scholarly journals Preparation of nanoscale zero-valent iron and its application in coking wastewater treatment

2021 ◽  
Vol 687 (1) ◽  
pp. 012052
Author(s):  
Shihong Wu ◽  
Le Yu ◽  
Meiling Li
Keyword(s):  
Wastewater Treatment ◽  
Zero Valent Iron ◽  
Coking Wastewater ◽  
Nanoscale Zero Valent Iron

Preparation, Characterization of Nanoscale Zero-Valent Iron and its Application in Coking Wastewater Treatment

2011 ◽  
Vol 194-196 ◽  
pp. 511-514
Author(s):  
Xue Zhang ◽  
Su Qin Li ◽  
Kudureti Ayijamali
Keyword(s):  
Wastewater Treatment ◽  
Chemical Reactivity ◽  
Zero Valent Iron ◽  
Coking Wastewater ◽  
Iron Particles ◽  
X Ray Diffraction ◽  
Adsorption Ability ◽  
Phase Reduction ◽  
Nanoscale Zero Valent Iron

As a new kind of materials, nanoscale zero-valent iron which had excellent adsorption ability and high chemical reactivity had been widely applied in advanced wastewater treatment. In this paper, the preparation of nanoscale zero-valent iron particles was liquid phase reduction ,and then iron nanoparticles were characterized by scanning electron microscope and X-ray diffraction. Also the application of nanoscale zero-valent iron in the difficult degradation coking wastewater treatment was discussed.

Study on Removal of NH4+-N by Zero-Valent Iron (ZVI or Fe0) in Advanced Coking Wastewater Treatment

2010 ◽  
Vol 160-162 ◽  
pp. 1647-1653
Author(s):  
Su Qin Li ◽  
Yun Fei Xiong ◽  
Xue Zhang ◽  
Ayijamali Kudureti
Keyword(s):  
Wastewater Treatment ◽  
Critical Parameter ◽  
Removal Rate ◽  
Zero Valent Iron ◽  
Chemical Agent ◽  
Coking Wastewater ◽  
Variable Parameters ◽  
N Concentration ◽  
N Removal ◽  
Initial Ph

In this study, the feasibility of a new chemical agent named zero-valent iron (ZVI or Fe0) was used to investigate for removal of NH4+-N from coking wastewater. Reaction pH, dose of Fe0, initial NH4+-N concentration and temperature were considered variable parameters. The pH was observed as the major critical parameter. The removal rate of NH4+-N decreased as the pH increased from 3 to 6 and then increased from pH 6 to pH 9. At pH of 8.0 about in coking wastewater, the NH4+-N removal might be depended on the types and quantity of corrosion products on the surface of Fe0. The removal rate of NH4+-N increased with increase of temperature in the studied range of 10–60°C. At an initial NH4+-N concentration of 134.17 mg/L, Fe0 concentration of 6 g/L, temperature of 60°C and initial pH of 8.0, the removal rate of NH4+-N increased to 54.94%. The dose of Fe0 is determined according to the nitrogen content in coking wastewater.

Nanoscale zero-valent iron in mesoporous carbon (nZVI@C): stable nanoparticles for metal extraction and catalysis

2017 ◽  
Vol 5 (9) ◽  
pp. 4478-4485 ◽  
Author(s):  
Wei Teng ◽  
Jianwei Fan ◽  
Wei Wang ◽  
Nan Bai ◽  
Rui Liu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Mesoporous Carbon ◽  
Precious Metals ◽  
Resource Recovery ◽  
Zero Valent Iron ◽  
Metal Extraction ◽  
Low Level ◽  
Nanoscale Zero Valent Iron

Extraction of precious metals from low-level sources such as wastewater is of significance for water/wastewater treatment and resource recovery.

Adsorption and advanced oxidation of diverse pharmaceuticals and personal care products (PPCPs) from water using highly efficient rGO–nZVI nanohybrids

2020 ◽  
Vol 6 (8) ◽  
pp. 2223-2238 ◽  
Author(s):  
Arvid Masud ◽  
Nita G. Chavez Soria ◽  
Diana S. Aga ◽  
Nirupam Aich
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Personal Care Products ◽  
Advanced Oxidation ◽  
Zero Valent Iron ◽  
Redox Activity ◽  
Personal Care ◽  
Adsorption Sites ◽  
Reduced Graphene ◽  
Nanoscale Zero Valent Iron

Reduced graphene oxide-nanoscale zero valent iron (rGO–nZVI) nanohybrid, with tunable adsorption sites of rGO and unique catalytic redox activity of nZVI, perform enhanced removal of diverse PPCPs from water.

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