报纸如何在小费市场存活25年?

我们把这个问题交给约翰·威廉姆斯，他是国家非粮食作物中心的聚合物和材料经理:首先，我们不想让这些东西被填埋，首先。我的意思是，如果你看看目前的两个垃圾填埋场系统，有一种是干式消毒的垃圾填埋场，实际上并没有很多垃圾被分解，这是故意的。有一些更潮湿的垃圾填埋场，你可以在那里提取甲烷，现在甲烷被作为一种能源利用。旧垃圾填埋场，他说得很对。你可以推导出各种各样的材料。报纸是最经典的但是你要记住，报纸的木质素含量非常非常高。它在造纸过程中没有经过大量处理。木质素含量很高木质素根本不会分解。因此，例如，树和树枝等等不能很好地分解。这是完全相同的原则，但我们现在已经离开了。克里斯-我能问你吗? In the context of what we've already dumped in the ground with landfill, what are people doing about, for instance, tapping off the methane that is being produced by the breakdown of that material that's in the ground? Is that common practice and is that being used effectively?John - I think that seems increasingly common practice because, obviously, there's a route now to actually deriving an energy source and not wishing to dodge the question but I know Peter Jones actually knows an awful lot about this in terms of landfill; methane tap-off than I do.Chris - Which we ask him.John - Yeah.Chris - Peter, what do you think?Peter - Yes, the theoretical recovery rate on a landfill of around 1-2 million cubic meters should be in the order of 60% to 70 %. That's effectively a figure we arrived at by calculating what a given mass of carbon would convert to. But what you have to do is line those systems with a basal liner. You have to make sure, as you've heard from John, that you've effectively got plenty of liquid in that landfill and those bio they - it is a bio reactor that is capped. But you will always get methane. This is the bête noir of landfill. You'll always get methane formation within almost hours, certainly days, of waste being deposited on a face.