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排序方式: 共有114条查询结果,搜索用时 46 毫秒
111.
112.
Renjie Chen Shijie Yuan Sisi Chen Hanlin Ci Xiaohu Dai Xiankai Wang Chong Li Dianchang Wang Bin Dong 《环境科学学报(英文版)》2022,34(1):380-391
Anaerobic digestion and incineration are widely used sewage sludge(SS) treatment and disposal approaches to recovering energy from SS, but it is difficult to select a suitable technical process from the various technologies. In this study, life-cycle assessments were adopted to compare the energy-and greenhouse gas-(GHG) emission footprints of two sludge-to-energy systems. One system uses a combination of AD with incineration(the AI system),whereas the other was simplified by direct incineration... 相似文献
113.
研究了饱和温度为200 ℃的水热条件下绿矾对垃圾焚烧飞灰中重金属的稳定效果,并与常温常压下的稳定效果进行了对比.研究结果表明,高温水热条件有利于Pb特别是Cr(Ⅵ)的稳定,对Cd的稳定无明显影响,同时绿矾的用量大为降低,降低了药剂的成本. 相似文献
114.
Current status and perspectives of accelerated carbonation processes on municipal waste combustion residues 总被引:1,自引:0,他引:1
Costa G Baciocchi R Polettini A Pomi R Hills CD Carey PJ 《Environmental monitoring and assessment》2007,135(1-3):55-75
The increasing volumes of municipal solid waste produced worldwide are encouraging the development of processes to reduce
the environmental impact of this waste stream. Combustion technology can facilitate volume reduction of up to 90%, with the
inorganic contaminants being captured in furnace bottom ash, and fly ash/APC residues. The disposal or reuse of these residues
is however governed by the potential release of constituent contaminants into the environment. Accelerated carbonation has
been shown to have a potential for improving the chemical stability and leaching behaviour of both bottom ash and fly ash/APC
residues. However, the efficacy of carbonation depends on whether the method of gas application is direct or indirect. Also
important are the mineralogy, chemistry and physical properties of the fresh ash, the carbonation reaction conditions such
as temperature, contact time, CO2 partial pressure and relative humidity. This paper reviews the main issues pertaining to the application of accelerated carbonation
to municipal waste combustion residues to elucidate the potential benefits on the stabilization of such residues and for reducing
CO2 emissions. In particular, the modification of ash properties that occur upon carbonation and the CO2 sequestration potential possible under different conditions are discussed. Although accelerated carbonation is a developing
technology, it could be introduced in new incinerator facilities as a “finishing step” for both ash treatment and reduction
of CO2 emissions. 相似文献