The pre-treatment of them before conventional cyanide leaching includes roast, chemical oxidation and biological oxidation.
在传统氰化浸出之前进行的预处理过程包括焙烧，化学氧化和生物氧化。
The experiment results show that the new method is a simple and efficient method for direct detection of trace drug, toxicant and their metabolites in biological samples without sample pre-treatment.
实验结果表明，该法是一种简便、有效、不需进行样品预处理而可直接对生物样品中药物和毒物进行检测的方法。
The real effect the Hydraulic load does for the effect of water biological pre-treatment by elastic packing.
水力负荷的大小对于弹性填料生物预处理净化水质的效果随不同项目有不同的影响。
Biological zeolite pre treatment has the same pollutants removal effect of Bio activated carbon and Bio ceramsite.
生物沸石预处理有同生物活性炭、生物陶粒预处理一样的污染物去除效果。
The operation of hydrolysis acidification/pre-denitrification up-flow biological filter in Jingmen Fengle Wastewater Treatment Plant was introduced and summarized.
结合江门市丰乐污水处理厂工程，介绍和总结了水解酸化/前置反硝化上向流生物滤池工艺及其运行情况。
The operation of hydrolysis acidification/pre-denitrification up-flow biological filter in Jingmen Fengle Wastewater Treatment Plant was introduced and summarized.
结合江门市丰乐污水处理厂工程，介绍和总结了水解酸化/前置反硝化上向流生物滤池工艺及其运行情况。
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