此外，又提出副产物的利用和三废治理途径。
In addition, the USES of the by-products and the treatment ways of the wastes are suggested.
该工艺具有反应温度低、反应完全、转化率高、溶剂可回收利用、三废少的特点。
The process had the advantages of low reaction temperature, high conversion rate, high yield, recycle of solvent, and low waste disposal.
说明这种类型的锅炉对以煤为原料制气的氮肥厂是一个综合利用的好项目，既节能又利于三废冶理。
The use of this type boiler is a good idea for energy saving and environment protection to the nitrogen plant using coal as a feed.
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