Fouling of a hollow fibre submerged membrane during longterm filtration of activated sludge

Matošić, Marin; Vuković, Marija Brajdić; Čurlin, Mirjana; Mijatović, Ivan

doi:10.1016/j.desal.2007.05.007

Cited by 20 publications

(5 citation statements)

References 19 publications

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“…Automatic backwash, performed with MBR permeate, was activated for 15 seconds after every 15 minutes of permeation with a flow rate of 2.0L/h. This frequency is similar to the one used by other authors (Bouhabila et al, 2001;Artiga et al, 2005;Matošića et al, 2008).…”

Section: Figuresupporting

confidence: 72%

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Andrade¹,

Mendes²,

Espíndola³

et al. 2015

Braz. J. Chem. Eng.

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-This study evaluated the technical and economic feasibility of membrane bioreactors (MBR) followed by nanofiltration (NF) for dairy wastewater treatment in order to reuse the treated effluent. It was observed that the MBR efficiently removed the organic matter and color of the feed effluent; however, due to the high concentration of dissolved solids in the permeate, it was necessary to use nanofiltration as a polishing step. The final treated effluent could be reused in the industry for cooling, steam generation and cleaning of external areas. A preliminary economic analysis showed the feasibility of the proposed system. The internal rate of return was greater than or equal to 32% when membrane lifespan was at least 2 years and the depreciation time was 15 years. The total cost of the proposed treatment system ranged from R$ 9.99/m³ to R$ 6.82/m³, depending on membrane lifespan.

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Section: Figuresupporting

confidence: 72%

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Andrade¹,

Mendes²,

Espíndola³

et al. 2015

Braz. J. Chem. Eng.

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show abstract

“…Backwash flow was adjusted to 2.0 L/h and it was triggered automatically for 15 seconds every 15 minutes of permeation. This frequency is similar to the one used by other authors (Bouhabila et al, 2001;Artiga et al, 2005;Matošića et al, 2008).…”

Section: Operational Conditionssupporting

confidence: 69%

Treatment of dairy wastewater with a membrane bioreactor

Andrade

Motta

Amaral

2013

Braz. J. Chem. Eng.

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-Among the food industries, the dairy industry is considered to be the most polluting one because of the large volume of wastewater generated and its high organic load. In this study, an aerobic membrane bioreactor (MBR) was used for the treatment of wastewater from a large dairy industry and two hydraulic retention times (HRT), 6 and 8 hours, were evaluated. For both HRTs removal efficiencies of organic matter of 99% were obtained. Despite high permeate flux (27.5 L/h.m²), the system operated fairly stablely. The molecular weight distribution of feed, permeate and mixed liquor showed that only the low molecular weight fraction is efficiently degraded by biomass and that the membrane has an essential role in producing a permeate of excellent quality.

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“…Critical flux, at 11 g L −1 MLSS concentration with a fresh filter module, was determined by the step-change method (step height between 0.65 and 0.72 L m −2 h −1 and step duration of 20 min) [23]. The TMP remained almost constant (0-0.07 kPa) for the first 137 min of operation up to an imposed flux of 4.16 L m −2 h −1 (Fig.…”

Section: Critical Fluxmentioning

confidence: 99%

Performance enhancement with powdered activated carbon (PAC) addition in a membrane bioreactor (MBR) treating distillery effluent

Satyawali

Balakrishnan

2009

Journal of Hazardous Materials

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Fouling of a hollow fibre submerged membrane during longterm filtration of activated sludge

Cited by 20 publications

References 19 publications

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Treatment of dairy wastewater with a membrane bioreactor

Performance enhancement with powdered activated carbon (PAC) addition in a membrane bioreactor (MBR) treating distillery effluent

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