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| Development of the efficient trap apparatus for soil gaseous mercury |
| LI Ji-Peng |
| Wuxi Research Institute of Petroleum Geology,Research Institute of Petroleum Exploration and Production,Sinopec,Wuxi 214151,China |
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Abstract In the past, adsorption property of the materials used in the soil gaseous mercury method was heterogeneous, and it was also easy to be polluted in the process of operation. The above problems have exerted adverse effect on the application of the method. The trap apparatus of soil gaseous mercury based on multi-layer pipes adsorption techniques combined with the enrichment apparatus has been developed in this study. The adsorption property is verified by standard gas sample analysis in the laboratory. The results show that the trap adsorption is good, the stability is high, and its test performance meets the need of various indicators. The field test in Zhaoguan geothermal system shows that the trap apparatus can absorb effectively trace gaseous mercury in soil gas, and the application effectiveness is good. The trap apparatus improves the techniques of enrichment and analysis of gaseous mercury in soil in geochemical exploration and has a good application prospect.
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Received: 25 August 2016
Published: 20 August 2017
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