Abstract: A method and system for making solid fuel from brown grease includes providing brown grease, dewatering the brown grease, and combining the dewatered brown grease with a combustible material under conditions effective to make a solid fuel. A method and system for making a fertilizer material from sewage sludge includes providing sewage sludge, providing steam generated by combusting a fuel comprising brown grease, and contacting the sewage sludge with the steam under conditions effective to dewater the sewage sludge and render a fertilizer material.

Abstract: A method and system for making solid fuel from brown grease includes providing brown grease, dewatering the brown grease, and combining the dewatered brown grease with a combustible material under conditions effective to make a solid fuel. A method and system for making a fertilizer material from sewage sludge includes providing sewage sludge, providing steam generated by combusting a fuel comprising brown grease, and contacting the sewage sludge with the steam under conditions effective to dewater the sewage sludge and render a fertilizer material.

Abstract: A boat in accordance with the present invention includes boat hull and a pair of elongated members or skis or a modification to a standard boat hull to add on a dual ski attachment to make it a dual ski boat. The hull has a port side, a starboard side, an aft and a bow. One of the elongated members is adjustably mounted to and extends along the port side of the hull and the other of the elongated members is adjustably mounted to and extends along the starboard side of the hull. Each of the elongated members is adjustable between a first, retracted position wherein the member is retracted into a first recess in and is substantially flush with the hull and a second, extended position wherein each of the members extends down below and at least one foot behind the aft of the hull. The elongated members each have a forward section and a rearward section.