After about 3 to 5 days the charcoal should/will absorb the smell then just simply throw the charcoal away with the smell and all. This works in any room that someone has thrown up in too. Keep us posted on what you end up doing!
What scent gets rid of fish smell?
Seafood is by far the worst offender. This one-two punch is best: After cooking, leave a bowl of white vinegar on your countertop overnight (to absorb stubborn odors). In the a.m., simmer cinnamon sticks, lemon peels and ground ginger in water on the stove (at least 15 minutes) to take care of any lingering stench.