You have to raise more on the flop, pretty sure the bb had the 9. Your raise gave him beautiful odds to call and hit the straight (even if he doesn't understand the odds concept go back to sklansky's theorem, if he makes a bad call you gain). A re-raise to 30c would give him poor odds (even if sb calls its less than 3:1 and assuming you recognise when he hits the straight you're not giving him implied odds) and define your hand, he can call with all sorts of draws to an 8c reraise.

You have to give up on the turn, someone's got a straight and if so you're drawing dead (to win anyway).