Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches

doi:10.1080/09593330.2024.2366449

IOCAS-IR

	Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches
	Wang, Huiteng 1; Luo, Hui 1,2; Yang, Jing 1; Qin, Teng 1; Yang, Mingyu 1; Chen, Limin 1; Liu, Meng 1; He, Bao-Jie 3,4,5,6
	2024-06-14
发表期刊	ENVIRONMENTAL TECHNOLOGY
ISSN	0959-3330
页码	17
通讯作者	Luo, Hui(water@njfu.edu.cn)
摘要	Ecological ditches serve as one of the important measures for the concentrated infiltration of stormwater in the construction process of sponge cities. Prolonged concentrated infiltration of stormwater can lead to the accumulation of pollutants and pollution risks in the substrate of ecological ditches. In this study, two different substrate ecological ditches were constructed, namely, a combined substrate ecological ditch with zeolite + ceramsite (EA), and a biological substrate ecological ditch (EB). The accumulation characteristics of pollutants and microbial mechanisms in the ecological ditches were evaluated by simulating the cumulative rainfall test for three years. Results showed that there was serious total nitrogen (TN) contamination in both EA and EB substrates, with mean values of 718.6 and 802.7 mg/kg, respectively. The average contents of potentially toxic elements (Cu, Pb, and Zn) in EA and EB substrates were higher than the background values of soil elements in China, and Cu posed considerable ecological risks to the environment. Proteobacteria was the dominant phylum and accounted for 32.85-41.33% in two ditches; the total number of denitrifying functional bacterial genera in the EB increased by 1.53% than EA, which proved that the biological substrate was more favourable for the growth of denitrifying microorganisms. The accumulation characteristics of pollutants and microbial mechanisms in the ecological ditches with different substrates above provide a reference for extending the service life of ecological ditch facilities.
关键词	Cumulative characterisation ecological ditches potentially toxic elements risk assessment microbial communities
DOI	10.1080/09593330.2024.2366449
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China10.13039/501100001809
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001250734700001
出版者	TAYLOR & FRANCIS LTD
WOS关键词	HEAVY-METAL ; PHOSPHORUS ; COMMUNITY ; REMOVAL
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186540
专题	中国科学院海洋研究所
通讯作者	Luo, Hui
作者单位	1.Jiangsu Ocean Univ, Sch Civil & Ocean Engn, Lianyungang, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 3.Univ New South Wales, Fac Built Environm, Sydney, Australia 4.Chongqing Univ, Ctr Climate Resilient & Low Carbon Cities, Sch Architecture & Urban Planning, Chongqing, Peoples R China 5.Chongqing Univ, Minist Educ, Key Lab New Technol Construct Cities Mt Area, Chongqing, Peoples R China 6.Hiroshima Univ, Network Educ & Res Peace & Sustainabil NERPS, Hiroshima, Japan
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wang, Huiteng,Luo, Hui,Yang, Jing,et al. Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches[J]. ENVIRONMENTAL TECHNOLOGY,2024:17.
APA	Wang, Huiteng.,Luo, Hui.,Yang, Jing.,Qin, Teng.,Yang, Mingyu.,...&He, Bao-Jie.(2024).Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches.ENVIRONMENTAL TECHNOLOGY,17.
MLA	Wang, Huiteng,et al."Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches".ENVIRONMENTAL TECHNOLOGY (2024):17.