To better understand the general behavior of heavy metals in semi-aerobic incinerator residue landfills, we developed a general equation for calculating the mass balance of heavy metals (cadmium, lead, copper, zinc, mercury, and chromium) based on monitoring data from incineration plants and landfill sites. The mass balance results showed that 0.0042%, 0.001%, 0.0004%, 0.0019%, 0.022%, and 0.0065% of the disposed Cd, Pb, Cu, Zn, Hg, and Cr, respectively, were washed out by rainfall from 1975 to 2015. Heavy metals (Cd, Cr, and Hg) with a lower total mass in the landfill had a relatively high total leaching rate. This may be because of the high pH of the landfill, which affected the leaching of Pb, Zn, and Cu. According to our analysis of the changes in annual leaching rates at this landfill site, there was an obvious change in those of Cu, Zn, and Pb after 1989, when the pH of the leachate increased suddenly. The overall annual leaching rate became more stable, at around 0.00002%, following closure of the landfill site, and it is believed that the dissolvable fraction and heavy metal concentration in the leachate are expected to reach a limit under the current conditions.

为了更好地了解半好氧焚化炉残渣填埋场中重金属的一般行为，我们基于焚烧的监测数据，开发了一个用于计算重金属（镉，铅，铜，锌，汞和铬）质量平衡的通用方程式植物和垃圾填埋场。质量平衡结果表明，从1975年到2009年，降雨分别清除了所处置的Cd，Pb，Cu，Zn，Hg和Cr的0.0042％，0.001％，0.0004％，0.0019％，0.022％和0.0065％。 2015年。垃圾填埋场中总质量较低的重金属（镉，铬和汞）的总浸出率相对较高。这可能是由于垃圾填埋场的高pH值影响了Pb，Zn和Cu的浸出。根据我们对该垃圾填埋场年浸出率变化的分析，铜，锌，1989年以后，渗滤液的pH突然升高。填埋场关闭后，总的年度浸出率变得更稳定，约为0.00002％，并且据信在当前条件下，沥滤液中的可溶部分和重金属浓度有望达到极限。