Passivation mechanism of Cu and Zn with the introduction of composite passivators during anaerobic digestion of pig manure

•Degradation rate of composite passivator added to organic matter reached 30.01%.•Composite passivator promoted the formation of humus.•Binding characteristics of Cu and Zn with humus were changed after digestion.•Passivators and humus played different roles in passivation of Cu and Zn. Heavy metals...

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Veröffentlicht in:	Bioresource technology 2023-02, Vol.369, p.128360-128360, Article 128360
Hauptverfasser:	Liu, Cunlan, Zhuang, Jie, Xue, Jinhui, Peng, Mingguo, Zhang, Wenyi, Mao, Linqiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Anaerobic digestion Anaerobiosis Animals Biofuels Heavy metal form Humic Substances Humus Manure Metals, Heavy - chemistry Passivator Pig manure Swine Zinc
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