Versatile Janus Composite Nonwoven Solar Absorbers with Salt Resistance for Efficient Wastewater Purification and Desalination

2021 ◽  
Author(s):  
Shuangjie Sun ◽  
Yameng Wang ◽  
Binbin Sun ◽  
Feifei Zhang ◽  
Qing Xu ◽  
...  
Keyword(s):  
Salt Resistance ◽  
Wastewater Purification ◽  
Solar Absorbers ◽  
Composite Nonwoven

scholarly journals Sustainable Zero Liquid Discharge of Concentrated Brine by Janus Wood Evaporator

2021 ◽  
Author(s):  
Xi Chen ◽  
Shuaiming He ◽  
Mark Falinski ◽  
Yuxi Wang ◽  
Tian Li ◽  
...  
Keyword(s):  
Environmental Sustainability ◽  
Energy Efficient ◽  
High Salinity ◽  
Salt Resistance ◽  
Industrial Applications ◽  
Salt Accumulation ◽  
Widespread Application ◽  
Solar Absorber ◽  
Solar Absorbers ◽  
Liquid Discharge

Abstract Solar-driven distillation is a promising technology for energy-efficient freshwater generation, but salt accumulation on solar absorbers and system longevity are major challenges that hinder its widespread application. In this study, we present a novel Janus wood evaporator that overcame these challenges and achieved record-high evaporation efficiencies in high-salinity brine, one of the most difficult water sources to treat using desalination. The Janus wood evaporator had an asymmetric surface wettability, where the top layer acted as a hydrophobic solar absorber with enhanced thermal insulation, while the bottom hydrophilic wood layer allowed for rapid water replenishment. An evaporation efficiency of 82.0% was achieved for 20% NaCl solution, and superior salt-resistance was observed during a 10-cycle longevity test. To ensure the environmental sustainability of the new Janus wood evaporator, a life cycle assessment (LCA) was conducted to compare this Janus wood evaporator to emerging Janus evaporators. Results showed that Janus wood evaporators could emit up to two orders of magnitude less CO2 equivalents than an aerogel Janus evaporator (AJE) and up to 80% fewer emissions than an electrospun Janus mat (EJM), indicating a functional and more sustainable opportunity for off-grid industrial applications and humanitarian efforts.

SELECTIVE SOLAR ABSORBERS

2012 ◽  
Vol 15 (15) ◽  
pp. 231-254 ◽  
Author(s):  
Peter Bermel ◽  
Jeongwon Lee ◽  
John D. Joannopoulos ◽  
Ivan Celanovic ◽  
Marin Soljacie
Keyword(s):  
Solar Absorbers

METHODS OF USING MICROELEMENTS TO INCREASE SALT RESISTANCE OF COTTON

2020 ◽  
Author(s):  
Askar Kholliyev ◽  
Umida Norboyeva ◽  
Khamida Adizova
Keyword(s):  
Salt Resistance

Synthesis and Flocculation Performance of Salt Resistance Amphoteric Flocculants by Dispersion Polymerization

2013 ◽  
Vol 30 (8) ◽  
pp. 909
Author(s):  
Bo HONG ◽  
Kun XU ◽  
Mingyao ZHANG ◽  
Kang XU ◽  
Ying TAN ◽  
...  
Keyword(s):  
Dispersion Polymerization ◽  
Salt Resistance

scholarly journals Preparation of Zn-MOFs by microwave-assisted ball milling for removal of tetracycline hydrochloride and Congo red from wastewater

2021 ◽  
Vol 10 (1) ◽  
pp. 125-133
Author(s):  
Qinhui Ren ◽  
Fuhua Wei ◽  
Hongliang Chen ◽  
Ding Chen ◽  
Bo Ding
Keyword(s):  
Ball Milling ◽  
Congo Red ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Tetracycline Hydrochloride ◽  
Infrared Spectrometry ◽  
X Ray Diffraction ◽  
Wastewater Purification ◽  
Microwave Assisted ◽  
Metal Organic

Abstract In this study, we prepared Zn-MOFs as an ordinary, low-cost, and efficiency method taking advantage of zinc(ii) acetate monohydrate and 1,3,5-benzenetricarboxylic acid in microwave-assisted ball milling. The Zn-MOFs were measured via scanning electron microscopy, infrared spectrometry, X-ray diffraction, and thermogravimetry. We explored its use as a photocatalyst for the degradation of tetracycline hydrochloride and Congo red from aqueous solutions. The results demonstrate that the kinetic model was appropriate for the removal of organic pollutants. In general, it is feasible, inexpensive, and effective to use metal organic framework (MOF) to treat waste liquid. Therefore, our findings indicate that Zn-MOFs have broad application vista in wastewater purification.

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