To dispose of a tatami

Ask a tatami-maker for the disposal of unwanted tatami.
A fee may apply for a pick up.
For some area, their local government disposes it for you.

Because harmful gas such as dioxin occurs when you just burn a tatami in an incinerator that tatami-maker and the local government must hand it over to a processing supplier as industrial waste.
Straw and chemical substances (Styrofoam etc.) have to be separated for recycling.

There are about 1,000,000 quires of old tatami each year.
A redisposition device for exclusive use of a tatami mat is developed while a disposal cost becomes a social problem.