The performances of an integrated system based on mechanical biological treatment and bioreactor landfill with leachate recirculation for managing the mixed municipal solid waste generated in a given Italian district were investigated. In the mechanical biological treatment the municipal solid waste was mechanically sorted into two main streams: a dry and a mechanically sorted organic fraction consisting of 45,000 tonnes year⁻¹. After being sorted the mechanically sorted organic fraction was aerobically pretreated before being disposed of in the 450,000 m³ bioreactor landfill. Experimental runs showed that an aerobic pretreatment period ranging from 15 to 30 days was able to maximize the methane generated by the mechanically sorted organic fraction once landfilled up to 10 Nm³ tonne⁻¹. The aerobic pretreatment leads to a significant volatile solids reduction in the first 30 days, after which the volatile solids concentration remained quite constant. Similarly the potential dynamic respirometer index was significantly reduced in the first 15 days of the aerobic pretreatment decreasing from about 5,000 to about 3,500 mgO₂kgVS⁻¹h⁻¹. The whole amount of electrical energy producible by the landfill ranged from 18.5 kWh tonne⁻¹ to 21 kWh tonne⁻¹, depending on the strategies adopted for the activation in bioreactor mode of each landfill cell by the leachate recirculation.

研究了基于机械生物处理和带有渗滤液再循环的生物反应器垃圾填埋场的综合系统的性能，该系统用于管理意大利特定地区产生的混合城市固体废物。在机械生物处理中，将城市固体废物机械分类为两大类：干燥的和机械分类的有机部分，年排放量为45,000吨^-1。分选后，将经过机械分选的有机馏分进行好氧预处理，然后将其丢弃在450,000 m ^3的生物反应器垃圾填埋场中。实验运行表明，需氧预处理阶段为15至30天，一旦填埋至10 Nm，便能够使机械分选的有机馏分产生的甲烷最大化³吨^-1。有氧预处理可在开始的30天内显着减少挥发性固体的含量，此后，挥发性固体的浓度保持相当恒定。类似地，在有氧预处理的前15天中，潜在的动态呼吸计指数显着降低，从约5,000降低到约3500 mgO ₂ kgVS ^-1 h ^-1。垃圾填埋场可产生的电能总量介于18.5 kWh吨^-1至21 kWh吨^-1之间，具体取决于通过渗滤液循环以每个反应堆模式激活生物反应器所采用的策略。