NOVELTY - A fermentation treatment process for fermentation treatment of waste matter (including city waste (220) contained in garbage bags) using a rotary kiln (102) or a rotary dryer, comprises carrying out the fermentation process by introducing the waste matter directly into the rotary kiln or rotary dryer without tearing the garbage bags. The rotary kiln or rotary dryer does not include a brick lining.    USE - The fermentation treatment process treats waste matter (including city waste contained in garbage bags) producing a product that is useful as part of raw material/fuel for cement production.    ADVANTAGE - The fermentation treatment process carries out the fermentation of the waste matter without tearing the garbage bags.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a cement production process comprising sequentially introducing the fermentation treatment product (228) and gas produced by a fermentation treatment process as above directly into any of the inlet ports of preheater and firing equipments for cement production;    (2) a fuel for electric power generation obtained by a fermentation treatment process as above;    (3) a fermentation treatment apparatus (202) for the fermentation treatment of waste matter, comprising a rotary cement kiln where its brick lining is removed, or a rotary dryer with part of the outer surface of the rotary kiln or rotary dryer is covered with a heat insulating material;    (4) a cement plant comprising the fermentation treatment apparatus; and    (5) an equipment for the manufacture of a raw material/fuel for cement production, comprising a fermentation treatment apparatus as above and a storage tank for the fermentation treatment product.    DESCRIPTION OF DRAWING(S) - The drawing schematically illustrates a cement plant for carrying out the fermentation treatment process and cement production process.    Rotary kiln (102)    Fermentation treatment apparatus (202)    Fermentation treatment tanks (204, 206)    City waste (220)    Fermentation treatment product (228)