After three months of such treatment, waste turned into fertilizer for all of the same plants, accumulating in the small drawers, located under the drum.

经过三个月的处理，废弃物就变成可以供应给植物的肥料，通过下面的小抽屉收集。

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And when the excessive fertilizer enters into the water, the environment is polluted and turned worse, and the ecosystem system would be out of tune.

而且随水土流失进入水体，从而加剧了对环境的污染，导致生态系统失调。

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Biological waste will be turned into fertilizer.

BBC: The Futurist: Masdar City

At a high temperature and pressure, gasification converts coal, or other carbon fuels, into synthesis gas that is either burned in a turbine to produce electricity, as in Summit's case, or turned into other products, like diesel oil, fertilizer and pipeline-quality natural gas.

FORBES: Old King Coal