NOVELTY - Ethanol fuel refining involves treating pre-treatment waste liquor, carbon dioxide produced by fermentation of ethanol, lignin, distillery yeast, alcohol waste liquor and aldehyde-ester. Energy and water are integrated to the mixture. Pre-treatment waste liquor is fermented for producing single cell protein. The pre-treatment waste liquor has water-soluble hemicellulose and hydrolyzed products such as xylose and gum sugar which are used as carbon resources to prepare single cell protein using Cortinarius.    USE - Method for refining ethanol fuel.    ADVANTAGE - The ethanol fuel refining method is eco-friendly and economical, maximizes the utilization value of the side products, and effectively utilizes the energy and the water, thus reduces energy consumption, saves water and releases zero discharge of waste during refining ethanol fuel.    DETAILED DESCRIPTION - Ethanol fuel refining involves treating pre-treatment waste liquor, carbon dioxide produced by fermentation of ethanol, lignin, distillery yeast, alcohol waste liquor and aldehyde-ester. Energy and water are integrated to the mixture. Pre-treatment waste liquor is fermented for producing single cell protein. The pre-treatment waste liquor has water-soluble hemicellulose and hydrolyzed products such as xylose and gum sugar which are used as carbon resources to prepare single cell protein using Cortinarius. Carbon dioxide is synthesized for producing degradable plastic, where 90% pure carbon dioxide is produced by fermentation of ethanol. Carbon dioxide is collected and polymerized to obtain carbon dioxide polymer, followed by producing liquor plastic film using lignin. The matured raw spirit is separated from yeast emulsion after fermentation. The fusel oil and aldehyde-ester are recycled in the process of rectification. The filtered residue of alcohol waste liquor is used to produce fodder, followed by fermenting the filtered residue to produce marsh gas for generating electricity. The side product of fermentation of the marsh gas is used to irrigate, and the marsh gas residue is used as organic fertilizer. The alcohol waste liquor is fermented for producing marsh gas which is used to generate electricity for providing power to the system. The steam produced by generation of electricity is used for steam blasting pre-treatment or distillation of ethanol and rectifying process. The hot water produced by generating electricity is used to heat the feed materials. Water integrating includes reutilizing the cooled water for washing straw or stirred material. The water collected after washing the straw is again used for washing straw after simple filtering treatment. The wastewater during the process of producing singe cell protein with pre-treatment waste liquor is reutilized as the water for boiler or stirred materials after advanced treatment with film organism. The hot water of electricity-generating with marsh gas is used for agricultural irritation. The high temperature distillate discharged after distillation is used for heating the feed materials.