The technology of managing the pollution of black-liquor of straw pulping in paper-making is a hot point in China's water pollution controlling research.

草浆造纸黑液的污染治理技术是国内水污染控制研究的热点，但由于草浆黑液的特点不同于木浆造纸废水，因而其治理成本较大。

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The technology of managing the pollution of black-liquor of straw pulping in paper-making is a hot point in native water pollution controlling research.

草浆造纸黑液的污染治理技术是国内水污染控制研究的热点 ，但由于草浆黑液的特点不同于木浆造纸废水 ，因而其治理成本较大。

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Another recent innovation could also help: watershed management, which means managing water supplies across political or management borders can better control pollution and track water withdrawals.

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