Comparison between a conventional membrane bioreactor (C-MBR) and a biofilm membrane bioreactor (BF-MBR) for domestic wastewater treatment

Subtil, Eduardo Lucas; Mierzwa, José Carlos; Hespanhol, Ivanildo

doi:10.1590/0104-6632.20140313s00002890

Cited by 45 publications

(25 citation statements)

References 26 publications

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“…This system significantly mitigates the biofouling, improves both the nitrification and denitrification processes of MBR. Similar results have been reported by Subtil, et al[54]. The authors reported no significant difference observed between the BF-MBR and MBR for COD removal.…”

supporting

confidence: 90%

Green technology in wastewater treatment technologies: Integration of membrane bioreactor with various wastewater treatment systems

Neoh

Noor

Mutamim

et al. 2016

Chemical Engineering Journal

263

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supporting

confidence: 90%

Green technology in wastewater treatment technologies: Integration of membrane bioreactor with various wastewater treatment systems

Neoh

Noor

Mutamim

et al. 2016

Chemical Engineering Journal

263

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“…This could be attributed to the fact that the rejection of monovalent ions such as Na + by NF is weak. 42,43 In addition, the pH did not affect the membrane rejection when the polyamide membrane pH operating range is 4-11. Figure 7 shows the results of RO for waste water treatment containing cations and anions using the old RO and new RO membranes.…”

Section: Resultsmentioning

confidence: 94%

“…42 While the membrane separation systems and the combination of these systems with other technologies, such as membrane bioreactors (MBR), are the most promising treatment technologies for effluent reuse. 43 Also, studies show that NF is an efficient treatment system for secondary or tertiary effluents aiming at the generation of water for industrial, agricultural, or indirect potable reuse. 44,45 …”

Section: Wastewatermentioning

confidence: 99%

Performance of nano-filtration and reverse osmosis processes for wastewater treatment

Aljlil¹

2017

Mater. Tehnol.

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This study was carried out to evaluate the performance of nano-filtration (NF) and reverse osmosis (RO) technology for reducing the total salt concentration from waste water. The nano-filtration proved very effective in removing the polyvalent cations and anions, such as SO4 -, whereas the removal efficiency was 97.22 %. It is well known that a RO water-treatment process removes all the cations and anions from waste water or brine or sea water, especially removing the monovalent ions such as Cl -where the removal efficiency was 94.4 %. The performance efficiency of RO and NF water-treatment processes declined significantly during the first 3 years of operation due to fouling and biofouling of the membrane. The research findings provided a concrete clue for the important issue of water treatment as an alternative to existing water use methods on a cost-effective basis. The research also highlighted the potential to replace the NF and RO membranes used in these two water-treatment techniques. Keywords: desalination of waste water, reverse osmosis, nano-filtration Izvedena je bila {tudija ocene zmogljivosti tehnologije nanofiltracije (angl. NF) in povratne osmoze (angl. RO) za zmanj{anje skupne vsebnosti soli v odpadni vodi. Nanofiltracija je zelo u~inkovita pri odpravljanju polivalentnih kationov in anionov, kot so SO4 -, kjer je bila u~inkovitost odstranitve 97,22 %. Dobro je poznano, da RO postopek obdelave vode odstrani vse katione in anione iz odpadne vode, slanice ali morske vode, {e posebno monovalentni Cl -, kjer je bila u~inkovitost odstranitve 94,4 %. Zmogljivost RO in NF procesov pri obdelavi vode se ob~utno zmanj{a med prvim 3-letnim obratovanjem zaradi ma{enja in biolo{kega nalaganja na membrane. Ugotovitve raziskave omogo~ajo konkreten namig za pomembno vpra{anje obdelave vode, kot cenovno u~inkovita alternativa sedanjim metodam. Raziskava je pokazala tudi mo`nost za zamenjavo NF in RO membran, ki se jih uporablja v teh dveh na~inih obdelave vode.

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“…As membranas possuíam porosidade média de 0,022 ± 0,006 µm, conforme descrito por Subtil et al (2012). O sistema de membranas de placa plana foi desenvolvido no CIRRA (Figura 4), sendo feito através da usinagem de placas de PVC, onde …”

Section: Módulo De Membranaunclassified

Submerged Membrane Bioreactor (sMBR): a promising alternative to wastewater treatment for water reuse

Subtil¹,

Hespanhol²,

Mierzwa³

2013

Rev. ambiente água

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RESUMOAs tecnologias disponíveis para o tratamento e reúso de água a partir de esgotos sanitários abrangem um vasto número de opções, sendo os Biorreatores com Membranas Submersas considerados elementos chaves pelo papel que podem desempenhar em esquemas de reúso de água. Neste sentido, este estudo teve como objetivo apresentar um entendimento do status atual de aplicação dos BRMs, bem como apresentar os resultados de uma unidade piloto com membranas submersas do tipo placa plana tratando esgoto sanitário proveniente da moradia estudantil e do restaurante universitário da Universidade de São Paulo. A unidade piloto foi operada em condições estacionárias durante um período de 90 dias com uma concentração de 3422 ± 693 mg SST/L. Os resultados obtidos demonstraram que o sistema é capaz de produzir um efluente com baixas concentrações de cor, turbidez, DBO 5 e DQO, com valores de 25 uC, 0,29 UNT, 5,5 mg O 2 /L e 24 mg O 2 /L, respectivamente. Além disso, as membranas de ultrafiltração utilizadas foram eficientes na remoção de indicadores de organismos patogênicos, com remoção de 7 e 6 log de coliformes termotolerantes e E. coli, resultando em um efluente com concentração de 9,3 ± 21,0 e 1,8 ± 4,0 NMP/100 ml, respectivamente.Palavras-chaves: tratamento avançado de esgoto, membranas, reúso de água. Submerged Membrane Bioreactor (sMBR): a promising alternative to wastewater treatment for water reuse ABSTRACTTreatment technology for wastewater treatment and reuse encompasses a vast number of options, and the Submerged Membrane Bioreactor is regarded as a key element for the role it can play in water reuse schemes. Thus, this study aimed to present and discuss the current status of sMBR implementation, as well as to present the results of a pilot plant with submerged flat sheet membranes treating wastewater from the residence halls and the restaurant of the University of São Paulo. The pilot plant was operated under stationary conditions over a period of 90 days with a concentration of 3422 ± 693 mg TSS/L. The results showed that the system can produce an effluent with low concentrations of color, turbidity,

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Comparison between a conventional membrane bioreactor (C-MBR) and a biofilm membrane bioreactor (BF-MBR) for domestic wastewater treatment

Cited by 45 publications

References 26 publications

Green technology in wastewater treatment technologies: Integration of membrane bioreactor with various wastewater treatment systems

Green technology in wastewater treatment technologies: Integration of membrane bioreactor with various wastewater treatment systems

Performance of nano-filtration and reverse osmosis processes for wastewater treatment

Submerged Membrane Bioreactor (sMBR): a promising alternative to wastewater treatment for water reuse

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