Evaluation of treatment performance of a full-scale membrane bioreactor (MBR) plant from unsteady to steady state condition

Khan, Sher Jamal; Hasnain, Ghalib; Fareed, Hasan; Aïm, R. Ben

doi:10.1016/j.jwpe.2017.03.004

Cited by 15 publications

(6 citation statements)

References 19 publications

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“…The retention of MLSS by the membrane has increased the heterotrophic activity, which might have contributed to the low COD concentration in the effluent. A similar low effluent COD concentration due to membrane retention was observed in the other studies with MBR (Isma et al, 2014; Khan et al, 2019). In addition to that, the influent (sodium acetate) used in the study was a readily biodegradable substrate, and hence, low COD in the effluent may have been encountered.…”

Section: Resultssupporting

confidence: 83%

“…This low effluent concentration of NH 4 -N can be attributed to the infinite SRT and the retention of nitrifying bacteria by the membrane. Because the membrane can serve as a barrier to retain nitrifying bacteria in the reactor, autotrophic nitrifiers proliferate without loss, thereby indirectly facilitating nitrification (Khan et al, 2019). In the CMBR and Novel-MBR, the effluent NO 3 -N concentrations were 22.63 ± 0.88 and 14.07 ± 0.54 mg/L, respectively.…”

Section: Treatment Performance Of Cmbr and Novel-mbrmentioning

confidence: 99%

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Enhanced membrane fouling control through self‐forming dynamic membrane and sponge‐wrapped membrane: A novel membrane bioreactor

Nagalakshmi¹,

Mohan²

2023

Water Environment Research

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Membrane technology offers a wide variety of advantages in wastewater treatment, but fouling impedes its widespread applications. Hence, in this study, a novel method was tried to control membrane fouling by combining the self‐forming dynamic membrane (SFDM) with a sponge‐wrapped membrane bioreactor. The configuration is termed a “Novel‐membrane bioreactor” (Novel‐MBR). To compare the performance of Novel‐MBR, a conventional membrane bioreactor (CMBR) was operated under similar operating conditions. CMBR and Novel‐MBR were run consequently for 60 and 150 days, respectively. The Novel‐MBR was composed of SFDMs in two compartments before a sponge‐wrapped membrane in the membrane compartment. In Novel‐MBR, the formation times for SFDMs on coarse (125 μm) and fine (37 μm) pore cloth filers were 43 and 13 min, respectively. The CMBR experienced more frequent fouling; the maximum fouling rate was 5.83 kPa/day. In CMBR, the membrane fouling due to cake layer resistance (6.92 × 1012 m−1) was high, and that alone contributed to 84% of fouling. In Novel‐MBR, the fouling rate was 0.0266 kPa/day, and the cake layer resistance was 0.329 × 1012 m−1. Also, the Novel‐MBR experienced 21 times less reversible fouling and 36 times less irreversible fouling resistance than the CMBR. In Novel‐MBR, the formed SFDM and the sponge wrapped on the membrane helped to reduce both reversible and irreversible fouling. With the modification tried in the present study, the Novel‐MBR experienced less fouling, and the maximum transmembrane pressure at the end of 150 days of operation was 4 kPa. Practitioner Points CMBR experienced frequent fouling, and the maximum fouling rate was 5.83 kPa/day. Cake layer resistance was dominant in CMBR and contributed to 84% of fouling. The fouling rate of Novel‐MBR at the end of the operation was 0.0266 kPa/day. Novel‐MBR is expected to perform for ≈3380 days to reach the maximum TMP of 35 kPa.

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Section: Resultssupporting

confidence: 83%

Section: Treatment Performance Of Cmbr and Novel-mbrmentioning

confidence: 99%

Enhanced membrane fouling control through self‐forming dynamic membrane and sponge‐wrapped membrane: A novel membrane bioreactor

Nagalakshmi¹,

Mohan²

2023

Water Environment Research

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“…The comparability of the results from these studies suggests that MBR and CUBSF technologies can achieve consistent performance across different scales of application, influent qualities (i.e. synthetic or real wastewater) and complexity of operation [42].…”

Section: Processes Performancementioning

confidence: 86%

Full-scale trials to achieve low total phosphorus in effluents from sewage treatment works

Alibardi

Vale

Fernández

2021

Journal of Water Process Engineering

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“…The favourable properties of more hydrophobic sludges have previously been noted in conventional activated sludge treatment of PPW treatment [44]. Other studies of MBR MLSS are typically confined to domestic MLSS with CST's below 30 seconds [45,46]. The CST's involved in the MBR treatment of pulp and paper wastewater can be more than an order of magnitude higher.…”

Section: Mlss Propertiesmentioning

confidence: 99%

Colloidal carbon interference in the treatability of pulp and paper wastewater by MBR

Scholes

Carter

Verheyen

2019

Journal of Environmental Chemical Engineering

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Evaluation of treatment performance of a full-scale membrane bioreactor (MBR) plant from unsteady to steady state condition

Cited by 15 publications

References 19 publications

Enhanced membrane fouling control through self‐forming dynamic membrane and sponge‐wrapped membrane: A novel membrane bioreactor

Enhanced membrane fouling control through self‐forming dynamic membrane and sponge‐wrapped membrane: A novel membrane bioreactor

Full-scale trials to achieve low total phosphorus in effluents from sewage treatment works

Colloidal carbon interference in the treatability of pulp and paper wastewater by MBR

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