TL;DR Nope.

Technical rant:

Unfortunately, EtherDelta requires the use of "allowance" mechanism in order to deposit and trade tokens. This "allowance" idea is part of the ERC20 standard and was poorly designed. The main motivation for ERC223 was to remove this unnecessary ambiguity and save people from making costly mistakes. You can read more about the ERC223 standard here: https://rados.io/posts/advantages-of-erc223-tokens

STN token is ERC223, so it's not compatible with EtherDelta. However, we are about to launch Radex very soon (we're just working out the user experience and performance issues for clients with slow internet), and that will be the first decentralized exchange that supports ERC223 standard. Not only that, you'll be able to trade your ERC20 tokens on Radex as well, at much more favorable terms, because Radex charges no fees for trading!