Cassava residue can be dried into roughage,
Can be sold to pig farmers for fermentation and feeding to pigs,
Can be sold to feed factories to make professional feeds such as cattle feed, fish feed, pig feed, etc.
It can also be used as organic fertilizer or sold to an organic fertilizer factory.
Can also be used to produce alcohol,
Or as biogas raw material. , and has many uses.
1 m3 is about 10 yuan ~ 20 yuan, depending on the market.
You can contract the starch residue of the whole factory, which may be very cheap.