So, I generally wash wet diapers by hand (along with most of our laundry), and once a week DH takes the poopy diapers to the laundromat because they get cleaner. But the last few weeks, things have happened that prevented him from getting there. Finally (3mo old+pregnancy brain!) I realized how long they've been sitting around and, sure enough, they're crusty and funky with old poo. 
How do I wash these?? Do they need to be disinfected? What's the best way?
Thanks!
Edited to add: these are cotton flats and prefolds

How do I wash these?? Do they need to be disinfected? What's the best way?
Thanks!
Edited to add: these are cotton flats and prefolds











