Biological magnetic ion exchange resin on advanced treatment of synthetic wastewater

Xu, Sen; Yan, Yunbao; Shuang, Chendong; Zhou, Qing; Ji, Rong; Li, Aimin

doi:10.1016/j.biortech.2023.128613

Cited by 13 publications

(6 citation statements)

References 44 publications

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“…The higher ATP content than in Amini et al’s work could be attributed to differences in the water sample used, as our biological effluent favored microorganism growth. In a previous study using methanol as DOC, we observed ATP amounts of up to 3.21 nmol/g for the BIEX system and 2.37 nmol/g for the BAC system …”

Section: Resultsmentioning

confidence: 75%

“…Our previous work demonstrated that both DOC removal (84%) and ibuprofen removal (nearly 100%) were almost attributed to the biological effect by using methanol as the major component for DOC. 21 DOC biodegradability in natural water was generally lower than 20% in the portion. 22−24 For the biological effluent, the biodegradability of DOC has been reported in a large range from 15 to 60%.…”

Section: ■ Introductionmentioning

confidence: 92%

“…In a previous study using methanol as DOC, we observed ATP amounts of up to 3.21 nmol/g for the BIEX system and 2.37 nmol/g for the BAC system. 21 The suitability of the ATP amount as an indicator of biological activity seems questionable. The lower ATP amounts on resins compared to AC are possibly caused by the interaction between ATP and anion exchange resin because ATP molecules are negatively charged at the natural pH value.…”

Section: ■ Introductionmentioning

confidence: 99%

“…This difference in biological contribution theoretically depends on DOC biodegradability, and DOC has complex composition due to the different sources and components. Our previous work demonstrated that both DOC removal (84%) and ibuprofen removal (nearly 100%) were almost attributed to the biological effect by using methanol as the major component for DOC . DOC biodegradability in natural water was generally lower than 20% in the portion. − For the biological effluent, the biodegradability of DOC has been reported in a large range from 15 to 60%. − Accordingly, biological resin could be applied in the treatment of biological effluent.…”

Section: Introductionmentioning

confidence: 99%

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Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Yan,

Zong,

Shuang

et al. 2024

ACS EST Water

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The biological ion exchange (BIEX) process has been proposed by utilizing a simultaneous biodegradation and ion exchange process for reducing the brine waste production from ion-exchange resin (IER) regeneration. In this work, we investigated two BIEX systems for biological effluent treatment, employing MAEX resin and Purolite A860 resin, which were compared with bioactivated carbon (BAC) and traditional activated sludge (AS). Over 0−120 days of operation, dissolved organic carbon (DOC) removal values were 52.5% (bio-MAEX), 48.1% (bio-A860), 18.5% (BAC), and 10.5% (AS). Both IERs could enhance biological activity, as indicated by their higher ATP and protein levels. Consequently, both BIEX systems were capable of a rapid restart within 15 days after storage at 4 °C, achieving stable DOC removal values of 45% (bio-MAEX) and 40% (bio-A860). As the ion exchange/ adsorption reached equilibrium, the biocontribution to DOC removal for both BIEX systems increased from 35% (0−120 days) to 63.5% (121−240 days). Furthermore, the removal efficiencies for pharmaceuticals (ibuprofen, indomethacin, diclofenac, roxithromycin, and clarithromycin) were 92.7% (bio-MAEX), 90.9% (bio-A860), 89.5% (BAC), and 86.3% (AS). The biocontribution values to pharmaceutical removal were evaluated as 53.9 ± 6.4% (bio-MAEX), 47.5 ± 11.8% (bio-A860), and 38.9 ± 11.0% (BAC). The results showed that BIEX can perform well in the advanced treatment.

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Section: Resultsmentioning

confidence: 75%

Section: ■ Introductionmentioning

confidence: 92%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Yan,

Zong,

Shuang

et al. 2024

ACS EST Water

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“…The traditional methods of water treatment have certain limitations, such as adsorption requiring specific temperature and pH, 4 biotechnology having poor periodicity, 5 and chemical oxidation being expensive and producing secondary pollution. 6 Photocatalysis, however, is a more efficient, cost-effective, and environmentally friendly method of pollutant treatment.…”

Section: Introductionmentioning

confidence: 99%

Near-Infrared-Driven β-NaYF₄:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants

He,

Meng,

Adamu

et al. 2023

ACS Appl. Nano Mater.

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The β-NaYF4:Yb,Tm,Gd/Ni-MOF (UCNR/Ni-MOF, UNM) nanocomposites were successfully synthesized via a simple two-step hydrothermal method. Excited by a 980 nm laser, UCNRs produce ultraviolet and visible light, activating the Ni-MOF and generating a significant quantity of electron/hole pairs (e–/h+). These e–/h+ pairs can then react with O2 and H2O to create reactive oxygen species (ROS), which can be used for antibacterial purposes. Characterization techniques including transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) were utilized to analyze the structure, optical properties, composition, and morphology of the UNM nanocomposites. The photocatalytic performance of UNM was evaluated by testing its ability to kill E. coli and S. aureus as well as degrade rhodamine B (RhB) under 980 nm near-infrared light irradiation (1.0 W/cm2). After 18 min of reaction, the bactericidal rates against E. coli and S. aureus were observed to be roughly 100 and 99.99%, respectively. Similarly, ∼98.49% of RhB was degraded within 180 min. Free radical capture experiments were conducted to further investigate the mechanism of UNM photocatalysis. The main active species involved were determined to be ·O2 – and h+. In addition, UNM was able to retain ∼86.25% of its degradation rate toward RhB after four cycles of cycling experiments, which demonstrated its good stability. Therefore, this study provides a potential strategy to eliminate bacteria and degrade hazardous pollutants in order to mitigate environmental pollution.

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Enhanced adsorption of Methylene blue with walnut shell carbon chemically activated by K2CO3

Ren,

Li,

2024

Biomass Conv. Bioref.

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Biological magnetic ion exchange resin on advanced treatment of synthetic wastewater

Cited by 13 publications

References 44 publications

Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Near-Infrared-Driven β-NaYF₄:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants

Enhanced adsorption of Methylene blue with walnut shell carbon chemically activated by K2CO3

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Biological magnetic ion exchange resin on advanced treatment of synthetic wastewater

Cited by 13 publications

References 44 publications

Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Advanced Treatment of Wastewater by Biological Ion-Exchange Resin for Dissolved Organic Carbon and Pharmaceutical Removal

Near-Infrared-Driven β-NaYF4:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants

Enhanced adsorption of Methylene blue with walnut shell carbon chemically activated by K2CO3

Contact Info

Product

Resources

About

Near-Infrared-Driven β-NaYF₄:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants