Review
Green & Sustainable Science & Technology
Shaokun Song, Maneesha P. Ginige, Ka Yu Cheng, Tianhao Qie, Christopher S. Peacock, Anna H. Kaksonen
Summary: The distribution of biogas in headspace and gas collection devices is often assumed to be identical in batch experiments for evaluating biohydrogen potential. However, this assumption has been examined for the first time and a model for biogas distribution has been developed and validated. The results showed a difference of 5% to 30% in biogas concentration between headspace and gas collection unit. This measurement error in batch experiments has led to inaccurate reporting of biohydrogen purity and negative impacts on industry operations and regulatory compliance.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Sanjay K. S. Patel, Devashish Das, Sun Chang Kim, Byung-Kwan Cho, Vipin Chandra Kalia, Jung-Kul Lee
Summary: The inefficient waste management and associated environmental pollution deplete precious renewable resources and have negative impacts on human health and the global economy. By utilizing microbial anaerobic digestion, organic matter can be metabolized into energy-rich methane and carbon dioxide, producing eco-friendly and biodegradable value-added products. Despite some challenges, integrating different processes for H2 production and waste management could lead to a sustainable economy transition.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Environmental Sciences
G. Trancone, D. Spasiano, M. Race, V Luongo, A. Petrella, F. Pirozzi, U. Fratino, A. F. Piccinni
Summary: This study evaluates the efficiency of mesophilic and thermophilic dark fermentation (DF) using glucose as the substrate for the biological treatment of asbestos cement waste (ACW). The results show that both types of fermentation partially convert glucose into organic acids, successfully degrading asbestos fibers and producing hydrogen-rich biogas.
Article
Green & Sustainable Science & Technology
Jiangbo Li, Kai Wang, Shaojie Wang, Haijia Su
Summary: This study developed spatially-ordered layer-by-layer biofilms to enhance the cooperation efficiency between two strains and achieved a significant increase in hydrogen production compared to suspended fermentation and mixed biofilms. By optimizing the mixed ratios of the two strains, the highest hydrogen accumulation was obtained at an inoculation volume ratio of A1:B1 = 1:1. Furthermore, the biofilm system showed stable hydrogen production performance during 5 repeat batches of fermentation.
Article
Agricultural Engineering
Peiqi Cui, Shaojie Wang, Haijia Su
Summary: Fe3O4 nanoparticles modified Aspergillus tubingensis mycelial pellets-based anaerobic granular sludge (Fe3O4@AT-AGS) was developed to improve the catalytic efficiency and stability of hydrogen-producing bacteria (HPB). The Fe3O4@AT-AGS protected flora and increased flora diversity and stability. The porous structure promoted the transfer from lactate-producing bacteria (LPB) to HPB. The Fe3O4@AT-AGS significantly enhanced the abundance, dehydrogenase activity, and stability of HPB.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Dong Xiao, Hailun He, Xiaoxin Yan, Norberto Daniel Diaz, Dayong Chen, Jing Ma, Yidong Zhang, Jin Li, Mohamed Keita, Essono Oyono Julien, Xiaotao Yan
Summary: This study examined the impact and mechanisms of antibiotics on biohydrogen production. The experiments showed that most antibiotics inhibited H2 production, while some antibiotics actually promoted it. The main inhibitory mechanisms were board-spectrum inhibition, partial inhibition, and enhanced H2 consumption. The enhancement mechanisms included promoting the growth of H2-producing bacteria, enhancing starch hydrolysis, and inhibiting H2 consumption or acid inhibition. The effect of antibiotics on H2 production was not only dependent on the type but also on the dosage.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Physical
Marina Tomasini, Mariana De Oliveira Faber, Viridiana Santana Ferreira-Leitao
Summary: Sugarcane straw is not effectively utilized in the industry currently, but sugarcane straw hemicellulose hydrolyzate (HH) shows promise as a raw material for H2 and CH4 production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Microbiology
Luke M. G. Saye, Tejas A. Navaratna, James P. J. Chong, Michelle A. O'Malley, Michael K. Theodorou, Matthew Reilly
Summary: Lignocellulose is a promising feedstock for biofuel production, but pretreatments are needed to overcome its natural recalcitrance. Anaerobic fungi have potential for biofuel production due to their effective ability to hydrolyse lignocellulose and convert it to H-2 and ethanol, as well as produce volatile fatty acid precursors for further conversion.
Article
Green & Sustainable Science & Technology
Sheng-Jie Chen, Xiong Chen, Bin-Bin Hu, Ming-Yang Wei, Ming-Jun Zhu
Summary: In this research, a thermophilic Clostridiales consortium was enriched with pretreated sugarcane bagasse (PSCB), and its hydrogen production was greatly improved through two-step strengthening. Firstly, food waste was added to optimize C/N ratio of substrate, and secondly, Fe-Mn impregnated biochars were supplemented to further enhance hydrogen production. The increased hydrogen production was attributed to the increased relative abundances of dominant hydrogenogen and the enhanced substrate degradation and carbon metabolism facilitated by Fe-Mn impregnated biochars.
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Article
Microbiology
Linde F. C. Kampers, Jasper J. Koehorst, Ruben J. A. van Heck, Maria Suarez-Diez, Alfons J. M. Stams, Peter J. Schaap
Summary: A rational design for a P. putida KT2440 derivative strain capable of anaerobic respiration was developed using a data-driven approach, requiring the addition of at least 49 known genes, 8 genes encoding proteins of unknown function, and 3 externally added vitamins.
Review
Chemistry, Physical
Jianlong Wang, Yanan Yin
Summary: Clostridium species play a significant role in dark fermentative hydrogen production, with high hydrogen yield and wide substrate range, although efforts are still needed to ensure efficient and stable operation of the system and economic applicability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Basem Haroun, Gholamreza Bahreini, Masuduz Zaman, Eunkyung Jang, Frances Okoye, Elsayed Elbeshbishy, Domenico Santoro, John Walton, Ahmed Al-Omari, Chris Muller, Kati Bell, George Nakhla
Summary: This study assessed the feasibility of a novel vacuum-enhanced anaerobic digestion technology, which can increase the production of volatile fatty acids (VFA) and hydrolysis products without adversely affecting the activity of fermentative bacteria and methanogens.
Review
Green & Sustainable Science & Technology
Anitha Thulasisingh, Krithika Ananthakrishnan, Janani Nandakumar, Sathishkumar Kannaiyan
Summary: There is a growing emphasis on renewable energy sources, specifically biohydrogen, as a promising alternative to fossil fuel-based energy. This review article explores different methods of biohydrogen production from wastewater using microorganisms. It discusses the biochemical pathways, microorganisms employed, pretreatment techniques, and efficiency of biohydrogen production from various wastewater sources. The review also highlights the importance of pretreatment methods, as well as factors such as pH, temperature, and organic loading rate that can influence hydrogen production. It concludes by addressing the advantages, drawbacks, and potential advancements in biohydrogen production.
CLEAN-SOIL AIR WATER
(2023)
Article
Engineering, Environmental
Zhen Li, Anran Fang, Han Cui, Jie Ding, Bingfeng Liu, Guojun Xie, Nanqi Ren, Defeng Xing
Summary: The research reveals that cross-feeding interactions between Ethanoligenens harbinense and Geobacter sulfurreducens in microbial electrolysis cells can enhance hydrogen production and improve substrate conversion efficiency, offering an effective strategy to increase energy recovery from wastes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)