  • Belmonte, Marisol; Universidad de Concepción. Centro de Ciencias Ambientales EULA-Chile. Grupo de Ingenierí­a y Biotecnologí­a Ambiental. Concepción. CL
  • Hsieh, Chia-Fang; Universidad de Concepción. Centro de Ciencias Ambientales EULA-Chile. Grupo de Ingenierí­a y Biotecnologí­a Ambiental. Concepción. CL
  • Figueroa, Cindy; Universidad de Concepción. Centro de Ciencias Ambientales EULA-Chile. Grupo de Ingenierí­a y Biotecnologí­a Ambiental. Concepción. CL
  • Campos, José Luis; Universidad de Santiago de Compostela. Escuela Técnica Superior de Ingenierí­a. Departamento de Ingenierí­a Quí­mica. Santiago de Compostela. ES
  • Vidal, Gladys; Universidad de Concepción. Centro de Ciencias Ambientales EULA-Chile. Grupo de Ingenierí­a y Biotecnologí­a Ambiental. Concepción. CL
Electron. j. biotechnol ; 14(3): 2-2, May 2011. ilus, tab
Article in En | LILACS | ID: lil-602979
Responsible library: CL1.1
ABSTRACT
Swine wastewater is characterized by high organic matter content, solids, nitrogen (expressed as total ammonia and protein) and heavy metals. This work determines the methanogenic toxicity effect of free ammonia contained in swine wastewater comparing raw swine wastewater (RW) and the liquid fraction of swine wastewater (TW). The values of IC50 (50 percent of inhibition) obtained for methanogenic bacteria ranged between 56 and 84 percent for RW, meanwhile IC50 for TW was ranged between 84 and 94 percent. Such inhibitory effects can be related to the free ammonia nitrogen concentration (> 40 mg NH3-N/L) contained in swine wastewater.
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Full text: 1 Index: LILACS Main subject: Wastewater / Ammonia / Methane / Nitrogen Limits: Animals Language: En Journal: Electron. j. biotechnol Journal subject: BIOTECNOLOGIA Year: 2011 Type: Article / Project document

Full text: 1 Index: LILACS Main subject: Wastewater / Ammonia / Methane / Nitrogen Limits: Animals Language: En Journal: Electron. j. biotechnol Journal subject: BIOTECNOLOGIA Year: 2011 Type: Article / Project document