Transport coefficients in desalting processes by electrodialysis

Garrido, Javier

doi:10.1016/j.desal.2010.07.032

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…NF could be characterized as a half-way between ultrafiltration (UF) and reverse osmosis (RO), which offers higher permeate flux compared to that of RO and allows rejection of smaller and charged molecules compared to that of UF. It has been reported that NF is capable of removing trace organic and inorganic contaminants [1,2,3], and simultaneously under a lower operating pressure and lesser emission of concentrated water than those of RO. Notwithstanding, the major challenge in NF technology is membrane fouling [4,5], which would cause a decline in permeate flux, and more severely, make the system failure.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Pre-Treatment Methods for Nanofiltration (NF) in Drinking Water Treatment Related with Organic Removal and Membrane Fouling Mitigation

Sun

Dong

Guo

2012

AMR

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Nanofiltration is a promising technology for water engineering. However, membrane fouling is the major bottleneck for NF application. In this paper, four typical methods, in the drinking water treatment trains, were comprehensively studied for their effectiveness as NF pretreatments, based on the organic removal improvement and membrane fouling mitigation. It was found that coagulation and UF had stably higher removal efficiencies of organic matters, whilst showed quite better fouling mitigation capabilities than the other methods. According to the analysis of total resistance changes in the NF membrane, coagulation could decrease the irreversible resistance to some extent, and improve the fouling recovery potential. Notwithstanding, the enhancement of nitrogen components by all pre-treatment methods were limited, indicating that further treatment would be necessary. This result herein was very useful to understand the NF process for drinking water treatment, as well to elevate the cost-effectiveness of NF application.

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Section: Introductionmentioning

confidence: 99%

Comparison of Pre-Treatment Methods for Nanofiltration (NF) in Drinking Water Treatment Related with Organic Removal and Membrane Fouling Mitigation

Sun

Dong

Guo

2012

AMR

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Quaternized graphene oxide modified PVA-QPEI membranes with excellent selectivity for alkali recovery through electrodialysis

Sun

Liu

et al. 2020

Chemical Engineering Research and Design

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Efficiency Problem of renewable energetics systems in the context of «smart house» concept

et al. 2020

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Considering the question of efficiency of alternative energy systems, producing electricity from the position of interests of households it acquires an unexpected sound. The efficiency can be low (about 7-10%) providing that the heat released in converting is targeted i.e also used on the needs of households. In such an approach low efficiency becomes acceptable since the most part of energy usage in households is spent on systems using the heat (hot water supply etc.) even in the summer period. It is shown that converting of energy providing targeted heat dissipation can be provided by the phenomenon of generation of electromotive force by flowing of the low-speed, low-molecular salt current trough the polymeric sewed net; relevant experimental results are presented. Basing on the analysis of low-molecular ions currents balance by flowing of solution through the gel, the theory of the phenomenon is proposed. It is shown that the described phenomenon and based on its energy converting systems can be considered as an example illustrating the perspectivity of the new paradigm of green energetics development. Given paradigm is based on principles of technical and humanitarian knowledge convergence and is completely consistent with the conclusion that the environment-friendly technologies development is a technical and social issue at one time.

show abstract

Transport coefficients in desalting processes by electrodialysis

Cited by 3 publications

References 14 publications

Comparison of Pre-Treatment Methods for Nanofiltration (NF) in Drinking Water Treatment Related with Organic Removal and Membrane Fouling Mitigation

Comparison of Pre-Treatment Methods for Nanofiltration (NF) in Drinking Water Treatment Related with Organic Removal and Membrane Fouling Mitigation

Quaternized graphene oxide modified PVA-QPEI membranes with excellent selectivity for alkali recovery through electrodialysis

Efficiency Problem of renewable energetics systems in the context of «smart house» concept

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