The present situation of the groundwater contamination caused by carbon tetrachloride and the pollution control techniques at home and abroad are introduced in this paper.
重点分析了国内外地下水四氯化碳污染的现状和治理技术研究进展。
After these techniques were used, running of BOF is stable and safe, control accuracy is improved, pollution to environment is reduced, and recovery of energy is also raised.
应用这些技术后，转炉生产稳定顺行，提高了控制精度，减少了对环境的污染，提高了能源的回收利用。
The characteristics of runoff pollution are analyzed, the necessity of the runoff pollution control is summarized, and the control techniques of runoff pollution are mainly discussed in this paper.
分析了径流污染产生的特点，概括了城市雨水径流污染控制的必要性，并着重论述了径流污染控制技术。
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