Drinking water treatment residue structures nitrogen-cycling microbiomes with consequences for high nitrogen conversion

	Drinking water treatment residue structures nitrogen-cycling microbiomes with consequences for high nitrogen conversion
	Wang, Changhui; Tian, Linqi; Wang, Zhanling; Li, Biao; Yan, Zaisheng; Bai, Leilei; Xu, Huacheng; Jiang, Helong; Yuan, Nannan
刊名	JOURNAL OF CLEANER PRODUCTION
	2021
卷号	320
英文摘要	Drinking water treatment residue (DWTR) often exhibits favorable microbial effect on nitrogen (N) removal during recycling as phosphorus (P) adsorbent in environmental remediation. Given the relatively high concentrations of iron (Fe) in DWTR and the importance of Fe-cycling microbial communities to regulate N cycles in nature, this study hypothesized that the favorable effect on N removal stemmed from the coupling of N to Fe cycle-related microbial communities in DWTR, which was then verified by microbial enrichment tests using metagenome technology and high-throughput sequencing analysis. The results suggested that DWTR seeded by activated sludge (0.05% in dry weight) acquired a strong and steady ability to convert different forms of N. After approximately 90 d of enrichment, the complete microbial N cycle, including 41 functional genes, was characterized in DWTR. The identified functional microbial communities showed relatively high similarity in DWTR enriched at different N levels, although the communities tended to be affected by N loading and initial N concentrations. Importantly, pairwise comparisons showed the close relations between N-cycling pathways (except N fixation) and various Fe-cycling genera, especially Ferrovum and Geobacter, which demonstrated the comprehensive functions of Fe and N cycling-related microbial communities. The P adsorption capability of DWTR was also maintained after enrichment. Overall, DWTR could be feasibly used to enhance microbial functions for simultaneous N and P pollution control.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20366]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Wang, Changhui,Tian, Linqi,Wang, Zhanling,et al. Drinking water treatment residue structures nitrogen-cycling microbiomes with consequences for high nitrogen conversion[J]. JOURNAL OF CLEANER PRODUCTION,2021,320.
APA	Wang, Changhui.,Tian, Linqi.,Wang, Zhanling.,Li, Biao.,Yan, Zaisheng.,...&Yuan, Nannan.(2021).Drinking water treatment residue structures nitrogen-cycling microbiomes with consequences for high nitrogen conversion.JOURNAL OF CLEANER PRODUCTION,320.
MLA	Wang, Changhui,et al."Drinking water treatment residue structures nitrogen-cycling microbiomes with consequences for high nitrogen conversion".JOURNAL OF CLEANER PRODUCTION 320(2021).