The purpose is to optimize the catalytic performance of biochar (BC), improve removal effect BC composites on organic pollutants in wastewater, and promote recycling sustainable utilization water resources. Firstly, various characteristics preparation principles new are discussed. Secondly, types wastewater their Finally, based principle removing pollutants, BC/zero valent iron (BC/ZVI) composi...

Hydrogen is becoming important clean energy while zerovalent iron (ZVI) and ferroferric oxide are of great interest to many applications including environmental remediation chemical catalysis. Here, we report production hydrogen, octahedron by etching Al–Fe alloys using NaOH solutions. The rate hydrogen generation increased with increasing concentration the alloy's particle size decreasing Fe c...

We investigated the performance of a heterogeneous Fenton-like reaction (ZVI-Fenton, i.e. , ZVI + H 2 O where = zero-valent iron) towards removal potentially pathogenic bacteria in wastewater (WW). The effectiveness process was live (measured by flow cytometry) as well (identified 16S rRNA amplicon sequencing), antibiotic resistance genes and class 1 integrons (assessed qPCR). ZVI-Fenton result...

Background & Aims of the Study: The heterotrophic bacteria are widely used as a water microbial pollution index for drinking water. The aim of this study was to investigate the effect of metallic nanoparticles such as Zero Valent Iron (ZVI), Titanium dioxide (TiO2) and Zinc oxide (ZnO) on Heterotrophic Bacter...

For nearly three decades, zero-valent iron (ZVI) has been used in wastewater treatment and groundwater soil remediation. ZVI can degrade contaminants by reactions of adsorption, redox, co-precipitation. It also react with oxidants like hydrogen peroxide, persulfate, ozone to produce highly reactive radicals that rapidly remove even mineralize organic contaminants. However, the application is li...

To solve the problem of poor treatment high concentration landfill leachate, an electro-assisted ultraviolet (UV)/zero-valent iron (ZVI) synergic activated persulfate (PS) system was used to treat leachate. The effects PS and ZVI dosage, initial pH value, current density on removal efficiency COD NH3-N in leachate were investigated. single PS, electrochemical, UV/PS, ZVI/UV co-activated compare...

Herein, respiratory nitrate reductases (NAR) were utilized in the biosynthesis of zero-valent iron (ZVI) graphene nanocomposite as a simultaneous reducing and capping agent, for first time, to efficiently adsorb methylene blue (MB) direct red-81 (DR-81). Under anaerobic conditions, greenly synthesized was incubated with precursor presence crude-NAR enzyme 48 h obtain ZVI composite followed by c...

Abstract In this study, zero-valent iron (ZVI) is applied to activate persulfate (PDS) for the degradation of amaranth (AMR). The effects PDS concentration, ZVI solution pH , temperature, and reaction time on AMR by ZVI/PDS advance oxidation process are investigated. Sulfate hydroxyl radicals involved in main pathway sulfate radical acts as a dominant oxidant. CCD (central composite design) pla...