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 language | English |
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| Title of host publication | Joint 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 Publication | Volos, Greece |
| Pages | 0-0 |
| Number of pages | 1 |
| Publication status | Published - 30 May 2009 |
| Event | Joint 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
| Conference | Joint Conference of the Greek Hydrotechnical Union and the Greek Committee for Water Resources Management, Integrated Water Resources Management under Conditions of Climate Change |
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| Period | 30/05/09 → … |