钒污染 pollution by vanadium 钒的地壳平均丰度为135ppm，高于铜、铅、锌、钴等常见元素。基性岩含钒约200～250ppm,沉积岩含钒约20～130ppm。钒是一种很分散的元素，高含量的矿物很少。钒在冶金工业中用作炼制合金钢的组分，在化学工业中作为制备催化剂的原料。
酸性土壤对钒的缓冲能力强，缓冲容量大，不容易产生钒污染。
The acid soil has stronger buffer power nad larger buffer capacity, so it could not be easily polluted by vanadium.
对工业上应用的各种防止钒污染的方法分别作了阐述，并提出了建议。
Various commercial methods preventing vanadium pollution of catalyst were expounded and Suggestions were also proposed.
最后针对土壤中钒污染日益严重的状况，提出了几点防治对策和研究展望。
Some countermeasures and research prospects have been put forward to prevent and control the increasingly serious pollution of Vanadium in soil.
应用推荐