Application of ANAMMOX reaction to improve nitrogen purification of hybrid subsurface flow constructed wetland systems

2016 Fiscal Year Final Research Report

• Project/Area Number: 26292185
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: Kunihiko Kato 国立研究開発法人農業・食品産業技術総合研究機構, 東北農業研究センター 生産環境研究領域, 上級研究員 (40450324)
• Co-Investigator(Kenkyū-buntansha): 和木 美代子 国立研究開発法人農業・食品産業技術総合研究機構, 畜産研究部門畜産環境研究領域, 上級研究員 (10355092) ; 井上 京 北海道大学, (連合)農学研究科(研究院), 教授 (30203235)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 伏流式人工湿地 / アナモックス / 窒素削減 / リアルタイムPCR / 排水処理 / 水質浄化 / 硝化 / 脱窒

Outline of Final Research Achievements

We surveyed the anammox presence in the 7-full-scale hybrid type CWs treating wastewater from livestock farming or livestock products industry, and clarified the relationship between wastewater condition and anammox concentration. Anammox existed with relatively higher concentration in the CWs treating swine wastewater or dairy wastewater with the last bed with vertical flow or before the last bed with horizontal flow, where BOD and COD concentration were low and NO2- and NO3- concentrations were high. The high concentration of anammox DNA continued, however they dropped in winter season with air temperature drops less than zero. This study provides new and useful information to intensify nitrogen removal in hybrid CWs by adding anammox treatment.

Free Research Field

農業環境工学