I am not sure how it is near other accommodations around the campus, but near Wedgewood, there are 4 general waste bins, multiple wheelie bins for recycling glass and two bins that look almost exactly like the general waste ones, but have no label. From what I can assume, those two are for mixed recycling.
Before we got the glass recycling bins, we also had two mixed recycling ones, so I can only assume that the non-labeled ones are the mixed recycling ones for things like cardboard, paper, plastic etc. I checked how well the recycling is being followed, and it seems like in most if not all glass bins, there's only glass, however for mixed recycling it's a bit of a hit and miss, and it doesn't seem like most people get the memo. I'm not even sure myself if those two bins are meant for mixed recycling or have been left for general waste. If they are for mixed recycling, it should be made very clear that they are, some of my flatmates have been telling me "they have removed mixed recycling because people throw general waste in them" but we can't tell for sure, because two bins don't have a label.
I also think that it would probably be a better idea to replace the large bins with wheelie bins when it comes to mixed recycling, as it makes people less inclined to throw general waste in them, and they might not even fit in there. It might be a bit of a problem getting larger cardboard boxed inside them, but cutting up or folding over boxes before throwing them away could be an option. This could also limit more the amount of space to throw general waste, giving incentive to recycle materials that can be recycled more.