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  • 11
    Online Resource
    Online Resource
    Asian Journal of Chemistry ; 2014
    In:  Asian Journal of Chemistry Vol. 26, No. 3 ( 2014), p. 860-864
    In: Asian Journal of Chemistry, Asian Journal of Chemistry, Vol. 26, No. 3 ( 2014), p. 860-864
    Type of Medium: Online Resource
    ISSN: 0970-7077 , 0975-427X
    Language: Unknown
    Publisher: Asian Journal of Chemistry
    Publication Date: 2014
    detail.hit.zdb_id: 3140213-6
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  • 12
    Online Resource
    Online Resource
    American Scientific Publishers ; 2021
    In:  Journal of Biobased Materials and Bioenergy Vol. 15, No. 1 ( 2021-02-01), p. 61-68
    In: Journal of Biobased Materials and Bioenergy, American Scientific Publishers, Vol. 15, No. 1 ( 2021-02-01), p. 61-68
    Abstract: Black-odor water remains an important problem of water pollution control in China. An increasing number of studies have thus investigated combined technologies for water pollution. Among them, many researchers prefer the intimate coupling of photocatalysis and biodegradation (ICPB) for its characteristics of high efficiency and high removal rate for refractory organics. In this study, porous cellulose-TiO 2 , which has advantages of good responsiveness, stability, and friendliness towards microorganisms, was introduced into the ICPB system as a crucial carrier for cleaning black-odor water. The key factors of this system were changed to obtain the optimum conditions (carrier mass 4 g, pH 7, and light intensity 25 W), and three comparison protocols including UV-responsive photocatalysis (UPC), biodegradation (B), and the coupled (PB) were carried out. The results showed removal rates of 59.06% (UPC), 68.20% (B), and 92.06% (PB) for COD, 59.96% (UPC), 82.36% (B), and 97.16% (PB) for NH 3 –N, and 69.00% (UPC), 85.61% (B), and 94.83% (PB) for TP. Obviously, the coupled treatment exhibited the maximum removal rates for the three indexes. Moreover, with the coupled treatment, the effluent water quality could meet the requirement of Class III water of the Environmental Quality Standard for Surface Water (GB3838-2002).
    Type of Medium: Online Resource
    ISSN: 1556-6560
    Language: English
    Publisher: American Scientific Publishers
    Publication Date: 2021
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  • 13
    Online Resource
    Online Resource
    American Scientific Publishers ; 2020
    In:  Journal of Biobased Materials and Bioenergy Vol. 14, No. 4 ( 2020-08-01), p. 524-530
    In: Journal of Biobased Materials and Bioenergy, American Scientific Publishers, Vol. 14, No. 4 ( 2020-08-01), p. 524-530
    Abstract: In general, nitrogen and phosphorus in eutrophic water are absorbed by submerged plants for growth, which is considered as a feature and frequently applied in sustainable wastewater treatment. These plants are entirely submerged at the bottom of the water, absorbing nitrogen and phosphorus by roots, stems, leaves and epidermal cells. Compared with other species of aquatic plants, submerged plants show certain advantages in the aspects of planting area, total biomass and total removal of nitrogen and phosphorus. Rational utilization of submerged plants is an effective way to remove nitrogen and phosphorus from eutrophic water. Submerged macrophyte has been at the focus of attention in recent years as an alternative system for aquatic plant wastewater treatment with several applications in eutrophication. Aiming at the pollution control scheme of inland lakes, in this study, the removal of nitrogen and phosphorus by Hydrilla verticillaya ( H. verticillaya ) and Vallisneria natans ( V. natans ) were studied and compared in monoculture and mixed-culture plantings, thus screened the best submerged plants. Results showed that the removal capacity for ammonium (NH + 4 –N), Nitrate (NO – 3 –N) and total phosphorus (TP) from high to low was NH + 4 –N, NO – 3 –N, and TP. Reasonable allocation of plants can improve the removal efficiency of nitrogen and phosphorus. The order of removal capacity for different submerged plants to pollutants was: mixed culture V. natans and H. verticillaya 〉 H. verticillaya 〉 V. natans . The transformation of NO – 3 –N to NH + 4 –N was considered as the NH + 4 –N removal mechanism.
