2010 Fiscal Year Final Research Report

Absorption of CO2 in Carbonated MSWI residues

Research Project

Project/Area Number	21760420
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Civil and environmental engineering
Research Institution	Prefectural University of Hiroshima
Principal Investigator	SAKITA Shogo Prefectural University of Hiroshima, 生命環境学部, 准教授 (80398099)
Project Period (FY)	2009 – 2010
Keywords	都市ごみ / 焼却残渣 / 炭酸化 / 二酸化炭素
Research Abstract	It assimilated carbon dioxide into the MSWI bottom ash (carbonation), and the durability in a long-term effect of the pure water quality and processing of making to the carbonic acid was examined by the upward style column pass examination. The substantial change was not admitted and was steady though filled abolition standard (pH5.8-8.6) from an initial stage, switched to the nitric acid of pH4, and passed the ooze water pH of the processing of making to the carbonic acid incineration ash. Moreover, a simple LCA evaluation when processing of making to the carbonic acid was executed to the incineration ash as a preprocessing of reclamation it was executed. In the processing of making to the carbonic acid ash, it was presumed to be able respectively to reduce LCC and LCCO2 by about 60 percent compared with the normal ash.