An apparatus for producing an alcohol from organic waste and/or biomass, the apparatus comprising: a synthesis gas generation unit which is configured to generate a synthesis gas by partial oxidation of a carbon source, wherein the carbon source is selected from the group consisting of organic waste, biomass and combinations thereof, and wherein the generated synthesis gas contains carbon monoxide, hydrogen and by-products, the by-products being selected from the group consisting of hydrocarbons having 1 to 6 carbon atoms and including a large amount of methane, carbon dioxide and combinations thereof; a reforming unit which is configured to receive the synthesis gas that has been obtained in the synthesis gas generation unit as a feed and which is further configured to reform hydrocarbons into carbon monoxide and hydrogen; a removal unit which is configured to receive the reformed synthesis gas that has been obtained in the reforming unit as a feed and which is further configured to remove impurities contained in the reformed synthesis gas by dissolving the impurities in a solution; a desulfurization unit which is configured to receive the synthesis gas free of impurities that has been obtained in the removal unit as a feed and which is further configured to separate sulfur content from the synthesis gas so as to obtain a desulfurized synthesis gas; a carbon dioxide separation unit which is configured to receive the desulfurized synthesis gas that has been obtained in the desulfurization unit as a feed and which is further configured to separate carbon dioxide off from the synthesis gas so as to obtain a carbon dioxide-free synthesis gas; a synthesis unit which is configured to receive the carbon dioxide-free synthesis gas that has been obtained in the carbon dioxide separation unit as a feed and which is further configured to subject the carbon monoxide and the hydrogen contained in the synthesis gas to a catalytic reaction in order to synthesize resultant components, wherein the resultant components include an alcohol and hydrocarbons as by-products; and a gas-liquid separation unit which is configured to receive the resultant components that have been obtained in the synthesis unit as a feed and which is further configured to separate the resultant components into a gas and a liquid, wherein the liquid includes the alcohol and wherein the gas includes unreacted carbon monoxide, hydrogen and hydrocarbons; wherein the reforming unit is further configured to receive the separated gas obtained in the gas-liquid separation unit as a feed, and to reform the hydrocarbons by utilizing heat exhausted from the synthesis gas generation unit. a synthesis gas generation unit which is configured to generate a synthesis gas by partial oxidation of a carbon source, wherein the carbon source is selected from the group consisting of organic waste, biomass and combinations thereof, and wherein the generated synthesis gas contains carbon monoxide, hydrogen and by-products, the by-products being selected from the group consisting of hydrocarbons having 1 to 6 carbon atoms and including a large amount of methane, carbon dioxide and combinations thereof; a reforming unit which is configured to receive the synthesis gas that has been obtained in the synthesis gas generation unit as a feed and which is further configured to reform hydrocarbons into carbon monoxide and hydrogen; a removal unit which is configured to receive the reformed synthesis gas that has been obtained in the reforming unit as a feed and which is further configured to remove impurities contained in the reformed synthesis gas by dissolving the impurities in a solution; a desulfurization unit which is configured to receive the synthesis gas free of impurities that has been obtained in the removal unit as a feed and which is further configured to separate sulfur content from the synthesis gas so as to obtain a desulfurized synthesis gas; a carbon dioxide separation unit which is configured to receive the desulfurized synthesis gas that has been obtained in the desulfurization unit as a feed and which is further configured to separate carbon dioxide off from the synthesis gas so as to obtain a carbon dioxide-free synthesis gas; a synthesis unit which is configured to receive the carbon dioxide-free synthesis gas that has been obtained in the carbon dioxide separation unit as a feed and which is further configured to subject the carbon monoxide and the hydrogen contained in the synthesis gas to a catalytic reaction in order to synthesize resultant components, wherein the resultant components include an alcohol and hydrocarbons as by-products; and a gas-liquid separation unit which is configured to receive the resultant components that have been obtained in the synthesis unit as a feed and which is further configured to separate the resultant components into a gas and a liquid, wherein the liquid includes the alcohol and wherein the gas includes unreacted carbon monoxide, hydrogen and hydrocarbons; wherein the reforming unit is further configured to receive the separated gas obtained in the gas-liquid separation unit as a feed, and to reform the hydrocarbons by utilizing heat exhausted from the synthesis gas generation unit.