中国造纸杂志社-造纸；纸浆；制浆；行业；专家；设备 关键词：硫酸钠；碳酸钠；碳酸钠矾；芒硝 [gap=740]Key words：Na2SO4; Na2CO3; 2Na2SO4·Na2CO3 (burkeite); Na2SO4·10H2O (mirabilite)
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In the test range, Na2SO4 rejection of NFⅠwas higher than 99%, permeate conductivity was lower than 170μs·cm-1; Na2SO4 rejection of NFⅡwas higher than 98%, permeate conductivity was lower than 370μs·cm-1, so the permeate quality can meet different requirement.
在试验范围内,NFⅠ膜对硫酸钠的截留率在99%以上,产水电导率小于170μs·cm-1;NFⅡ膜对硫酸钠的截留率大于98%,产水电导率小于370μs·cm-1 ,可满足不同用水要求。
参考来源 - 混凝—纳滤处理硅胶废水实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The introduction relates to current situation of resources of Na2SO4 and its exploitation and utilization at home and abroad.
介绍了国内外硫酸钠矿产的资源、开发和利用情况。
The activity of Na2SO4 can improve the performance of low-active flyash, such as improving the early strength, reducing cracks, shorting construction period and ensuring the construction quality.
用硫酸钠添加剂的方法改善低活性粉煤灰，可以提高二灰碎石的早期强度、减少裂缝、缩短施工周期，并保证施工质量。
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