I did something similar recently but I used a dilute solution of bleach. It didn't do a great job of bleaching the wax (only a thin layer) but when I went to make candles, they sputtered. You must render your wax all over again. For the second rendering (for my situation) I put a small amount (say 1/3 cup) of white vinegar in 8 quarts of water. I brought that to a simmer on the stove. Then I turned it down to low. I put my wax back into the water to melt and covered it. After several hours, the wax is melted--with no agitation from rolling bubbles. Turn the heat off, don't move it, and put the cover back on. Let it cool completely and slowly. This may take 20 hours or so. When it's done, the disk of wax may have pulled away from the sides of the pot. That would be a good sign. If it hasn't and all is cool, you'll need to get a rubber mallet to knock one side down into the water (do this outside) and the opposing side will pop up so you can remove the disk. If that doesn't work, you have to break it into pieces. That's the least desirable method because it will make it harder to clean up. When the disk is out of the pot, check the bottom of it for sediment and gum. You may need to get a scraper and remove the particulates and scum. If there is a lot, grab a heat gun and warm the surface of the wax while scraping. If you have a webby (swiss-cheese) type layer of wax and sediment, you boiled your wax and you'll have to start all over again.
If your pot has rivet bumps on the inside for the handles, be certain to fill the water level up to the rivets before adding wax. Don't add so much was that you have more than an inch and a half or two inch layer of melted wax...it will be nearly impossible to get out of the pot. (I know, because I did this...)
I just rendered 51lbs of wax that I bought from a beekeeper and I didn't know I'd have to render it, rather than strain it. I had to learn this from trial, error, and internet research a couple of weeks ago. The important thing is NOT to boil/simmer the wax...it won't properly remove the impurities from your wax and you'll have to render it a second time.
Hope that helps....