The sequential dewatering and drying treatment enhanced the potential favorable effect of microbial communities in drinking water treatment residue for environmental recycling

	The sequential dewatering and drying treatment enhanced the potential favorable effect of microbial communities in drinking water treatment residue for environmental recycling
	Wang, Changhui; Wei, Zhao; Liu, Rui; Bai, Leilei; Jiang, Helong; Yuan, Nannan
刊名	CHEMOSPHERE
	2021
卷号	262
英文摘要	The beneficial recycling of drinking water treatment residue (DWTR) for environmental remediation has received increasingly interests; whereas, the reported potential effect of microbial communities in different DWTR was ambiguous, which was unfavorable for the beneficial recycling. This study hypothesized that the varied treatment to DWTR in different waterworks induced the ambiguous effect; accordingly, responses of microbial communities in DWTR to the sequential dewatering and drying treatment were determined based on samples from three waterworks, in combination with 180d incubation tests. The results showed that the microbial communities varied remarkably in different DWTR before being dewatered (DWTS). However, after dewatering, the increased microbial diversities were observed, and the microbial communities exhibited higher similarities among the dewatered DWTR from different waterworks; furthermore, the dewatered DWTR with subsequent drying treatment enriched more bacteria genus with potential environmental functions after incubation tests. The variations of microbial communities were closely related to DWTR properties, such as pH, organic matter, metals, P, and water extractable nutrients. Further analysis indicated that with maintaining high adsorption capability of DWTR, the dewatering treatment tended to retain specific microbial communities that may be induced by the applied similar techniques in different waterworks; the accumulated nutriments due to drying treatment and the stable DWTR pH enhanced the potential functional bacteria enrichment. Overall, the dewatering and drying treatment led to microbial communities with generality in different DWTR and increased the potential favorable microbial effect, promoting DWTR recycling in environmental remediation. (C) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20700]
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,Wei, Zhao,Liu, Rui,et al. The sequential dewatering and drying treatment enhanced the potential favorable effect of microbial communities in drinking water treatment residue for environmental recycling[J]. CHEMOSPHERE,2021,262.
APA	Wang, Changhui,Wei, Zhao,Liu, Rui,Bai, Leilei,Jiang, Helong,&Yuan, Nannan.(2021).The sequential dewatering and drying treatment enhanced the potential favorable effect of microbial communities in drinking water treatment residue for environmental recycling.CHEMOSPHERE,262.
MLA	Wang, Changhui,et al."The sequential dewatering and drying treatment enhanced the potential favorable effect of microbial communities in drinking water treatment residue for environmental recycling".CHEMOSPHERE 262(2021).