Article
Green & Sustainable Science & Technology
F. Demichelis, T. Tommasi, F. A. Deorsola, D. Marchisio, D. Fino
Summary: This study evaluated the importance of inoculum in mesophilic anaerobic digestion (AD) and identified the optimal conditions for AD configuration through comparing different inocula, substrate: inoculum ratios, and incubation times.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Muhammad Sohail, Alam Khan, Malik Badshah, Allan Degen, Guo Yang, Hu Liu, Jianwei Zhou, Ruijun Long
Summary: This study reveals that yak rumen fluid as an inoculum can enhance the degradability of sheep manure and increase biogas production, with its key component being the abundant hydrolytic bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Marie-Noel Mansour, Thomas Lendormi, Lucie Drevillon, Amar Naji, Nicolas Louka, Richard G. Maroun, Zeina Hobaika, Jean-Louis Lanoiselle
Summary: Poultry wastes can be used as substrates for biogas production, but the high protein content leads to ammonia inhibition. Different substrates and inoculum sources affect the biochemical methane potential, and increasing the substrate-to-inoculum ratio decreases the hydrolysis constant. Liger is the most suitable inoculum source. Comparing organic laying hen droppings with slaughterhouse waste, slaughterhouse waste is more important in anaerobic digestion due to its high methane yield, especially from viscera. Methane production is affected by increasing ammonia concentrations.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yihang Xiao, Feixiang Zan, Weilan Zhang, Tianwei Hao
Summary: This study explored the feasibility and mechanism of adjusting the inoculum-to-substrate ratio (ISR) to improve the methane production from food waste (FW) with a low carbon/nitrogen (C/N) ratio. The results showed that the maximum methane yield was achieved at a C/N ratio of 11 and an ISR of 10:3. Increasing the ISR promoted methane production by enhancing acetoclastic methanogenesis and the hydrolysis of carbohydrates and proteins.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Georgeio Semaan, M. R. Atelge, Roent Dune Cayetano, Gopalakrishnan Kumar, Roald Kommedal
Summary: This study evaluates the conditions for assessing the biochemical methane potential of spent coffee grounds as a substrate, and finds that a substrate-to-inoculum ratio of 2 is not suitable for bio-CH4 production. Pretreatment with dilute acid and thermal has the potential to increase bio-CH4 yield, with significant effects observed for pretreatment time, acid concentration, and liquid-to-solid ratio. Fourier-transform infrared spectroscopy shows that major functional groups are still present in the coffee grounds after pretreatment.
Article
Green & Sustainable Science & Technology
Bhushan P. Gandhi, Saanu Victoria Otite, Esther A. Fofie, Alfonso Jose Lag-Brotons, Lawrence I. Ezemonye, Kirk T. Semple, Alastair D. Martin
Summary: This anaerobic digestion (AD) study examines the impact of inoculum to substrate ratio (ISR) on methanogenesis viability, revealing the acidification trend and biogas production variation under different ISR conditions.
Article
Environmental Sciences
K. Bella, P. Venkateswara Rao
Summary: The study investigated the improvement of anaerobic digestion of cheese whey waste and found that septage is an excellent co-substrate. The highest biogas production was achieved with cattle manure inoculated mixture at 60% whey fraction.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Yanzeng Li, Zhou Chen, Yanyan Peng, Weizhao Huang, Junxiao Liu, Vladimir Mironov, Shenghua Zhang
Summary: This study comprehensively explored the effects of different substrate to inoculum ratios (S/I) on the kinetic parameters, microbial communities, and metabolic pathways during the anaerobic digestion process of food waste. The results showed that low S/I ratios were favorable for methanogenesis, while high S/I ratios led to irreversible acidification. S/I = 1:3 had the highest methane yield, more apparent microbial cooperation, and the highest abundance of key enzymes involved in the methanogenesis pathway.
Article
Chemistry, Multidisciplinary
Roberta Mota-Panizio, Manuel Jesus Hermoso-Orzaez, Luis Carmo-Calado, Goncalo Lourinho, Paulo Sergio Duque de Brito
Summary: The study found that when digesting cork boiling wastewater (CBW), the biomethane potential is very low for Ino/CBW ratios of 1:1 and 2:1 compared to other organic substrates using digested sludge as inoculum; however, co-digestion with cow manure showed better biomethane yields.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Liwen Luo, Puiyan Chu, Jialin Liang, Davidraj Johnravindar, Jun Zhao, Jonathan W. C. Wong
Summary: This study explores the effect of biochar addition on methane production from food waste digestion. The results show that biochar significantly enhances methane production by stimulating methanogenic activity, improving organic waste removal, and enhancing process stability.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Fazel Ziaee, Nader Mokhtarani, Kasra Pourrostami Niavol
Summary: This study found that co-digestion of municipal solid waste and sawdust can improve methane production by adjusting the ratio and I/S ratio. Lower I/S ratios lead to fatty acid accumulation and acidic pH conditions. Increasing total solids content decreases biomethane yield while increasing biogas content.
Article
Environmental Sciences
G. Cazaudehore, R. Guyoneaud, A. Lallement, C. Gassie, F. Monlau
Summary: This study evaluated the influence of inoculum-substrate ratio (ISR) on the methane production of biodegradable plastics and found that an ISR between 2.85 and 4 is recommended for reproducible degradation kinetics and optimal methane production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Energy & Fuels
Abderrahmane Lahbab, Mohammed Djaafri, Slimane Kalloum, Ali Benatiallah, M. R. Atelge, A. E. Atabani
Summary: This study examined the biogas production from vegetable peel and cow dung without external inoculum, with experimental results showing that a CDR of 3:1 resulted in optimal methane production. A new mathematical model based on CDR and VS accurately predicted methane production and was validated against experimental results.
Article
Engineering, Chemical
Yasmim A. A. da Fonseca, Adonai B. B. de Camargos, Gustavo S. M. Gomes, P. Fregulia, Silvana Q. Q. Silva, Leandro V. A. Gurgel, Bruno E. L. Baeta
Summary: The pH and substrate-to-inoculum ratio (S/I) are crucial parameters in anaerobic fermentation of agroindustrial residues. This study optimized these parameters to produce biobased volatile fatty acids (VFAs) from hydrothermally pretreated olive mill solid waste (HPOMSW). pH was found to significantly influence the mixed culture fermentation of HPOMSW, and microbial community analyses revealed the dominant presence of Proteobacteria and Firmicutes. The experimental data best fit a second-order model for VFAs production at the desirable condition.
Article
Environmental Sciences
Davidraj Johnravindar, Rajat Kumar, Liwen Luo, Zhao Jun, M. K. Manu, Hailong Wang, Jonathan W. C. Wong
Summary: This study evaluated the suitability of biochar-assisted co-digestion in the anaerobic digestion of food waste and sewage sludge. The results showed that biochar addition played a critical role in stabilizing methane production and caused significant changes in the microbial community composition at higher inoculum and substrate ratios.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)