Permeable reactive barriers (PRBs) have shown great promise as an alternative to pump and treat for the remediation of groundwater containing a wide array of contaminants including organics, metals, and radionuclides. Analyses to date have focused on individual case studies, rather than considering broad performance issues. In response to this need, this study analyzed data from field installat...

Human capital theory and agency theory are two of the most important building blocks of labor economics. However, the connection between these two building blocks has never been explicitly analyzed. This paper demonstrates that a simple moral hazard model, based on the premise that an agent’s e¤ort has a persistent e¤ect on future productivity through human capital accumulation, generates rich ...

Red mud (RM) was produced during alumina production from bauxite known as the Bayer process. Arsenic was detected in the solid phase of RM (RMsf) which was disposed in the disposal area. This study investigates the effectiveness of using Zero-valent iron (ZVI), ferrihydrite, ferrous sulfate (FeSO4), waste acid (WA) or CO2 for immobilization of arsenic in the RMsf. To test the effect of the amen...

We provide an axiomatization of generalized utilitarian social welfare functions in the context of Harsanyi’s impartial observer theorem. To do this, we reformulate Harsanyi’s problem such that lotteries over identity (accidents of birth) and lotteries over outcomes (life chances) are independent. We show how to accommodate (…rst) Diamond’s critique concerning fairness and (second) Pattanaik’s ...

The management of dredged sediments is a priority issue in the Mediterranean sea where sediments are historically polluted. The aims of this study were to evaluate the toxicity of port sediment samples and the effect of three mineral additives (hematite, zerovalent iron (ZVI) and natural zeolite (NZ)) on sediment elutriate toxicity. Four sediments (A, B, C and D) were provided by port authoriti...

In this report is discussed a novel, easy, and general synthesis method to prepare zerovalent iron (ZVI) and copper (ZV Cu) nanoparticles (NPs), from colloid dispersions in an environmental friendly organic solvent, ethylene glycol (EG). Conventional metallic salts are used as nanoparticle precursors; sodium borohydride (NaBH4) is the reducing agent, and triethylamine (TEA) is used as the nanop...

Recent progress in the computation of one-loop gluon amplitudes is reviewed. These methods were originally derived from superstring theory and are significantly more efficient than conventional Feynman rules. With these methods, explicit computations can be performed beyond those achieved by traditional methods. Abstract Recent progress in the computation of one-loop gluon amplitudes is reviewe...

The Fe-based amorphous alloy (Fe78Si9B13AP) is applied to the remediation of copper contaminated soil for first time. dynamic process conversion movable Cu immobilized forms in system analyzed. In addition, form transformation Cu2+ ions morphology and phase composition reaction products are characterized by scanning electron microscopy (SEM) X-ray diffraction analysis (XRD). Finally, feasibilit...