UV紫外线杀菌器在水和废水处理中的应用英文原版研究论文_C07.pdf

Glossary* absorption coefficient. See Beer–Lambert law. Beer–Lambert law. Quantifies the absorption of a monochromatic wavelength by an homogeneous substance relating the incident radiant intensity (I ) o −ACd to the transmitted intensity (I) by I = Io × 10 , where A is the absorption coefficient; C, the concentration of the absorbing species, and d, the optical path length (usually in centimeters). The units for A are either in liters per mole-centimeter, or, for undefined compounds or for mixtures, in liters per centimeter (of liquid). Alternatively, the law can be expressed basically on the Naperian log(ln) −ECd basis: I = Io e , in which E is the extinction coefficient, also in liters per mole-centimeter. Other symbols and units are found in the literature; however, the important point is to distinguish data expressed in publica- tions either in the Log 10 base or in the Ln e base logarithms. black body. A thermodynamic equilibrium concept that correlates temperature- heat transfer into the capacity of emission of light at given wavelengths. The maximum of emission is displaced to lower wavelengths when the temperature is increased. Bunsen–Roscoe law. The ratio of reaction proportional to the absorbed dose. (The law generally applies to disinfection of drinking water; in photo- chemical processes, side effects must be considered.) constants. See end of this glossary. dose. Corresponds to the radiant power or radiant flux received per second by a unit surface. In this text, the dose is exp