基于反射特性的受原油淋洗剂污染水体光谱特性研究

Study on Polarized Light Technology in Monitoring the Degree of Pollution of Water by Surfactants of Leaching Soil Polluted by Crude Oil

为了研究不同表面活性剂在淋洗原油污染土壤后对水资源造成的污染,以3种原油污染土壤表面活性剂与淋洗后的溶液为实验样本,在2π空间内测量偏振反射特性,并从表面活性剂原液与淋洗后溶液的偏振反射比与偏振度进行分析.结果表明:3种表面活性剂原液与淋洗后溶液具有液体固有的偏振特性;由于不同表面活性剂对原油污染土壤的洗涤效果不同,淋洗后溶液的偏振反射比也不同;而且随着土壤粒径的变化,3种表面活性剂洗涤原油污染土壤后溶液的偏振反射比也发生变化;表面活性剂淋洗后溶液的偏振度越大,说明洗涤效果不明显,对水资源的污染程度较小;偏振度越小,则洗涤效果较好,对水资源的污染程度较大.

In order to research the pollution of water resources by different surfactants （which are used to leach soil polluted by crude oil）, in this research, We used three kinds of surfactant and solution after leaching as samples, and measured their polarized re- flection characteristics in the space of 2at, and then analyzed their polarized reflection and the degree of polarization. The results show that, three kinds of surfactant and the solution have their own polarized reflection characteristics. Due to the different washing effects by different surfaetants, the polarized reflections are not the same. What＇ s more, as the size of soil grain changes, the polarized reflection of leached solution changes as well. Absolutely speaking, the degree of polarization of leached solution is smaller, which means the scrubbing effect is better, and a greater the degree of pollution of water resources ; otherwise, the bigger degree of polarization shows in- conspicuous scrubbing effect, a lesser degree of pollution of water resources.