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- W2388355626 abstract "In this paper chemical reduction of nitrate by metallic iron(Fe0)was studied as a potential technology to remove nitrate from water.Under experimental conditions 100~200 mesh zero-valent iron was used as the reducing agent.And the effect of initial pH,concentration of nitrate,DO,iron-to-nitrate ratio and the iron surface pre-treatment on both nitrate reduction rate and percent removal were investigated through batch experiments.The results of batch experiments conducted in an iron/nitrate/water system showed that nitrate removal was strongly dependent on initial pH and nitrate could be rapidly reduced to ammonium at pH 2~4.And nitrate removal was accompanied by a pH increase,DO decrease and solution iron increase.The nitrate removal rate of polished iron was 2 times higher than that of that of unpolished iron granular.In the denitrification process,the rate of nitrate reduction by iron increased with increasing nitrate concentration and DO might not have little effect on the nitrate removal.Our conclusion is that the optimal quality ratio of iron-to-nitrate as N was 200:1;And the mass balance of nitrate reduction with iron at low pH indicated that endproducts mainly are ammonia." @default.
- W2388355626 created "2016-06-24" @default.
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- W2388355626 date "2006-01-01" @default.
- W2388355626 modified "2023-09-28" @default.
- W2388355626 title "Nitrate Reduction by Zero-Valent Iron from Groundwater" @default.
- W2388355626 hasPublicationYear "2006" @default.
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