Membrane electrodialysis process for recovery of sulfur dioxide from power plant stack gases

Liu, Kang‐Jen; Nagasubramanian, K.; Chlanda, F.P.

doi:10.1016/s0376-7388(00)80413-5

Cited by 18 publications

(6 citation statements)

References 2 publications

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“…Na2SO4 solution from the stripper to produce NaOH, which is reused for absorption [8,286]. The other process was developed by the two-compartment BMED unit with BM and CEM [286,287], and took the name of Soxal TM as an industrial process [38] (Figure 16). The spent solution is an NaHSO3/Na2SO4 mixture that is converted into a regenerated stream of Na2SO3 (in the base channel), and into a stream with SO2 (in the acid channel) that is then stripped.…”

Section: Spent Solutions From Chemical Absorption Of Flue Gasesmentioning

confidence: 99%

“…Two different processes were developed to recover spent alkaline absorbents for SO 2 . One of them was based on the three-compartment BMED fed by the Na 2 SO 4 solution from the stripper to produce NaOH, which is reused for absorption [ 8 , 286 ]. The other process was developed by the two-compartment BMED unit with BM and CEM [ 286 , 287 ], and took the name of Soxal TM as an industrial process [ 38 ] ( Figure 16 ).…”

Section: Industrial Wastewatermentioning

confidence: 99%

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Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

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This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.

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Section: Spent Solutions From Chemical Absorption Of Flue Gasesmentioning

confidence: 99%

Section: Industrial Wastewatermentioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

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“…Then, the spent solution after chemical interaction is regenerated in a bipolar electrodialysis cell to obtain the initial alkaline solution ready for reuse as well as sulfuric acid [24,25]. Instead of dosing alkaline solutions of salts to neutralize SO 2 , it is possible to use an alkaline solution obtained by bipolar electrodialysis of a sodium chloride solution [26].…”

Section: Electromembrane Disposal Of Waste Solutions For Purificationmentioning

confidence: 99%

Electro-Membrane Technologies in Energy and Industry

Филимонова

2020

Membr. Membr. Technol.

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Currently, electro-membrane processes are dynamically developing technologies with many existing and still developing areas. This paper provides an overview of modern developments in the use of electromembrane processes in the heat-and-power engineering to ensure resource and energy conservation, reduce harmful effects on the environment, and improve energy security. Electrodialysis and electrodeionization are widely used at many thermal power plants in the world and the number of such stations is constantly growing. The main attention is paid to the promising resource-saving areas of membrane technology with an industrial degree of implementation for the development at the treatment of natural water, the production of highly pure water using combined methods (electrodeionization and reverse osmosis), the disposal of highly mineralized wastewater from industrial and energy enterprises (diffusion dialysis, block electrodialysis), and energy-saving electrosynthesis-production of acids and alkalis from salt solutions (bipolar electrodialysis). When using special solutions and membranes and high temperatures, this direction can be promising.

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“…The anion/cation-exchange capacity of the bipolar membrane is 2.02/2.32 mequiv./g after isothermal absorption/desorption measurement. current-voltage curves and the limiting current density due to water splitting have been used to examine the performance of a bipolar membrane [23][24][25][26][27][28]. The current-voltage curves of the PVDF-GMA-IDA bipolar membrane exhibited the typical behavior associated with the electrical field enhanced water dissociation by a chemical reaction.…”

Section: Preparation Of the Pvdf-gma-ida Bipolar Membranementioning

confidence: 99%

Preparation and characterization of a novel bipolar membrane by plasma-induced polymerization

Wang

Chen

2008

Journal of Membrane Science

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Membrane electrodialysis process for recovery of sulfur dioxide from power plant stack gases

Cited by 18 publications

References 2 publications

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Electro-Membrane Technologies in Energy and Industry

Preparation and characterization of a novel bipolar membrane by plasma-induced polymerization

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