Stabilisation and mineralisation of sludge in reed bed system after 10-20 years of operation (Contributo in atti di convegno)

Type
Label
  • Stabilisation and mineralisation of sludge in reed bed system after 10-20 years of operation (Contributo in atti di convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • Nielsen, Steen; Peruzzi, Eleonora; Macci, Cristina; Doni, Serena; Masciandaro, Grazia (2012)
    Stabilisation and mineralisation of sludge in reed bed system after 10-20 years of operation
    in XIII International Conference on Wetland Systems for Water Pollution Control, Perth, Australia, 25-29 novembre 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Nielsen, Steen; Peruzzi, Eleonora; Macci, Cristina; Doni, Serena; Masciandaro, Grazia (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • ID_PUMA: /cnr.ise/2012-A2-005 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Orbicon - Roskilde - Denmark; CNR-ISE, Sede distaccata di Pisa (literal)
Titolo
  • Stabilisation and mineralisation of sludge in reed bed system after 10-20 years of operation (literal)
Abstract
  • Sludge stabilisation and mineralisation occurring in the sludge residue within the sludge treatment reed bed systems during periods of operation between 10 - 21 years in three different systems receiving sludge from urban wastewater treatment plants situated in Denmark. Samples were taken in the sludge residues along the entire profiles, in order to compare the effectiveness of the sludge stabilisation process in the three systems. Particular attention was given to the stabilisation process occurring within the reed beds; in fact, parameters correlated to biochemical properties of organic sludge matter have been determined. Statistical procedures were used to evaluate how the biochemical processes influence the quality of sludge organic matter in the three systems. The level of total organic carbon and total nitrogen had a similar trend along the profile: their concentration decreased with increasing depth, reaching very low levels at the deepest layers. The same trend was also observed for the water soluble carbon, N-NH3, b-glucosidase and urease activities, hydrolytic enzymes linked to C and N cycles, respectively: their values decreased dramatically with increasing depth, meaning that the level of mineralisation of the organic matter was higher in the deepest layers. The determination of extracellular enzymes bound to humic substances and humic carbon permitted to evaluate the stabilisation of organic sludge matter, and also allowed to individuate in which ways the sludge was stabilised, in terms of mineralisation and humification of the organic matter. (literal)
Editore
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Editore di
Insieme di parole chiave di
data.CNR.it