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  1. Article ; Online: Cadmium-Induced Physiological Responses, Biosorption and Bioaccumulation in

    Xu, Pingping / Tu, Xiaojie / An, Zhengda / Mi, Wujuan / Wan, Dong / Bi, Yonghong / Song, Gaofei

    Toxics

    2024  Volume 12, Issue 4

    Abstract: Cadmium ion ( ... ...

    Abstract Cadmium ion (Cd
    Language English
    Publishing date 2024-03-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2733883-6
    ISSN 2305-6304 ; 2305-6304
    ISSN (online) 2305-6304
    ISSN 2305-6304
    DOI 10.3390/toxics12040262
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Molecular complexation properties of Cd

    Tu, Xiaojie / Xu, Pingping / Zhu, Yuxuan / Mi, Wujuan / Bi, Yonghong

    Ecotoxicology and environmental safety

    2023  Volume 263, Page(s) 115378

    Abstract: A detailed understanding the metals binding with algal organic matter (AOM) is essential to gain a deeper insight into the toxicity and migration of metals in algae cell. However, the molecular complexation mechanism of the metals binding with AOM ... ...

    Abstract A detailed understanding the metals binding with algal organic matter (AOM) is essential to gain a deeper insight into the toxicity and migration of metals in algae cell. However, the molecular complexation mechanism of the metals binding with AOM remains unclear. In this study, cadmium ion (Cd
    MeSH term(s) Cadmium/toxicity ; Scenedesmus ; Tryptophan ; Chlorophyceae ; Tyrosine
    Chemical Substances Cadmium (00BH33GNGH) ; Tryptophan (8DUH1N11BX) ; Tyrosine (42HK56048U)
    Language English
    Publishing date 2023-08-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2023.115378
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1418: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  3. Article ; Online: Insights into the Enhanced Photogeneration of Hydroxyl Radicals from Chlorinated Dissolved Organic Matter.

    Wan, Dong / Song, Gaofei / Mi, Wujuan / Tu, Xiaojie / Zhao, Yafei / Bi, Yonghong

    Environmental science & technology

    2023  Volume 58, Issue 1, Page(s) 805–815

    Abstract: Free available chlorine has been and is being applied in global water treatment and readily reacts with dissolved organic matter (DOM) in aquatic environments, leading to the formation of chlorinated products. Chlorination enhances the photoreactivity of ...

    Abstract Free available chlorine has been and is being applied in global water treatment and readily reacts with dissolved organic matter (DOM) in aquatic environments, leading to the formation of chlorinated products. Chlorination enhances the photoreactivity of DOM, but the influence of chlorinated compounds on the photogeneration of hydroxyl radicals (
    MeSH term(s) Hydroxyl Radical/analysis ; Hydroxyl Radical/chemistry ; Dissolved Organic Matter ; Photolysis ; Oxidation-Reduction ; Carboxylic Acids ; Water Pollutants, Chemical/analysis
    Chemical Substances Hydroxyl Radical (3352-57-6) ; Dissolved Organic Matter ; Carboxylic Acids ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-12-29
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.3c08257
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  4. Article: Addition of humic acid accelerates the growth of Euglena pisciformis AEW501 and the accumulation of lipids

    Fan, Panpan / Xu, Pingping / Zhu, Yuxuan / Tu, Xiaojie / Song, Gaofei / Zuo, Yanxia / Bi, Yonghong

    Journal of applied phycology. 2022 Feb., v. 34, no. 1

    2022  

    Abstract: As an excellent cell factory rich in polyunsaturated fatty acids, β-1,3-glucan, amino acids, and vitamins, Euglena has gained great attention with high-value products in recent years. In order to determine the optimal cultivation method of Euglena ... ...

    Abstract As an excellent cell factory rich in polyunsaturated fatty acids, β-1,3-glucan, amino acids, and vitamins, Euglena has gained great attention with high-value products in recent years. In order to determine the optimal cultivation method of Euglena pisciformis AEW501, the effects of phototrophic, mixotrophic, and heterotrophic mode on its growth were investigated, and humic acid (HA) as a growth stimulant was added into the mixotrophic culture system to verify the hypothesis that HA addition could accelerate the growth and lipid accumulation of E. pisciformis AEW501. The results indicated that biomass of mixotrophic mode (330 ± 0.05 mg L⁻¹) was 4.80 times and 7.65 times higher than that of phototrophic and heterotrophic mode, respectively, and mixotrophy was proved as the optimal trophic mode. Moreover. The maximum biomass productivity (34.63 mg L⁻¹ day⁻¹) and the highest lipid content (59.51%) were achieved in 50 mg L⁻¹ HA treatment though there was no significant difference between 10 mg L⁻¹ and 50 mg L⁻¹ treatments. While photosynthetic efficiency of photosystem II, pigments content, cell size, and yield of eicosapentaenoic (EPA) and docosahexaenoic (DHA) in 10 mg L⁻¹ HA treatment were the highest. It could be concluded that HA showed good promotion effects on growth and high-value products accumulation of E. pisciformis AEW501. This research will be helpful for the large-scale cultivation of E. pisciformis AEW501.
    Keywords Euglena ; algology ; biomass production ; culture media ; docosahexaenoic acid ; eicosapentaenoic acid ; humic acids ; lipid content
    Language English
    Dates of publication 2022-02
    Size p. 51-63.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 1002324-0
    ISSN 1573-5176 ; 0921-8971
    ISSN (online) 1573-5176
    ISSN 0921-8971
    DOI 10.1007/s10811-021-02623-9
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    In stock of ZB MED Bonn / Germany

