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  • Article
    Xiao S, Dong H, Geng Y, Francisco MJ, Pan H, Wu F.
    Environ Sci Pollut Res Int. 2020 Aug;27(24):29943-29953.
    Municipal solid waste (MSW) management and recycling has become an emerging issue in developing countries. Shanghai, the largest megacity in China, is well-known nationwide due to leading China's MSW separation and recycling. Therefore, this paper introduces the Shanghai mode for MSW management and its current situation to enrich existing MSW management studies. Results show that the total generation volume of MSW and amount of MSW generation per capita were 9.00 million tons and 372.16 kg in 2017, increased approximately eight-fold and four-fold compared with the data in 1978, respectively. The MSW treatment rate reached 100% since 2014, with incineration rate increased to 48.56% in 2017. The cost of MSW management after implementing MSW sorting regulation is increased to 985 CNY/ton, including 390 CNY/ton of MSW sorting cost. Then three key features and innovative MSW management modes, namely, mandatory MSW sorting legislation, Green Account program, and the Combined Network program are introduced. Meanwhile, two main challenges are urgent to be responded, including inadequate collecting vehicles and limited wet waste treatment capacity. Finally, policy recommendations on strengthening MSW recycling process, constructing complete terminal treatment industry, and making systematic policies were provided to respond existing challenges.
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  • Article
    Habbadi K, Meyer T, Vial L, Gaillard V, Benkirane R, Benbouazza A, Kerzaon I, Achbani EH, Lavire C.
    Environ Sci Pollut Res Int. 2018 Oct;25(30):29943-29952.
    Allorhizobium (Agrobacterium) vitis is a host-specific pathogenic bacterium that causes grapevine crown gall disease, affecting vine growth and production worldwide. The antibacterial activities of different aromatic plant essential oils were tested in vitro and in planta against A. vitis. Among the essential oils tested, those of Origanum compactum and Thymus vulgaris showed the most significant in vitro antibacterial activities, with a MIC of 0.156 and 0.312 mg/mL, respectively. A synergistic effect of these two essential oils (1:1) was observed and confirmed by the checkerboard test. Carvacrol (61.8%) and thymol (47.8%) are, respectively, the major compounds in the essential oils of O. compactum and T. vulgaris and they have been shown to be largely responsible for the antibacterial activities of their corresponding essential oils. Results obtained in vitro were reinforced by an in planta pathogenicity test. A mixture of O. compactum and T. vulgaris essential oils (1:1), inoculated into the injured stem of a tomato plant and a grapevine at 0.312 mg/mL as a preventive treatment, reduced both the number of plants developing gall symptoms and the size of the tumors.
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