title: Ammonium reduction from piggery wastewater using immobilized ammonium-reducing bacteria with a full-scale sequencing batch reactor on farm.
abstract: This work aims to evaluate the efficiency of ammonium removal from piggery wastewater by an intermittent aeration (IA) sequencing batch reactor (SBR) with immobilized NH4(+)-reducing bacteria under mesophilic conditions. When a 20-L bench-scale SBR with 11% (v/v) of alginate beads containing NH4(+)-reducing bacteria was used, removal efficiency of NH4(+) was 63% after 240 h. When a full-scale SBR system (available volume = 83 m(3)) with 0.1% (v/v) of alginate-coated light-expanded clay aggregates beads containing NH4(+)-reducing bacteria was used, removal efficiency of NH4(+) by the full-scale intermittent aeration SBR (IA-SBR) was significantly different from both traditional intermittent aeration SBR (T-SBR) and the continuous aeration SBR with AL beads containing NH4(+)-reducing bacteria (P < 0.05). In summary, the IA-SBR with AL beads can significantly promote removal efficiency of NH4(+) on farm.
authors.affiliation: Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan and Bioenergy Research Center, National Taiwan University, Taipei, Taiwan E-mail: jjsu@ntu.edu.tw.
authors.forename: Jung-Jeng
authors.initials: JJ
authors.lastname: Su
authors.affiliation: Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan and Bioenergy Research Center, National Taiwan University, Taipei, Taiwan E-mail: jjsu@ntu.edu.tw.
authors.forename: Yuan-Chie
authors.initials: YC
authors.lastname: Chang
authors.affiliation: Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan and Bioenergy Research Center, National Taiwan University, Taipei, Taiwan E-mail: jjsu@ntu.edu.tw.
authors.forename: Shun-Ming
authors.initials: SM
authors.lastname: Huang
mesh_terms: D064751:Ammonium Compounds / Q000737:chemistry / Q000378:metabolism*; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D019149:Bioreactors; D006799:Housing, Animal; D013552:Swine; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000378:metabolism*
chemical_list: D064751:Ammonium Compounds; D014874:Water Pollutants, Chemical