Research on Purification Technology for Polluted Gases at the Preservation Site of"Nanhai Ⅰ"Song Dynasty Shipwrecks
Since the full excavation of the"Nanhai I"Song Dynasty shipwrecks in 2013,the indoor air quality at the preservation site has gradually deteriorated,filled with an unpleasant odor.By testing and analysis,it was found that indoor air contains pollutants such as nitrogen compounds and sulfides.Accelerated corrosion experiments on wood specimens of the shipwrecks also showed the release of sulfur containing pollutants.The pollutants in the air and the odor generated in the preservation site area of the Nanhai I Song Dynasty Shipwrecks have had a serious impact on the safe preservation of the shipwrecks and working environment of the area.In this study,a carrier loaded chemical conversion agent with a porous structure is used to prepare a chemical filter medium for dry adsorption.While the filter medium adsorbing pollutants such as sulfur in the air,pollutants can be decomposed and converted into harmless salts,thereby achieving the goal of purifying air pollutants.Through laboratory and on-site verification experiments,it has been found that the conversion rate of chemical filter medium for dry adsorption purification is high,and the purification process is sustainable,which can provide practical technical support for the design of on-site environmental treatment plans.
Preservation environment of cultural relicschemical dry adsorptionpollutant purificationpurification of foul smelling and polluting gases
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