    Z 89/703: Show issues

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  5. Article: Environmental Factors Drive Periphytic Algal Community Assembly in the Largest Long-Distance Water Diversion Channel

    Zhu, Yuxuan / Mi, Wujuan / Tu, Xiaojie / Song, Gaofei / Bi, Yonghong

    Water. 2022 Mar. 15, v. 14, no. 6

    2022  

    Abstract: Periphytic algae exist widely in different waters. However, little is known about periphytic algae in long-distance water diversion channels across watersheds. We investigated the periphytic algae and the environmental factors at twenty sampling sites in ...

    Abstract Periphytic algae exist widely in different waters. However, little is known about periphytic algae in long-distance water diversion channels across watersheds. We investigated the periphytic algae and the environmental factors at twenty sampling sites in the middle route of the South-to-North Water Diversion Project (MRP). The dominant species were Desmodesmus intermedius (Hegewald), Calothrix thermalis (Bornet & Flahault), Calothrix parietina (Bornet & Flahault) and Leptolyngbya benthonica (Anagnostidis) (dominance > 0.02) as measured in a whole year. Habitat heterogeneity in the MRP led to lower spatial heterogeneity and higher temporal heterogeneity of the periphytic algal community. Stochastic processes are the major process in periphytic community assembly. In deterministic processes, homogeneous selection had the major role in structuring the periphytic community, whereas the role of heterogeneous selection was less significant. In stochastic processes, dispersal limitations had the major role in structuring the periphytic community, whereas the role of homogenizing dispersal and drift were less significant. The variation in total nitrogen and total phosphorus promoted more stochastic processes (−1.96 < βNTI < 1.96). The variations in water temperature and water velocity promoted more heterogeneous selection (βNTI > 1.96). In integrating all of this empirical evidence, we explore the role of environmental factors in the action of ecological processes shaping thecommunity assembly of the periphytic algal community.
    Keywords Calothrix parietina ; Desmodesmus ; Leptolyngbya ; algae ; dominant species ; habitats ; spatial variation ; total nitrogen ; total phosphorus ; water ; water temperature
    Language English
    Dates of publication 2022-0315
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w14060914
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  6. Article ; Online: Simple and efficient dual-wavelength spectroscopy for the determination of organic matter in sewage sludge from wastewater treatment.

    Tu, Xiaojie / Hu, Zhanbo / Chai, Xin-Sheng / Su, Yuting

    RSC advances

    2019  Volume 9, Issue 22, Page(s) 12580–12584

    Abstract: In this study, a dual-wavelength spectroscopic method for rapid determination of organic matter in sludge was developed. The contents of the organic matter were calculated by determining the consumption of potassium dichromate ( ... ...

    Abstract In this study, a dual-wavelength spectroscopic method for rapid determination of organic matter in sludge was developed. The contents of the organic matter were calculated by determining the consumption of potassium dichromate (K
    Language English
    Publishing date 2019-04-23
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/c9ra00428a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: In-situ determination of the observed yield coefficient of aerobic activated sludge by headspace gas chromatography

    Zheng, Yukai / Hu, Zhanbo / Tu, Xiaojie / Wu, Kai / Chen, Gang / Chai, Xin-Sheng

    Journal of chromatography. 2020 Jan. 11, v. 1610

    2020  

    Abstract: This paper describes a headspace gas chromatographic (HS–GC) method for the in-situ determination of the observed yield coefficient (Yₒbₛ) of aerobic activated sludge from domestic wastewater treatment plants. It is based on the measurement of oxygen and ...

    Abstract This paper describes a headspace gas chromatographic (HS–GC) method for the in-situ determination of the observed yield coefficient (Yₒbₛ) of aerobic activated sludge from domestic wastewater treatment plants. It is based on the measurement of oxygen and carbon dioxide in samples that have been incubated in headspace vials for relatively short periods of time. The method has good precision (the relative standard deviation < 5.46%) and accuracy (the relative differences < 9.23% when compared with the data from the reference method). The new method is much simpler and more efficient than the reference methods and should greatly facilitate the testing in aerobic activated sludge related applications, such as system design, operation and management.
    Keywords activated sludge ; carbon dioxide ; gas chromatography ; headspace analysis ; oxygen ; sewage treatment ; standard deviation ; systems engineering ; wastewater treatment
    Language English
    Dates of publication 2020-0111
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 218139-3
    ISSN 0021-9673 ; 0378-4355 ; 0376-737X
    ISSN 0021-9673 ; 0378-4355 ; 0376-737X
    DOI 10.1016/j.chroma.2019.460560
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 813: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  8. Article: High-throughput determination of the organic matter content in soil and municipal sludge by headspace gas chromatography

