Basically removing mold behind walls is the same with how to treat mold on wood studs.
What to use to remove mold on walls.
To speed up the job try a mold cleaner specially formulated with mold killing ingredients.
Bleach can remove mold found on hard plastic metal and another non porous surface.
After scrubbing the surfaces allow the bleach solution to continue to penetrate the surfaces and dry.
Open a window and or keep a fan.
Use a soft brush and work until signs of the mold disappear.
Sunlight is a natural mold killer.
If the mold build up is on the outer surfaces of your walls you can safely and conveniently get rid of it using a few solutions like detergents vinegar baking soda or commercial cleaners find more info here.
But that s far from the truth.
If your basement has windows and doors open them a few minutes each day to allow air to circulate.
How to stop mold from growing on walls.
Then adopt the following practices to keep it from returning.
Mix a solution of one part bleach to three parts water in a spray bottle and thoroughly saturate the moldy areas of the wall.
Remove mold stains from walls.
If the surface is too porous to remove mold completely such as in ceiling tiles you may have to replace it.
To get rid of mold on walls permanently remove it using the steps above.
For more porous surfaces like drywall just use a rag so you don t damage the surface with more abrasive cleaners.