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\bibitem{Chen_etal2018} {\textquotedblleft}\textit{Understanding the mechanisms of how poly aluminium chloride inhibits short-chain fatty acids production from anaerobic fermentation of waste activated sludge}{\textquotedblright}. Chen Y, Wu Y, Wang D, Li H, Wang Q, Liu Y, Peng L, Yang Q, Li X, Zeng G, Chen Y, Chemical engineering journal \textbf{334}, 1351 (2018).   http://doi.org/10.1016/J.CEJ.2017.11.064

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