Coupling microfiltration membrane with biocathode microbial desalination cell enhances advanced purification and long-term stability for treatment of domestic wastewater

Zuo, Kuichang; Chen, Man-Sheng; Liu, Fubin; Xiao, Kang; Zuo, Jiaolan; Cao, Xun; Zhang, Xiaoyuan; Liang, Peng; Huang, Xia

doi:10.1016/j.memsci.2017.10.034

Cited by 55 publications

(7 citation statements)

References 57 publications

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“…The values do not take into account other energy consuming components such as backwashing and air compressors, since the setup used manual backwashing. As a reference to the calculated values, the energy consumption compares closely to previously reported values for practical MF systems in the range of 0.09–0.1 kWh/m 3 , although these have considered the full MF process energy requirements. Backwashing may be the additional contributor to MF plant electrical energy required, which should be in turn lower with a less fouled membrane.…”

Section: Resultssupporting

confidence: 76%

Sunlight-Transmitting Photocatalytic Membrane for Reduced Maintenance Water Treatment

et al. 2021

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Membranes remove contaminants from drinking water but require routine cleaning with harsh chemicals that are less conveniently accessed, handled, and disposed of in remote communities. This work demonstrates a nonchemical solar cleaning alternative using simulated sunlight that has been conveniently directed through a light-transmitting porous glass substrate to a thin TiO 2 photocatalytic membrane coating. Deadend filtration of nonpotable water with routine chemical-free backwashing showed the solar cleaning provided a 4.5-fold extension to the time needed before a chemical clean, as well as a 50% reduction in filtration pump electricity demand. These improvements were attributed to formation of hydroxyl radicals and subsequent oxidation of organic foulants, as well as the wellknown photocatalytic superhydrophilic surface stimulation of TiO 2 surfaces. Both effects acted together to reduce irreversible surface attachment of organic foulants. Size exclusion chromatography (SEC) indicated the effect only targeted the organic molecule− membrane surface interaction as little change was observed in the bulk organics profiles. Substrate light transmission onto photocatalytic membrane surfaces demonstrated in this work could be successfully applied as a membrane cleaning method during water treatment in remote communities. Future explorations can be made into potential for enhanced disinfection and antifouling functions on wider ranges of organic contaminated water supplies.

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Section: Resultssupporting

confidence: 76%

Sunlight-Transmitting Photocatalytic Membrane for Reduced Maintenance Water Treatment

et al. 2021

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“…The first concept of MDC was proposed by Cao et al in a cell of 9 cm 2 (cross section) with a saline volume chamber of 11 mL, achieving 90% of salt removal batchwise, at initial salt concentrations ranging from 5 to 35 NaCl g•L −1 (Cao et al, 2009). Different MDC configurations have been reported in the literature, including cubic and tubular reactors (Mehanna et al, 2010;Jacobson et al, 2011a,b;Ping and He, 2013), stacked cells (Chen et al, 2011;Kim and Logan, 2011), using batch recirculation (Chen et al, 2012;Qu et al, 2012), biocathodes (Wen et al, 2012), increasing water production by applying external voltage (Ge et al, 2014), or integrating innovative membranes (forward osmosis) (Zhang and He, 2012;Yuan et al, 2015), ion exchange resins in the compartments , or microfiltration processes (Zuo et al, 2017(Zuo et al, , 2018. Up to date, the biggest MDC ever built (100 L) was reported to achieve partial desalination of sea water with a nominal desalination rate of 0.077 L•m −2 •h −1 (Zhang and He, 2015).…”

