NOVELTY - Forming a solid fuel briquette involves transporting solid fuel through a continuous-feed solid fuel treatment facility (132); treating the solid fuel using electromagnetic energy (e.g. microwave energy or radiofrequency energy) from an electromagnetic energy system (148) of the treatment facility, as the solid fuel moves through the treatment facility; and briquetting the treated solid fuel, by applying pressure to the treated solid fuel with a briquetting facility, to form a solid fuel briquette. The solid fuel is preferably treated to obtain desired moisture content in the fuel.    USE - For forming a solid fuel briquette; for forming briquettes of solid fuel e.g. wood-based product, agro-forestry product, biomass product and coal including sub-bituminous coal, lignite coal, peat, anthracite, metallurgical coal, bituminous coal and coal fines in slurry/sludge/paste obtained from metallurgic coal wash process or waste coal area/impoundment (claimed); useful for forming briquettes of solid fuel including but not limited to coke, charcoal, wood, biomass, biodegradable waste, wood-chips, wood-pellets, agro-forestry pellets, living and recently-dead biological material, biomass crops such as miscanthus, switchgrass, hemp, maize, poplar, willow, bamboo, sorghum, eucalyptus, pinus, coconut, sunflower, palm, sugar cane, algae, bagasse, straw, grass, vegetable residues and organic garbage; for forming solid fuel briquettes useful in solid fuel usage facility such as power generation facility or power plant, steel plant/mill, chemical facility, and landfill and water treatment facility.    ADVANTAGE - Electromagnetic energy (e.g. microwave/radiowave energy) is used for removing contaminants (e.g. sulfur, ash, chlorine) from solid fuel and for reducing moisture content in solid fuel, to treat the solid fuel. The solid fuel properties are enhanced by reducing the moisture content of the solid fuel below 12% using the electromagnetic energy. At 100% efficiency, 1 kW of electromagnetic energy evaporates 3.05 lbs of water per hour at ambient temperature. Microwave energy can be evenly distributed to the solid fuel, and distribution of the microwave energy to the solid fuel can be optimized. Different microwave frequencies, different microwave power and different microwave duty cycles (e.g. pulsed or continuous duty cycles), can be applied at different locations of the solid fuel. Briquetting the solid fuel after treating the solid fuel with electromagnetic energy, creates solid fuel briquettes having desired characteristics such as improved strength characteristics, burn rates and protection from environment. The resulting solid fuel briquette provides reduced harmful emissions on burning, and reduces the cost associated with the control of harmful emissions. Thus, the facilities/plants using the solid fuel briquette provide few byproducts, reduced emissions and high burn rates.    DETAILED DESCRIPTION - Forming a solid fuel briquette involves transporting solid fuel through a continuous-feed solid fuel treatment facility (132); treating the solid fuel using electromagnetic energy (e.g. microwave energy or radiofrequency energy) from an electromagnetic energy system (148) of the solid fuel treatment facility, as the solid fuel moves through the treatment facility; and briquetting the treated solid fuel, by applying pressure to the treated solid fuel with a briquetting facility, to form a solid fuel briquette. The solid fuel is preferably treated to obtain desired moisture content in the fuel. The electromagnetic energy preferably operates at a frequency of 900-930 MHz and at a power of greater than or equal to 50 kW. The briquetting facility adjusts roll-torque, screw-torque, roll force and/or screw force. The method preferably involves grinding and/or crushing the solid fuel prior to briquetting; adding a binder to the solid fuel prior to briquetting; and/or mixing additional solid fuel material with the treated solid fuel material, where the additional solid fuel material is treated using the energy from electromagnetic energy system. The method further involves adding a binder and/or a coating to the briquette.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of an overall architecture of a solid fuel treatment facility.    Conveyor belt facility (130)    Solid fuel treatment facility (132)    Microwave or radio-wave energy system (148)    Containment facility (162)    Cooling facility (164)    Testing facility (170)