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The concentrations of respirable suspended particulates (PM 10 ), fine suspended particulates (PM 2.5 ) and nitrogen dioxide (NO 2 ) were measured in various locations over the territory of Hong Kong. In order to study the contributions of these pollutants from motor vehicles and their characteristics, the attention was focused on the roadside, street-level...
Separation of fine coke particles from fly ash was undertaken in a laboratory flotation cell. Almost 90% of particles were below 10 μm and one third of them was less than 2 μm. Fly ash was sampled directly from a surge bin in a power plant and from a refuse dump area. Collectors tested were kerosene and diesel oil, while MIBC and polyglycol-based agents were used as frothers. Use of 18 kg/t of...
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