20090293568 | SOLID FUEL FROM BROWN GREASE AND METHODS AND SYSTEMS FOR BROWN GREASE AND SEWAGE SLUDGE RECYCLING - 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. | 12-03-2009 |