Development of Numerical Solid Waste Lanfill Engineering

至于涉及填埋场内外各种现象的参数极其丰富，相互关系也是复杂的。此外，垃圾填埋场还具有特殊的性质，并对其产生影响。垃圾填埋场是一个复杂的系统，需要借助于计算机的处理能力和表达能力对填埋场进行适当的控制。然后，对现有的填埋场研究成果进行了广泛的整理，编制了用PC机计算垃圾在填埋场中稳定化过程的程序，得到了填埋场中各种现象的方程组和必要的模型参数的确定。1)编制了单元格的计算程序，考察了各参数对计算结果的影响；2)成功地编制了一维堆积覆盖土和/或废弃层的计算程序，阐明了有机物的生物降解过程随渗滤液水质和填埋气的时间变化。3)氧气入渗、微生物增殖、利用所编制的程序，确定了中和材料的用量，并讨论了填埋方式对填埋效果的影响。4)最后给出了三维计算方法。

As for the parameters that relates to various phenomena in the inside and outside of the landfill, it is extremely abundant, and the interrelation is also complex. In addition, there are peculiar properties to the landfill site, and it influences. It is necessary to borrow the processing performance and the expression ability of the computer to appropriately control thelandfill that is such a complex system.Then, a current landfill researches are widely consolidated, and the program that calculate the stabilization process of waste in the landfill with the personal computer is completed.The set of equations with various phenomena in the landfill and the decision of necessary model parameters is obtained. The calculation program was able to be made though there were a lot of the parameters that had to be set, and the relations of each other were complex.1) The calculation program on one cell was made, and the influence of the parameter on the calculation result was examined.2) It succeeded in making the one dimensional calculation program that piled up the covering soil and/or the waste layer in one dimension and elucidating the biodegradation process of organic matter with the time variation of the quality of the leachate and the landfill gas.3) The influence of the parameters related to the infiltration of oxygen gas, the microorganism proliferation, and the amount of the neutralizing material was clarified, and the influence of the landfilling method was discussed by using the obtained program.4) Finally, a three-dimensional calculation method was shown.