As well as avoiding disposal costs for materials it previously sent to landfill, the company now makes money by selling waste at market prices.

沃尔马公司以前都是将垃圾运往填埋场，现在却因为使用此工艺节省了这些费用，现在该公司更是将垃圾以市场价出售而大有所获。

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The technology of landfill closure was discussed, with analysis of the unit components and function of landfill closure system. The measures of engineering quality control were proposed as well.

探讨了垃圾填埋场封场工程中的封场覆盖技术，分析了封场覆盖系统各组成部分的结构组成和功能，提出了封场覆盖系统的工程质量控制措施。

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The principal environmental problem of landfill is leachate of which the water quality is complex, with high COD_ (cr) and high heavy metal ion concentration as well as high NH_3-N concentration.

生活垃圾填埋场对环境的主要影响是垃圾渗滤液，其水质复杂多变，具有高COD含量、高重金属离子和高nh_3 - N含量的特点。

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Which is our first indication that landfill might well be the economic solution.

FORBES: Despite NPR, No, Burning Trash Is Not Profitable

The Canadian city of Toronto, which has shipped much of its muck to Michigan in recent years, began sending all its solid waste there on January 1st after its own landfill had, well, filled up.

ECONOMIST: Look at Canada, and hold your nose

Recycling just a fraction of that would mean big savings in resources, as well as landfill fees.

FORBES: ZenRobotics Develops a Garbage Sorting Robot