Title |
Characteristics of H2 Production from Swine wastewater |
Authors |
장영복 ( Young Bok Chang ) ; 정태영 ( Tae Young Jeong ) ; 차기철 ( Gi Cheol Cha ) ; 정형근 ( Hyung Keun Chung ) ; 김성헌 ( Seong Hun Kim ) ; 김동진 ( Dong Jin Kim ) ; 유익근 ( Ik Keun Yoo ) |
Keywords |
Swine wastewater; Anaerobic acid forming reactor; Photosynthetic reactor; H2 production; Membrane |
Abstract |
The characteristics of H₂ production from livestock wastewater were investigated through an anaerobic acid forming process using Clostridium beijerinckii and the photosynthetic process using Rhodobacter sphaeroides. The submerged separation membrane was installed in the acid forming reactor. The photosynthetic process is composed of two reactors(photosynthetic reactor 1 and photosynthetic reactor 2) which is connected continually. The removal rate of COD and the production of volatile fatty acid(VFA) in the acid forming process were approximately 50% and 1000㎎/ L, respectively. The 70% of COD in the effluent of acid forming process was removed through the photosynthetic process. The production of H₂ in the photosynthetic reactor 1 and 2 was 50 and 25mLH₂/gVFA_(COD), respectively. The values of Y in acid forming reactor, photosynthetic reactor 1 and 2 was 0.2263, 0.0601 and 0.0393, respectively. The acetic acid and butyric acid produced in acid forming process were converted to H₂ by photosynthetic bacteria. |