Many industries use rotary dryers to minimize moisture content in material during the manufacturing process. Typically, these systems use heated gas to dry material in a large rotary chamber.

Biomass is organic material that comes from plants and animals and can be used for energy production. Although many substances such as agricultural crops and waste materials can be burned for fuel, the most common biomass used for fuel is wood and wood processing wastes.

Biosolids are nutrient-rich organic materials produced when sewage sludge from wastewater treatment facilities are properly treated and processed. Biosolids are nutrient-rich organic materials produced when sludge from either industrial or municipal wastewater treatment facilities are properly treated and processed.

Hemp drying is typically used to protect a harvested crop from spoiling prior to CBD extraction. While some farmers will hang dry portions of their crops, the space and labor requirements to accomplish this make this impractical for substantial amounts.