Secondary treatment generally involves a biological process to remove organic matter through biochemical oxidation.
通常二次处理是利用生物法的生化氧化过程来去处有机物。
In combination with the RBC process, this system provides a very simple package plant for secondary treatment.
通过和RBC工艺结合，该系统可以提供非常简单的总包工厂对污水作二级处理。
The pickling process removes materials that may react with the main treatment fluid to create undesirable secondary reactions or precipitates damaging to the near-wellbore reservoir formation.
酸浸过程去除了可能与主处理液反应的物质，这些物质会产生不希望产生的二次反应或损害近井地层的沉淀物。
Treating combined sewage effluent from a secondary treatment plant, the process achieved 94.5% cadmium removal for the trace quantities present .
用这种方法处理二级处理厂排出的综合下水，可除去水中含镉量的94.5。
Test shows that the waste acid treatment with the calcining process has the advantages of good result, simple operation, no secondary pollution, better economic benefit and so on.
试验表明：该法处理废酸的效果良好，并具有操作简单、无二次污染和经济效益好等优点。
Therefore, the study was made on the use of subsurface crushed stone wetland for phosphorus removal from the effluent of secondary bio-chemical treatment process.
为此，开展了潜流碎石床湿地去除二级生化处理出水中磷的研究。
Therefore, the study was made on the use of subsurface crushed stone wetland for phosphorus removal from the effluent of secondary bio-chemical treatment process.
为此，开展了潜流碎石床湿地去除二级生化处理出水中磷的研究。
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