TY - GEN
T1 - Stabilization of sludge by a combined chemical and mechanical method
AU - Chu, J.
AU - Lim, T. T.
AU - Goi, M. H.
PY - 2006
Y1 - 2006
N2 - A large quantity of dewatered sewage sludge and other waste materials are produced each year in Singapore. The disposal of these waste materials has become a problem. On the other hand, a large amount of fill materials are required for land reclamation. A study to use the sewage sludge and other waste materials for land reclamation was carried out. Portland cement was used as a binder to stabilize the sludge. Another waste material, copper slag, was used as filler. The study shows that the stabilization effect of cement can be greatly enhanced if the cement mixed sludge can be consolidated by mechanical means. Therefore, it is cost-effective to adopt a combined chemical and mechanical method to treat the sludge. Leaching tests were also conducted to show that heavy metals were largely retained in the residual fraction, rendering the stabilized sludge to be more resistant in leaching.
AB - A large quantity of dewatered sewage sludge and other waste materials are produced each year in Singapore. The disposal of these waste materials has become a problem. On the other hand, a large amount of fill materials are required for land reclamation. A study to use the sewage sludge and other waste materials for land reclamation was carried out. Portland cement was used as a binder to stabilize the sludge. Another waste material, copper slag, was used as filler. The study shows that the stabilization effect of cement can be greatly enhanced if the cement mixed sludge can be consolidated by mechanical means. Therefore, it is cost-effective to adopt a combined chemical and mechanical method to treat the sludge. Leaching tests were also conducted to show that heavy metals were largely retained in the residual fraction, rendering the stabilized sludge to be more resistant in leaching.
UR - http://www.scopus.com/inward/record.url?scp=34249001988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34249001988&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34249001988
SN - 0727734741
SN - 9780727734747
T3 - 5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress
SP - 1313
EP - 1320
BT - 5th ICEG Environmental Geotechnics
T2 - 5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - International Society of Soil Mechanics and Geotechnical Engineering's (ISSMGE) 5th International Congress
Y2 - 26 June 2006 through 30 June 2006
ER -