Characterization of lead, chromium, and cadmium in dust emitted from municipal solid waste incineration plants
Characterization of lead, chromium, and cadmium in dust emitted from municipal solid waste incineration plants
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城市固体废物焚烧厂排放粉尘中铅、铬和镉的特征
DOI：
10.1088/1742-6596/430/1/012095
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
M.
中科院分区：
文献类型：
--
作者：
Shiota;K.;Imai;G.;Oshita;K.;Takaoka;M.
粉尘来自城市固体废物焚烧炉(MSWI)。挥发性有毒重金属在较小的粉尘颗粒中含量较高，并影响细颗粒物<；2.5μm(PM2.5)等颗粒物的毒性。然而，人们对这些金属在细小尘埃颗粒中的性质知之甚少。为此，利用X射线吸收精细结构(XAFS)光谱技术，研究了两个垃圾处理厂烟囱和除尘器入口处采集的9种不同粒度的垃圾粉尘中铅、铬、镉的化学状态。对除尘器入口粉尘的XAFS光谱分析表明，较细的粉尘以PbCl2为主，也有少量PbSiO3，较粗的粉尘以铬的形式存在，含有较多有毒的铬(VI)物种，所有粉尘都含有CdCl2。虽然除尘器几乎去除了所有的铅，但微量的PbCl2在通过除尘器后仍留在烟道气中。
The dust is emitted from municipal solid waste incinerators (MSWIs). Volatile toxic heavy metals are abundant in smaller dust particles and influence the toxicity of particulate matter such as fine particles< 2.5 μm (PM 2.5). However, little is known about the properties of these metals in fine dust particles. Therefore, X-ray absorption fine structure (XAFS) spectroscopy was used to investigate the chemical states of lead (Pb), chromium (Cr), and cadmium (Cd) in MSWI dust collected for nine particle size fractions at the inlet of the dust collector and the stacks of two MSWI plants. XAFS spectroscopy of the dust in the inlet of the dust collectors showed that finer dust contained predominantly Pb as PbCl 2 with some PbSiO 3, coarser dust consisted of Cr forms, including more toxic Cr (VI) species, and all dust contained CdCl 2. Although the dust collector removed almost all of the Pb, trace amounts of PbCl 2 remained in the stack gas after passing through the dust collector.
利用 XAFS 光谱法直接分析废物处理设施飞灰中的铅、锌和锑形态
DOI：
--
发表时间：
2005
期刊：
Physica Scripta T115
影响因子：
--
作者：
M.takaoka;T.Yamamoto;T.Tamaka;N.Takeda;K.Oshita;T.Uruga
通讯作者：
T.Uruga
影响因子：
1.6
作者：
Funatsuki, Atsushi;Takaoka, Masaki;Takeda, Nobuo
通讯作者：
Takeda, Nobuo
影响因子：
0.2
作者：
Atsushi Funatsuki;M. Takaoka;D. Kokubu;K. Oshita;N. Takeda
通讯作者：
N. Takeda