Open AccessThe bottom ash from municipal solid waste and sewage sludge co-pyrolysis technology: characteristics and performance in the cement mortar and concrete
Author(s) -
ErPing Li,
Haoyun Chen,
Fenglian Huang,
Shiqing Tian,
Zhiyuan Yu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/585/1/012091
Subject(s) - pyrolysis , bottom ash , waste management , mortar , sewage sludge , municipal solid waste , cement , flexural strength , materials science , fly ash , environmental science , sewage , metallurgy , composite material , engineering
To efficiently and environmentally treat the municipal solid waste (MSW), co-pyrolysis technology was further developed by adding high heat value substance of sewage sludge (SS). As the co-pyrolysis technology for MSW and SS has been popularly developed, the production of the bottom ash is constantly increased. The treatment and utilization of this part of bottom has become an urgent issue. This work investigated the basic characteristics of the co-pyrolysis bottom ash and evaluated the application possibility of the co-pyrolysis bottom ash as building materials. The co-pyrolysis bottom ash possessed high chemical contents of CaO + MgO/SiO 2 + Al 2 O 3 over 88 %. Excellent performance of comprehensive and flexural strength for cement mortar and concrete were realized with the co-pyrolysis bottom ash incorporated.