Preparation and characterization of activated carbon from sewage sludge: carbonization step

Sébastien Rio , Catherine Faur-Brasquet (1, 2) , Laurence Le Coq (1, 2) , Didier Lecomte (3) , Pierre Le Cloirec (1, 2)

1 Mines Nantes - Mines Nantes
2 GEPEA - Laboratoire de génie des procédés - environnement - agroalimentaire
3 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

Sewage sludges produced from wastewater treatment plants continue to create environmental problems in terms of volume and method of valorization. Thermal treatment of sewage sludge is considered as an attractive method in reducing sludge volume which at the same time produces reusable by-products. This paper deals with the first step of activated carbon production from sewage sludge, the carbonization step. Experiments are carried out on viscous liquid sludge and limed sludge by varying carbonization temperature and heating rate. The results show that carbonized residue properties are interesting for activated carbon production.

Domaines: Sciences de l'ingénieur [physics]

Sébastien Rio, Catherine Faur-Brasquet, Laurence Le Coq, Didier Lecomte, Pierre Le Cloirec. Preparation and characterization of activated carbon from sewage sludge: carbonization step. Water Science and Technology, 2004, 49 (1), pp.139-146. ⟨10.2166/wst.2004.0041⟩. ⟨hal-00945333⟩