The effect of different static biocarriers on process performance, membrane fouling and microbial community in submerged membrane bioreactor treating municipal wastewater under high and low carbon/nitrogen ratios

Wang, K.M.; Shen, Yizhou; Jiang, S.F.; Qiu, Zhiwei; Zhou, Jiaheng; Wang, H.Y.

doi:10.1016/j.jwpe.2022.102709

Cited by 4 publications

(1 citation statement)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chen Fu et al, (2015) reported that biocarriers reduced biopolymers by 58.8% and contaminants with low molecular weight contaminants by 15.6% compared with conventional MBR systems [ 114 ]. The cake layer and pore-blocking resistance can be reduced significantly by biocarriers, which makes biocarriers a bright possibility for membrane-fouling control [ 115 , 116 ].…”

Section: Monitoring and Control Of The Mbr Processmentioning

confidence: 99%

The Advancement in Membrane Bioreactor (MBR) Technology toward Sustainable Industrial Wastewater Management

et al. 2023

View full text Add to dashboard Cite

The advancement in water treatment technology has revolutionized the progress of membrane bioreactor (MBR) technology in the modern era. The large space requirement, low efficiency, and high cost of the traditional activated sludge process have given the necessary space for the MBR system to come into action. The conventional activated sludge (CAS) process and tertiary filtration can be replaced by immersed and side-stream MBR. This article outlines the historical advancement of the MBR process in the treatment of industrial and municipal wastewaters. The structural features and design parameters of MBR, e.g., membrane surface properties, permeate flux, retention time, pH, alkalinity, temperature, cleaning frequency, etc., highly influence the efficiency of the MBR process. The submerged MBR can handle lower permeate flux (requires less power), whereas the side-stream MBR can handle higher permeate flux (requires more power). However, MBR has some operational issues with conventional water treatment technologies. The quality of sludge, equipment requirements, and fouling are major drawbacks of the MBR process. This review paper also deals with the approach to address these constraints. However, given the energy limitations, climatic changes, and resource depletion, conventional wastewater treatment systems face significant obstacles. When compared with CAS, MBR has better permeate quality, simpler operational management, and a reduced footprint requirement. Thus, for sustainable water treatment, MBR can be an efficient tool.

show abstract

Section: Monitoring and Control Of The Mbr Processmentioning

confidence: 99%

The Advancement in Membrane Bioreactor (MBR) Technology toward Sustainable Industrial Wastewater Management

et al. 2023

View full text Add to dashboard Cite

show abstract

Microbial electrochemical Cr(VI) reduction in a soil continuous flow system

Beretta,

Sangalli,

Sezenna

et al. 2024

Integr Envir Assess & Manag

View full text Add to dashboard Cite

Microbial electrochemical technologies represent innovative approaches to contaminated soil and groundwater remediation and provide a flexible framework for removing organic and inorganic contaminants by integrating electrochemical and biological techniques. To simulate in situ microbial electrochemical treatment of groundwater plumes, this study investigates Cr(VI) reduction within a bioelectrochemical continuous flow (BECF) system equipped with soil‐buried electrodes, comparing it to abiotic and open‐circuit controls. Continuous‐flow systems were tested with two chromium‐contaminated solutions (20–50 mg Cr(VI)/L). Additional nutrients, buffers, or organic substrates were introduced during the tests in the systems. With an initial Cr(VI) concentration of 20 mg/L, 1.00 mg Cr(VI)/(L day) bioelectrochemical removal rate in the BECF system was observed, corresponding to 99.5% removal within nine days. At the end of the test with 50 mg Cr(VI)/L (156 days), the residual Cr(VI) dissolved concentration was two orders of magnitude lower than that in the open circuit control, achieving 99.9% bioelectrochemical removal in the BECF. Bacteria belonging to the orders Solirubrobacteriales, Gaiellales, Bacillales, Gemmatimonadales, and Propionibacteriales characterized the bacterial communities identified in soil samples; differently, Burkholderiales, Mycobacteriales, Cytophagales, Rhizobiales, and Caulobacterales characterized the planktonic bacterial communities. The complexity of the microbial community structure suggests the involvement of different microorganisms and strategies in the bioelectrochemical removal of chromium. In the absence of organic carbon, microbial electrochemical removal of hexavalent chromium was found to be the most efficient way to remove Cr(VI), and it may represent an innovative and sustainable approach for soil and groundwater remediation. Integr Environ Assess Manag 2024;00:1–17. © 2024 The Author(s). Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).

show abstract

Alleviated membrane fouling of corundum ceramic membrane in MBR: As compared with alumina membrane

Tian¹,

Pan²,

Bai³

et al. 2022

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

The effect of different static biocarriers on process performance, membrane fouling and microbial community in submerged membrane bioreactor treating municipal wastewater under high and low carbon/nitrogen ratios

Cited by 4 publications

References 53 publications

The Advancement in Membrane Bioreactor (MBR) Technology toward Sustainable Industrial Wastewater Management

The Advancement in Membrane Bioreactor (MBR) Technology toward Sustainable Industrial Wastewater Management

Microbial electrochemical Cr(VI) reduction in a soil continuous flow system

Alleviated membrane fouling of corundum ceramic membrane in MBR: As compared with alumina membrane

Contact Info

Product

Resources

About