A method for treating bottom ash from a waste incineration plant. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. The bottom substrate has a metal reflection surface to increase the reflectivity and upgrade light-emitting efficiency and luminous intensity. In particular, the two N-channel and two P-channel devices are disposed between two leadframes and encapsulated in an electrically insulating molding compound 84.