气候变化领域集成服务门户(CCPortal): Enhanced solar evaporation using a photo-thermal umbrella for wastewater management

CCPortal

DOI	10.1038/s41893-019-0445-5
	Enhanced solar evaporation using a photo-thermal umbrella for wastewater management
	Menon A.K.; Haechler I.; Kaur S.; Lubner S.; Prasher R.S.
发表日期	2020
ISSN	2398-9629
起始页码	144
结束页码	151
卷号	3 期号:2
英文摘要	Zero-liquid discharge is an emerging wastewater management strategy that maximizes water recovery for reuse and produces a solid waste, thereby lowering the environmental impact of wastewater disposal. Evaporation ponds harvest solar energy as heat for zero-liquid discharge, but require large land areas due to low evaporation rates. Here, we demonstrate a passive and non-contact approach to enhance evaporation by more than 100% using a photo-thermal device that converts sunlight into mid-infrared radiation where water is strongly absorbing. As a result, heat is localized at the water’s surface through radiative coupling, resulting in better utilization of solar energy with a conversion efficiency of 43%. The non-contact nature of the device makes it uniquely suited to treat a wide range of wastewater without contamination, and the use of commercial materials enables a potentially low-cost and highly scalable technology for sustainable wastewater management, with the added benefit of salt recovery. © 2020, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.
语种	英语
scopus关键词	Costs; Environmental impact; Evaporation; Image enhancement; Infrared radiation; Solar energy; Wastewater reclamation; Wastewater treatment; Water conservation; Commercial materials; Evaporation rate; Mid-infrared radiation; Radiative coupling; Solar evaporation; Wastewater management; Water recovery; Zero liquid discharges; Wastewater disposal
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163356
作者单位	Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Menon A.K.,Haechler I.,Kaur S.,et al. Enhanced solar evaporation using a photo-thermal umbrella for wastewater management[J],2020,3(2).
APA	Menon A.K.,Haechler I.,Kaur S.,Lubner S.,&Prasher R.S..(2020).Enhanced solar evaporation using a photo-thermal umbrella for wastewater management.Nature Sustainability,3(2).
MLA	Menon A.K.,et al."Enhanced solar evaporation using a photo-thermal umbrella for wastewater management".Nature Sustainability 3.2(2020).