Microbial monitoring of ammonia removal in a UASB reactor treating pre-digested chicken manure with anaerobic granular inoculum

Gömeç Ç., Pekyavas G., Sapmaz T., Aydin S., Ince B., Akyol C., ...Daha Fazla

BIORESOURCE TECHNOLOGY, cilt.241, ss.332-339, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 241
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.biortech.2017.05.070
  • Dergi Adı: BIORESOURCE TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.332-339
  • Anahtar Kelimeler: Ammonia removal, Anammox, Chicken manure, Next generation sequencing, Planctomycetes, UASB reactor, WASTE-WATER TREATMENT, NITROGEN REMOVAL, ANAMMOX PROCESS, POULTRY MANURE, START-UP, DENITRIFICATION, SLUDGE, PERFORMANCE, OXIDATION, BACTERIA
  • İstanbul Üniversitesi Adresli: Hayır

Özet

Performance and microbial community dynamics in an upflow anaerobic sludge bed (UASB) reactor coupled with anaerobic ammonium oxidizing (Anammox) treating diluted chicken manure digestate (Total ammonia nitrogen; TAN = 123 +/- 10 mg/L) were investigated for a 120-d operating period in the presence of anaerobic granular inoculum. Maximum TAN removal efficiency reached to above 80% with as low as 20 mg/L TAN concentrations in the effluent. Moreover, total COD (tCOD) with 807 +/- 215 mg/L in the influent was removed by 60-80%. High-throughput sequencing revealed that Proteobacteria, Actinobacteria, and Firmicutes were dominant phyla followed by Euryarchaeota and Bacteroidetes. The relative abundance of Planctomycetes significantly increased from 4% to 8-9% during the late days of the operation with decreased tCOD concentration, which indicated a more optimum condition to favor ammonia removal through anammox route. There was also significant association between the hzsA gene and ammonia removal in the UASB reactor. (C) 2017 Elsevier Ltd. All rights reserved.