Huanglian places of origin distribution and change from herbal-works / 中国中药杂志

The herbal-works recorded that the origin production places of Huanglian had gone through dynamic condition of distribution and change. During Pre-Qin and Qin-Han Dynasty, the origin production places of Huanglian were small and limited. During Weijin-Nanbei Dynasty, the origin production places of Huanglian grew in number gradually. During Sui-Tang and Song-Yuan Dynasty, the origin production places of Huanglian were enlarged quickly. During Ming and Qing Dynasty, the origin production places of Huanglian were expended small-size. The origin production places of Huanglian were enlarged because its functions and demands added and planting-technology skills developed. The records of the herbal-works were not complete, we should pay attention to the other works, so as to ascertain the realorigin production places of Huanglian exactly and scientifically.

Performances of anammox-EGSB bioreactors started up with three different seeding sludges / 生物工程学报

In order to select better seeding sludge and promote start-up of Anammox reactors, we studied the start-up performances of three Anammox-EGSB bioreactors inoculated with anaerobic methanogenic sludge (AMS) (R1), Fresh Anammox sludge (FAS) (R2) and stored Anammox sludge (SAS) (R3), respectively. Results showed that these three seeding sludges could start up Anammox-EGSB bioreactors successfully, but the start-up progresses showed different characteristics. The start-up course of R1 could be divided into three phases including autolysis phase (15 d), lag phase (54 d) and activity elevation phase (40 d). However, the start-up courses of R2 and R3 only included lag phase (2 d and 12 d, respectively) and activity elevation phase (15 d and 57 d, respectively). Besides, the performance of R3 was better than that of R1, but worse than that of R2. Furthermore, bathing the Anammox sludge in the effluent of bioreactors was a convenient and effective way to keep the activity of the Anammox sludge. The ammonia removal efficiency, percentage of denitrification and the stoichiometric ratios of NH4(+)-Nr/NO2(-)-Nr and NO3(-)-Np/NH4(+)-Nr could serve as indicators to monitor the start-up of Anammox bioreactors.