Start-up Water Purification Performance of Multi-stage Vertical Flow Constructed Wetland Treating Milking Parlor Wastewater and Paddock Run-off

• NAKANO KAZUNORI

  Graduate School of Engineering, Tohoku University,

• CHIGIRA JUNKI

  Graduate School of Engineering, Tohoku University,

• SONG HAI-LIANG

  Graduate School of Engineering, Tohoku University,

• YANO TOKUO

  Graduate School of Engineering, Tohoku University,

• MARUO CHIKAKO

  Graduate School of Engineering, Tohoku University,

• NOMURA MUNEHIRO

  Graduate School of Engineering, Tohoku University,

• AIKAWA YOSHIO

  Graduate School of Engineering, Tohoku University,

• NISHIMURA OSAMU

  Graduate School of Engineering, Tohoku University,

Bibliographic Information

Other Title

• パーラー排水およびパドック流出水の浄化処理を行う多段鉛直流型人工湿地のスタートアップ性能

Abstract

To investigate the contribution of the treatment stages as well as the effect of vegetation and hydraulic condition on the start-up water purification performance during 8 month operation including winter, a full-scale experimental study was conducted on a 5-stage subsurface vertical flow constructed wetland treating daily milking parlor wastewater and non-periodical paddock run-off. Despite great variation of pollution loading caused by paddock run-off due to seasonal rainfall, efficient removal was attained for BOD, suspended solid (SS), total Kjeldahl nitrogen and total phosphorus with the average removal efficiency of 94.6, 87.3, 83.6 and 89.9%, respectively. Total nitrogen (TN) removal was, however, not stable and the average removal efficiency was 65.5%. The contribution of the number of the treatment stages was significant only for SS removal. Among three conditions, the best performance was obtained with unvegetation under unsaturated condition. The results of this study implied insufficiency of mature of reed rhizosphere during the study period. Even negative effect of the vegetation on the treatment feasibility in winter during start-up operation was suggested.

Journal

• Japanese Journal of Water Treatment Biology

  Japanese Journal of Water Treatment Biology 47 (3), 103-110, 2011

  Japanese Society of Water Treatment Biology

Keywords

• multi-stage treatment
• vertical flow constructed wetland
• start-up performance
• vegetation
• saturated condition

Details

• CRID: 1390001204963581824
• NII Article ID: 10029737529
• NII Book ID: AN00351126
• DOI: 10.2521/jswtb.47.103
• ISSN: 18810438
• ISSN: 09106758
• NDL BIB ID: 11245146
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11245146
• Web Site: https://www.jstage.jst.go.jp/article/jswtb/47/3/47_103/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed