A novel membrane reactor for ozone water treatment

Heng, S.; Yeung, King Lun; Djafer, M.; Schrotter, Jean‐Christophe

doi:10.1016/j.memsci.2006.11.039

Cited by 72 publications

(25 citation statements)

References 45 publications

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“…KHP was a non-volatile and stable refractory pollutant, it represented a class of endocrine disrupting compounds which is a major concern in environment (Heng et al, 2007;Kit Chan et al, 2012). Further, the addition of NaCl was to evaluate the rejection performance of COMR on monovalent ions.…”

Section: Wastewatermentioning

confidence: 99%

A hybrid process combining homogeneous catalytic ozonation and membrane distillation for wastewater treatment

Zhang

Zhao

et al. 2016

Chemosphere

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h i g h l i g h t s g r a p h i c a l a b s t r a c tFor the first time, homogeneous catalytic ozonation and membrane distillation were coupled in a membrane reactor. Organics and salts were efficiently removed and the homogenous catalyst was almost 100% recovered simultaneously. Membrane fouling was effectively mitigated compared to MD process.a r t i c l e i n f o b s t r a c tA novel catalytic ozonation membrane reactor (COMR) coupling homogeneous catalytic ozonation and direct contact membrane distillation (DCMD) was developed for refractory saline organic pollutant treatment from wastewater. An ozonation process took place in the reactor to degrade organic pollutants, whilst the DCMD process was used to recover ionic catalysts and produce clean water. It was found that 98.6% total organic carbon (TOC) and almost 100% salt were removed and almost 100% metal ion catalyst was recovered. TOC in the permeate water was less than 16 mg/L after 5 h operation, which was considered satisfactory as the TOC in the potassium hydrogen phthalate (KHP) feed water was as high as 1000 mg/L. Meanwhile, the membrane distillation flux in the COMR process was 49.8% higher than that in DCMD process alone after 60 h operation. Further, scanning electron microscope images showed less amount and smaller size of contaminants on the membrane surface, which indicated the mitigation of membrane fouling. The tensile strength and FT-IR spectra tests did not reveal obvious changes for the polyvinylidene fluoride membrane after 60 h operation, which indicated the good durability. This novel COMR hybrid process exhibited promising application prospects for saline organic wastewater treatment.

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Section: Wastewatermentioning

confidence: 99%

A hybrid process combining homogeneous catalytic ozonation and membrane distillation for wastewater treatment

Zhang

Zhao

et al. 2016

Chemosphere

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“…In the case of surfactant solutions, the foaming problems can be avoided. Two types of membranes with ozone permeability have been used for membrane-based ozone absorption processes [5][6][7][8][9][10][11][12][13][14][15][16]. Shanbhag et al [6][7][8] used nonporous silicone membranes for an ozone-water membrane contactors.…”

Section: Introductionmentioning

confidence: 99%

Ozone mass transfer in an ozone–water contacting process with Shirasu porous glass (SPG) membranes—A comparative study of hydrophilic and hydrophobic membranes

Kukuzaki

Fujimoto²,

Kai³

et al. 2010

Separation and Purification Technology

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“…Zeolite membranes find a wide-range of applications from separations [55][56][57], reactions [58][59][60][61], sensing [62] and pollution abatement [63][64][65][66][67]. Miniaturization is shown to benefit membrane processes and their use has been demonstrated for various reactions including selective oxidations [68][69][70], direct hydroxylation [71,72] and Knoevenagel condensation reactions [73][74][75][76].…”

Section: Discussionmentioning

confidence: 99%

Zeolite Proton Conducting Membrane for Micro Fuel Cell Applications

2010

Self Cite

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Supported and self-supporting ZSM-5 membranes (Si/Al = 25) were prepared, assembled and tested for hydrogen fuel cell performance. A Grotthus-like mechanism is proposed for the proton conduction in hydrated zeolites, where the protons hop between neighbouring aluminium sites along a water bridge in the zeolite pores. The supported ZSM-5 membrane was prepared by seeding and secondary regrowth method on cellulose paper, whereas the self-supporting zeolite membrane consists of an array of micromembranes on silicon substrate. The self-supporting HZSM-5 membrane had an open-circuit voltage (OCV) of 0.77 V compared to 0.90 V for supported HZSM-5 and 0.98 V for Nafion 117. The differences are attributed to the contact between the electrode, catalyst and membrane layers in the assembly. The selfsupporting HZSM-5 yielded a maximum power density (MPD) of 19.4 mW cm -2 compared to 14.4 mW cm -2 for supported HZSM-5 and 35 mW cm -2 for Nafion 117.

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A novel membrane reactor for ozone water treatment

Cited by 72 publications

References 45 publications

A hybrid process combining homogeneous catalytic ozonation and membrane distillation for wastewater treatment

A hybrid process combining homogeneous catalytic ozonation and membrane distillation for wastewater treatment

Ozone mass transfer in an ozone–water contacting process with Shirasu porous glass (SPG) membranes—A comparative study of hydrophilic and hydrophobic membranes

Zeolite Proton Conducting Membrane for Micro Fuel Cell Applications

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