    Tu, Xiaojie / Chai, Xin-Sheng / Chen, Gang / Hu, Zhanbo / Wang, Jie / Zhao, Ting

    Analytical methods. 2019 Dec. 5, v. 11, no. 47

    2019  

    Abstract: This paper reports on a new method for rapid determination of organic matter (OM) in soil and municipal sludge samples, based on a redox reaction (i.e., conversion of OM into CO2 by dichromate), involving the headspace gas chromatographic technique (HS- ... ...

    Abstract This paper reports on a new method for rapid determination of organic matter (OM) in soil and municipal sludge samples, based on a redox reaction (i.e., conversion of OM into CO2 by dichromate), involving the headspace gas chromatographic technique (HS-GC). For the soil samples (with a lower OM content), the sample reaction was conducted in a sealed headspace vial under the given conditions (135 °C for 20 min) and the CO2 from the reaction is directly measured by HS-GC. For the municipal sludge samples (i.e., with a higher OM content), the sample reaction was conducted in an open vial under the above conditions. Then, a portion of the reaction medium was taken and added into a sealed vial containing an excess amount of oxalic acid, followed by HS-GC measurement, from which the residual amount of potassium dichromate in the reaction medium can be determined and thus the OM content in the sample can be calculated. The results showed that the present method has good reproducibility and accuracy, with a relative standard deviation < 5% and recovery between 91.8% and 106%. Based on a headspace auto-sampler, high-throughput determination of the OM content for batch sample analysis can be realized.
    Keywords carbon dioxide ; gas chromatography ; headspace analysis ; organic matter ; oxalic acid ; potassium ; redox reactions ; sludge ; soil ; soil sampling ; standard deviation
    Language English
    Dates of publication 2019-1205
    Size p. 5963-5968.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2515210-5
    ISSN 1759-9679 ; 1759-9660
    ISSN (online) 1759-9679
    ISSN 1759-9660
    DOI 10.1039/c9ay01889a
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Simple and efficient dual-wavelength spectroscopy for the determination of organic matter in sewage sludge from wastewater treatment

    Tu, Xiaojie / Zhanbo Hu / Xin-Sheng Chai / Yuting Su

    RSC advances. 2019 Apr. 23, v. 9, no. 22

    2019  

    Abstract: In this study, a dual-wavelength spectroscopic method for rapid determination of organic matter in sludge was developed. The contents of the organic matter were calculated by determining the consumption of potassium dichromate (K₂Cr₂O₇) based on the ... ...

    Abstract In this study, a dual-wavelength spectroscopic method for rapid determination of organic matter in sludge was developed. The contents of the organic matter were calculated by determining the consumption of potassium dichromate (K₂Cr₂O₇) based on the production of trivalent chromium ions (Cr³⁺). Cr³⁺ could be determined by subtracting the absorption at 800 nm (spectral interference) from the absorption at 650 nm (only contributed by Cr³⁺). The results showed that the relative standard deviation in the test was less than 5%. The same set of samples was used and when the content of organic matter was more than 150 g kg⁻¹, the relative difference between the spectroscopic method and titration method was within 1%. Furthermore, the method does not require calibration based on the standard samples. In conclusion, the present method is simple, reliable, accurate and suitable for application in mass testing for sludge samples.
    Keywords chromium ; ions ; organic matter ; potassium ; sewage sludge ; spectroscopy ; standard deviation ; titration ; wastewater treatment
    Language English
    Dates of publication 2019-0423
    Size p. 12580-12584.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c9ra00428a
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: In-situ determination of the observed yield coefficient of aerobic activated sludge by headspace gas chromatography.

    Zheng, Yukai / Hu, Zhanbo / Tu, Xiaojie / Wu, Kai / Chen, Gang / Chai, Xin-Sheng

    Journal of chromatography. A

    2019  Volume 1610, Page(s) 460560

    Abstract: This paper describes a headspace gas chromatographic (HS-GC) method for the in-situ determination of the observed yield coefficient ( ... ...

    Abstract This paper describes a headspace gas chromatographic (HS-GC) method for the in-situ determination of the observed yield coefficient (Y
    MeSH term(s) Aerobiosis ; Calibration ; Carbon Dioxide/analysis ; Chromatography, Gas/methods ; Limit of Detection ; Oxygen/analysis ; Sewage/chemistry ; Temperature ; Time Factors ; Waste Water/analysis
    Chemical Substances Sewage ; Waste Water ; Carbon Dioxide (142M471B3J) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2019-09-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1171488-8
    ISSN 1873-3778 ; 0021-9673
    ISSN (online) 1873-3778
    ISSN 0021-9673
    DOI 10.1016/j.chroma.2019.460560
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 813: Show issues Location:
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