生活垃圾加载介质层填埋法对初期渗滤液污染抑制效果研究

以传统卫生填埋柱R2为对照,通过往生物反应器填埋柱R1内加载可渗透反应介质层1和2进行模拟试验,主要探讨了填埋柱R1垃圾渗滤液COD、总氮、氨氮及总磷的变化趋势,探索一种新型的加载介质层垃圾填埋处理方法。试验结果表明，填埋20周后, R1柱COD浓度基本维持在40 000～45 000 mg/L间,约为R2柱的20%～30%;第24周,R1柱总氮和氨氮分别为206.5 mg/L和167.3 mg/L,在16～24周内,R1总氮和氨氮分别约为R2的14.5%～17.5%和36.2%～43.6%;18周时,R1柱总磷达最大值1.704 mg/L,至第24周降为0.673 mg/L, 整个实验过程R1柱总磷约为R2的0.15%～0.56%。

Study on inhibitory effects toward leachate at the initial stage of loading barrier landfill method for domestic waste

Using traditional sanitary landfill R2 as a control,the simulative experiment of loading permeable reactive barrier 1(PRB1) and permeable reactive barrier 2(PRB2) on the anaerobic bioreactor landfill R1 demonstrated the change tendency of COD,TN,NH + 4-N and TP of leachate.Results indicated that the COD concentration of leachate in R1 was basically maintained between 40 000~45 000 mg/L after 20 weeks of incubation,approximately 20%~30% of R2.At the 24th week,TN and NH + 4-N concentration of leachate in R1 w...