湿干比对组合填料人工渗滤带除污性能的影响  

Influence of wet/dry ratio on pollutants removal ability of artificial infiltration system with combined packing

作　　者：崖婷婷[1] 刘月敏[1] 张悠慈[1] 

机构地区：[1]天津城市建设学院环境与市政工程系天津市水质科学与技术重点实验室水质科学与技术联合实验室,天津300384

出　　处：《工业用水与废水》2012年第5期11-15,27,共6页Industrial Water & Wastewater

基　　金：国家自然科学基金资助项目(50808128);国家水体污染控制与治理科技重大专项资助项目(2008ZX07314-005-012);天津市水质科学与技术重点实验室开放基金资助项目(TJKLAST-2011-17)

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。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 CODa 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.

关 键 词：湿干比 人工渗滤系统 组合填料 

分 类 号：X703.1[环境科学与工程—环境工程]