植物边界溢油吸附特性试验研究

Experimental Study on the Adsorption Characteristics of Oil Spill by Bionic Plant Boundary

随着能源需求的增加,航道海损导致的溢油事故时有发生,或对区域经济及水环境带来巨大影响。溢油的研究包括理论、试验、数值模拟等方面。目前,针对溢油数值模拟的研究较多,但对河道岸边溢油吸附研究较少,而专门针对植物边界的溢油吸附研究更少。文章以仿宽叶草、仿米兰草、仿秧苗、仿绿萝、仿栀子叶和仿尤加利等6种仿生植物为代表,开展了仿植物边界的溢油吸附概化试验。结果表明:仿生植物各工况吸附率随时间呈线性关系;相同溢油量情况下,吸附率与吸附量之间存在一一对应关系。通过引入触油湿周、触油湿周比和吸附能力系数等定义,探讨了仿生植物的溢油吸附量表达关系,得到了相应的吸附能力系数。试验成果可为植物边界溢油研究及数模验证提供基础和验证资料。

With the increase of energy requirement,oil transportation accidents in waterways occur from time to time,which has a huge impact on regional water environment safety.At present,there are many studies on oil spill models,but little research on oil spill adsorption on river boundary,and there is a lack of research on the oil spill adsorption process and its law at plant boundaries.In this paper,six bionic plants,including bionic broad leaf grass,bionic milan grass,bionic seedling,bionic scindapsus aureus,bionic gardenia leaf and bionic eucalyptus were selected to experimentalize about the oil spill adsorption.The results showed that the adsorption rate of bionic plants changed linearly with time.Under the same oil spillage situation,there is a one-to-one correspondence between the adsorption rate and the adsorption capacity.By introducing the concepts of oil-touching wet cycle,oiltouching wet cycle ratio and adsorption capacity coefficient,the calculation of the adsorption capacity of bionic plants for oil spillage was clarified,and the adsorption capacity coefficients of each were obtained.The experimental results can provide a basis and reference for the prevention and control of oil spill diffusion at plant boundaries.