Effects of Microplastics on Nitrogen Removal Performance of Enriched Anammox Cultures
學年 114
學期 1
出版（發表）日期 2026-01-30
作品名稱 Effects of Microplastics on Nitrogen Removal Performance of Enriched Anammox Cultures
作品名稱（其他語言）
著者 Yanisa Khotchachain; Tharinee Saleepochn; Pongsak Noophan; Chi-Wang Li
單位
出版者
著錄名稱、卷期、頁數 Water 18(3), p. 344
摘要 Microplastics (MPs) and their chemical leachates are increasingly detected in landfill leachate, raising concerns about impacts on biological nitrogen removal. This study examined the effects of low-density polyethylene (LDPE) and polypropylene (PP) MPs on anaerobic ammonium oxidation (anammox) performance using suspended, attached, and granular biomass. The results showed that exposure to LDPE and PP MPs did not significantly inhibit specific anammox activity (SAA) across all anammox biomass types. However, the leachates of LDPE and PP MPs under relevant EU migration testing guidelines could cause transient inhibition. Non-targeted GC-MS analysis identified 31 and 37 leachable compounds from LDPE and PP, including the toxic plasticizer dibutyl phthalate (DBP). DBP caused concentration-dependent but transient inhibition of nitrogen removal in granular biomass, peaking at 29.4% after 5 h at 100 mg/L, with full recovery within 24 h. Higher DBP retention was observed in granular and attached growth biomass compared to suspended growth biomass. Crucially, complex biomass structures buffer these effects, emphasizing the need to assess both physical and chemical MP aspects in wastewater systems. Consequently, attached growth and granular systems are recommended over suspended growth configurations for leachate treatment, owing to their superior resilience to toxic shock and enhanced retention capabilities.
關鍵字 microplastics (MPs); dibutyl phthalate (DBP); anaerobic ammonium oxidation (anammox); leachate toxicity
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版
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