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水镁石在环境领域中的应用与研究   总被引:1,自引:0,他引:1  
介绍了水镁石作为无卤阻燃和吸附材料在塑料阻燃、酸性废水处理、废水中的重金属去除以及烟气脱硫等方面的应用前景.合理的开发和利用水镁石。可以带来良好的经济效益和环境效益。对水镁石在材料阻燃和环境保护等领域的应用现状与前景进行了综合论述。  相似文献
2.
The impact of a typical municipal solid waste incinerator (MSWI) on polychlorinated biphenyl (PCB) concentrations in the surrounding soil was studied. Six stack gas samples were taken from the MSWI and 21 soil samples were collected from sampling sites between 300 and 1700 m from the MSWI stack. The total (∑PCB) concentrations of dioxin-like (dl) PCBs and indicator PCBs in the stack gas samples were between 3.41 and 34.3 ng/m3, and the corresponding toxic equivalents (TEQs) ranged from 4.45 to 66.9 pg WHO-TEQ/m3, with a mean of 28.6 pg WHO-TEQ/m3. A total of 2.43 g WHO-TEQ of PCBs per year was calculated to be released into the environment from MSWIs in China. The ∑PCB concentrations in the soil samples ranged from 28.0 to 264.4 pg/g, with mean and median values of 127.6 and 127.7 pg/g, respectively, while the TEQ values were between 0.020 and 0.18 pg WHO-TEQ/g, with mean and median values of 0.074 and 0.062 pg WHO-TEQ/g, respectively. Comparing this study with other studies performed around the world suggest that PCB emission from incinerators has a critical influence on PCB concentrations in the surrounding soil. An exponential function equation is proposed, which indicates a clear decline in ∑PCB concentrations with increasing distance from the stack. A contour map created using an ordinary kriging interpolation technique showed that a limited area (1250 m radius) from the stack was clearly influenced by PCB emission from the MSWI.  相似文献
3.
俞光明 《环境科技》2000,13(1):12-14
机立窑窑尾烟气因含尘浓度高,温度、湿度变化大等原因,治理的难度较大,很多厂家均采用沉降室来治理窑尾烟气,但效果都不够理想.而铜山县第九水泥厂采用了水雾喷淋除尘技术治理窑尾烟气,从一段时间的运行状况看,取得了明显的成效.  相似文献
4.
Somealdehydesandketonesaretoxicandcarcinogenic.Tothepolutionofaldehydesandketones,agreatatentionhasbeenpaidalovertheworld.The...  相似文献
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