| Title |
Recycle Effects on the Characteristics of Biopellets Produced in Enhanced UASB ( EUASB ) Reactor |
| Authors |
민경석 ; 안영호 ( Kyung Sok Min ; Young Ho Ahn ) |
| Abstract |
Recycle effects on physicochemical and morphological characteristics of biopellets produced in enhanced UASB(EUASB) reactor were investigated and a simplified method for evaluation of pelletized degree and physical characteristics of biopellet was proposed. The pellets produced from the EUASB system operated with recycle ratio, R = 2 showed a better settleability and biomass holding capacity. Relationship between settleability and biomass holding capacity of pellets was little dependent with ash contents. As ultimate analysis, mass fractions of carbon, nitrogen and oxygen were shown a little different with regard to recycle ratio. And COD/VSS of pellets was affected mass fractions of carbon and nitrogen. The morphological characterization with SEM showed that the consortium of microorganisms was very dependent with hydrogen partial pressure and operational conditions. |