Drinking water biofiltration offers the possibility of removal trace level micropollutants from source water. Sand, granular activated carbon (GAC), GAC sandwich (a layer loaded in middle sand bed), and anthracite-sand dual biofilters were set-up duplicate at bench-scale to mimic filtration process real drinking treatment works. During 3-month system operation, five antibiotics (amoxicillin, cl...

Abstract The physical/chemical abatement of gas pollutants creates many technical problems, is costly and entails significant environmental impacts. Biological purification off-gases a cheap ecologically safe way neutralization pollutants. Despite the recent advances, main technological challenge nowadays volatile organic compounds (VOCs) hydrophobic character due to their low solubility in wat...

ammonium ions wastewater pollution has become one of the most serious environmental problems today. the treatment of ammonium ions is a special concern due to their recalcitrance and persistence in the environment. in recent years, various methods for ammonium ion removal from wastewater have been extensively studied. this paper reviews the current methods that have been used to treat ammonium ...