Removal of organic micropollutants by well-tailored granular zeolites and subsequent ozone-based regeneration
نویسندگان
چکیده
Advanced technologies to remove organic micropollutants (OMPs) from municipal wastewater have gained much attention over the last decades. Adsorption by zeolites is one of these technologies. In this study, regeneration performance well-tailored granular loaded with OMPs was evaluated. The selected were categorized into three groups due adsorption performance: high, medium and low adsorbance. Gaseous ozone directly applied regenerate dried zeolite granules at an concentration 30 mg/L a gas flow rate 0.2 L/min (0.04 m/s). For high adsorbing OMPs, 45 min ozonation long enough fully restore their capacity. efficiency reached 60% after 60 ozonation. Interestingly, recovered capacities firstly decreased subsequently increased along duration. dramatically decrease most probably presence transformation products generated some OMPs. seven sequential adsorption-regeneration cycles, capacity for 75% duration in each regeneration. assumed accumulation only influenced 7 cycles.
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ژورنال
عنوان ژورنال: Journal of water process engineering
سال: 2021
ISSN: ['2214-7144']
DOI: https://doi.org/10.1016/j.jwpe.2021.102403