In the early 1980s, as a dogsbody in a paper mill, she noted that the waste paper her superiors so casually discarded was actually worth something.
在1980年代，当她在一个纸厂当杂工的时候，她就发现上级所随意丢弃的废纸可以加以利用。
This is a waste treatment aeration pond at a paper mill.
这是一个造纸厂的水流处理曝气池。
The white sludge of paper mill and waste of chemical fibres factory could also be used as ca and Zn additives of domestic animal feed.
并利用造纸厂白泥、粘胶纤维厂废水处理产生的污泥作饲料钙、锌元素添加剂获成功。
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