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| 1 | Methane oxidation and attenuation of sulphur compounds in landfill top cover systems: Lab-scale tests显示文摘In this study,a top cover system is investigated as a control for emissions during the aftercare of new landfills and for old landfills where biogas energy production might not be profitable.Different materials were studied as landfill cover system in lab-scale columns:mechanical–biological pretreated municipal solid waste(MBP);mechanical–biological pretreated biowaste(PB);fine(PBS_f)and coarse(PBS_c)mechanical–biological pretreated mixtures of biowaste and sewage sludge,and natural soil(NS).The effectiveness of these materials in removing methane and sulphur compounds from a gas stream was tested,even coupled with activated carbon membranes.Concentrations of CO_2,CH_4,O_2,N_2,H_2S and mercaptans were analysed at different depths along the columns.Methane degradation was assessed using mass balance and the results were expressed in terms of methane oxidation rate(MOR).The highest maximum and mean MOR were observed for MBP(17.2 g CH_4/m^2/hr and 10.3 g CH_4/m^2/hr,respectively).Similar values were obtained with PB and PBS_c.The lowest values of MOR were obtained for NS(6.7 g CH_4/m^2/hr)and PBS_f(3.6 g CH_4/m^2/hr),which may be due to their low organic content and void index,respectively.Activated membranes with high load capacity did not seem to have an influence on the methane oxidation process:MBP coupled with 220 g/m^2and 360 g/m^2membranes gave maximum MOR of 16.5 g CH_4/m^2/hr and 17.4 g CH_4/m^2/hr,respectively.Activated carbon membranes proved to be very effective on H_2S adsorption.Furthermore,carbonyl sulphide,ethyl mercaptan and isopropyl mercaptan seemed to be easily absorbed by the filling materials. | Roberto Raga Alberto Pivato Maria Cristina Lavagnolo Laura Megido Raffaello Cossu | 2018 | Journal of Environmental Sciences2018，30，3： | 1 |
| 2 | The PAF model:an integrated approach for landfill sustainability显示文摘 | Raffaello Cossu Roberto Raga Davide Rossetti | 2003 | Waste management2003，23，： | 1 |
| 3 | The PAF model:an integrated approach for landfill sustainability显示文摘 | Raffaello Cossu Roberto Raga | 2003 | Waste Management2003，23，： | 1 |
| 4 | The PAF model: an integrated approach for landfill sustainability显示文摘 | Raffaello Cossu Roberto Raga Davide Rossetti | 2002 | Waste Management2002，，1： | 1 |
| 5 | Effectiveness of aerobic pretreatment of municipal solid waste for accelerating biogas generation during simulated landfilling显示文摘这研究在减少上评估市政的稳固的废物(MSW ) 的氧气的预告的处理的有效性落后阶段和加速的 biogas 产生。氧气的预告的处理度(APD ) 在不稳定的固体根据减小被决定(对) 在一个湿重量基础上。在这研究,断断续续的通风(IA ) 作为一个主要通风模式被用于三个反应堆;因为一个单个反应堆在连续通风模式下面被操作。然而,实验的目的到过废物的还原剂对内容,不管在通风模式之间的比较。新鲜 MSW 与不同通风率氧气地是第一 pretreated (为 30-50 天的时期的 10, 40, 60 和 85 L/min/m 3) ,分别地在浪费 A1, A2, A3 和 A4 的 w/w 基础上导致等价于 20% , 27% , 38% 和 53% 的对损失。累积 biogas 生产,基于修改 Gompertz 模型计算是 384, 195, 353, 215,和 114 L/kg 对为浪费 A0, A1, A2, A3 和 A4 分别地。未经治疗的废物(A0 ) 出现了一长落后阶段;而 pretreated MSW 的 lag 阶段被超过 90% 减少。氧气地, pretreated 浪费为未经治疗的废物与 418 天相比在 41 天以内到达了稳定的 methanogenic 阶段。浪费团与未经治疗的 MSW 相比在大约 8% ~ 27% 减少了,甚至更多的 MSW 能在一样的垃圾堆被放的陈述语气。学习在减少上在 landfilling 以前证实了 MSW 的氧气的预告的处理的有效性落后阶段和加速的 biogas 产生。 | Munawar Ali Junli Zhang Roberto Raga Maria Cristina Lavagnolo Alberto Pivato Xu Wang Yuanyuan Zhang Raffaello Cossu Dongbei Yue | 2018 | Frontiers of Environmental Science & Engineering2018，12，3： | 0 |
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