% reductions 1 Aggregates 1 Batch adsorption tests 1 Condition 1 Drinking water purification 1 Efficiency 1 Green rust 1 Hexavalent chromium 1 Magnetite 1 Magnetite nanoparticles 1 Morphology 1 Oxidative precipitation Polluted water 1 Potable water 1 Precipitation (chemical) 1 Purification 1 Sulfur compounds 1 Surface configuration 1 Synthesis (chemical) 1 Uptake capacity 1 Water pollution 1 drinking water 1 green rust 1 hexavalent chromium 1 magnetite 1 nanoparticles 1 reduction 1 synthesis 1