338323 Scrub Data & Add To PHPLD 3.4

I need someone who is familiar with PHP Link Directory (I'm using version 3.4) and who can scrub the data for my directory. I have about 26K records (currently in csv file) but many have duplicate content except for one field (example... 5 listings for X company but all data is exactly the same except email address). I want to scrub so there is only 1 unique record per business so the directory does not have a bunch of duplicates. Then data needs to be loaded into my PHP LD directory site. Thanks...