What about treasure from trash?
Uses for a burned Koran:
Wood ash is commonly disposed of in landfills, but with rising disposal costs ecologically friendly alternatives are becoming more attractive.[6]
For a long time wood ash has been used in agricultural soil applications as it recycles nutrients back to the land. Wood ash has some value as a fertilizer, but does not contain nitrogen. Because of the presence of calcium carbonate it acts as a liming agent and will deacidify the soil increasing its pH.[4] Potassium hydroxide can be made from wood ash,[7] which in turn can be used to make soap. Its also used in making of century eggs.