【摘要】 以模拟生活污水为对象,研究SRT分别为10、15、20、25 d的情况下,SBR系统对COD、NH4+-N、HA和Cu2+的去除效果以及TTC-ETS的变化。试验结果表明:SRT为20 d时,SBR系统处理含有10 mg/L HA和2 mg/L Cu2+的模拟生活污水效果较好,此时COD、NH4+-N、HA、Cu2+去除率分别为92.65%、99.42%、96.98%、95.55%。SRT的变化并未明显改变TTC-ETS的趋势,呈现出先下降再上升最后下降的变化。与空白组相比,试验组的TTC-ETS受到HA和Cu2+的抑制。在单周期内0、2、4、6、8、10 h TTC-ETS的抑制率分别为26.13%、76.39%、79.50%、79.61%、49.59%、39.31%。更多还原

【Abstract】 Taking simulated domestic sewage as the research target,the influences of SRT system on COD,NH4+-N,HA and Cu2+removing effects and the change of TTC-ETS have been studied,when SRT is under the conditions of10,15,20,25 d,respectively. The results show that when SRT is 20 d,SBR system has a good removing effect on the simulated domestic sewage containing 10 mg/L of HA and 2 mg/L of Cu2+,meanwhile,the removing rates of COD,NH4+-N,HA and Cu2 +are 92.65%,99.42%,96.98%,95.55%,respectively. The change of SRT does not significantly change the trend of TTC-ETS,showing the change as declining firstly,rising next,and declining finally. Compared with the blank group,the TTC-ETS in the experiment group has been inhibited by HA and Cu2+. The inhibition rates of TTC-ETS in single cycle 0,2,4,6,8,10 h are 26.13%,76.39%,79.50%,79.61%,49.59%,39.31%,respectively.更多还原