Swine wastewater treatment using a unique sequence of ion exchange membranes and bioelectrochemical system.
An ion exchange biological reactor (IEBR) treated organic matter and nitrogen in swine wastewater at 23 °C. The enhanced IEBR enhanced the ammonium flux by electrochemical attraction. The abiotic ammonium fluxes at the applied voltage of 0, 1, and 3 V were 1.33, 1.79, and 2.73 mg/m(2)/s, respectively. In the meantime, the ammonium fluxes caused by biological nitrification at the applied voltage of 0, 1, and 3 V were 1.54, 2.07, and 3.59 mg/m(2)/s, respectively. Removal of organic matter and nitrogen in swine wastewater was proportional to the applied voltage. The average SCOD removal efficiencies at the applied voltage of 0, 1, and 2V were 59.7%, 60.2%, and 67.0%, respectively. The average total nitrogen removal efficiencies at the applied voltage of 0, 1, and 2V were 39.8%, 49.5%, and 58.7%, respectively.
Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 1266 Sinjeong, Jeongeup, Jeollabuk-do 580-185, Republic of Korea.
Seung Joo
SJ
Lim
Wooshin
W
Park
Tak-Hyun
TH
Kim
In Hwan
IH
Shin
D000641:Ammonia / Q000032:analysis; D000818:Animals; D061249:Batch Cell Culture Techniques; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D002412:Cations; D004560:Electricity; D055664:Electrochemical Techniques / Q000295:instrumentation* / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007474:Ion Exchange; D008567:Membranes, Artificial; D009038:Motion; D058465:Nitrification; D009584:Nitrogen / Q000032:analysis / Q000302:isolation & purification; D009930:Organic Chemicals / Q000302:isolation & purification; D000644:Quaternary Ammonium Compounds / Q000032:analysis; D013552:Swine; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
D002412:Cations; D008567:Membranes, Artificial; D009930:Organic Chemicals; D000644:Quaternary Ammonium Compounds; D000641:Ammonia; D009584:Nitrogen