Article
Agricultural Engineering
Meifeng Zhang, Qili Zhu, Ping Yu, Hao Wang, Xujing Guo
Summary: In this study, the effects of attapulgite on biogas production during anaerobic co-digestion of rice straw and cattle dung were explored. Spectroscopic techniques were used to investigate the characteristics, components, and evolution of dissolved organic matter (DOM). The results showed that the addition of attapulgite increased the biogas yield, with higher yields observed for substrates with attapulgite compared to those without attapulgite. PARAFAC analysis identified six components of DOM, including protein-like, fulvic-like, and humic-like substances. The presence of attapulgite promoted the growth of methanogenic bacteria, accelerated methane generation, and increased biogas production by facilitating the conversion of DOM.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Green & Sustainable Science & Technology
Michelle Garcia Gomes, Aline Gomes de Oliveira Paranhos, Adonai Bruneli Camargos, Bruno Eduardo Lobo Baeta, Milla Alves Baffi, Leandro Vinicius Alves Gurgel, Daniel Pasquini
Summary: This study evaluated the pretreatment of sugarcane bagasse with dilute citric acid solution for biogas production. The pretreated black liquor and residual solid fraction were used as substrates for biogas production. The highest concentration of total reducing sugars obtained after saccharifications was in the range of 10.7-184.8 g L-1, with sugar yields ranging from 3.5-88.8%. Biogas production from the black liquor and residual solid fraction showed promising results, indicating the feasibility of using dilute citric acid pretreatment in biorefineries.
Review
Agricultural Engineering
Amith Abraham, Hyojung Park, Okkyoung Choi, Byoung-In Sang
Summary: The world of bioplastics has rapidly expanded, generating new waste streams that pose challenges to waste processing; anaerobic co-digestion is considered the best option for efficient bioplastic waste processing with reduced space requirements and environmental pollution; the higher C/N ratio of bioplastics presents a challenge to anaerobic digestion, but co-digestion with lower C/N ratio biowastes can improve biogas production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Begona Mayans, Rafael Anton-Herrero, Carlos Garcia-Delgado, Nely Carreras, Laura Delgado-Moreno, Consuelo Escolastico, Rocio Millan, Enrique Eymar
Summary: Livestock manure can be utilized to produce biogas by pre-treating it with ligninolytic fungi, which can break down lignin and facilitate the hydrolysis step, leading to higher biomethane production. Three strategies of incubation with Pleurotus fungi were evaluated, showing a significant increase in methane production compared to the control group. Extracts from Pleurotus fungi could be considered as a novel and promising tool for optimizing methane production.
BIOMASS & BIOENERGY
(2023)
Review
Green & Sustainable Science & Technology
Oumoul-Kairou Karidio Daouda Idrissa, David Tsuanyo, Rodrigue Adjoumani Kouakou, Yacouba Konate, Boukary Sawadogo, Kouassi Benjamin Yao
Summary: This review examines the parameters that affect biogas yield and provides insights into optimizing production. Through analyzing various substrates, optimal ratios for achieving higher yields were identified. It emphasizes the importance of optimizing biogas production and provides solutions and optimal substrate ratios for improved biogas yield.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Agricultural Engineering
Neha Srivastava, Kumar Rohit Srivastava, Farkad Bantun, Akbar Mohammad, Rajeev Singh, Dan Bahadur Pal, P. K. Mishra, Shafiul Haque, Vijai Kumar Gupta
Summary: Biogas production from anaerobic digestion of organic wastes has been improved by using CuO/Cu2O based nanocatalyst with pressmud as a substrate. The study shows that using 1.0% CuO/Cu2O based nanocatalyst in anaerobic digestion process, a cumulative biogas production of 224.7 mL CH4 /g VS could be achieved after 42 days.
BIORESOURCE TECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Ming Wang, Jianlin Wang, Yunting Li, Qichen Li, Pengfei Li, Lina Luo, Feng Zhen, Guoxiang Zheng, Yong Sun
Summary: Low-temperature pretreatment (LTPT) is an engineering method used to improve biogas production, which has the advantages of low cost, simplicity, and energy saving. However, the mechanism of heat treatment of biomass is not fully understood, and it is influenced by factors such as feedstock type and treatment temperature. This review discusses the application of LTPT in different biomass materials and proposes suggestions for promoting its implementation.
FERMENTATION-BASEL
(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)
Article
Agricultural Engineering
Mirko Cucina, Daniela Pezzolla, Chiara Tacconi, Giovanni Gigliotti
Summary: This study aimed to investigate anaerobic co-digestion of lignocellulosic residues and the role of soluble organic matter, showing that co-digestion can increase biomethane yields with a positive correlation to soluble organic matter. Fruit wastes and brewery trub positively affected anaerobic digestion of lignocellulosic residues, but fruit waste co-digestion may lead to early acidification.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Zahra Al Hasani, Jagdeep Kumar Nayak, Halima Alhimali, Abdullah Al-Mamun
Summary: The study found that the use of conductive additive GAC/nZVI in anaerobic digestion process can significantly increase the biogas production and methane generation, as well as improve the removal rate of COD.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Shiyou Pan, Hossain M. Zabed, Zhenchong Li, Xianghui Qi, Yutuo Wei
Summary: This study establishes a strategy of balancing sugar-fiber-nitrogen nutrients for improved methane production by co-digesting banana pseudostem, sugarcane baggage, and chicken manure. The co-digestion process remains stable and provides a deeper understanding of nutrient balance.
BIORESOURCE TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Adila Fazliyana Aili Hamzah, Muhammad Hazwan Hamzah, Hasfalina Che Man, Nur Syakina Jamali, Shamsul Izhar Siajam, Muhammad Heikal Ismail
Summary: This study investigated the effect of organic loading on the anaerobic mesophilic digestion of cow dung. It was found that increasing the organic loading led to higher methane yield, with the highest cumulative methane yield observed at 30 gVS/L. The modified Gompertz model showed a good fit with the experimental data.
Article
Agricultural Engineering
Jin-Ting He, Nan Yao, Zhao-Yong Sun, Feng Li, He-Qing Cai, Li-Feng Jin, Yue-Qin Tang
Summary: Tobacco processing waste can be used as feedstock for biogas production through anaerobic digestion. This study examined the thermophilic anaerobic digestion of flue-cured tobacco leaf waste and evaluated the effects of biochar on biogas production. The addition of biochar enhanced methane production by 1.12-1.20 fold at different organic loads. The presence of biochar shortened the lag period and increased the methane production rate. Specific bacterial and methanogenic genera played a crucial role in the digestion process. These findings provide valuable insights for the treatment of tobacco waste.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Irfan Saif, El-Sayed Salama, Muhammad Usman, Dae Sung Lee, Kamran Malik, Pu Liu, Xiangkai Li
Summary: Biochar addition, especially from walnut shell, enhances both the degradation of lignocellulosic biomass and the biogas production in anaerobic digestion. Different concentrations of walnut shell biochar have varying effects on different types of lignocellulosic biomass, but generally improve biogas production and chemical oxygen demand removal rates. The presence of biochar also provides a suitable environment for microbial colonization, ultimately facilitating interspecies electron transfer and improving biomass digestibility.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Thermodynamics
Kavosh Karami, Keikhosro Karimi, Safoora Mirmohamadsadeghi, Rajeev Kumar
Summary: This study investigated the effects of biological pretreatment on biogas production from lignocellulosic biomass and studied the combination effect with other pretreatment methods. The results showed that aerobic digestion was the only pretreatment method that could individually improve methane yield from pinewood, but combining aerobic digestion with mild thermochemical pretreatment could achieve even higher methane yield.