Section: Introductionmentioning

confidence: 99%

Comparative Performance of Microbial Desalination Cells Using Air Diffusion and Liquid Cathode Reactions: Study of the Salt Removal and Desalination Efficiency

et al. 2019

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Microbial Desalination Cell (MDC) represents an innovative technology which accomplishes simultaneous desalination and wastewater treatment without external energy input. MDC technology could be employed to provide freshwater with low-energy input, for example, in remote areas where organic wastes (i.e., urban or industrial) are available. In addition, MDC technology has been proposed as pre-treatment in conventional reverse osmosis plants, with the aim of saving energy and avoiding greenhouse gases related to conventional desalination processes. The use of oxygen reduction (i.e. O 2 + 2H 2 O + 4e − → 4 OH − , E 0 ′ = 0.815 V, pH = 7) was usually implemented as cathodic reaction in most of the MDCs reported in literature, whereas other strategies based on liquid catholytes have been also proposed, for example, ferroferricyanide redox couple (i.e. Fe(CN) 3− 6 + 1e − → Fe(CN) 4− 6 , E 0 = 0.37 V). As the MDC designs in the literature and operation modes (i.e., batch, continuous, semi-continuous, etc.) are quite different, the available MDC studies are not directly comparable. For this reason, the main objective of this work was to have a proper comparison of two similar MDCs operating with two different catholyte strategies, and compare performance and desalination efficiencies. In this sense, this study compares the desalination performance of two laboratory-scale MDCs located in two different locations for brackish water and sea water using two different strategies. The first strategy consisted of an air cathode for efficient oxygen reduction, while the second strategy was based on a liquid catholyte with Fe 3+ /Fe 2+ solution (i.e., ferro-ferricyanide complex). Both strategies achieved desalination efficiency above 90% for brackish water. Nominal desalination rates (NDR) were in the range of 0.17-0.14 L•m −2 •h −1 for brackish and seawater with air diffusion cathode MDC, respectively, and 1.5-0.7 L•m −2 •h −1 when using ferro-ferricyanide redox MDC. Organic matter present in wastewater was effectively removed at 0.9 and 1.1 kg COD•m −3 •day −1 using the air diffusion cathode MDC for brackish and Ramírez-Moreno et al.Comparative Performance of Microbial Desalination Cells sea water, respectively, and 7.1 and 19.7 kg COD•m −3 •day −1 with a ferro-ferricyanide redox MDC. Both approaches used a laboratory MDC prototype without any energy supply (excluding pumping energy). Pros and cons of both strategies are discussed for subsequent upscaling of MDC technology.

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“…In a study, Zuo et al. (2018) fabricated a hollow fiber microfiltration membrane (HFM) coupled with biocathode microbial desalination cell (MDC). This hybrid process needs wastewater as a water input and possesses relatively cheap HFM coupled biocathode compared with conventional Pt cathode.…”

Section: Mbr Configurationmentioning

confidence: 99%

Membrane processes

Arabi¹,

Pellegrin

Aguinaldo

et al. 2020

Water Environment Research

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This literature review provides a review for publications in 2018 and 2019 and includes information membrane processes findings for municipal and industrial applications. This review is a subsection of the annual Water Environment Federation literature review for Treatment Systems section. The following topics are covered in this literature review: industrial wastewater and membrane. Bioreactor (MBR) configuration, membrane fouling, design, reuse, nutrient removal, operation, anaerobic membrane systems, microconstituents removal, membrane technology advances, and modeling. Other subsections of the Treatment Systems section that might relate to this literature review include the following: Biological Fixed-Film Systems, Activated Sludge, and Other Aerobic Suspended Culture Processes, Anaerobic Processes, and Water Reclamation and Reuse. This publication might also have related information on membrane processes: Industrial Wastes, Hazardous Wastes, and Fate and Effects of Pollutants.

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Coupling microfiltration membrane with biocathode microbial desalination cell enhances advanced purification and long-term stability for treatment of domestic wastewater

Cited by 55 publications

References 57 publications

Sunlight-Transmitting Photocatalytic Membrane for Reduced Maintenance Water Treatment

Sunlight-Transmitting Photocatalytic Membrane for Reduced Maintenance Water Treatment

Comparative Performance of Microbial Desalination Cells Using Air Diffusion and Liquid Cathode Reactions: Study of the Salt Removal and Desalination Efficiency

Membrane processes

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