Author Correction: Chlorination disadvantages and alternative routes for biofouling control in reverse osmosis desalination

Al‐Abri, Mohammed; Al-Ghafri, Buthayna; Bora, Tanujjal; Dobretsov, Sergey; Dutta, Joydeep; Castelletto, Stefania; Rosa, Lorenzo; Boretti, Alberto

doi:10.1038/s41545-019-0033-2

Cited by 8 publications

(4 citation statements)

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“…Water scarcity is a rising issue across the world . Less than 1% of the world’s water supplies are available as freshwater in rivers, lakes, and groundwater. , With increasing freshwater demand due to population growth and higher water consumption in industries, desalination techniques could be crucial to tap into the abundant saline water to fulfill the requirements. − However, saline water sources often contain a multitude of ions in addition to sodium chloride (NaCl) that should be addressed when considering desalination. − Some of the ions that are harmful need to be entirely removed, such as arsenic, while other ions (such as fluoride) can be beneficial in smaller quantities and should ideally be optimally removed . This necessitates the development of technologies that can remove all kinds of ions from multi-ion solutions and, at the same time, preferably remove only the desired amounts of each ion species.…”

Section: Introductionmentioning

confidence: 99%

Predicting and Enhancing the Ion Selectivity in Multi-Ion Capacitive Deionization

Nordstrand

Dutta

2020

Langmuir

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Lack of potable water in communities across the globe is a serious humanitarian problem promoting the desalination of saline water (seawater and brackish water) to meet the growing demands of human civilization. Multiple ionic species can be present in natural water sources in addition to sodium chloride, and capacitive deionization (CDI) is an upcoming technology with the potential to address these challenges because of its efficacy in removing charged species from water by electro-adsorption. In this work, we have investigated the effect of device operation on the preferential removal of different ionic species. A dynamic Langmuir (DL) model has been a starting point for deriving the theory, and the model predictions have been validated using data from reports in the literature. Crucially, we derive a simple relationship between the adsorption of different ionic species for short and long adsorption periods. This is leveraged to directly predict and enhance the selective ion removal in CDI. Furthermore, we demonstrate an example of how this selectivity could reduce excess removal of ions to avoid remineralization needs. In conclusion, the method could be valuable for predicting the impact of improved device operation on capacitive deionization with multi-ion compositions prevalent in natural water sources.

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Section: Introductionmentioning

confidence: 99%

Predicting and Enhancing the Ion Selectivity in Multi-Ion Capacitive Deionization

Nordstrand

Dutta

2020

Langmuir

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“…Typically, RO membranes are used to reduce the ionic content of water and work in conjunction with other techniques which reduce the organics and microbial content (disinfection) of the water prior to it being passed through the RO membrane. Managing the biological matter is a prerequisite to reduce the membrane biofouling propensity of the water and subsequent propagation of water-based infections (Al-Abri et al, 2019;Wang Y. H. et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Technologies for water disinfection have constantly evolved with time, from simple sedimentation processes to chemical treatments and advanced oxidation techniques including chlorination and ozonation (von Gunten, 2003;Richardson and Postigo, 2012;Ding et al, 2019). Among them, chlorination is the most widely used technique providing both primary and residual disinfection, albeit with certain disadvantages (Kimbrough and Suffet, 2002;Hua and Reckhow, 2007;Richardson and Postigo, 2012;Al-Abri et al, 2019;Stefán et al, 2019;Zhong et al, 2019). However it is fast being replaced with new technologies like photocatalysis, UV light treatment, ultrasonication, magnetic enhanced disinfection, and electrochemical methods (Baruah et al, 2012;Bora et al, 2017;Cheema et al, 2018;Cho et al, 2019;Jiang et al, 2019;Wang C. et al, 2019;You et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Disinfection of Bacteria in Water by Capacitive Deionization

et al. 2020

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Clean water is one of the primary UN sustainable development goals for 2,030 and sustainable water deionization and disinfection is the backbone of that goal. Capacitive deionization (CDI) is an upcoming technique for water deionization and has shown substantial promise for large scale commercialization. In this study, activated carbon cloth (ACC) electrode based CDI devices are used to study the removal of ionic contaminants in water and the effect of ion concentrations on the electrosorption and disinfection functions of the CDI device for mixed microbial communities in groundwater and a model bacterial strain Escherichia coli. Up to 75 % of microbial cells could be removed in a single pass through the CDI unit for both synthetic and groundwater, while maintaining the salt removal activity. Mortality of the microbial cells were also observed during the CDI cell regeneration and correlated with the chloride ion concentrations. The power consumption and salt removal capacity in the presence and absence of salt were mapped and shown to be as low as 0.1 kWh m −3 and 9.5 mg g −1 , respectively. The results indicate that CDI could be a viable option for single step deionization and microbial disinfection of brackish water.

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“…Ozonation produces fewer byproducts but it is more expensive than chlorination. UV treatment does not leave residual products; however, it does not protect against future infections in the distribution network and it is unsuitable to treat turbid water as the light cannot penetrate [3,4].…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Photocatalytic and Antimicrobial AgGaCl Tri-Doped ZnO Nanorods for Water Treatment under Visible Light Irradiation

2020

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The aim of the present study is to analyze the synergy of antimicrobial elements, such as Ga, Ag and Cl by incorporating them in ZnO nanorods and measuring their antimicrobial and photocatalytic activity under visible light irradiation for water treatment. AgGa-doped ZnO nanorods and AgGaCl-doped ZnO nanorods on polyethylene substrate were prepared by a simple and fast microwave assisted synthesis. HCl was used in order to lower the pH of the precursor solution and favor Ga and Cl incorporation in the ZnO nanorods. The synthesized undoped and doped ZnO nanorods were analyzed with SEM, EDX, XRD and CL. The photocatalytic properties of the nanorods were evaluated via methylene blue degradation under visible light irradiation. Antimicrobial activity of the nanorods was measured via growth kinetics of Vibrio parahaemolyticus. It was found that AgGaCl-doped ZnO nanorods improve the methylene blue photo-degradation and above all, the antimicrobial activity of the AgGaCl tri-doped ZnO nanorods showed a lethal effect on the bacteria’s growth. This work shows that AgGaCl NRs are an excellent alternative for the development of sustainable water treatment devices and antimicrobial applications.

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Author Correction: Chlorination disadvantages and alternative routes for biofouling control in reverse osmosis desalination

Abstract: In the original version of this Review Article the affiliation and address for Lorenzo Rosa were incorrectly given as “University of Parma, Department of Information Engineering, Parma 43121, Italy”.

Cited by 8 publications

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Predicting and Enhancing the Ion Selectivity in Multi-Ion Capacitive Deionization

Predicting and Enhancing the Ion Selectivity in Multi-Ion Capacitive Deionization

Disinfection of Bacteria in Water by Capacitive Deionization

Highly Efficient Photocatalytic and Antimicrobial AgGaCl Tri-Doped ZnO Nanorods for Water Treatment under Visible Light Irradiation

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