    Type of Medium: Online Resource
    ISSN: 1556-6560
    Language: English
    Publisher: American Scientific Publishers
    Publication Date: 2020
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  • 14
    Online Resource
    Online Resource
    American Scientific Publishers ; 2022
    In:  Journal of Biobased Materials and Bioenergy Vol. 16, No. 5 ( 2022-10-01), p. 659-667
    In: Journal of Biobased Materials and Bioenergy, American Scientific Publishers, Vol. 16, No. 5 ( 2022-10-01), p. 659-667
    Abstract: At present, black odorous water is an important issue in waste water management, as it seriously affects the quality of river and lake water. However, how black odorous water forms still remains largely unclear. Under the conditions of artificially simulating black and odorous water bodies, the formation conditions, generation mechanism and forming process of odorous substances-H 2 S were researched by adding different basic substances, including sulfur-containing substances, inorganic salts, and metal ions. The results showed that there must be sulfur-containing substances to induce a black bloom in 5–9 d, and that the Oxidation-Reduction Potential (ORP) should be less than −200 mv, an optimal condition for forming black odorous water. Cysteine was the primary precursor for the production of H 2 S. Furthermore, when the inorganic nitrogen salt additions were 〉 10 mg/L, the formation of H 2 S was inhibited. Finally, metal ions inhibit the degree of odor-causing in water was Cu 2+ 〉 Fe 2+ 〉 Mn 2+ . The microbial communities were also monitored during the development of the black odorous and the predominant bacteria were proteobacteria and it showed that the proteobacteria could desulfurize high-valence organic compounds containing sulfur become low-valence simple sulfides.
    Type of Medium: Online Resource
    ISSN: 1556-6560
    Language: English
    Publisher: American Scientific Publishers
    Publication Date: 2022
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  • 15
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2021
    In:  Journal of Cardiothoracic Surgery Vol. 16, No. 1 ( 2021-12)
    In: Journal of Cardiothoracic Surgery, Springer Science and Business Media LLC, Vol. 16, No. 1 ( 2021-12)
    Abstract: Intrathoracic esophageal anastomotic leakage (AL) is one of the most fatal complications after esophagectomy. In this study, we placed an additional drainage tube in the esophagus bed and evaluated its effect in early diagnosis and treatment of AL. Methods From January 2010 to August 2020, 312 patients with esophageal or cardia carcinoma underwent esophageal resection with intrathoracic esophagogastric anastomosis. A total of 138 patients with only one pleural drainage tube were divided into the “Control Group” and 174 patients with a pleural drainage tube and an additional mediastinal drainage tube (MDT) were divided into the “Tube Group”. For all patients, the incidence of postoperative AL, the time to diagnosis, time to recovery, and patient outcome were analyzed. Results No significant differences were observed in the AL rate ( P  = 0.837) and postoperative pain between two groups. However, in the Tube Group, almost all the patients were diagnosed prior to the appearance of hyperpyrexia, which was considered as the earliest and most common symptom after AL. In the Tube Group, a significant decrease was observed in the incidence of incurable fistula, which required re-operation or variable treatments under gastroscopy when compared to the Control Group ( P  = 0.032). Finally, patients in the Tube Group showed reduced post AL hospital day ( P  = 0.015) and a lower mortality, however, when compared to the Control Group, no significant differences were observed ( P  = 0.188). Conclusions Placement of an MDT does not prevent AL, but it is an effective approach for earlier diagnosis of AL and facilitates fistula healing and patient recovery.
    Type of Medium: Online Resource
    ISSN: 1749-8090
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2021
    detail.hit.zdb_id: 2227224-0
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  • 16
    Online Resource
    Online Resource
    American Chemical Society (ACS) ; 2021
    In:  ACS Applied Materials & Interfaces Vol. 13, No. 14 ( 2021-04-14), p. 16355-16363
    In: ACS Applied Materials & Interfaces, American Chemical Society (ACS), Vol. 13, No. 14 ( 2021-04-14), p. 16355-16363
    Type of Medium: Online Resource
    ISSN: 1944-8244 , 1944-8252
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2021
    detail.hit.zdb_id: 2467494-1
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  • 17
    Online Resource
    Online Resource
    Termedia Sp. z.o.o. ; 2021
    In:  Videosurgery and Other Miniinvasive Techniques Vol. 16, No. 1 ( 2021), p. 273-281
    In: Videosurgery and Other Miniinvasive Techniques, Termedia Sp. z.o.o., Vol. 16, No. 1 ( 2021), p. 273-281
    Type of Medium: Online Resource
    ISSN: 1895-4588
    Language: Unknown
    Publisher: Termedia Sp. z.o.o.
