Advances in Membrane Processes for Wastewater Treatment

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications for Water Treatment".

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 1691

Special Issue Editor


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Guest Editor
Department of Civil Engineering, Federal University of Viçosa, Av. P.H Rolfs, s/n, Campus UFV, Viçosa, Minas Gerais 36570-900, Brazil
Interests: water and wastewater quality and treatment; water purification technologies

Special Issue Information

Dear Colleagues,

It is currently accepted that domestic and industrial wastewater discharge is one the main sources of micropollutants in surface waters, and conventional treatment processes present variable removal efficiencies for these substances. Advanced treatment using membrane processes may be one of the best options to improve wastewater quality before its release to the aquatic environment. This Special Issue is focused on membrane processes for wastewater treatment, with a focus on micropollutant removal. Aspects that could be considered include the choice of membrane configurations and materials, operating conditions and challenges (e.g., fouling control), treatment efficiencies, the applicability to different types of wastewaters (e.g., micropollutant class versus removal potential), combined treatment processes made viable through membrane use, the potential for the (non-potable) reuse of treated wastewaters, and the economic analysis of membrane processes.

Dr. Ann H. Mounteer
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Keywords

  • membrane process
  • wastewater treatment
  • micropollutants removal
  • reuse
  • cost analysis

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Published Papers (1 paper)

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Research

15 pages, 21980 KiB  
Article
The Performance and Spatial Distribution of Membrane Fouling in a Sequencing Batch Ceramic Membrane Bioreactor: A Pilot Study for Swine Wastewater Treatment
by Wenhui Yue, Yanlin Chen, Qianwen Sui, Libing Zheng, Tharindu Ritigala and Yuansong Wei
Membranes 2024, 14(6), 142; https://doi.org/10.3390/membranes14060142 - 18 Jun 2024
Cited by 1 | Viewed by 1313
Abstract
The extensive application of ceramic membranes in wastewater treatment draws increasing attention due to their ultra-long service life. A cost-effective treatment for high-strength swine wastewater is an urgent and current need that is a worldwide challenge. A pilot-scale sequencing batch flat-sheet ceramic membrane [...] Read more.
The extensive application of ceramic membranes in wastewater treatment draws increasing attention due to their ultra-long service life. A cost-effective treatment for high-strength swine wastewater is an urgent and current need that is a worldwide challenge. A pilot-scale sequencing batch flat-sheet ceramic membrane bioreactor (ScMBR) coupled with a short-cut biological nitrogen removal (SBNR) process was developed to treat high-strength swine wastewater. The ScMBR achieved stable and excellent removal of COD (95.3%), NH4+-N (98.3%), and TN (92.7%), though temperature went down from 20 °C, to 15 °C, to 10 °C stepwise along three operational phases. The COD and NH4+-N concentrations in the effluent met with the discharge standards (GB18596-2001). Microbial community diversity was high, and the genera Pseudomonas and Comamonas were dominant in denitritation, and Nitrosomonas was dominant in nitritation. Ceramic membrane modules of this pilot-scale reactor were separated into six layers (A, B, C, D, E, F) from top to bottom. The total filtration resistance of both the top and bottom membrane modules was relatively low, and the resistance of the middle ones was high. These results indicate that the spatial distribution of the membrane fouling degree was different, related to different aeration scour intensities demonstrated by computational fluid dynamics (CFD). The results prove that the membrane fouling mechanism can be attributed to the cake layer formation of the middle modules and pore blocking of the top and bottom modules, which mainly consist of protein and carbohydrates. Therefore, different cleaning measures should be adopted for membrane modules in different positions. In this study, the efficient treatment of swine wastewater shows that the ScMBR system could be applied to high-strength wastewater. Furthermore, the spatial distribution characteristics of membrane fouling contribute to cleaning strategy formulation for further full-scale MBR applications. Full article
(This article belongs to the Special Issue Advances in Membrane Processes for Wastewater Treatment)
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