化工进展2011，Vol.30Issue(7)：1618-1622,5.
利用淀粉化废水驯化活性污泥合成聚-β-羟基脂肪酸酯及其表征
Synthesis and characterization of PHA produced by acclimated activated sludge from acidified starchy wastewater
李金娟 1赵林 1谭欣 1黄宇 1柳听义1
作者信息
- 1. 天津大学环境科学与工程学院，天津300072
- 折叠
摘要
Abstract
The synthesis and characterization of poly-β-hydroxyalkanoates (PHA) by activated sludge from acidified starchy wastewater were studied. The results showed that the acidification products of starchy were butyric, acetic, propionic, valeric acids and ethanol. These organic acids were used to feed activated sludge to produce PHA and 34.7% of PHA from sludge was obtained. The PHA in the sludge was extracted by CHCl3 and its structure and thermal properties were determined by nuclear magnetic resonance ( NMR), themogravimetric ( TG) and differential scanning calorimeter (DSC). The results of NMR showed that PHA was composed of HB and HV and PHA had HV content of 8.9% (mole ratio) . The results of thermal analysis showed that melting point was 150 ℃ and thermal degradation temperature was 270 ℃.关键词
淀粉废水；厌氧酸化；聚-β-羟基脂肪酸酯；活性污泥；生物合成Key words
starchy wastewater/ anaerobic acidification/ poly-β-hydroxyalkanoate/ activated sludge/ biosynthesis分类
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李金娟,赵林,谭欣,黄宇,柳听义..利用淀粉化废水驯化活性污泥合成聚-β-羟基脂肪酸酯及其表征[J].化工进展,2011,30(7):1618-1622,5.