    Publication Date: 2021
    detail.hit.zdb_id: 2596147-0
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  • 18
    In: Journal of Environmental Chemical Engineering, Elsevier BV, Vol. 11, No. 3 ( 2023-06), p. 110070-
    Type of Medium: Online Resource
    ISSN: 2213-3437
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 2710047-9
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  • 19
    In: Materials, MDPI AG, Vol. 13, No. 22 ( 2020-11-10), p. 5062-
    Abstract: This review summarizes the preparation methods of cellulose nanofibrils (CNFs) and the progress in the research pertaining to their surface modification. Moreover, the preparation and surface modification of nanocellulose were comprehensively introduced based on the existing literature. The review focuses on the mechanical treatment of cellulose, the surface modification of fibrillated fibers during pretreatment, the surface modification of nanocellulose and the modification of CNFs and their functional application. In the past five years, research on cellulose nanofibrils has progressed with developments in nanomaterials research technology. The number of papers on nanocellulose alone has increased by six times. However, owing to its high energy consumption, high cost and challenging industrial production, the applications of nanocellulose remain limited. In addition, although nanofibrils exhibit strong biocompatibility and barrier and mechanical properties, their high hydrophilicity limits their practical application. Current research on cellulose nanofibrils has mainly focused on the industrial production of CNFs, their pretreatment and functional modification and their compatibility with other biomass materials. In the future, with the rapid development of modern science and technology, the demand for biodegradable biomass materials will continue to increase. Furthermore, research on bio-based nanomaterials is expected to advance in the direction of functionalization and popularization.
    Type of Medium: Online Resource
    ISSN: 1996-1944
    Language: English
    Publisher: MDPI AG
    Publication Date: 2020
    detail.hit.zdb_id: 2487261-1
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  • 20
    In: New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 45, No. 37 ( 2021), p. 17483-17492
    Abstract: Harmful algae blooms represent a serious problem for natural waters around the world, and have a great impact on water quality, local economies and human health. To tackle the above challenge, we successfully prepare fluorine-doped titanium oxide (F-TiO 2 ) nanocomposites by a hydrothermal method as a photocatalytic algaecide. The synthesized nanocomposites were characterized by SEM (scanning electron microscope), EDS (energy dispersive spectrometer), XPS (X-ray photoelectron spectroscopy), XRD (X-ray diffraction), and EPR (electron paramagnetic resonance). The results of this study indicated that the crystallinity of anatase in F-TiO 2 is enhanced significantly upon fluorine doping. F-TiO 2 with a dosage of 0.75 g L −1 exhibited the best anti-algae activity, and the removal rate of algae cells is above 97.5% under solar irradiation for 8 h. When the potential of hydrogen (pH) value was 10.0, F-TiO 2 had a good treatment effect. When the pH value was lower than 6.25, it was beneficial to the decline of the chlorophyll a content. The inactivation process of F-TiO 2 inhibiting Microcystis aeruginosa fits well with the improved Chick–Waston model and Hom model. During the photocatalytic destruction, fluorine-doped TiO 2 oxidized the algae cell walls and membranes, simultaneously degrading the metabolic products and microcystin-LR with high efficiency. The reactive oxygen species contribution of the F-TiO 2 photocatalyst in the process of photocatalytic algae removal is h + 〉 ˙OH 〉 ˙O 2 − . Compared with traditional algae removal methods, photocatalytic algaecides can rapidly prevent secondary pollution while improving efficiency, and using solar light as an energy source is more suitable for in situ remediation of natural water bodies.
    Type of Medium: Online Resource
    ISSN: 1144-0546 , 1369-9261
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2021
    detail.hit.zdb_id: 1472933-7
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