台灣每年產生大量的稻殼廢棄物，本硏究將利用稻殼作爲基質，進行一連串的水解、醱酵 產氫及甲烷反應等三段連續流反應槽試驗，以評估稻殼之厭氧產氫、產甲烷的可行性。
硏究結果顯示：在連續流試驗中，水解（sequencing batch reactor, SBR)串聯醱酵產氫 (continuously stirred tank reactor, CSTR)之二段式反應槽之產氫率爲 3.31 mmole H2/g-CODin遠 高於ASBR共培養反應槽之產氫率，爲1.81 mmole H2/g-CODm。在二段式分離培養反應槽中，
前段SBR水解操控於pH 7.0左右，總循序時間爲6 hr々後段醱酵產氫CSTR反應槽，操控於 pH 5.0-5.5，HRT爲18 hr，有最佳的產氫效率，達19.8 mmole-氏/L • day，每克CODm的氫氣 產量達 1.47 mmole H2/g-CODin。
以第二段醱酵產氫反應槽之後的出流水作爲甲烷化流體化床反應槽的基質，進行烷化反 應，則單位體積反應槽每天產量可達4620 cal / L • day及535 cal / g-CODm以上，比光合產氫柱 塞流式反應槽（861 cal /L-day及131cal /g-CODm)與光合產氫完全混合式反應槽（253 cal /L • day 及 51.8 cal / g-CODm)爲佳。
以甲烷化流體化床反應槽爲第三段反應槽，整體而言，甲烷化反應槽以pH控制在7.0，溫 度在35°C，迴流流量爲1,000 ml/mm有最佳甲烷產率，就每克進流COD甲烷產率而言，以HRT 爲24 hr、進流COD濃度爲10,000 mg/L時，爲最佳之每克進流COD甲烷產率，爲0.911 mmole-CH4 / g-CODm々就單位體積甲烷產率而言，以HRT爲6 hr、進流COD濃度爲30,000 mg/L時， 爲最佳之單位體積甲烷產率，爲65.3 mmole- CH4 / L • day。

A huge rice husk waste is produced in Taiwan every year. This study used rice husk as substrate to explore the feasibility of three-stage continuous input reactors for fermentative hydrogenesis and methanogenesis. The results show as follows: In continuous input tests, the separated two-stage reactors, a hydrolytic SBR connected by a hydrogenic CSTR produced, 3.31 mmole Hz/g-CODh and were higher than co-cultivated ASBR (1.81 mmole H^/g-CODin). The separated two-stage reactors, the first reactor, hydrolytic SBR was set at pH 7.0, with total progressive time of 6 hrs, and the second reactor, fermentative hydrolytic CSTR was set at pH 5.0-5.5, with HRT of 18 hrs, got the best hydrogen productivity, up to 19.8 mmole-Hz/L. day and 1.47 mmole Hz/g-CODin.
While the effluent of second stage reactor for fermentation hydrogen production was used as the substrate for methane production by fluidized bed reactor, the daily energy produced of per unit volume of the reactor and the per gram of influent COD by methanogenic fluidized bed reactor (4620 cal / L. day and 535 cal / g-CODin) were higher than those of the plug-flow (861 cal / L . day and 131 cal / g-CODin), and the completely mixing (253 cal / L. day and 51.8 cal / g-CODin) photosynthetic hydrogen producing reactors.
The third stage, the methanogenic fluidized bed reactor was set at pH7.0, with temperature of 35 0C and recycling flow rate of 1,000 ml / min. While the HRT was 24 hours and influent COD concentration was 10,000 mg / L, the best methane production of per gram of influent COD was 0.911 mmole-CH4 / g-CODin. While the HRT was 6 hrs and influent COD concentration was 30,000 mg / L, the best methane production of per unit volume reactor was 65.3 mmole-CH4 / L. day.