Publications by authors named "Bojiao Yan"
Article Synopsis
- Water pollution from emerging contaminants like pharmaceuticals, particularly antibiotics, has become a significant concern due to their role in developing antibiotic resistance.
- Two remediation methods, heat/peroxymonosulfate (PMS) and ultrasound (US)/PMS, were tested for their effectiveness in degrading the antibiotic tetracycline (TC) in water.
- The study found that both methods required the same optimal PMS concentration (0.3 mM) for TC degradation, but ultrasound was slightly more effective, achieving 80% removal of TC under specific conditions.
Article Synopsis
- Tetracycline (TC) contamination in water poses significant environmental challenges, and traditional treatment methods struggle to eliminate these antibiotic pollutants.
- A novel treatment system using biochar-loaded nano zero-valent iron (BC-nZVI) combined with activated persulfate (PS) was tested, achieving a remarkable 99.57% reduction of TC under optimal conditions.
- Key factors affecting degradation included iron-carbon ratio, dosing amount, PS concentration, and pH, with radicals like hydroxyl and sulfate identified as crucial in the breakdown process.
Nowadays, antibiotics are widely used, increasing the risk of contamination of the water body and further threatening human health. The traditional water treatment process is less efficient in degrading antibiotics, and the advanced oxidation process (AOPs) is cleaner and more efficient than the traditional biochemical degradation process. The combined ozone/peroxymonosulfate (PMS) advanced oxidation process (O/PMS) based on sulfate radical (SO) and hydroxyl radical (•OH) has developed rapidly in recent years.
View Article and Find Full Text PDFBiochar (BC) is a new type of carbon material with a high specific surface area, porous structure, and good adsorption capacity, which can effectively adsorb and enrich organic pollutants. Meanwhile, nano zero-valent iron (nZVI) has excellent catalytic activity and can rapidly degrade organic pollutants through reduction and oxidation reactions. The combined utilization of BC and nZVI can not only give full play to their advantages in the adsorption and catalytic degradation of organic pollutants, but also help to reduce the agglomeration of nZVI, thus improving its efficiency in water treatment and providing strong technical support for water resources protection and environmental quality improvement.
View Article and Find Full Text PDFBased on the Turian-Yuan heterogeneous resistance model, the simulation results of three urban sludge pipelines with a volumetric concentration of 2.38, 3.94, and 5.
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