If You Need Information On Walnut Lumber Then This is The Best Untapped Resource On The Web

we dry walnut lumber. during our steaming operation we produce walnut"juice" as a by-product.we need a market
during the steaming process , condensation forms inside the kiln and cathers in a pit. we have to pump it out occasionally and must treat it as waste. it would be to our benefit to find a market for it. it is high in tannic acid .
What is in wood stains? Would this make pine,fir darker?
Would it tan and stain leather?
Just to get rid of it, is it compostable? good for acid loving plants?
Sorry not to really know.
Weathered Walnut Lumber Recovered