After properly submitting a list of links for Google to disavow, it generally takes Google anywhere from 1-8 weeks to process your request and remove the links. Unfortunately, there is no fixed amount of time in which this happens, although Google does say it will take “a number of weeks” on their Webmaster Support site.
If you have submitted your list properly, you should receive an email notification about the newly uploaded file and see a notification on the main Dashboard of your Google Webmaster Tools page under “New and Important.”
Once Google receives your list of bad links to disavow, they will remove the links and their spiders will recrawl your website to determine how the removal of the links has affected your site in search.
You will be able to tell that your links have been disavowed when your total number of links has dropped a significant amount. You can find the number of total links to your site in Google’s Webmaster Tools under “Search Traffic” and “Links to Your Site.”
Once Google has disavowed your links, we strongly recommend that you submit a reconsideration request if you have been hit by a manual penalty. In your request, be sure to explain everything that happened, what you did wrong, who created your links, what you have learned, and why it will not happen again. You need to be honest and transparent in your request.
After you have completed all of these steps, the recovery process can be somewhat lengthy. Your website will be crawled again before you can recover and Google will not inform you of when this takes place.
We will keep you updated on any further information that we learn about the disavow process. In the mean time, if you have any questions, please contact us at firstname.lastname@example.org for help or for general SEO inquiries.