A kind of biogas regenerative electric power processing system of what is closed in this creation, is biogas produced by handle house septic tank, includes gas purification facilities, generating equipment, tail gas heat exchange equipment and tapping equipment. Gas purification facilities system receives biogas, and biogas is purified. Generating equipment system connect with gas purification facilities, receives purified biogas, produces electricl energy and last row hot gas by auxiliary gas and purified biogas. And tail gas heat exchange equipment is connect with generating equipment, receives last row hot gas, so that last row hot gas what wherein carries out heat exchange.本創作關於一種沼氣再生發電處理系統，係用以處理住宅化糞池所產生之沼氣，包含氣體純化設備、發電設備、尾氣換熱設備以及排放裝置。氣體純化設備係接收沼氣，將沼氣加以純化。發電設備係與氣體純化設備連接，接收經過純化的沼氣，藉由輔助氣體及經過純化的沼氣產生電能與尾排熱氣。而，尾氣換熱設備與發電設備連接，接收尾排熱氣，以供尾排熱氣於其中進行熱交換。
