Yes this is possible with Blancco File Eraser. Blancco File Server (server edition) is recommended for this enterprise level role.
With Blancco File Eraser (for Server) you can erase also files and folders in network drives and erase free disc space over the network. Note that this requires some network capacity as the process is carried over the network.
Read these related articles for information:
How can I use Blancco File Eraser to securely erase files and folders from my corporate IT infrastructure?
What is the difference between Blancco File Eraser for PC and Blancco File Eraser for Server?