【摘要】 湿干比作为人工渗滤系统的重要控制参数,影响系统的处理效果。采用模拟人工渗滤系统装置,研究不同湿干比对人工渗滤系统除污能力的影响,试验过程中测定了CODCr、NH3-N、NO2--N、NO3--N、TN、TP等指标的变化。结果表明,湿干比为3∶4时,人工渗滤系统的除污能力较湿干比为1∶6时略好,且能更快形成脱氮环境。对于人工渗滤系统而言,不是湿干比越小就越利于污染物去除,只有选择合适的湿干比,才既能保证系统内充分复氧,又能维持系统内的微生物群落对营养的需求。更多还原

【Abstract】 As an important control parameter,wet/dry ratio affects the treatment effect of the artificial infiltration system.Using a simulation device of the artificial infiltration system to treat wastewater,the influence of wet/dry ratio on pollutants removal was investigated,and the changes of indexes such as CODCr,NH3-N,NO2——N,NO3——N,TN,TP and so on during the experiment were monitored.The results showed that,the pollutants removal ability of the said system with a wet/dry ratio of 3 ∶ 4 was a little better than that with the ratio of 1 ∶ 6,and the nitrogen removal efficiency of it was also higher.Therefore,for the pollutants removal by artificial infiltration system,wet/dry ratio is not the smaller the better,only a proper wet/dry ratio can ensure both the full reoxygenation and the nutrition needs of the microorganism communities in the system.更多还原