The aim of this study was to assess the odor immission derived from full-scale composting of different abundant and highly pollutant organic waste: sewage sludge with bulking agent (SL), sewage sludge pretreated through anaerobic digestion and supplemented with bulking agent (SL-AD), and market waste with olive leaves (MW-OL). The combination of dynamic olfactometry and Gaussian dispersion modeling allowed both the quantification of odor emissions from each waste and the evaluation of their global odorous impact in nearby urban areas. Wind speed, summer and winter seasons, and atmospheric conditions were considered in the dispersion model. The results revealed that high wind speed (2.6 m/s) increases the global odor immission in summer season, independently of atmospheric stability. However, the maximum odor immission concentration recommended for composting process was not exceeded in any case, which depends on each country/region. The experimental results also enable to evaluate the influence of several physico-chemical variables on odor emissions derived from composting. The removal of nitrogen and volatile solids was the main cause for odor generation. Moreover, the microbiological activity of each substrate was monitored throughout the process and different percentages of biodegradability were quantified depending on the type of substrate and pretreatment applied.

这项研究的目的是评估不同堆肥和高污染有机废物的大规模堆肥产生的气味排放：带有膨胀剂（SL）的污水污泥，通过厌氧消化预处理并补充了膨胀剂的污水污泥（SL-AD ），然后用橄榄叶（MW-OL）销售垃圾。动态嗅觉测定法和高斯分散模型相结合，既可以量化每种废物的气味排放，也可以评估其对附近城市地区的总体气味影响。在色散模型中考虑了风速，夏季和冬季以及大气条件。结果表明，高风速（2.6 m / s）会增加夏季的总体气味排放，而与大气稳定性无关。然而，在任何情况下，堆肥过程中建议的最大气味排放浓度均未超过，这取决于每个国家/地区。实验结果还能够评估几种物理化学变量对堆肥产生的气味排放的影响。除去氮和挥发性固体是产生气味的主要原因。此外，在整个过程中监控每种底物的微生物活性，并根据底物的类型和所应用的预处理对不同百分比的生物降解能力进行定量。除去氮和挥发性固体是产生气味的主要原因。此外，在整个过程中监控每种底物的微生物活性，并根据底物的类型和所应用的预处理对不同百分比的生物降解能力进行定量。除去氮和挥发性固体是产生气味的主要原因。此外，在整个过程中监控每种底物的微生物活性，并根据底物的类型和所应用的预处理对不同百分比的生物降解能力进行定量。