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Advances in Anaerobic Digestion
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Advances in Anaerobic Digestion

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 (30 April 2020) | Viewed by 10697

Special Issue Editor

Dr. Yawei Wang

E-Mail Website
Guest Editor
Water pollution control technology department, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, China, 100085
Interests: sewage sludge and manure treatment; anaerobic treatment; surface water quality; public health management

Special Issue Information

Dear Colleagues,

Anaerobic digestion (AD) is a successful approach for biowaste (sewage, sludge, manure or agro waste, food waste, etc.) management. It offers many environmental and economic benefits, such as the generation of renewable energy, nutrients, soil amendments, alcohol, volatile fatty acids (VFAs), and other valuable materials.

The challenges for next-generation AD include better performance (faster start-up, lower effluent concentration, etc.), more economic and sustainable operation (resource recovery and lower footprint), wider application scenarios (low organic concentration, lower temperature, or high solids). New targets and new research tools (e.g., computer sciences and molecular biotechnology) are also drivers for the development of new technology.

This Special Issue seeks research papers on various aspects of (1) novel technology, especially for resource recovery or high-rate reactors;(2) pilot and full-scale application of anaerobic treatment, and their economic performance;(3) environmental impact and health-related problems, micropollutants or antimicrobials biotransformation;(4) IT-related applications in anaerobic treatment, such as modeling, automation control, meta-analysis, big data, etc.

We welcome interdisciplinary work and also encourage the submission of mechanisms of novel technology.

Dr. Yawei Wang
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.

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

  • low cost/pre-treatment/post-treatment/high rate/resource recovery
  • full-scale/economic performance
  • health systems and health policy/ARG
  • anaerobic modeling/automation control/information technology

Published Papers (3 papers)

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Research

11 pages, 3390 KiB  
Article
Treatment of Metformin-Containing Wastewater by a Hybrid Vertical Anaerobic Biofilm-Reactor (HyVAB)
by Eshetu Janka, Diego Carvajal, Shuai Wang, Rune Bakke and Carlos Dinamarca
Int. J. Environ. Res. Public Health 2019, 16(21), 4125; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16214125 - 25 Oct 2019
Cited by 9 | Viewed by 3528
Abstract
Several series of batch and continuous experiments were performed to investigate the removal of metformin and other contaminants from two wastewaters: wastewater I (WWI) containing 4 mg/L metformin and wastewater II (WWII) containing 110 g/L butanol. Biomethane potential (BMP) tests on WWII showed [...] Read more.
Several series of batch and continuous experiments were performed to investigate the removal of metformin and other contaminants from two wastewaters: wastewater I (WWI) containing 4 mg/L metformin and wastewater II (WWII) containing 110 g/L butanol. Biomethane potential (BMP) tests on WWII showed 77% of total chemical oxygen demand (tCOD = 110 g/L) degradability, and no apparent inhibition effects were observed. BMP tests on WWI showed an apparent inhibitory effect reflected in lower biogas production with increasing metformin concentration in the wastewater. Continuous flow hybrid vertical anaerobic biofilm (HyVAB®) experiments were consistent with the batch test findings. It was necessary to co-digest WWI (metformin) with WWII (easily degradable organics) to achieve complete metformin removal. After a period of adaptation, WWI and WWII co-digestion achieved up to 98% tCOD removal and 100% metformin removal. Most of the contaminants were removed in the anaerobic section of the HyVAB®, which implies that higher chemical oxygen demand (COD) loads than tested here are possible, given some optimization. The pilot reactor was able to manage organic loads of 11 g COD/d and above 10 mg/L metformin with a removal of 98% and 100% for tCOD and metformin, respectively. Full article
(This article belongs to the Special Issue Advances in Anaerobic Digestion)
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17 pages, 3082 KiB  
Article
Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates
by Fei Wang, Mengfu Pei, Ling Qiu, Yiqing Yao, Congguang Zhang and Hong Qiang
Int. J. Environ. Res. Public Health 2019, 16(12), 2239; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16122239 - 25 Jun 2019
Cited by 35 | Viewed by 4606
Abstract
Poultry manure is the main source of agricultural and rural non-point source pollution, and its effective disposal through anaerobic digestion (AD) is of great significance; meanwhile, the high nitrogen content of chicken manure makes it a typical feedstock for anaerobic digestion. The performance [...] Read more.
Poultry manure is the main source of agricultural and rural non-point source pollution, and its effective disposal through anaerobic digestion (AD) is of great significance; meanwhile, the high nitrogen content of chicken manure makes it a typical feedstock for anaerobic digestion. The performance of chicken-manure-based AD at gradient organic loading rates (OLRs) in a continuous stirred tank reactor (CSTR) was investigated herein. The whole AD process was divided into five stages according to different OLRs, and it lasted for 150 days. The results showed that the biogas yield increased with increasing OLR, which was based on the volatile solids (VS), before reaching up to 11.5 g VS/(L·d), while the methane content was kept relatively stable and maintained at approximately 60%. However, when the VS was further increased to 11.5 g VS/(L·d), the total ammonia nitrogen (TAN), pH, and alkalinity (CaCO3) rose to 2560 mg·L−1, 8.2, and 15,000 mg·L−1, respectively, while the volumetric biogas production rate (VBPR), methane content, and VS removal efficiency decreased to 0.30 L·(L·d)−1, 45%, and 40%, respectively. Therefore, the AD performance immediately deteriorated and ammonia inhibition occurred. Further analysis demonstrated that the microbial biomass yield and concentrations dropped dramatically in this period. These results indicated that the AD stayed steady when the OLR was lower than 11.5 g VS/(L·d); this also provides valuable information for improving the efficiency and stability of AD of a nitrogen-rich substrate. Full article
(This article belongs to the Special Issue Advances in Anaerobic Digestion)
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11 pages, 2153 KiB  
Article
The Evaluation of Indicators Used to Assess the Suitability of Agricultural Waste for Fermentation
by Monika Suchowska-Kisielewicz and Andrzej Jędrczak
Int. J. Environ. Res. Public Health 2019, 16(11), 1889; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16111889 - 28 May 2019
Cited by 5 | Viewed by 2153
Abstract
To ensure high fermentation efficiency, it is necessary to assess the biodegradability of a substrate. These parameters are most often determined on the basis of the amount of loss on ignition and total organic carbon. We are more and more often using chemical [...] Read more.
To ensure high fermentation efficiency, it is necessary to assess the biodegradability of a substrate. These parameters are most often determined on the basis of the amount of loss on ignition and total organic carbon. We are more and more often using chemical indices. However, these indices do not provide information on how much an organic substance is susceptible to biodegradation. The actual assessment of the content of easily biodegradable matter in substrates that are used for fermentation should be performed on the basis of aerobic (AT4) and anaerobic tests (BMP), which require specialised equipment and are time consuming. The AT4 index is being more and more frequently adopted for the analysis of substrates that are used in the fermentation process, because AT4 takes a much shorter time than BMP and provides information on the biodegradability of substrates. The aim of the article is to answer the question of whether the AT4 parameter can be used to assess the suitability of the substrate from the agricultural sector for the fermentation process. The results show that the AT4 index could be used instead of the BMP parameter. Full article
(This article belongs to the Special Issue Advances in Anaerobic Digestion)
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