Must surface minerals be removed from straw biochar?

The surface minerals of straw biochar must be removed.

1, used as fertilizer or absorbent.

2. "Straw charcoal" takes the straws of corn, cotton, soybean, wheat, rice, peanut shells, sawdust, dead branches, weeds and other crops as raw materials, and adopts the principle that coal is formed underground. Raw materials do not need to be crushed, and the dry and wet conditions are not strict. Straw biomass is naturally decomposed and can be molded after 6-8 hours under the condition of air isolation. In the carbonization process, no chemical raw materials are added, no electricity is used, no other equipment except the carbonization tank is used, and the carbonization tank does not need to be sealed or covered, so the whole carbonization process has no cost and will not cause pollution, and an adhesive is added for molding. At present, it can produce five kinds of products, such as honeycomb briquette, briquette, charcoal stick and barbecue charcoal. It is a tungsten-gold product that replaces traditional raw coal; A new clean and environment-friendly energy source with bright prospects, which the country attaches great importance to.