The standard states that the citric acid-sodium nitrate treatment is the least hazardous for removal of free iron and other metallic contamination and light surface contamination.
该标准声明：柠檬酸-硝酸钠处理在去除游离铁合其他金属污染和轻的表面污染物时，危险性最低。
2
In this study, column experiments, including measurements of corrosion potential, were conducted to determine the effects of nitrate on trichloroethylene (TCE) degradation by granular iron.
为研究硝酸根对颗粒状铁降解三氯乙烯的影响，进行了柱实验和相应的反应铁腐蚀电位测定。
3
Phosphate, silicate, iron or nitrate can be limiting factor in the process of phytoplankton growing.