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Advanced Biotechnologies and Bioprocesses for Sustainable Waste(water) Management

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 5137

Special Issue Editors


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Guest Editor
Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
Interests: anammox; denitrification; anaerobic digestion; sludge fermentation; biological nitrogen removal; carbon neutrality
Special Issues, Collections and Topics in MDPI journals
1. Water Chemistry and Water Technology, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
2. Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
Interests: biological nutrients removal; municipal wastewater treatment; anammox; nitritation; partial denitrification; biofilm; resource and energy recovery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent decades have witnessed rapid urbanization and population growth worldwide, bringing serious environmental issues regarding the huge amounts of wastes and wastewaters being produced, which pose a great threat to human health. Various methods, including physical, chemical, and biological, have been devised to manage those “wastes”; among these, much effort has been spent on biotechnologies that make use of microbes to degrade pollutants due to their relatively high economic advantage. However, the operation cost involved in these bioprocesses is still high and usually accompanied with byproduct generation. For example, the traditional nitrification/denitrification process that is widely applied for municipal wastewater treatment requires a substantial amount of energy for aerobic nitrification and external organics for denitrification; meanwhile, a large quantity of waste-activated sludge and greenhouse gases (e.g., CO2, N2O) are produced. More recently, the concept of carbon neutrality was proposed to cope with climate change, and many governments have set a clear schedule to achieve this goal. The management of the wastes and wastewaters should therefore be more cost-effective and environment-friendly with a great level of sustainability. 
 
This Special Issue will focus on advanced biotechnologies and bioprocesses for sustainable waste(water) management. We welcome novel research and review manuscripts covering all related topics, including but not limited to the following:

  • Innovative biotechnologies for wastewater treatment (e.g., anammox-based processes);
  • New techniques for solid waste energy/resource recovery and management;
  • Integrated process design, optimization, control, and scale-up studies;
  • Greenhouse gas emission (e.g., N2O) and mitigation strategy;
  • Sustainability and life cycle assessment (LCA).

Dr. Shenbin Cao
Dr. Rui Du
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. International Journal of Environmental Research and Public Health 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 2500 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

  • innovative biotechnologies for wastewater treatment (e.g., anammox-based processes)
  • new techniques for solid waste energy/resource recovery and management
  • integrated process design, optimization, control, and scale-up studies
  • greenhouse gas emission (e.g., N2O) and mitigation strategy
  • sustainability and life cycle assessment (LCA)

Published Papers (3 papers)

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Research

15 pages, 1305 KiB  
Article
Effect of Different Acid and Base Potassium Ferrate Pretreatment on Organic Acid Recovery by Anaerobic Digestion of Sludge
by Mengjia Tian, Feng Liu, Jiawen Guo, Wei Li, Mao Zhang and Xiang Li
Int. J. Environ. Res. Public Health 2022, 19(22), 15093; https://doi.org/10.3390/ijerph192215093 - 16 Nov 2022
Cited by 3 | Viewed by 1294
Abstract
Potassium ferrate has strong oxidation in both acid and alkali environments, which has attracted extensive attention. However, the impact of the pH environment on this coupling process with the goal of resource recovery has not received attention. Under the goal of the efficient [...] Read more.
Potassium ferrate has strong oxidation in both acid and alkali environments, which has attracted extensive attention. However, the impact of the pH environment on this coupling process with the goal of resource recovery has not received attention. Under the goal of the efficient recovery of organic acid, the changes of solid–liquid characteristics of sludge after acid and alkaline ferrate pretreatment and during anaerobic digestion were discussed. The results showed that compared with blank control groups, after alkaline ferrate pretreatment, the volatile suspended solids (VSSs) decreased the most, reaching 28.19%. After being pretreated with alkaline ferrate, the sludge showed the maximum VFA accumulation (408.21 COD/g VSS) on the third day of digestion, which was 1.34 times higher than that of the acid ferrate pretreatment. Especially in an alkaline environment, there is no need to add additional alkaline substances to adjust the pH value, and the effect of sludge reduction and acid production is the best. Full article
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14 pages, 3454 KiB  
Article
Insight into Greenhouse Gases Emissions and Energy Consumption of Different Full-Scale Wastewater Treatment Plants via ECAM Tool
by Yuhe Tian, Shuang Liu, Zheng Guo, Nan Wu, Jiaqi Liang, Ruihua Zhao, Linlin Hao and Ming Zeng
Int. J. Environ. Res. Public Health 2022, 19(20), 13387; https://doi.org/10.3390/ijerph192013387 - 17 Oct 2022
Cited by 2 | Viewed by 1431
Abstract
Greenhouse gas (GHG) production is one of the urgent problems to be solved in the wastewater treatment industry in the context of “carbon neutrality”. In this study, the carbon emissions and energy consumption of typical wastewater treatment processes in China were evaluated, starting [...] Read more.
Greenhouse gas (GHG) production is one of the urgent problems to be solved in the wastewater treatment industry in the context of “carbon neutrality”. In this study, the carbon emissions and energy consumption of typical wastewater treatment processes in China were evaluated, starting from different cities and water treatment plants. Tool of Energy Performance and Carbon Emission Assessment and Monitoring (ECAM) was used. By comparing the influent BOD5, it was found that the energy consumption for wastewater treatment was positively correlated with the influent organic load. The annual CH4 emission of Xi’an WWTP can reach 19,215 t CO2eq. Moreover, GHGs are closely related to the wastewater treatment process chosen. WWTP B of Kunming used only an anaerobic process without continuous aeration, with an average monthly energy consumption of 8.63 × 105 kW·h. The proportion of recoverable biogas was about 90% in the GHG discharged by the traditional process. However, the anaerobic digestion-thermoelectric cogeneration process can make the recovery of the biogas utilization ratio reach 100%. Compared to the Shuozhou WWTP and WWTP A of Kunming, the Strass WWTP served the smallest population and had the largest treatment capacity, reaching the lowest energy consumption, consuming only 23,670 kW·h per month. The evaluation and analysis of ECAM provide data support and research foundation for the wastewater treatment plants to improve energy utilization and reduce greenhouse gas emissions. Full article
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11 pages, 1311 KiB  
Article
Succession of Microbial Community during the Co-Composting of Food Waste Digestate and Garden Waste
by Xiaohan Wang, Xiaoli He and Jing Liang
Int. J. Environ. Res. Public Health 2022, 19(16), 9945; https://doi.org/10.3390/ijerph19169945 - 12 Aug 2022
Cited by 8 | Viewed by 1819
Abstract
Microorganisms are of critical importance during the composting process. The aim of this study was to reveal the bacterial and fungal compositions of a composting pile of food waste digestate and garden waste, where the succession of the microbial communities was monitored using [...] Read more.
Microorganisms are of critical importance during the composting process. The aim of this study was to reveal the bacterial and fungal compositions of a composting pile of food waste digestate and garden waste, where the succession of the microbial communities was monitored using Illumina MiSeq sequencing. We explored the efficiency of composting of different microorganisms to judge whether the composting system was running successfully. The results showed that the composting process significantly changed the bacterial and fungal structure. Firmicutes, Proteobacteria, and Bacteroidota were the dominant phyla of the bacterial communities, while Ascomycota was the dominant phylum of the fungal communities. Moreover, the highest bacterial and fungal biodiversity occurred in the thermophilic stage. The physical and chemical properties of the final compost products conformed to the national standards of fertilizers. The efficient composting functional microbes, including Cladosporium, Bacillus and Saccharomonospora, emerged to be an important sign of a successfully operating composting system. Full article
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