title: Nitrogen removal performance of anaerobic ammonia oxidation (ANAMMOX) in presence of organic matter.
abstract: A sequencing batch reactor (SBR) was used to test the nitrogen removal performance of anaerobic ammonium oxidation (ANAMMOX) in presence of organic matter. Mesophilic operation (30 ± 0.5 °C) was performed with influent pH 7.5. The results showed, independent of organic matter species, ANAMMOX reaction was promoted when COD was lower than 80 mg/L. However, specific ANAMMOX activity decreased with increasing organic matter content. Ammonium removal efficiency decreased to 80% when COD of sodium succinate, sodium potassium tartrate, peptone and lactose were 192.5, 210, 225 and 325 mg/L, respectively. The stoichiometry ratio resulting from different OM differed largely and R1could be as an indicator for OM inhibition. When COD concentration was 240 mg/L, the loss of SAA resulting from lactose, peptone, sodium potassium tartrate and sodium succinate were 28, 36, 50 and 55%, respectively. Sodium succinate had the highest inhibitory effect on SAA. When ANAMMOX process was used to treat wastewater containing OM, the modified Logistic model could be employed to predict the NREmax.
authors.affiliation: School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Zhu
authors.affiliation: School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
authors.forename: Peiyu
authors.initials: P
authors.lastname: Zhang
authors.affiliation: School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
authors.forename: Deshuang
authors.initials: D
authors.lastname: Yu
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
authors.forename: Huiyu
authors.initials: H
authors.lastname: Dong
authors.affiliation: School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China. ljin0532@126.com.
authors.forename: Jin
authors.initials: J
authors.lastname: Li
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D000693:Anaerobiosis / Q000187:drug effects; D001673:Biodegradation, Environmental / Q000187:drug effects; D003198:Computer Simulation; D007700:Kinetics; D016015:Logistic Models; D009584:Nitrogen / Q000302:isolation & purification*; D009930:Organic Chemicals / Q000494:pharmacology*; D010084:Oxidation-Reduction; D013816:Thermodynamics
chemical_list: D009930:Organic Chemicals; D000641:Ammonia; D009584:Nitrogen
keywords: ANAMMOX; Denitrification; Kinetic model; Nitrogen removal; Organic matter