Nitrate reduction using nanoscale zero valent iron supported by porous suspended ceramsite

被引：2
作者：
Liao Runhua [1 ,2 ]
Miao Yu [2 ]
Hong Yan [1 ]
Li Yueming [1 ]
Shen Zongyang [1 ]
Wang Zhumei [1 ]
机构：
[1] Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333403, Peoples R China
[2] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China
来源：
ADVANCES IN ENVIRONMENTAL TECHNOLOGIES, PTS 1-6 | 2013年 / 726-731卷
关键词：
Nano zerovalent iron; Porous suspended ceramsite; Nitrate Reduction; SEM-EDS; ZEROVALENT IRON; CHEMICAL-REDUCTION; KINETICS; NANOPARTICLES; WATER; DENITRIFICATION; REACTIVITY; CATALYSTS; NITRITE;
D O I：
10.4028/www.scientific.net/AMR.726-731.677
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Porous suspended ceramsite (PSC) supported nanoscale zero valent iron (NZVI/PSC) were applied to the reductive removal of nitrate to investigate the effects. XRD, SEM and EDS analyses on NZVI/PSC revealed that PSC had loaded some nanoparticles, whose size was about 50 nm. Nitrate reduction rate of NZVI/PSC reached about 80% in 60 min, while the PSC unsupported nano zerovalent iron performed poorly with only 8% removal of the nitrate. Furthmore, during the reactions of NZVI/PSC and PSC with nitrate, for the NZVI/PSC, pH change was the greatest, while the reaction with PSC (this particles shows the lowest reactivity for nitrate reduction) resulted in the least pH change.
引用
收藏
页码：677 / +
页数：3
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