Feedstock demands meeting hydrocarbon steam reforming process including impurity contents of olefins, aromatics, sulfur, arsenic and chloride, as well as dry point of light fraction were introduced.

介绍烃类水蒸气转化制氢工艺对原料的要求，加烯烃、 芳烃、硫、砷和氯等杂质的含量，以及轻油的干点等。

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The arsenic wastewater treated by polysilicate ferric aluminum chloride (PSFAC) was studied.

对聚硅酸氯化铝铁混凝处理含砷废水进行了研究。

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Objective: to establish a method of hydride generation-atomic fluorescence spectrometer (HG-AFS) for the determination of arsenic in poly-aluminium sulfate and poly-aluminium chloride.

目的：建立氢化物-原子荧光法测定水处理剂聚合氯化铝和硫酸铝中砷的方法。

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Among those: eliminating polyvinyl chloride and brominated flame retardants from all its products by 2009, and removing mercury and arsenic from its products' displays.

WSJ: How Green Is Apple?