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DOI	10.1016/j.scitotenv.2019.133911
	Forecasting concentrations of organic chemicals in the vadose zone caused by spills of hydraulic fracturing wastewater
	Ma, Lanting 1; Hurtado, Antonio 2; Eguilior, Sonsoles 2; Llamas Borrajo, Juan F.1
通讯作者	Eguilior, Sonsoles
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	696
英文摘要	The return water from hydraulic fracturing operations is characterised by high concentrations of salts and toxic organic compounds. This water is stored on the surface in storage tanks and/or ponds. Wastewater spills caused by inappropriate storage can lead to the contamination of various environmental compartments, thus posing a risk to human health. Such risk can be determined by estimating the concentrations of the substances in the storage system and the behaviour of the same in function of the characteristics of the environment in which they are released. To this end, here we addressed the evolution of the concentrations of pollutants in a tank used to store wastewater from hydraulic fracturing operations. To do this, we estimated both the volume of flowback and the concentrations of the pollutants found in these waters. We then examined the dynamic behaviour of spill-derived compounds in the various environmental compartments in function of the conditions of the medium (humid, semi-arid, and arid). This approach allowed us to rank the hazard posed by the chemical compounds in question, as well as to determine those parameters associated with both the compounds and external natural conditions that contribute to environmental risk. Our results shed greater light on the mechanism by which external environmental variables (especially recharge rate) influence the migration of organic compounds in the vadose zone, and contribute to the prediction of their concentrations. Also, by estimating the time that chemicals remain in contaminated areas, we identify the phases of contamination that pose the greatest risk to human health. In summary, the approach used herein allows the ranking of compounds on the basis of risk to human health and can thus facilitate the design of pollutant management strategies. Of note, our ranked list highlights the relevance of benzene. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Hydraulic fracturing Spill Organic compounds Vadose zone Concentration evolution
类型	Article
语种	英语
国家	Spain
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000498798600054
WOS关键词	RISK-ASSESSMENT ; FLOWBACK ; MODEL ; SOIL ; AIR
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311764
作者单位	1.Escuela Tecn Super Ingenieros Minas & Energia Mad, Calle Rios Rosas 21, Madrid 28003, Spain; 2.Ctr Invest Energet Medioambientales & Tecnol, Avda Complutense 40,Edif 20, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Ma, Lanting,Hurtado, Antonio,Eguilior, Sonsoles,et al. Forecasting concentrations of organic chemicals in the vadose zone caused by spills of hydraulic fracturing wastewater[J],2019,696.
APA	Ma, Lanting,Hurtado, Antonio,Eguilior, Sonsoles,&Llamas Borrajo, Juan F..(2019).Forecasting concentrations of organic chemicals in the vadose zone caused by spills of hydraulic fracturing wastewater.SCIENCE OF THE TOTAL ENVIRONMENT,696.
MLA	Ma, Lanting,et al."Forecasting concentrations of organic chemicals in the vadose zone caused by spills of hydraulic fracturing wastewater".SCIENCE OF THE TOTAL ENVIRONMENT 696(2019).