Natural Zeolite (Clinoptilolite) Filters for the effluent treatment of two pilot-scale Horizontal Subsurface Flow Constructed Wetlands

Alexandros Stefanakis, Vassilios Tsihrintzis

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

The present work describes the performance of two pilot-scale, horizontal subsurface flow constructed wetlands followed in series by natural zeolite-filters, which provided further treatment of the effluent of the two wetlands. The two constructed wetlands operated initially for two years, without the zeolite-filters (period A). Then, the two zeolite-filters (fine- and coarse-grained clinoptilolite) were added, and the systems operated for an additional year (period B). Filter performance proved to be more or less constant along period B, while highest removal rates were achieved at high temperatures. The addition of the two zeolite filters improved significantly the wetland effluent. The overall system (wetland and filter) removed about 90% of the influent organic matter, 85% of nitrogen and 70% of phosphorus, while the fine-grained zeolite filter proved to be more effective in the case of organic matter and nitrogen removal and the coarse-grained one in phosphorus retention.
Original languageEnglish
Title of host publicationJoint Conference of the Greek Hydrotechnical Union and the Greek Committee for Water Resources Management, Integrated Water Resources Management under Conditions of Climate Change
Place of PublicationVolos, Greece
Pages0-0
Number of pages1
Publication statusPublished - 30 May 2009
EventJoint Conference of the Greek Hydrotechnical Union and the Greek Committee for Water Resources Management, Integrated Water Resources Management under Conditions of Climate Change - Volos, Greece
Duration: 30 May 2009 → …

Conference

ConferenceJoint Conference of the Greek Hydrotechnical Union and the Greek Committee for Water Resources Management, Integrated Water Resources Management under Conditions of Climate Change
Period30/05/09 → …

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  • Cite this

    Stefanakis, A., & Tsihrintzis, V. (2009). Natural Zeolite (Clinoptilolite) Filters for the effluent treatment of two pilot-scale Horizontal Subsurface Flow Constructed Wetlands. In Joint Conference of the Greek Hydrotechnical Union and the Greek Committee for Water Resources Management, Integrated Water Resources Management under Conditions of Climate Change (pp. 0-0).