Anaerobic digestion for the treatment of sludge in wastewater treatment plants has been reported to produce a low organic loaded effluent with an acceptable economic cost. But in the last years, new regulations and the increasing sludge production invite us to find an alternative and/or to improve the process efficiency. Moreover, the use of the effluent as fertilizer in agriculture imposes more restrictions on digestion process product and its micropollutant contents to protect the environment. In this study, a performance of the anaerobic digestion under mesophilic and thermophilic conditions at different hydraulic retention times (HRT) is assessed and the removal efficiencies of two important compounds or family compounds (Polycyclic Aromatic Hydrocarbons, PAH, and Di-2-(Ethyl-Hexyl)-Phthalate, DEHP) are evaluated. A positive effect of thermophilic temperature was observed on both micropollutants' biodegradation. However, HRT effect also had an important role for DEHP and low molecular weighted PAH removal.
Skip Nav Destination
Article navigation
Research Article|
April 01 2006
Biodegradation of PAH and DEHP micro-pollutants in mesophilic and thermophilic anaerobic sewage sludge digestion
T. Benabdallah El-Hadj;
T. Benabdallah El-Hadj
1Department of Chemical Engineering, University of Barcelona, Martí i Franquès, 1, 6th floor, 08028 Barcelona, Spain
Search for other works by this author on:
J. Dosta;
J. Dosta
1Department of Chemical Engineering, University of Barcelona, Martí i Franquès, 1, 6th floor, 08028 Barcelona, Spain
Search for other works by this author on:
J. Mata-Álvarez
1Department of Chemical Engineering, University of Barcelona, Martí i Franquès, 1, 6th floor, 08028 Barcelona, Spain
E-mail: jmata@ub.edu
Search for other works by this author on:
Water Sci Technol (2006) 53 (8): 99–107.
Citation
T. Benabdallah El-Hadj, J. Dosta, J. Mata-Álvarez; Biodegradation of PAH and DEHP micro-pollutants in mesophilic and thermophilic anaerobic sewage sludge digestion. Water Sci Technol 1 April 2006; 53 (8): 99–107. doi: https://doi.org/10.2166/wst.2006.240
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Impact Factor 1.915
CiteScore 3.3 • Q2
13 days submission to first
decision
1,439,880 downloads in 2021