Batch experiments were conducted to test the effects of various solution properties, such as pH, temperature, initial concentration and anoxic and aerobic atmosphere, on Cd removal by nanoscale zerovalent iron (nZVI) supported on industrial coal fly ash. Cd (II) could be removed by adsorption on fly ash-nZVI in a very short time (5 min) with high removal rates (greater than 99.9%) over a wide r...

Removal of As(V) using nanoscale iron particles was examined in batch reactors. Nanoscale iron particles, utilizing zerovalent iron with a diameter less than 100 nm as reactive materials, have been demonstrated to effectively remediate a wide variety of common environmental contaminants. In this study, characterization of nanoscale iron particles and their corrosion products was conducted using...

The known properties of alkyl and aryl derivatives of transition elements are reviewed, with particular attention to binary compounds of this type. Factors contributing to thermal stability of metal—carbon a-bonds are discussed and new contributions are presented dealing with: (1) chemistry of titanium(Iv) and titaniurn(n); (ii) metal—carbon bonds in N,N'-ethylenebis(salicylideneiminato) comple...

Perchlorate (ClO4) may appear to be just another addition to a growing list of halogenated chemicals that persist in the environment, but the chemical characteristics of this inorganic anion make it quite unusual. Typical chlorinated aliphatic compounds, such as trichloroethylene (TCE), are relatively insoluble carbonaceous compounds, strictly used for industrial purposes. They are volatile, ad...

A new kind of micro-electrolysis filler sewage sludge biochar/zero valent iron (SSBC/ZVI) composite was prepared for a real chemical synthesis based pharmaceutical wastewater pretreatment improving the biodegradation index (BI). The optimal operation condition system obtained at HRT 2 h, initial pH 3.0 and dosage 100 g/L, with COD removal rate 30.5%. Characterization analysis raw/used SSBC/ZVI ...

The management of mature landfill leachate (MLL) represents an increasingly crucial issue to tackle. In this study, the feasibility integrated treatment was investigated at laboratory scale using synthetic with objective maximizing recovery potentially useful compounds present in (especially ammonia nitrogen). First, order remove heavy metals, active filtration MLL carried out zero-valent iron ...