Uptake of nutrients and heavy metals in struvite recovered from a mixed wastewater of human urine and municipal sewage by two vegetables in calcareous soil

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Uptake of nutrients and heavy metals in struvite recovered from a mixed wastewater of human urine and municipal sewage by two vegetables in calcareous soil
	Wen, Guoqi ; Huang, Lijuan ; Zhang, Xiangru ; Hu, Zhengyi
刊名	ENVIRONMENTAL TECHNOLOGY & INNOVATION
	2019-08-01
卷号	15 页码:-
关键词	Struvite Phosphorus Nutrients Heavy metals Vegetable Calcareous soil
ISSN号	2352-1864
英文摘要	Struvite (MAP) recovered from a mixed wastewater of human urine and municipal sewage through a novel two-step precipitation method was well developed, but its nutrient availability and pollutant transmission to plants have not been investigated. The objective of this study is to explore the feasibility of using MAP as a phosphorus (P) fertilizer in cultivating vegetables by comparing with single superphosphate (SSP). A greenhouse pot experiment was conducted with two P rates (0 vs 0.4 g P2O5/pot) and two vegetables of cabbage and lettuce were planted in the calcareous soil. The vegetable biomass and chemical concentrations of nitrogen (N), P, and metal elements in the soil and vegetable tissues were determined. Results showed that MAP and SSP supply greatly increased the cabbage biomass compared with the unfertilized control because the supply of SSP/MAP enhanced the P, Mg, and K accumulation in the cabbage shoots. However, P fertilization decreased the lettuce biomass, especially MAP application, because the high soil pH and external P fertilization together hampered Zn uptake by the lettuce. The heavy metal concentrations in vegetables supplied by MAP were lower than the maximal contaminant levels for Chinese food safety national standard (GB2762-2017). Based on these findings, it was concluded that MAP is a promising P fertilizer for cultivating cabbage in the tested soil. However, the vegetable should be carefully considered in further studies when MAP is used as a P fertilizer in calcareous soils. (C) 2019 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42680]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Univ Laval, Dept Soils & Agrifood Engn, Quebec City, PQ G1V 0A6, Canada 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Wen, Guoqi,Huang, Lijuan,Zhang, Xiangru,et al. Uptake of nutrients and heavy metals in struvite recovered from a mixed wastewater of human urine and municipal sewage by two vegetables in calcareous soil[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2019,15:-.
APA	Wen, Guoqi,Huang, Lijuan,Zhang, Xiangru,&Hu, Zhengyi.(2019).Uptake of nutrients and heavy metals in struvite recovered from a mixed wastewater of human urine and municipal sewage by two vegetables in calcareous soil.ENVIRONMENTAL TECHNOLOGY & INNOVATION,15,-.
MLA	Wen, Guoqi,et al."Uptake of nutrients and heavy metals in struvite recovered from a mixed wastewater of human urine and municipal sewage by two vegetables in calcareous soil".ENVIRONMENTAL TECHNOLOGY & INNOVATION 15(2019):-.