The performance of 4 constructed wetlands designed by IRIDRA Srl and operating in Tuscany (central Italy) has been monitored during the last three years. The 4 treatment systems have different sizes and characteristics: one single stage secondary treatment (150 p.e.); two secondary treatment plants with effluent reuse: one small (60 p.e) and the other big (350 p.e.); a tertiary treatment of effluents from an activated sludge plant with high hydraulic load fluctuation (5-500 p.e.). Due to geographical and economic constraints the four systems have high hydraulic and organic loading rates, neverthless the systems show very good removal performance of COD (62-95%), especially the ones with higher inflow COD concentrations (87-95%). Interesting results concerning also removal percentage of MBAS (42-88%) and ammonium (42-85%) were obtained, even though NH4+ concentration in the outflows of some of the plants, doesn't always comply with Italian quality standards.
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Research Article|
December 01 2001
Constructed wetlands for wastewater treatment in central Italy
G. Conte;
G. Conte
*IRIDRA S.r.l. -Via Lorenzo il Magnifico 70, 50129, Florence, Italy
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N. Matinuzzi;
N. Matinuzzi
*IRIDRA S.r.l. -Via Lorenzo il Magnifico 70, 50129, Florence, Italy
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L. Giovannelli;
L. Giovannelli
**A.R.P.A.T. (Regional Environmental Protection Agency), Dept. of Prato, Via Vittorio Veneto 9, Prato, Italy
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B. Pucci;
B. Pucci
*IRIDRA S.r.l. -Via Lorenzo il Magnifico 70, 50129, Florence, Italy
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F. Masi
F. Masi
*IRIDRA S.r.l. -Via Lorenzo il Magnifico 70, 50129, Florence, Italy
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Water Sci Technol (2001) 44 (11-12): 339–343.
Citation
G. Conte, N. Matinuzzi, L. Giovannelli, B. Pucci, F. Masi; Constructed wetlands for wastewater treatment in central Italy. Water Sci Technol 1 December 2001; 44 (11-12): 339–343. doi: https://doi.org/10.2166/wst.2001.0849
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