氯碱工业产生的三废及部分氯产品，对人类赖以生存的环境带来一定冲击和破坏作用。
The"three wastes"and some chlorides from chlor-alkali industry have destructive impact on environment where we are living.
中国城市土壤重金属污染的主要来源是工业“三废”排放，金属采矿和冶炼，家庭燃煤，生活垃圾，汽车尾气排放。
The heavy metal contamination of urban soil in China is caused by industrial pollutant discharge, metal mining and smelting, family coal combustion, rubbish exudation and vehicle emission.
本文较详细介绍常压合成吗琳新工艺的装置、工艺条件、催化剂、三废治理及工业化进展情况与技术经济分析。
New process of morpholine syntheses at normal pressure was recommended about its equipments, process conditions, catalyst, water treatment, industrial development and technic-economic analysis.
提出了芒硝钡卤法生产工业硫酸钡中三废的治理方法。
结论该工艺收率较高，成本较低，三废少，适合于工业化生产。
Conclusion This technique has higher yield, lower cost and fewer three wastes. So it is suitable for industrialized production.
新工艺操作方便，成本低，三废少，具有工业化前景。
Due to the easy operation, low cost and little industrial waste, the new method could be used as a commertial process.
新工艺操作方便，成本低，三废少，具有工业化前景。
Due to the easy operation, low cost and little industrial waste, the new method could be used as a commertial process.
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