Production Process of Nitrous oxide and Countermeasure in Landfill Site

最近，累积已成为日本的主要中间废物处理方法，在体积和重量上减少高废物的有效性。因此，累积安置的数量增加了在陆地填充中的增加，以及陆地填充废物的质量被改变为非有机材料。从某种意义上说，甲烷和碳二氧化物的一代数量转化为土地填充退化。但是，硝基化合物是这样的，因为氨和硝酸仍然保留，所以有可能生产出硝基氧化物，因为它在温室效应中的作用在很高的时间里有五次，即甲基对营养和去除过程的作用。因此，我们使用Landfill模型的荧光测定器和shaking测试来澄清氮氧化物的生产过程，并找到对氮氧化物在Landfill主要分配或incineration residue的生产的反措施。本研究的结果被归纳为以下内容;1）在沉积物中主要处置的土地上 ... More 此外，氮氧化物是通过生物氧化物（硝化）和化学降低氮氧化物产生的。（2）通过硝酸盐和化学还原对金属的催化剂（如铁氧和铜氧化合物）的催化剂进行净化，包括在该工厂中。（3）氮氧化物在大气生物学条件下的生产活动高于大气生物学的生产活动。（4）氮氧化物的生产与氮还原酶总量的比率仅为0.38%，化学减少的不稳定性为0.10%，生物硝化为0.33%。（5）氮氧化物的生产率较高，仅在陆地填充物中处置的沉淀物高于沉淀物和不稳定物的混合物。（6）这是由于氧化活性而导致化学还原活性的减少，如果不必要的话。（7）据估计，从陆地填充物中硝基氧化物的一代数量为5.42 - 8.92吨-N-D22-D2 O/年。8）针对氮氧化物生产的反措施将在陆地填充层中产生更多的空气动力学，并避免只对沉淀物进行处置。Less（低）

Recently, an incineration is becoming a main intermediate waste processing method due to high waste reduction efficiency in volume and weight in Japan. Therefore, the amount of incineration residue is increasing in landfill and the quality of landfilled waste changed to inorganic material. Consequently, the generation amount of methane and carbon dioxide form the landfill decreased. But the nitrogen compounds such as ammonium and nitrate still remain and it is possible to produce the nitrous oxide which has five times as high in the greenhouse effect as methane on nitrification and denitrification process. So, we carried out the experiment using the landfill modeled lysimeters and the shaking tests to clarify the production process of nitrous oxide and to find out a countermeasure against the production of nitrous oxide in landfill mainly disposed or the incineration residue. The results of this research are summarized as follows ;1) In landfill mainly disposed of the incineration resi … More due, the nitrous oxide is produced on the biological oxidation of ammonium (nitrification) and the chemical reduction of nitrate.,2) Nitrification take place by nitrifyer and chemical reduction by the catalysis of metal such as ferrous and cuprous compounds including in the incineration residue.,3) Production activity of nitrous oxide on anaerobic condition is higher than on aerobic.,4) Ratio of nitrous oxide production to the nitrogen decrease amount is 0.38% in incineration residue only and 0.10% incombustibles on chemical reduction and 0.33% on biological nitrification.,5) Production rate of nitrous oxide is higher in the landfill only disposed of the incineration residue than that the mixture of incineration residue and incombustibles.,6) This is due to the decline of chemical reduction activity by the oxidation activity which incombustibles may have.,7) It was estimated that the generation amount of nitrous oxide from landfill is 5.42〜8.92 t-NィイD22ィエD2O/year.,8) Countermeasures against nitrous oxide production are to be more aerobic in landfill layer and to avoid the disposing of incineration residue only. Less