Responses of soil fertility and microbiomes of atrazine contaminated soil to remediation by hydrochar and persulfate

Autor:	Gang Xue, Liangliang Zhang, Xinyun Fan, Kaijie Luo, Shaopeng Guo, Hong Chen, Xiang Li, Qiwei Jian
Rok vydání:	2022
Předmět:	Soil Environmental Engineering Bacteria Health Toxicology and Mutagenesis Microbiota Environmental Chemistry Soil Pollutants Atrazine Pollution Waste Management and Disposal Soil Microbiology
Zdroj:	Journal of hazardous materials. 435
ISSN:	1873-3336
Popis:	Peroxydisulfate (PDS) is widely used in field-scale remediation of organically polluted soil, yet PDS is detrimental to the soil microbiome. In this work, sludge-derived hydrochar was used to alleviate the oxidative damage of PDS to the soil ecosystem and simultaneously improve atrazine (ATZ) degradation. Response surfaces showed that ATZ degradation was enhanced with an increased dosage of PDS (regression slope of 24.09) and hydrochar (regression slope of 4.19). In contrast, bacterial abundance was negatively related to PDS dosage but positively to hydrochar dosage. At the optimum dosage of PDS (2.21% dry weight of soil) and hydrochar (5% dry weight of soil), ATZ degradation reached 95.31%, and bacterial abundance recovered to 7.72 log gene copy number g
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24933fd3b7f8daf2a6a69bee74b50c2a https://pubmed.ncbi.nlm.nih.gov/35500339 Zobrazit plný text záznamu Full Text from ScienceDirect