中试研究了好氧膨胀床(OEB)反应器处理甲醇制烯烃(MTO)废水的稳定运行过程,考察了COD去除效果、填料层膨胀情况、反应器压降、反应器排泥及其它运行情况。试验过程运行稳定,膨胀填料层负荷在0.5~1.4 kg COD/m^3/d,COD去除率一直稳定在80...中试研究了好氧膨胀床(OEB)反应器处理甲醇制烯烃(MTO)废水的稳定运行过程,考察了COD去除效果、填料层膨胀情况、反应器压降、反应器排泥及其它运行情况。试验过程运行稳定,膨胀填料层负荷在0.5~1.4 kg COD/m^3/d,COD去除率一直稳定在80%以上,DO比耗基本在1~3,而且废水浊度也可以得到明显去除。确认了自主开发的OEB反应器是稳定和有效的,值得进一步优化并推广使用。展开更多
Based on an analysis and comparison of the current prevailing e book format,this article suggests that we should use OEB format as the standard in constructing the resources in digital libraries.
The leaves of Eucalyptus are abundant in natural resources as a novel potential antioxidant and have broad market prospect.Four of characteristic hydrolysable tannins from Eucalyptus leaves have been demonstrated grea...The leaves of Eucalyptus are abundant in natural resources as a novel potential antioxidant and have broad market prospect.Four of characteristic hydrolysable tannins from Eucalyptus leaves have been demonstrated great application potential as natural antioxidants in our previous research.In this study,the bioactive activities of another hydrolysable tannin isolated and identified as oenothein B(OEB)were evaluated.Content of bioactive compound(hydrolysable tannin)from different Eucalyptus species and regions in southern China were investigated.The results showed that OEB not only exerted anti-proliferative activity against HepG2 cell,but also showed higher cellular antioxidant activity than some common antioxidants.Generally,content of characteristic hydrolysable tannins decreased in the order of OEB>tellimagrandin I(T1)>pedunculagin>gemin D>pentagalloyl glucose(PGG).E.grandis×E.urophylla GL9 and E.urophylla×E.grandis could be recommended as new natural sources to exploit hydrolysable tannins because of high content,widely plantation and strong adaptability.This study supplied first insight on introduction of high cellular antioxidant activity of OEB and selecting the species and region to exploit natural antioxidants.It will promote the increasing of economic value of Eucalyptus.展开更多
文摘中试研究了好氧膨胀床(OEB)反应器处理甲醇制烯烃(MTO)废水的稳定运行过程,考察了COD去除效果、填料层膨胀情况、反应器压降、反应器排泥及其它运行情况。试验过程运行稳定,膨胀填料层负荷在0.5~1.4 kg COD/m^3/d,COD去除率一直稳定在80%以上,DO比耗基本在1~3,而且废水浊度也可以得到明显去除。确认了自主开发的OEB反应器是稳定和有效的,值得进一步优化并推广使用。
文摘Based on an analysis and comparison of the current prevailing e book format,this article suggests that we should use OEB format as the standard in constructing the resources in digital libraries.
基金supported by the General project of the Natural Science Foundation of Guangdong Province,China(2022A1515010907)the National Key R&D Program(2016YFD0600806)National Natural Science Foundation of China(31700501).
文摘The leaves of Eucalyptus are abundant in natural resources as a novel potential antioxidant and have broad market prospect.Four of characteristic hydrolysable tannins from Eucalyptus leaves have been demonstrated great application potential as natural antioxidants in our previous research.In this study,the bioactive activities of another hydrolysable tannin isolated and identified as oenothein B(OEB)were evaluated.Content of bioactive compound(hydrolysable tannin)from different Eucalyptus species and regions in southern China were investigated.The results showed that OEB not only exerted anti-proliferative activity against HepG2 cell,but also showed higher cellular antioxidant activity than some common antioxidants.Generally,content of characteristic hydrolysable tannins decreased in the order of OEB>tellimagrandin I(T1)>pedunculagin>gemin D>pentagalloyl glucose(PGG).E.grandis×E.urophylla GL9 and E.urophylla×E.grandis could be recommended as new natural sources to exploit hydrolysable tannins because of high content,widely plantation and strong adaptability.This study supplied first insight on introduction of high cellular antioxidant activity of OEB and selecting the species and region to exploit natural antioxidants.It will promote the increasing of economic value of Eucalyptus.
