Comparison of microbial community structure in a biological nutrient removal process at various stages of operation. Issue 50 (26th October 2016)

• Record Type: Journal Article
• Authors: Manav Demir, Neslihan; Debik, Eyup; Ozkaya, Bestami; Coskun, Tamer
• Is Part Of: Desalination and water treatment. Volume 57:Issue 50(2016)
• Page Start: 23675
• Page End: 23685
• Publication Date: 2016-10-26
• Subjects: Biological nutrient removal -- Community structure -- Domestic wastewater -- Modified Bardenpho; Saline water conversion -- Periodicals; Saline water conversion; Water -- Purification; Periodicals; 628.167
• DOI: 10.1080/19443994.2015.1137494
• Languages: English
• ISSNs: 1944-3994

Abstract

Abstract: In this study, the modified five-stage Bardenpho process was used for the treatment of domestic wastewater in a pilot-scale reactor with an active volume of 8.6 m 3 . The hydraulic retention time of the process was 16 h and the sludge retention time was 15 d. The removal efficiencies for chemical oxygen demand, total Kjeldahl nitrogen, ammonia nitrogen (NH3 –N), total phosphorus, phosphate phosphorus (PO4 -P), suspended solids, and volatile suspended solids were obtained as 87 ± 5%; 86 ± 12%; 93 ± 14%; 89 ± 9%; 88 ± 8%; 94 ± 4%, and 94 ± 4%, respectively. The microbial community was also determined in the process by PCR–DGGE–Sequencing molecular techniques. While Nitrosomonas sp., Nitrosospira sp., Nitrosomonas europaea, Dechloromonas sp., Candidatus Accumulibacter sp., Bacteroidetes bacterium, Firmicutes were observed during the start-up period, Nitrosomonas sp., Nitrosospira sp., N. europaea, Dechloromonas sp., C. accumulibacter sp. were observed after the steady-state period.