Efforts to achieve the decomposition of carbon tetrachloride through anaerobic and aerobic bioremediation and chemical transformation have met with limited success because of the conditions required and the formation of hazardous intermediates. Recently, particles of zero-valent iron (ZVI) have been used with limited success for in situ remediation of carbon tetrachloride. We studied a modified...

EHC ® is an integrated combination of controlled-release plant-derived carbon plus micro-scale zero valent iron (ZVI) particles used for stimulating in situ chemical reduction of otherwise persistent organic compounds in groundwater. EHC-M ® uses the same combination plus a source of sulphate (if needed) to promote the precipitation of dissolved metals. In evaluating the longevity of EHC, sever...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The objective of this work is to study reduction of nitrate concentration using zero-valent iron (ZVI) which has its application in permeable reactive barriers (PRBs). Also, to find out effect of concrete penetrating corrosion inhibiting admixture ...

Reductive degradation of three typical multi-substituted nitroaromatic pollutants by zero valent iron was comprehensively compared in terms of performance, kinetics, toxicity and mechanisms in this study. The results showed that 0.5 mM 2,4-dinitrochlorobenzene (DNCB), 2,4-dinitroanisole (DNAN) and 2,4-dinitrophenol (DNP) could be completely removed in the ZVI reduction system within 75 min, 90 ...

This study demonstrated the synergistic degradation of 4-chlorophenol (4-CP) achieved in a magnetic field (MF) enhanced zero-valent iron (ZVI)/H2O2 Fenton-like (FL) system and revealed an interesting correlative dependence relationship between MF and the pristine iron oxides layer (FexOy) on ZVI particles. First, a comparative investigation between the FL and MF-FL systems was conducted under d...

The year 1999 has marked twenty years since Martin Feldstein asked Zvi Griliches, and Zvi agreed, to head up a new NBER Program on Technological Change and Productivity Measurement. Over the last two decades, one of the important research emphases of this NBER program has been a focus on price and output measurement. As part of the twentieth anniversary and during the NBER’s 1999 Summer Institu...

Currently, sulfate-radical-based advanced oxidation processes are promising candidates to become viable post-treatment for wastewater purification. In this work, a continuous flow UV light/persulfate (PS)/zero-valent iron (ZVI) system has been applied treatment the first time. The influence of certain photo-Fenton-like process parameters, such as space time, PS concentration, and ZVI molar rati...

• ZVI-Cu/C composites were prepared from spent LIB anode and mill scale. High dispersed ZVI-Cu particles on graphite obtained after carbothermic reaction. Removal of 4-CP by reduction oxidation reactions. Hydroquinone 4-chlorocatechol identified as intermediate products degradation. has lower cost comparable performance with other catalysts for removal. Graphite supported zero-valent iron-coppe...

Vol. XLIII (February 2006), 1– 1 © 2006, American Marketing Association ISSN: 0022-2437 (print), 1547-7193 (electronic) *Zvi Gilula is Adjunct Professor of Statistics, Department of Statistics, Hebrew University (e-mail: [email protected]). Robert E. McCulloch is Sigmund E. Edlestone Professor of Econometrics and Statistics (e-mail: [email protected]), and Peter E. Rossi i...