WEN Rui-mei, FAN wei, DENG shou-quan. A New Method of Removing Trace Ammonia from High Purity Water by Using Electrodeionization[J]. Acta Electronica Sinica, 2006, 34(8): 1367-1371.
WEN Rui-mei, FAN wei, DENG shou-quan. A New Method of Removing Trace Ammonia from High Purity Water by Using Electrodeionization[J]. Acta Electronica Sinica, 2006, 34(8): 1367-1371.DOI：
In this paper a new method of removing trace ammonia (NH
3
and H
4
+
) from high purity water by using electrodeionization(EDI) was studied.The removing of ammonia from high purity water and its mechanism were investigated.The dependence of the effectiveness of removing ammonia (NH
3
and NH
4
+
) on electrical current
inlet conductivity
inlet flow rate and pH value was shown.After one EDI treament the total ammonia concentration was decreased from 208mg/L to 0.072mg/L.This method is also effective for removing NH4+ ion from water.After EDI treatment NH4Cl concentration was decreased from 20~100mg/L to below 0.026mg/L.This method giving ammonia concentr
ation much less than the required concentration of ＜0.5mg/L for space water proved to be the most effective among other methods for removing trace ammonia in high pure water.The species configuration during removing ammonia from water was also investigated.
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