Ceramic membrane behavior in textile wastewater ultrafiltration

Barredo–Damas, S.; Alcaina–Miranda, M.I.; Bes-Piá, A.; Iborra–Clar, M.I.; Iborra-Clar, A.; Mendoza–Roca, J.A.

doi:10.1016/j.desal.2009.09.037

Cited by 122 publications

(39 citation statements)

References 15 publications

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“…These processes generate large volumes of strongly colored wastewaters with high load of toxic organic and inorganic compounds [2]. Nowadays, due to the increasing environmental requirements, textile industry needs to *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Development of porous alumina membranes for treatment of textile effluent

Silva

Paskocimas

Oliveira

et al. 2016

Desalination and Water Treatment

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A B S T R A C TCeramic porous membranes sintered at two different temperature using polyvinyl alcohol and ethylene glycol as binders, and composed of two types of α-alumina with different particle sizes were investigated for the microfiltration of a textile effluent containing indigo dye, auxiliaries, heavy metals, oils, and solids. The physicochemical properties of the membranes and effluent were evaluated. X-ray diffraction, energy dispersive X-ray fluorescence spectroscopy, differential scanning calorimetry, and thermogravimetric analysis confirm that the thin membrane is composed of high crystalline and pure α-alumina. Scanning electron microscopy observation indicates that the membranes have smooth porous surface making it suitable for microfiltration applications. The membrane sintered at 1,450˚C exhibited higher water absorption (WA) and apparent porosity than that sintered at 1,475˚C. The apparent specific gravity and flexural strength are in inverse correlation with the WA due to the enhanced densification of the membranes. The filtered effluent was evaluated using a membrane with an average pore size of 0.4 μm and a total porosity of 29.6%. The average values of rejection were 90% for color, 93% for suspended solids, 95% for turbidity, 60% for metals, and 73% for chemical oxygen demand. These results demonstrate that low-cost ceramic alumina membranes are a very promising advanced treatment for textile industrial effluents.

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Section: Introductionmentioning

confidence: 99%

Development of porous alumina membranes for treatment of textile effluent

Silva

Paskocimas

Oliveira

et al. 2016

Desalination and Water Treatment

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“…[1,2,19] In addition to separate autonomous use of 500 and 1 kDa membranes, this research includes the use of membranes in a series mode. This means that the 500 kDa membrane was employed as the pretreatment step to the 1 kDa membrane separation.…”

Section: Effect Of Operating Conditionsmentioning

confidence: 99%

Effect of operating conditions on the performances of multichannel ceramic UF membranes for textile mercerization wastewater treatment

Avdičević

Košutić

Dobrović

2016

Environmental Technology

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Textile wastewaters are rated as one of the most polluting in all industrial sectors, and membrane separation is the most promising technology for their treatment and reuse of auxiliary chemicals. This study evaluates the performance of three types of tubular ceramic ultrafiltration membranes differing by mean pore size (1, 2 and 500 kDa) treating textile mercerization wastewater from a textile mill at different operating conditions: cross-flow velocity (CFV) and temperature. Acceptable results were obtained with 1 kDa ceramic membrane, with rejection efficiencies 92% for suspended solids, 98% for turbidity, 98% for color and 53% for total organic carbon at 20°C and 3 m s −1 CFV. Highest fouling effect was observed for 500 kDa membrane and lowest CFV. According to the observed results, 1 kDa membrane could be used for the treatment of wastewater from the textile mercerization process in terms of permeate quality. ARTICLE HISTORY

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“…[10] Compared to existing polymeric membranes, in particular, membranes made by ceramic materials have been applied to various wastewater treatments due to its higher permeability at lower transmembrane pressure (TMP) and resistance to acids and strong solvents. [11][12][13][14][15][16] In this study, a pre-denitrification biofilm process adopting a novel operating method and high porosity media to minimize the clogging was devised for simultaneous removal of organics and nitrogen. The pre-denitrification biofilm process was also combined with ceramic membrane having many advantages rather than existing polymeric membrane for the advanced post-treatment of municipal wastewater, and its efficacy was evaluated.…”

Section: Introductionmentioning

confidence: 99%

Integrated nitrogen removal biofilter system with ceramic membrane for advanced post-treatment of municipal wastewater

Son

Yun

Kim

et al. 2016

Environmental Technology

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The pre-denitrification biofilm process for nitrogen removal was combined with ceramic membrane with pore sizes of 0.05-0.1 µm as a system for advanced post-treatment of municipal wastewater. The system was operated under an empty bed hydraulic retention time of 7.8 h, recirculation ratio of 3, and transmembrane pressure of 0.47 bar. The system showed average removals of organics, total nitrogen, and solids as high as 93%, 80%, and 100%, respectively. Rapid nitrification could be achieved and denitrification was performed in the anoxic filter without external carbon supplements. The residual particulate organics and nitrogen in effluent from biofilm process could be also removed successfully through membrane filtration and the removal of total coliform was noticeably improved after membrane filtration. Thus, a system composed of the pre-denitrification biofilm process with ceramic membrane would be a compact and flexible option for advanced post-treatment of municipal wastewater.

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Ceramic membrane behavior in textile wastewater ultrafiltration

Cited by 122 publications

References 15 publications

Development of porous alumina membranes for treatment of textile effluent

Development of porous alumina membranes for treatment of textile effluent

Effect of operating conditions on the performances of multichannel ceramic UF membranes for textile mercerization wastewater treatment

Integrated nitrogen removal biofilter system with ceramic membrane for advanced post-treatment of municipal wastewater

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