Dehghani M, Haghighi A Binaee, Zamanian Z
Research Center for Health Sciences, Department of Occupational Health, College of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Pak J Biol Sci. 2010 Jun 1;13(11):551-5. doi: 10.3923/pjbs.2010.551.555.
The aim of this research is to study the feasibility of removing nitrates from water by means of anion exchange. In the purposed work an attempt was made to utilize strong basic anion resin to remove nitrate in the presence of competitive anion. Amberjet Cl- 4200 ion exchange resin was used in a batch scale. The fixation rate of nitrate without the presences of any competitive anion was almost constant (94.60-96.43) when the nitrate concentrations are in the range of 100-150 mg L(-1). The fixation rate of nitrate in the presences of two competitive anions (sulphate and chloride) was reduced to 82% when the concentration of nitrate was 100 mg L(-1).
本研究的目的是研究通过阴离子交换从水中去除硝酸盐的可行性。在这项既定工作中，尝试利用强碱性阴离子树脂在存在竞争性阴离子的情况下去除硝酸盐。采用批量规模使用Amberjet Cl- 4200离子交换树脂。当硝酸盐浓度在100 - 150 mg L(-1)范围内时，在不存在任何竞争性阴离子的情况下，硝酸盐的固定率几乎恒定（94.60 - 96.43）。当硝酸盐浓度为100 mg L(-1)时，在存在两种竞争性阴离子（硫酸根和氯离子）的情况下，硝酸盐的固定率降至82%。
