Seasonal changes of contamination removal in constructed wetlands systems
DOI:
https://doi.org/10.15626/Eco-Tech.2003.039Nyckelord:
municipal sewage, constructed wetlands, contaminations removal, vegetation seasonAbstract
The investigation was carried out at two different hybrid constructed wetlands, which
treated municipal sewage after mechanical treatment from small villages in Pomeranian
Region, In all facilities first step of biological treatment were horizontal flow beds, The
main difference concerns configuration of the facilities and sewage distributions systems
into vertical flow beds, The measurement period was divided into vegetation (from April
to October) and outside vegetation seasons (from November to March) for all analysed
facilities.
The results allowed for estimation of efficiency removal of different contaminations in
both measurements seasons. Comparison of the amount of sewage and loads of
contamination inflowing and outflowing from the facilities are presented. Achieved
results make it possible to estimate the rate of organic matter decomposition and nitrogen
removal in vegetation and outside vegetation seasons.
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Referenser
Birkedal K., Brix H., Johansen N.H., 1993 Wastewater treatment in constructed wetlands. Designers manual. Danish-Polish Post-Graduate Course on "Low technology wastewater treatment" Technical University of Gdansk, Poland
Cooper P., de Maeseneer J., 1996, Hybrid systems -what is the best way to arrange the vertical and horizontal-flow stage? IA WQ Specialist Group on Use of Macrophytes in Water Pollution Control, December 1996, : 8-13
Haberl R., Perfler R., Laber J., Grabher D., 1998 Austria. Vymazal J., Brix H., Cooper P.F., Green M.B., & Haber! R., (Ed.) In: Constructed wetlands for wastewater treatment in Europe. Backhuys Publishers, Leiden , :67-76
Obarska-Pempkowiak H., Ozimek T., 2000 Efficiency of wastewater treatment in an improved constructed wetland, Polish Arch. Hydrobiology 47,247-256
Obarska-Pempkowiak H., Gajewska M., 2003, Fluctuations in the organic matter decomposition rate and nitrogen speciation in vegetation and outside vegetation seasons in a hybrid wetland system, (Eds.) Ulo Mander, Christina Vohla and Age Poom In: Conference proceedings, EU 5th FP RTD PRIMROSE "Process Based Integrated Management of Constructed and Riverine Wetlands for Optimal Control of Wastewater at Catchment Scale"
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