title: Unprecedented development of anammox in presence of organic carbon using seed biomass from a tannery Common Effluent Treatment Plant (CETP).
abstract: This work describes development of a microbial consortium dominant in anammox in presence of organic carbon (available through cell lyses) by employing simple sequencing batch operation in 23 cycles exceeding 400days. Seed biomass from a tannery Common Effluent Treatment Plant (CETP) was enriched for anammox and attained maximum removals of NH4-N (95%) and NO2-N (98%). The anammox was confirmed by nitrogen mass balance in a controlled batch experiment and by DNA extraction-PCR-agarose gel electrophoresis. The effective anammox followed first order reaction kinetics with rate constant of 0.0141/h and half-saturation constant of 10.6mg/L. Evidence for coexistence of denitrification (99% NO2-N removal) and anammox (57.8% NH4-N removal) was demonstrated. This study opens-up possible application of microbial consortium dominant in anammox for simultaneous removal of ammonia and organic carbon from wastewaters.
authors: Environmental Engineering Division, School of Mechanical and Building Sciences, VIT University Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India. Electronic address: anjaligopakumar@vit.ac.in.
authors: G
authors: G
authors: Anjali
authors: Environmental Engineering Division, School of Mechanical and Building Sciences, VIT University Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India. Electronic address: pcsabumon@vit.ac.in.
authors: P C
authors: PC
authors: Sabumon
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D000693:Anaerobiosis / Q000187:drug effects; D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D002244:Carbon / Q000494:pharmacology*; D058440:Denitrification / Q000187:drug effects; D006863:Hydrogen-Ion Concentration / Q000187:drug effects; D007700:Kinetics; D009930:Organic Chemicals / Q000494:pharmacology*; D010084:Oxidation-Reduction / Q000187:drug effects; D010100:Oxygen / Q000378:metabolism; D013633:Tanning; D013696:Temperature; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000379:methods*
chemical_list: D009930:Organic Chemicals; D002244:Carbon; D000641:Ammonia; D010100:Oxygen
keywords: Anammox; Cell lyses; Denitrification; Organic carbon; Oxidation–reduction potential (ORP)