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  1. Article ; Online: Control of cyanobacterial bloom and purification of bloom-laden water by sequential electro-oxidation and electro-oxidation-coagulation.

    Zhou, Yingping / Peng, Huijun / Jiang, Lijuan / Wang, Xiaolin / Tang, Yuqiong / Xiao, Lin

    Journal of hazardous materials

    2023  Volume 462, Page(s) 132729

    Abstract: The outbreaks of cyanobacterial blooms have caused severe threat to aquatic ecosystem and public health. In this work, electrochemical technology with ... ...

    Abstract The outbreaks of cyanobacterial blooms have caused severe threat to aquatic ecosystem and public health. In this work, electrochemical technology with RuO
    MeSH term(s) Ecosystem ; Cyanobacteria ; Nitrification ; Nitrogen ; Phosphorus ; Water Purification/methods ; Eutrophication
    Chemical Substances Nitrogen (N762921K75) ; Phosphorus (27YLU75U4W)
    Language English
    Publishing date 2023-10-11
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.132729
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: The influence of microplastics for the transportation of E. coli using column model

    Gao, Manqi / Peng, Huijun / Xiao, Lin

    Science of the total environment. 2021 Sept. 10, v. 786

    2021  

    Abstract: Microplastics (MPs) are widely present in soils and can influence the transport of bacteria in complicated manners, which might affect the safety of water resources and public health. In this study, the effects of MPs from one classic plastic ... ...

    Abstract Microplastics (MPs) are widely present in soils and can influence the transport of bacteria in complicated manners, which might affect the safety of water resources and public health. In this study, the effects of MPs from one classic plastic polyethylene (PE) and one biodegradable plastic poly-lactic acid (PLA) on the transport behaviors of bacteria were determined. The transportation of E. coli in pure quartz sands and quartz sands amended with PE or PLA MPs of different concentration (10% and 20%, λ = 0.1 and 0.2) were compared at different ionic strength (IS). The transport behaviors of bacteria were then interpreted by thermodynamics, extended Derjaguin–Landau–Verwey–Overbeek (xDLVO) theory and two-site kinetic retention model. Elevating MPs concentration or background solution IS would discourage bacterial migration in all cases. The presence of 10% MPs at low IS increased the bacterial transport and the breakthrough curves (BTCs) changed from “blocking” to symmetrical profile may due to the absorption of MPs on quartz sands and subsequent deposition site competition, as well as the size exclusion caused by MPs. Whereas, with λ = 0.2, both MPs inhibited the transport of bacteria may due to the couple effect of physical entrapment (straining) and surface roughness of MPs. The bacterial transport rate declined to about 60% in presence of 20% PLA MP, regardless of the ionic strength. Two-site kinetic retention modelling results showed that the retention sites increased with MPs amendment, which demonstrated that MPs in the transport medium could change the property of the medium, alter the deposition and transport behavior of bacteria. Our findings allowed for better understanding of the influence of MPs on bacterial transport and thus to a better assessment of the potential risks of MPs.
    Keywords Escherichia coli ; absorption ; biodegradability ; environment ; ionic strength ; microplastics ; models ; polyethylene ; public health ; quartz ; surface roughness ; thermodynamics ; transportation
    Language English
    Dates of publication 2021-0910
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.147487
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 74/341: Show issues

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  3. Article: [Removal of Nitrogen and Phosphorus from Water by Biomass Carbon of Aquatic Plants].

    Liu, Shu-Lei / Peng, Hui-Jun / Yang, Jia-Yi / Xiao, Lin

    Huan jing ke xue= Huanjing kexue

    2019  Volume 40, Issue 11, Page(s) 4980–4986

    Abstract: In the bioremediation of eutrophic water, a large number of aquatic plants will be produced. How to continue the reasonable disposition is the question that needs to be solved. In this paper, biomass carbon was prepared from aquatic plants, and the ... ...

    Abstract In the bioremediation of eutrophic water, a large number of aquatic plants will be produced. How to continue the reasonable disposition is the question that needs to be solved. In this paper, biomass carbon was prepared from aquatic plants, and the adsorption capacity of the biomass carbon on nitrogen and phosphorus in water was improved by magnesium modification. The characterization results of material properties showed that magnesium modification not only formed nanometer MgO sheets on the surface of biomass carbon to increase the specific surface area, but also introduced hydroxyl functional groups to promote the adsorption of ammonium nitrogen. The adsorption processes of modified biomass carbon on nitrates and ammonium nitrogen belonged to multi-layer adsorption, and the adsorption isotherms conformed to the Freundlich model. The adsorption mechanism of modified biomass carbon changed from single layer adsorption to multi-layer diffusion. The maximum adsorption capacity of the modified biomass carbon on nitrate nitrogen, ammonium nitrogen, and phosphorus were 5.66, 62.53, and 90.92 mg·g
    MeSH term(s) Adsorption ; Biomass ; Carbon ; Nitrogen ; Phosphorus ; Plants ; Water ; Water Pollutants, Chemical
    Chemical Substances Water Pollutants, Chemical ; Water (059QF0KO0R) ; Phosphorus (27YLU75U4W) ; Carbon (7440-44-0) ; Nitrogen (N762921K75)
    Language Chinese
    Publishing date 2019-12-19
    Publishing country China
    Document type Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    DOI 10.13227/j.hjkx.201905038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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