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Tire materials disturb transformations of nitrogen compounds and affect the structure of biomass in aerobic granular sludge reactors

Journal of Hazardous Materials 2023 14 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Piotr Jachimowicz, Piotr Jachimowicz, Piotr Jachimowicz, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thilo Hofmann Piotr Jachimowicz, Piotr Jachimowicz, Piotr Jachimowicz, Piotr Jachimowicz, Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Piotr Jachimowicz, Piotr Jachimowicz, Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Agnieszka Cydzik‐Kwiatkowska, Piotr Jachimowicz, Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Ruoting Peng, Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Piotr Jachimowicz, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thilo Hofmann Piotr Jachimowicz, Thilo Hofmann Thorsten Hüffer, Thorsten Hüffer, Agnieszka Cydzik‐Kwiatkowska, Thorsten Hüffer, Ruoting Peng, Ruoting Peng, Agnieszka Cydzik‐Kwiatkowska, Thorsten Hüffer, Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Thilo Hofmann Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Thilo Hofmann Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thilo Hofmann Agnieszka Cydzik‐Kwiatkowska, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann Thorsten Hüffer, Thilo Hofmann Thilo Hofmann Thilo Hofmann

Summary

Tire-derived microplastics and their chemical additives were fed into laboratory wastewater treatment reactors, where they reduced nitrogen removal efficiency and physically changed the structure of treatment granules. Importantly, aerobic granular sludge bacteria were able to biodegrade several toxic tire additives including benzothiazole, suggesting that biological treatment systems have some capacity to handle tire pollution — but only if tire material concentrations remain manageable.

Study Type Environmental

Tire materials (TMs) present a notable hazard due to their potential to release harmful chemicals and microplastics into the environment. They can infiltrate wastewater treatment plants, where their effects remain inadequately understood, raising concerns regarding their influence on treatment procedures. Thus, this study investigated the impact of TMs in wastewater (10, 25, 50 mg/L) on wastewater treatment efficiency, biomass morphology, and microbial composition in aerobic granular sludge (AGS) reactors. TM dosage negatively correlated with nitrification and denitrification efficiencies, reducing overall nitrogen removal, but did not affect the efficiency of chemical-oxygen-demand removal. The presence of TMs increased the diameter of the granules due to TM incorporation into the biomass. The most frequently leached additives from TMs were N-(1,3-dimethylbutyl)-N'-phenyl-1,4-phenylenediamine, benzothiazole (BTH), and 2-hydroxybenzothiazole. In the treated wastewater, only BTH and aniline were detected in higher concentrations, which indicates that tire additives were biodegraded by AGS. The microbial community within the AGS adapted to TMs and their chemicals, highlighting the potential for efficient degradation of tire additives by bacteria belonging to the genera Rubrivivax, Ferruginibacter, and Xanthomonas. Additionally, our research underscores AGS's ability to incorporate TMs into biomass and effectively biodegrade tire additives, offering a promising solution for addressing environmental concerns related to TMs.

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