Study on degradation of nitrobenzene in groundwater using emulsified nano-zero-valent iron

摘要: Emulsified nano-zero-valent iron (EZVI) is a modified form of bare nanoiron with improved transportability and targetability for the remediation organic-solvents polluted soil groundwater. In this work, EZVI (50–150 nm) was prepared by coating an emulsified vegetable oil membrane on surface Fe nanoparticles. well-dispersed less aggregation observed. Batch experiments were conducted in anaerobic conditions to investigate kinetics nitrobenzene reduction influences concentration, initial content, pH. Results indicated that followed pseudo-first-order kinetics. The observed rate constant 0.0942 min−1. concentration 1 2 % tended be preferred concentrations. degradation aniline formation increased increasing content. low pH favorable EZVI.