| Title | Sludge dewatering using macrophytes in a small wastewater treatment system: A case study of a pilot scale plant in Northern Italy |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2003 |
| Authors | Barbieri, A., Garuti G., Avolio F., and Bruni Stefania |
| Journal | Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering |
| Volume | 38 |
| Pagination | 2425-2433 |
| ISSN | 10934529 |
| Keywords | activated sludge, Biodegradation, Chemical oxygen demand, comparative study, concentration (parameters), conference paper, cost minimization analysis, denitrification, Dewatering, dry mass, Environmental, filtration, Fluid, Italy, macrophyte, Nitrogen, Percolation (fluids), Phragmites, Pilot plants, Poaceae, qualitative analysis, Seasons, Sewage sludge, Sludge dewatering, sludge treatment, summer, Waste disposal, waste water management, Wastewater treatment, Water analysis, Water Pollutants, Water Purification, winter |
| Abstract | A study was conducted on a system consisting of two beds of 12 m 2 each, planted with reeds and filled with sludge from an activated sludge plant dimensioned for 3000 p.e. During 2001, 10 kg of TS/m2 were loaded in each bed using sludge with a dry matter content of 3% during winter and of 0.5% in summer. The aim of the study was to evaluate parameters such as: COD, TSS, P-PO4 3-, N-NO2 -, N-NO3 -, N-NH4 - in percolation water, the dewatering capability of the two beds and to estimate N mass balance. The observations on dewatering process showed that dried sludge reached a content of 23% TS in winter and of 30% TS in summer. During summertime the plant did not release any percolation flow; in the rest of the year the concentrations of COD, TSS, P-PO4 3-, N-NO2 -, N-NH 4 - remained within bounds of the European directive (91/271/CEE). The N mass balance proved that 90% of N was removed by the denitrification process. |
| Notes | cited By 11 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0141844504&doi=10.1081%2fESE-120023449&partnerID=40&md5=7bf31f8195a866b376e927ca0f53ff14 |
| DOI | 10.1081/ESE-120023449 |
| Citation Key | Barbieri20032425 |
