They can be many meters deep and several kilometers wide.

尾矿坝可能有很多米深、几千米宽。

At old mining sites, waste and tailings ponds could be processed for their remaining resources.

在旧矿场，废物和尾矿池可以处理剩余资源。

The dams are some of the largest structures in the world.

尾矿坝是界上最大的结构之。

For now, Indonesia's HPAL plants dry-stack their tailings.

目前，印尼的压酸浸工厂将其尾矿进行干堆处理。

When used outdoors on tailings the process can take months and is not very efficient.

当在室外对尾矿进行处理时，该过程可能要花费数的时间，而且效率不。

Another possibility is looking for the tailings of asteroid mining.

种可能性是寻找小行星采矿的尾矿。

Dams is abysmal The more metals.

尾矿坝糟糕透顶，金属产量却更多。

I think the mining industry is on an annual basis,   producing 12 billion tons of tailings.

我认为采矿业每生产 120 亿吨尾矿。

The investors said they hope to finish a database of dam risks by late January 2020 and to create worldwide safety standards.

调查人员表示，他们希望能在20201之前做好关于尾矿坝风险的数据库，同时希望能创建个适用于全球范围的安全标准。

Firms may opt to build tailings dams instead, although Indonesia's vulnerability to earthquakes and heavy rain will make that tricky.

企业可能会选择建造尾矿坝，尽管印尼易受地震和暴雨影响， 这将使这做法变得困难。

A tailings dam is the most common waste disposal method for a mining company, whether it is mining iron ore, gold or copper.

尾矿坝是矿业公司处理废弃物最常见的方法，废弃物包括但不限于铁矿石、金子、铜。

And here just over my shoulder, these are the old workings, what they call tailings, it's waste effectively, from previous mine workings.

就在我的肩膀上，这些是旧矿井，他们称之为尾矿，它是以前矿井工作中的有效废物。

The reason firms continue to build upstream dams such as the one that brumugenio is not because they are safe but because they are cheap.

企业继续建造像布鲁马琴欧那样的上游尾矿坝，并不是因为它们安全，而是因为它们便宜。

But the process also produces a great deal of toxic slurry, known as tailings in mining jargon, and these are difficult and expensive to dispose of safely.

但这过程也会产生大量有毒泥浆，在采矿术语中称为尾矿，这些尾矿很难且成本昂地安全处理。

It's an industrial mine, so you'll see giant trucks and processing facilities and tailing ponds and all the things you see at a big open pit mine.

这是座工业矿山，所以你会看到巨大的卡车、加工设施、尾矿库以及大型露天矿场里的切东西。

Yet there are no established standards, or rules, defining what a tailings dam is, how to build one and how to care for a dam when it is no longer in use.

但目前并没有明确的标准、规定，没有关于尾矿坝的明确定义，没有规定如何建造并维护已经弃之不用的尾矿坝。

The production of ore sand is increasingly  being seen as a valuable by-product from the mining industry and one that avoids the  generation of hazardous waste known as tailings.

矿砂的生产越来越被视为采矿业的种有价值的副产品，并且可以避免产生称为尾矿的危险废物。

At old mining sites, waste and tailings ponds could be processed for their remaining resources, but the mines themselves would also need to be cleaned up and monitored for decades to prevent the poisoning soils and water supplies.

在旧矿区，可以对废料和尾矿池进行处理，以获取剩余资源，但矿区本身也需要进行清理，并进行数十的监测，以防止土壤和水源污染。

According to world mine, tailings, failures or WMTF a database 13 have taken place in the decade to 2017 as many as between 1948 and 1977 WNTF experts say tailings dams fail at 10 times.

根据界矿物尾矿坝失效数据库，截至2017的十间发生了13起事故，这与1948至1977间的情况相当。WNTF专家表示，尾矿坝的失败率提了10倍。

It was not until the 1950s, though, after bacteria were found to be responsible for the phenomenon, that the process was commercialised to recover leftover material in tailings, the liquid and solid waste from mining operations.

但直到 20 纪 50 代， 人们才发现这种现象是由细菌造成的，这工艺才被商业化， 用于回收尾矿中的剩余物质，即采矿作业产生的液体和固体废物。