Biofouling in Membrane Bioreactors: Mechanism, Interactions and Possible Mitigation Using Biosurfactants

Singh, Deepti; Satpute, Surekha K.; Ranga, Poonam; Saharan, Baljeet Singh; Tripathi, Neha Mani; Aseri, Gajender Kumar; Sharma, Deepansh; Joshi, Sanket

doi:10.1007/s12010-022-04261-4

Cited by 9 publications

(1 citation statement)

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“…Finally, biofouling is an important factor behind the higher operation costs of the MBRs due to the need for frequent shut-downs for cleaning of the foulants and/or replacements of the membrane [ 17 ]. To provide more cost-effective operating and cleaning strategies, the development of model-based predictive solutions of the MBR process is an important area in the past few years [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Prolonging the Life Span of Membrane in Submerged MBR by the Application of Different Anti-Biofouling Techniques

et al. 2023

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The membrane bioreactor (MBR) is an efficient technology for the treatment of municipal and industrial wastewater for the last two decades. It is a single stage process with smaller footprints and a higher removal efficiency of organic compounds compared with the conventional activated sludge process. However, the major drawback of the MBR is membrane biofouling which decreases the life span of the membrane and automatically increases the operational cost. This review is exploring different anti-biofouling techniques of the state-of-the-art, i.e., quorum quenching (QQ) and model-based approaches. The former is a relatively recent strategy used to mitigate biofouling. It disrupts the cell-to-cell communication of bacteria responsible for biofouling in the sludge. For example, the two strains of bacteria Rhodococcus sp. BH4 and Pseudomonas putida are very effective in the disruption of quorum sensing (QS). Thus, they are recognized as useful QQ bacteria. Furthermore, the model-based anti-fouling strategies are also very promising in preventing biofouling at very early stages of initialization. Nevertheless, biofouling is an extremely complex phenomenon and the influence of various parameters whether physical or biological on its development is not completely understood. Advancing digital technologies, combined with novel Big Data analytics and optimization techniques offer great opportunities for creating intelligent systems that can effectively address the challenges of MBR biofouling.

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Section: Introductionmentioning

confidence: 99%