- 作者: 黃武章,張順原,王彥博,林哲陽,陳威銓
- 作者服務機構: National Ping-Tun University of Science and Technology, Department of Environmental Science and Engineering, Ping-Tun 91201, Taiwan, R.O.C.
- 中文摘要: The leaching behaviors of heavy metals from semi-dry scrubber (SDS) residues of municipal solid waste incineration (MSWI) plants are re-investigated. The most leachable heavy metals in semi-dry scrubber residues from municipal solid waste incinerators are found to be chromium ions (Cr(III) and Cr(VI)), but neither lead nor cadmium. Both of the leachabilities of Cr(III) and Cr(VI) in MSWI scrubber residue are a function of the CaO/Al2O3 ratio of residues. The pH-dependent leaching behaviors are only observed in the case of Cr(III), but not for Cr(VI). Our results show that it is worth recycling SDS residues which possess a lower chemical composition ratio of CaO/Al2O3, in order to reduce the potential risk of toxic leaching of chromium species.
- 英文摘要: --
- 中文關鍵字: Incineration; Residues; Toxicity.
- 英文關鍵字: --