干旱区生态环境知识资源中心(Arid): Solar-Driven interfacial evaporation for decentralized direct potable reuse of domestic wastewater

Arid

DOI	10.1016/j.cej.2023.143582
	Solar-Driven interfacial evaporation for decentralized direct potable reuse of domestic wastewater
	Chao, Weixiang; Pi, Shanshan; Yang, Yang; Li, Zhida; Yu, Yongjie; Yang, Ying; Yang, Ruijie; Li, Haiyan; Lu, Lu
通讯作者	Lu, L
来源期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
EISSN	1873-3212
出版年	2023
卷号	468
英文摘要	Water scarcity in arid areas requires the exploitation of unconventional water resources like domestic wastewater (DWW). Although direct potable reuse (DPR) of DWW as an alleviation is mature based on membrane and advanced oxidation, it is energy- and carbon-intensive with requirement of well-developed infrastructure. Recently, emerging solar-driven interfacial evaporation for sustainable freshwater reclamation has been practiced on seawater desalination but its feasibility of DPR from DWW has not been investigated. Herein, a solar-absorber of b-TiO2-DW was constructed by coating delignified wood (DW) with black reduced TiO2 (b-TiO2) to conduct DPR from DWW in a solar-thermal system, wherein b-TiO2-DW with anisotropic thermal conductivities and enhanced sunlight absorption facilitates DWW evaporation at air-water interfaces with a DRP rate of similar to 1.25 kg center dot h(-1)center dot m(-2)-absorber in similar to 97.5 % photothermal conversion efficiency and similar to 90 % evaporation efficiency under simulated illumination (100 mW center dot cm(-2)) in the lab. For real solar illumination outdoors (0.8-87.2 mW center dot cm(-2), 10 h), DRP rate reaches similar to 7.65 kg center dot day(-1)center dot m(-2) that can satisfy the demand of daily drinking water for 2-3 persons. The moderate temperature at evaporation interfaces, physical adsorption, and reactive oxygen species generated by b-TiO2-DW synergistically inhibit conventional and emerging (in)volatile contaminants into PRW and prevent biofouling on absorbers. A life cycle assessment (10-years life-cycle amortization) shows that solar-thermal system has lower cost ($ similar to 0.027 kg(-1) PRW) and carbon footprint (similar to 0.085 kg CO2-eq center dot kg(-1) PRW) than current technologies ($ 0.25-1.14 kg(-1) PRW and 0.67-1.17 kg CO2-eq center dot kg(-1) PRW). Although DPR efficiency of solar-thermal system needs further enhancement, its flexibility indicates a promising scenario for decentralized DPR in undeveloped areas with laggard infrastructures.
英文关键词	Direct potable reuse Potable water Domestic wastewater Decentralization Solar-thermal interface Water-energy nexus
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001006002000001
WOS关键词	CHALLENGES ; REMOVAL
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395732
推荐引用方式 GB/T 7714	Chao, Weixiang,Pi, Shanshan,Yang, Yang,et al. Solar-Driven interfacial evaporation for decentralized direct potable reuse of domestic wastewater[J],2023,468.
APA	Chao, Weixiang.,Pi, Shanshan.,Yang, Yang.,Li, Zhida.,Yu, Yongjie.,...&Lu, Lu.(2023).Solar-Driven interfacial evaporation for decentralized direct potable reuse of domestic wastewater.CHEMICAL ENGINEERING JOURNAL,468.
MLA	Chao, Weixiang,et al."Solar-Driven interfacial evaporation for decentralized direct potable reuse of domestic wastewater".CHEMICAL ENGINEERING JOURNAL 468(2023).