Marco Petrangeli Papini

TL;DR: In this paper, a review on the current knowledge on the properties, reactivity and mobility in porous media of nZVI and their application to groundwater remediation is presented, where a specific focus is devoted to the methodologies to the colloidal stability of the NZVI slurries and to the available numerical tools for the simulation of laboratory and field scale mobility of the particles when injected in a porous media.

TL;DR: Interestingly, dechlorinating activity was observed under sulfate-reducing conditions; this suggests that it may not be necessary to deplete the sulfate from the groundwater, for instance by supplying an excess electron donor, in order to achieve substantial dechlorination.

TL;DR: In this article, a sequencing batch reactor (SBR) was used for the production of polyhydroxyalkanoates (PHAs) from organic acids by mixed bacterial cultures using a process based on aerobic enrichment of activated sludge, that selects for mixed microbial cultures able to store PHAs at high rates and yields.

TL;DR: In spite of decreasing activity with time, the H(2)-fed reactor proved to be the most effective in PCE dechlorination: after about 500 days, more than 65% of the added PCE was dechlorinated to ethene in the H-2-fed reactor, versus 36%, 22%, and <1% in the methanol-fed, butyrate- fed, and control reactors, respectively.

TL;DR: In this article, the influence of layered media and hydraulic gradient on DNAPL infiltration and redistribution processes has been evaluated with and without groundwater flow in a two-dimensional laboratory-scale tank.