Constructed wetlands can provide an effective and economical solution to landfill leachate treatment. In the article the performance of a CW for leachate treatment, consisting of two horizontal flow constructed wetlands (HF-CW) beds, working at the municipal landfill in Gdansk-Szadolki in the period 2004-2005 is being discussed. The plant has been operating since 2001. Clogging problems and surface flow occurred in the system because of insufficient hydraulic conductivity of the filter bed material. Neither the treatment efficiency nor effluent pollutant concentrations meet the design criteria, though quite high efficiencies of PAH (over 70% at both beds), Ntot and N-NH4 (61.7% for bed I and 51.6% for bed II) removal are obtained. The depletion of total alkalinity and pH increase confirm that nitrification process took place in the beds.
Authors
Additional information
- Category
- Publikacja monograficzna
- Type
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Language
- angielski
- Publication year
- 2008
