Zhang Chao, Chen Yin-Guang
Water Treatment Center of SINOPEC, Research Institute of Petroleum Processing, Beijing 100083, China.
Huan Jing Ke Xue. 2013 Jul;34(7):2741-7.
As a high-quality carbon source, fermentation broth could promote the phosphorus removal efficiency in enhanced biological phosphorus removal (EBPR). The transformation of substrates in EBPR fed with fermentation broth was well simulated using the modified activated sludge model No. 2 (ASM2) based on the carbon source metabolism. When fermentation broth was used as the sole carbon source, it was found that heterotrophic bacteria acted as a promoter rather than a competitor to the phosphorus accumulating organisms (PAO). When fermentation broth was used as a supplementary carbon source of real municipal wastewater, the wastewater composition was optimized for PAO growth; and the PAO concentration, which was increased by 3.3 times compared to that in EBPR fed with solely real municipal wastewater, accounting for about 40% of the total biomass in the reactor.
作为一种优质碳源，发酵液可提高强化生物除磷（EBPR）工艺中的除磷效率。基于碳源代谢，利用改进的2号活性污泥模型（ASM2）很好地模拟了以发酵液为进水的EBPR工艺中底物的转化情况。当发酵液用作唯一碳源时，发现异养菌对聚磷菌（PAO）起到促进作用而非竞争作用。当发酵液用作实际城市污水的补充碳源时，废水成分针对PAO的生长进行了优化；与仅以实际城市污水为进水的EBPR工艺相比，PAO浓度提高了3.3倍，约占反应器中总生物量的40%。
