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Effect of pyrolysis on the removal of antibiotic resistance genes and class I integrons from municipal wastewater biosolids
10.1039/C8EW00141C 2018-04-11 Wastewater biosolids represent a significant reservoir of antibiotic resistance genes (ARGs). While current biosolids treatment technologies can reduce ARG levels in residual wastewater biosolids, observed removal rates vary substantially. Pyrolysis is an ano... |
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Link between Dissolved Organic Matter transformation and process performance in a Membrane Bioreactor for urinary nitrogen stabilization
10.1039/C8EW00029H 2018-04-09 A lab-scale membrane bioreactor was fed with fresh urine collected from source-separated public toilets to perform full nitrification, urinary nitrogen stabilization and effluent sanitation. After acclimation, a nitrogen loading rate (NLR) of 1.2 kgTN/m3/d wa... |
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Biofilm bacterial community transition under water supply quality changes in drinking water distribution systems
10.1039/C8EW00033F 2018-04-06 In this work, the bacterial community transition characteristics of pipe wall biofilms and the iron release behaviors under water supply quality changes were investigated through pilot-scale experiments. Test pipelines that were harvested from actual drinking... |
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High-throughput microrespirometric characterization of activated sludge inhibition by silver nanoparticles
10.1039/C7EW00563F 2018-04-05 Silver nanoparticles (AgNPs) are widely used in a high number of industrial applications and are becoming prevalent in wastewater effluents. It is known that AgNPs exert a toxic effect on activated sludge processes, but to what extent and under which conditio... |
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Fabrication of magnetic particles reinforced nano-hydroxyapatite/gelatin composite for selective Cr(VI) removal from water
10.1039/C8EW00027A 2018-03-28 The presence of chromium ion in drinking water was found to be toxic and carcinogenic nature. Hence an attempt has been made for the synthesis of magnetic (Fe3O4) fabricated with nano-hydroxyapatite (n-HAp)/gelatin (Gel) biocomposite by both in-situ precipita... |
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Kenaf addition has mixed effects on process performance of sequencing batch reactors treating municipal wastewater
10.1039/C7EW00548B 2018-03-27 The effects on wastewater treatment due to addition to the mixed liquor of a fine lignocellulosic powder made of dried kenaf were assessed using lab-scale sequencing batch reactors (SBRs) operated for over 200 days. The treatment reactor augmented with kenaf ... |
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Emerging investigator series: the role of vegetation in bioretention for stormwater treatment in the built environment: pollutant removal, hydrologic function, and ancillary benefits
10.1039/C7EW00511C 2018-03-27 Vegetation influences both the hydrologic and pollutant-removal performance of bioretention cells for green infrastructure stormwater management in the built environment. Vegetation can intercept rainfall, lessen erosive sheetflow, ameliorate bioretention soi... |
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Effects of operating and design parameters on ion exchange columns for nutrient recovery from urine
10.1039/C7EW00478H 2018-03-27 Ion exchange is a promising option for recovering nutrients (nitrogen, phosphorus, and potassium) from source-separated urine. We determined that it was feasible to integrate nitrogen and potassium recovery via cation exchange with phosphorus recovery, either... |
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Synthesis and application of a highly selective molecularly imprinted adsorbent based on multi-walled carbon nanotubes for selective removal of perfluorooctanoic acid
10.1039/C7EW00443E 2018-03-26 In this work, a kind of novel surface molecularly imprinted polymers (MIPs) based on multi-walled carbon nanotubes (MWCNTs) for selective removal of perfluorooctanoic acid (PFOA) was prepared using PFOA as the template, acrylic amide (AAM) as the functional m... |
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Characterization of ultraviolet-quenching dissolved organic matter (DOM) in mature and young leachates before and after biological pre-treatment
10.1039/C7EW00544J 2018-03-23 The discharge of municipal landfill leachate into publicly owned treatment works (POTWs) is a common leachate management practice in the United States. However, the benefits of this option have diminished in many POTWs because leachate can significantly inter... |