title: Removal of organic matter and nitrogen in swine wastewater using an integrated ion exchange and bioelectrochemical system.
abstract: Swine wastewater was treated using an integrated ion exchange and bioelectrochemical system. This system contains three chambers separated by a cation exchange membrane (CEM) and an anion exchange membrane (AEM). Each chamber acted as a bioanode chamber, an aerated biocathode chamber, and a denitrification chamber. To accelerate the ammonium transportation through CEM, a bioelectrochemical system was installed between bioanode and aerated biocathode. The current was provided by a programmable DC power supply. The average chemical oxygen demand (COD) removal efficiencies at applied voltages of 0, 1 and 3 V were 65.6%, 75.4% and 80.6%, respectively. Unlike the COD removal, the total nitrogen removal was proportional to the ammonium flux through the CEM. The average total nitrogen removal efficiencies at the applied voltages of 0, 1 and 3 V were 37.0%, 63.1% and 70.5%, respectively.
authors: Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu, Jeongeup, Jeollabuk-do 580-185, Republic of Korea. Electronic address: seungjoolim@gmail.com.
authors: Seung Joo
authors: SJ
authors: Lim
authors: Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu, Jeongeup, Jeollabuk-do 580-185, Republic of Korea.
authors: Tak-Hyun
authors: TH
authors: Kim
mesh_terms: D064751:Ammonium Compounds / Q000302:isolation & purification; D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D006863:Hydrogen-Ion Concentration; D007474:Ion Exchange; D009584:Nitrogen / Q000302:isolation & purification*; D009930:Organic Chemicals / Q000302:isolation & purification*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification
chemical_list: D064751:Ammonium Compounds; D009584:Nitrogen; D009930:Organic Chemicals; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Bioelectrochemical system; Ion exchange; Nitrogen; Organic matter