Abstract：The stable performance of aerobic granular sludge would be affected by various factors. The type of carbon source was reported to have impact on the synthesis of poly hydroxy acid lipid (PHA), consequently affect the stability of the aerobic granular sludge. In this study, the aerobic granular sludge was cultivated with the mixed carbon source, and the effect of different carbon source on the PHA synthesized by aerobic granular sludge was investigated. The tests were conducted with 8kinds of carbon source including sodium acetate, methanol, glucose, maltose, starch, sugar, glutamic sodium and peptone. The results showed that the aerobic granular sludge had better performance for transforming the sodium acetate and sugar to PHA, with the storage capacity reached up to 102.19mgCOD/g·VSS and 70.58mg COD/g·VSS, respectively. This was significantly higher than the value using the other carbon source, which was in the range of 5~20mg/g·VSS. Therefore, it was beneficifal to maintain the stable performance of granular sludge by using sugar and sodium acetate as carbon source. However, the lowest storage of PHA was found when methanol was used.
王杰, 彭永臻, 杨雄, 王淑莹. 不同碳源种类对好氧颗粒污泥合成PHA的影响[J]. 中国环境科学, 2015, 35(8): 2360-2366.
WANG Jie, PENG Yong-Zhen, YANG Xiong, WANG Shu-Ying. Effect of various types carbon source on the synthesis of PHA of aerobic granular sludge. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(8): 2360-2366.
