initially u shld be doing biochemical identification tests, can buy kit or look int bergey's manual of bacteriology for details. then for confirming you may do 16S rRNA sequencing..
Salam, you can try PIA-F or PIA-P from merck (both are Pseudomonas Isolation agar with Fluorescence and Pyocianin) i used to try it before. and with the advancement of technology, u can also using the Biolog Microlog identification systems, but the hurdler part is cost invlove.