Rapid transformation of asbestos into harmless waste by a microwave rotary furnace: Application of microwave heating to rubble processing of the 2011 tohoku Earthquake

Keiichiro Kashimura, Takumi Yamaguchi, Motoyasu Sato, Saori Yoneda, Takamasa Kishima, Satoshi Horikoshi, Noboru Yoshikawa, Tomohiko Mitani, Naoki Shinohara

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

There is a need for a detoxification system that is capable of processing debris in the aftermath of urban disasters into less-harmful waste, quickly and efficiently. The research reported in this paper investigated the potential for transforming asbestos-cement into harmless waste using microwave heating, in small-scale and full-scale experiments. The small-scale setup investigated the relationship between temperature and the number of asbestos fibers in cement slates at various microwave treatment times, during which both the internal and surface temperatures were measured for the samples. Subsequently, the full-size apparatus, which was capable of processing 2 t/day of asbestos-contaminated debris, was constructed at a location affected by the Tohoku earthquake in 2011. This system could successfully process 80 kg/h of asbestos-contaminated material and 80-160 kg/h of wood waste. The test results demonstrate that compact asbestos-treatment systems possess efficiency advantages and can operate in full compliance with applicable legal restrictions.

Original languageEnglish
Article number04014041
JournalJournal of Hazardous, Toxic, and Radioactive Waste
Volume19
Issue number3
DOIs
Publication statusPublished - 2015 Jul 1

Keywords

  • Asbestos-cement
  • Microwave heating
  • Microwave rotary furnace
  • Tohoku earthquake
  • Toxic waste

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Water Science and Technology
  • Geotechnical Engineering and Engineering Geology
  • Waste Management and Disposal

Fingerprint Dive into the research topics of 'Rapid transformation of asbestos into harmless waste by a microwave rotary furnace: Application of microwave heating to rubble processing of the 2011 tohoku Earthquake'. Together they form a unique fingerprint.

Cite this