Flux Decline Study of Tubular Ceramic and Flat Sheet UF Membranes in Textile Wastewater Treatment

This work gives an assessment of the application of two ultrafiltration membrane types, which are the same in pore size but different in chemistry and configuration module, for textile wastewater treatment. Characterization was based on the solute rejection data of two commercial membranes, flat sheet polyethersulfone (PES) and tubular multichannel<br /> ceramic membrane, and flux decline was provided using polyethylene glycol (PEG) solutions of different molar mass. The permeate flux recovery after chemical cleaning was evaluated, and the efficiency of wastewater treatment was estimated on the basis of the analysis of textile wastewater and permeate. The permeate flux decline study showed that fouling was less likely to occur when PES membrane was used for wastewater treatment. PES flat membrane has proven to be more effective in the treatment of wastewater with total organic carbon (TOC) and colour removal efficiency of 72 % and 85 % respectively.

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Tight Ultrafiltration Ceramic Membrane for Separation of Dyes and Mixed Salts (both NaCl/Na2SO4) in Textile Wastewater Treatment

Industrial & Engineering Chemistry Research ◽

10.1021/acs.iecr.7b01440 ◽

2017 ◽

Vol 56 (24) ◽

pp. 7070-7079 ◽

Cited By ~ 57

Author(s):

Xiao Ma ◽

Pengli Chen ◽

Ming Zhou ◽

Zhaoxiang Zhong ◽

Feng Zhang ◽

...

Keyword(s):

Wastewater Treatment ◽

Ceramic Membrane ◽

Textile Wastewater ◽

Mixed Salts ◽

Textile Wastewater Treatment

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Flux decline study for textile wastewater treatment by membrane processes

Desalination ◽

10.1016/j.desal.2008.04.046 ◽

2009 ◽

Vol 244 (1-3) ◽

pp. 321-332 ◽

Cited By ~ 58

Author(s):

Cheima Fersi ◽

Lassaad Gzara ◽

Mahmoud Dhahbi

Keyword(s):

Wastewater Treatment ◽

Textile Wastewater ◽

Membrane Processes ◽

Flux Decline ◽

Textile Wastewater Treatment

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Ultrafiltration of activated sludge with ceramic membranes in a cross-flow membrane bioreactor process

Water Science & Technology ◽

10.2166/wst.2000.0653 ◽

2000 ◽

Vol 41 (10-11) ◽

pp. 243-250 ◽

Cited By ~ 20

Author(s):

X-j. Fan ◽

V. Urbain ◽

Y. Qian ◽

J. Manem

Keyword(s):

Wastewater Treatment ◽

Membrane Fouling ◽

Membrane Bioreactor ◽

Municipal Wastewater ◽

Ceramic Membrane ◽

Treatment Plant ◽

Cross Flow ◽

Ceramic Membranes ◽

Permeate Flux ◽

Chemical Cleaning

A cross-flow membrane bioreactor (MBR) for raw municipal wastewater treatment, consisting of a suspended growth bioreactor and a ceramic membrane ultrafiltration unit, was run over a period of more than 300 days in a wastewater treatment plant (WWTP). Sludge Retention Times (SRT) of 20, 10 and 5 days, respectively, and Hydraulic Retention Times (HRT) of 15 and 7.5 hours were tested. Membrane fouling was found to be a function of SRT and permeate flux. Under an SRT of 20 days and flux of 71 l/m2\ · h at 30°C, the MBR was successfully run over 70 days without the need for chemical cleaning. However chemical cleaning had to be undertaken every 3–5 days at shorter sludge retention times (typically an SRT of five days and a flux of 143 l/m2\ · h at 30°C). In this study, fouling materials were removed efficiently through chemical cleaning, with an average permeablity recovery of 87±11%.

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