Remediation of trichloroethylene by microscale zero-valent iron aged under various groundwater conditions: Removal mechanism and physicochemical transformation

2021 ◽  
Vol 775 ◽  
pp. 145757 ◽  
Author(s):  
Fenglin Tang ◽  
Fangming Tian ◽  
Lin Zhang ◽  
Xiupei Yang ◽  
Jia Xin ◽  
...  
Keyword(s):  
Zero Valent Iron ◽  
Removal Mechanism ◽  
Physicochemical Transformation

Removal of U(VI) from Leaching Process Wastewater by Zero-Valent Iron

2014 ◽  
Vol 539 ◽  
pp. 815-818
Author(s):  
Hua Zeng ◽  
Wei Ming Zhang ◽  
Yi Ran Li ◽  
Yuan Yuan Liu
Keyword(s):  
Iron Powder ◽  
Ph Value ◽  
Removal Rate ◽  
Zero Valent Iron ◽  
Removal Mechanism ◽  
Leaching Process ◽  
Process Wastewater ◽  
Better Than

The removing effectiveness of U(VI) in leaching process wastewater by Zero-valent iron (ZVI)(iron powder and waste scrap) has been studied. The effects of the dosage of ZVI, pH, shaking time and temperature on treatment effiency are investigated. The results showed that: ZVI has very good removal effect on U (VI), and when pH value of solution is 6, the dosage of ZVI is 1.5 g, the shaking time is 80 min, the removal rate reached 98.6%.The removing efficiency of iron powder is sightly better than waster scrap.Acorrding to the experiment, the optimum experiment conditions and the influence of these parameters are obtained. The removal mechanism of U(VI) in leaching process wastewater by ZVI is discussed.

Treatment of Dye Wastewater by Zero Valent Iron Composited Organobentonite

2011 ◽  
Vol 340 ◽  
pp. 229-235 ◽  
Author(s):  
Jian Feng Ma ◽  
Jian Ming Yu ◽  
Bing Ying Cui ◽  
Ding Long Li ◽  
Juan Dai
Keyword(s):  
Crystal Structure ◽  
Zero Valent Iron ◽  
Orange Ii ◽  
Dye Wastewater ◽  
Removal Mechanism ◽  
X Ray Diffraction ◽  
X Ray ◽  
Secondary Pollution ◽  
Novel Material ◽  
Adsorption Amount

A novel material, zero valent iron composited organobentonite (NZVI-OB), was synthesized to adsorb dye from wastewater and to degrade the dye for avoiding secondary pollution. The crystal structure was characterized with X-ray diffraction (XRD). The effect of initial Orange II concentration and reaction time on the removal of Orange II by the NZVI-OB was studied. And the removal mechanism of Orange II was discussed. The results show that the Orange II can be removed by NZVI-OB efficiently. The maximal adsorption amount is 112.66 mg/g. The iron can effectively degrade the organic compounds after adsorption pollution, the carbon contents of organic pollutions after catalyzed and oxidized by the iron are lowered to the 19% of the original.

Selenate removal by zero-valent iron in oxic condition: the role of Fe(II) and selenate removal mechanism

2015 ◽  
Vol 23 (2) ◽  
pp. 1081-1090 ◽  
Author(s):  
In-Ho Yoon ◽  
Sunbaek Bang ◽  
Kyoung-Woong Kim ◽  
Min Gyu Kim ◽  
Sang Yoon Park ◽  
...  
Keyword(s):  
Zero Valent Iron ◽  
Removal Mechanism ◽  
Oxic Condition

scholarly journals Mechanism of phosphate removal from aqueous solutions by biochar supported nanoscale zero-valent iron

RSC Advances ◽  
2020 ◽  
Vol 10 (64) ◽  
pp. 39217-39225
Author(s):  
Fengfeng Ma ◽  
Baowei Zhao ◽  
Jingru Diao ◽  
Yufeng Jiang ◽  
Jian Zhang
Keyword(s):  
Aqueous Solutions ◽  
Phosphate Removal ◽  
Zero Valent Iron ◽  
Removal Mechanism ◽  
Rape Straw ◽  
Nanoscale Zero Valent Iron

The purpose of this study was to investigate the removal mechanism of phosphate by rape straw biochar (RSBC) supported nanoscale zero-valent iron (nZVI).

scholarly journals Pyrolytic behavior of a zero-valent iron biochar composite and its Cu(ii) removal mechanism

RSC Advances ◽  
2018 ◽  
Vol 8 (59) ◽  
pp. 34151-34160 ◽  
Author(s):  
Changjiang Yu ◽  
Dashuai Zhang ◽  
Xinyu Dong ◽  
Qiang Lin
Keyword(s):  
Zero Valent Iron ◽  
Removal Mechanism

The Cu(ii) removal mechanism on ZBC8-3 involved the reduction of Cu(ii) by Fe0 to produce Cu0 and Cu2O, while CC, C–O–, –O–H formed a complex with Cu(ii).

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