external transport
4.The separation of Sc(Ⅲ),Fe(Ⅲ) and Lu(Ⅲ) by 1-hexyl-4-ethyloctyl isopropylphosphonic acid-N205-heptane emulsion liquid membrane (ELM) was studied. Effects of different factors such as pH of external and internal aqueous phase,concentrations of PT-2 and N205 on the transport of Sc(Ⅲ) by the ELM were investigated.
5.Through the quantitative analysis of the usage cost, infrastructure cost, trip time cost and external cost of various traffic modes, including walk, bicycle, motorbike, bus, car, taxi, light- rail, subway and so on, the paper put forward a computing method on defining urban trip costs, and provides a basis for improving urban transport structure.
7.Data in this chapter are prepared and edited by Division of Population and Employment Statistics, Division of National Economic Accounting, Division of Industry and Transport Statistics, Division of Statistics of Investment in Fixed Assets, Division of Trade and External Economic Relations Statistics, Division of Social and Technology Statistics, Division of Comprehensive Statistics of Municipal Bureau of Statistics and NBS Survey Office in Chongqing, on basis of data from related divisions of Municipal Bureau of Statistics, statistical bureaus of districts (counties) and from related municipal departments.
8.The experimental results in detail is as follows:(1) Emulsion liquid membrane separationFirstly, the transport rate of Cr(VI) through ELM used TBP as the mobile carrier and Span80 as the surfactant, was studied by the Emulsion liquid membrane system. The effects of various parameters, such as the pH values in external water phase, the concentration of NaOH in inner water phase, carrier concentration, surfactant concentration, the Roi values and Rew, values were investigated;
