Dimitris V. Vayenas

TL;DR: In this article, a pilot-scale trickling filter with dual layer support material was constructed and tested for simultaneous biological removal of ammonia, iron and manganese from potable water.

TL;DR: Toxicity tests currently performed with the use of larvae of the fairy shrimp Thamnocephalus platyurus revealed a substantial decrease in the toxic potential of printing ink wastewater, thus indicating the efficiency of the proposed electrocoagulation process.

TL;DR: In this paper, the Gibbs Free-Energy Minimization model (GFEMN) was used to simulate the partitioning of PM2.5 nitrate aerosol and nitric acid using highly time-resolved inorganic measurements collected at the Pittsburgh Air Quality Study during July 2001 and January 2002.

TL;DR: In this paper, the kinetics of hexavalent chromium bio-reduction in draw-fill suspended and attached growth reactors was examined using sugar as substrate and indigenous microorganisms from the industrial sludge of the Hellenic Aerospace Industry.

TL;DR: In this paper, an observation-based box model, the thermodynamic model with removal (TMR), was introduced to estimate responses of PM 2.5 to precursor concentrations, and the model was used to investigate sulfate, total ammonia, and total nitric acid control strategies for western Pennsylvania during the winter using measurements obtained in the Pittsburgh Air Quality Study.