With the right planning, it can be done. Taking into consideration the current covid situation I would exercise caution. If they have a trash can in the bathroom take lots of good airtight gallon sized ziplock bags and regular dark colored plastic bags. When you dispose of the diaper, first wrap it as tightly as possible with the same tapes and put it into the darker plastic bag. Then put that bag into one of the ziplock bags and squeeze all the air out and seal. It should be easy to deposit into trash container. If the can is too small, take a small back pack with you, with it you can store the clean diapers and just take it with you when you go into bathroom nobody will know you have your diapers in there, and just store it until you can get outside and dispose of it in the city trash can.