Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.7
3.7
Journals
Fermentation
Special Issues
Treatment of Municipal Wastewater by Anaerobic Biotechnology
share announcement

Treatment of Municipal Wastewater by Anaerobic Biotechnology

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Industrial Fermentation".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 2888

Special Issue Editors

Dr. Zechong Guo

E-Mail Website
Guest Editor
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
Interests: organic wastewater; anaerobic biotechnology for solid waste recycling; microbial electrochemical assisted anaerobic digestion treatment technology
Dr. Minhua Cui

E-Mail Website
Guest Editor
School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
Interests: wastewater/water treatment; nioelectrochemical system; electrochemcial degradation of pollution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Municipal wastewater treatment is a constant concern for both researchers and engineers. Numerous processes have been developed or upgraded to meet the increasingly stringent pollution control requirement around the world, which usually takes aerobic technologies as the core and removes pollutants from the wastewater with huge energy costs. Recently, the traditional approach is being challenged by the growing climate problems and rising energy prices, and a new consensus is emerging based on the concept of sustainability: wastewater is a potential resource rather than a mere pollutant.

Anaerobic biotechnologies, with anaerobic digestion as a typical example, are able to remove pollutants or convert them into high-value-added products (including both biofuels and chemicals) at relatively low energy costs. Now, the application scope and theoretical understanding of anaerobic biotechnologies are expanding, and various novel technologies (such as anerobic membrane bioreactor, anaerobic ammonia oxidation, and anaerobic electrochemical technology) are developing, which provide promising options for efficient wastewater treatment and energy/resource recovery.

The goal of this Special Issue is to publish both recent innovative research results and review papers on the anaerobic biotechnology that can realize energy (in the form of methane, hydrogen, electricity, etc.) and resource (nitrogen, phosphorus, PHA, VFAs, etc.) recovery from municipal wastewater or its correlatives (such as waste-activated sludge). Review and research papers on the development of low-carbon or energy-neutral wastewater treatment systems based on anaerobic biotechnologies are also of great interest. If you would like to contribute a review paper, please contact one of the editors to discuss the topic’s relevance before submitting the manuscript.

Sincerely,
Dr. Zechong Guo
Dr. Minhua Cui
Guest Editors

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.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fermentation is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • municipal wastewater
  • waste activated sludge
  • anaerobic digestion
  • energy recovery
  • resource recovery
  • carbon neutralization
  • anerobic membrane bioreactor
  • microbial electrochemical system

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

13 pages, 2061 KiB  
Article
Enhanced Methanogenesis of Waste-Activated Sludge (WAS) in a Continuous Stirring Tank Reactor with Stealth Electrodes
by Wen He, Dahai Zhang, Lu Zhang, Zhuanyi Ai, Zechong Guo, Tongyi Yang, Linzhi Zhai and Cheng Huang
Fermentation 2024, 10(3), 158; https://doi.org/10.3390/fermentation10030158 - 10 Mar 2024
Viewed by 1064
Abstract
The integration of a microbial electrolysis cell (MEC) is an effective strategy for enhancing the efficiency and stability of an anaerobic digestion (AD) system for energy recovery from waste-activated sludge (WAS). Typically, electrodes are arranged as separate components, potentially disrupting mixing and complicating [...] Read more.
The integration of a microbial electrolysis cell (MEC) is an effective strategy for enhancing the efficiency and stability of an anaerobic digestion (AD) system for energy recovery from waste-activated sludge (WAS). Typically, electrodes are arranged as separate components, potentially disrupting mixing and complicating the reactor configuration, posing challenges for the scaling up of AD-MEC coupling systems. In this study, electrodes were introduced into a continuous stirring tank reactor (CSTR) in a “stealth” manner by integrating them with the inner wall and stirring paddle. This electrode arrangement approach was validated through a sequential batch digestion experiment, resulting in a remarkable 1.5-fold increase in cumulative methane production and a shortened lag period compared to the traditional CSTR with a nonconductive inner wall and stirring paddle. Both the conductive materials (CMs) employed in the electrodes and the electrochemical processes equally contributed to the observed enhancement effect of the electrodes by regulating the evolution of the microbial community within the electrode biofilms, with a specific emphasis on the enrichment of methanogens (primarily Methanobacterium). This research offers a potential avenue to solve the contradiction between the electrode introduction and the mixing operation in AD-MEC coupling systems and to contribute to its future commercial application. Full article
(This article belongs to the Special Issue Treatment of Municipal Wastewater by Anaerobic Biotechnology)
►▼ Show Figures

Figure 1

13 pages, 8561 KiB  
Article
The Microbial Communities of Anaerobic Respiration and Fermentation Degrading Chitin Exist in the Anaerobic Sludge of Microbial Fuel Cell Anodes
by Sheng-Hu Zhen, Yang-Yang Yu, Rong-Rong Xie, Wei Xu and Shan-Wei Li
Fermentation 2023, 9(11), 983; https://doi.org/10.3390/fermentation9110983 - 17 Nov 2023
Viewed by 1205
Abstract
Chitin is one of the most abundant polymers in nature, with chitinous biomass often discarded as food waste and marine debris. To explore an effective way to degrade chitin, in this work, anaerobic sludge was inoculated at the anode of a two-chamber microbial [...] Read more.
Chitin is one of the most abundant polymers in nature, with chitinous biomass often discarded as food waste and marine debris. To explore an effective way to degrade chitin, in this work, anaerobic sludge was inoculated at the anode of a two-chamber microbial fuel cell (MFC), and chitin was degraded via anaerobic respiration and fermentation. The results showed that the anaerobic sludge could degrade chitin under both the anaerobic respiration and fermentation modes, with similar degradation rates (7.10 ± 0.96 and 6.96 ± 0.23 C-mg/L·d−1). The open-circuit voltage and output current density could roughly reflect the degradation of chitin in the MFC. The maximum current density generated through the anaerobic sludge degradation of chitin via anaerobic respiration was 160 mA/m2, and the maximum power density was 26.29 mW/m2. The microbial sequencing results revealed substantially different microbial community profiles, with electroactive bacteria (EAB) flora and fermentative bacteria (Longilinea) as the main microbial groups that degraded chitin via anaerobic respiration and fermentation, respectively. Therefore, anaerobic sludge may be a good choice for the treatment of refractory biomass due to its abundant electroactive and fermentative flora. Full article
(This article belongs to the Special Issue Treatment of Municipal Wastewater by Anaerobic Biotechnology)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop