Article
Chemistry, Multidisciplinary
Jiawei Hu, Zhuo Li, Wenquan Tao
Summary: This study reported a high-efficiency and low-cost sludge pretreatment method using calcium hypochlorite for promoting anaerobic fermentation performance. The method effectively enhanced hydrogen yield and improved the biodegradability of sludge organics.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
E. R. Mikheeva, I. Katraeva, D. L. Vorozhtsov, D. A. Kovalev, A. A. Kovalev, V. S. Grigoriev, Yu Litti
Summary: The feasibility of continuous biohydrogen production from industrial wastewater through the dark fermentation process was evaluated in this study. The results showed that producing biohydrogen from confectionery wastewater is promising. The fluidized bed reactor achieved higher hydrogen yield and production rate under certain operating parameters.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Dong Chen, Yan Kuang, Haoyu Wang, Jingjing Liang, Jianwei Zhao
Summary: This study investigated the impact of the emerging pollutant naproxen (NPX) on hydrogen production from excess sludge dark fermentation. The results showed that NPX had an inhibitory effect on biohydrogen production, especially at high doses. NPX could be partially removed during the fermentation process, but it also promoted the release of dissolved chemical oxygen demand (COD) and increased soluble organic matter. NPX significantly suppressed the acidification process and key enzyme activity, leading to a decline in biohydrogen production.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Physical
Nusara Sinbuathong, Boonsong Sillapacharoenkul
Summary: Biohydrogen can be produced from starch factory wastewater and mixed microorganisms through dark fermentation. The efficiency of hydrogen production is influenced by the initial pH level during fermentation, with alkaline-treated bacteria showing higher yield and production rate. No methane gas was observed in the gas mixture produced throughout the study.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yang Chen, Yanan Yin, Jianlong Wang
Summary: The concentration of Ni2+ has a significant influence on biohydrogen production from waste activated sludge, with the optimal concentration being 5 mg/L resulting in improved fermentation efficiency and hydrogen production. Ni2+ addition decreased microbial diversity and provided more favorable conditions for hydrogen-producing bacteria growth.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Qizi Fu, Dongbo Wang, Xiaoming Li, Qi Yang, Qiuxiang Xu, Bing-Jie Ni, Qilin Wang, Xuran Liu
Summary: Hydrogen production from waste activated sludge is a promising technology to recover energy from wastewater treatment plants, but there are challenges such as low organics utilization and rapid hydrogen consumption. Further research and solutions are needed to address these challenges and make the technology more feasible.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Engineering, Environmental
Xianli Yang, Jingnan Yang, Xuran Liu, Qing Wang, Dongke Liu, Dongbo Wang
Summary: The widespread use of pharmaceuticals has raised concerns about their potential environmental effects. Previous studies have shown that most of the pharmaceuticals investigated had harmful effects on wastewater or sludge treatment. However, this study found that carbamazepine at environmentally relevant levels increased hydrogen production from anaerobic fermentation of waste activated sludge.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Chandan Mahata, Suman Dhar, Subhabrata Ray, Debabrata Das
Summary: The performance of the upflow anaerobic sludge blanket (UASB) reactor for stable H2 production from starchy wastewater supplemented with groundnut de-oiled cake using mixed consortia was investigated in this study. Limited research on H2 production for UASB reactor has been reported. The operation of the UASB reactor was divided into start-up period and production period, with different hydraulic retention times (HRT) examined for H2 production. The maximum H2 production rate of 12.3 L L-1 d-1 was observed at 3 h HRT. Physicochemical characteristics of the granular sludge were studied, and advanced bio-kinetic models were implemented to analyze the substrate consumption on hydrogen production.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Thermodynamics
Mohamed Saad Hellal, Filip Gamon, Grzegorz Cema, Gamal Kamel Hassan, Gehad Ginedy Mohamed, Aleksandra Ziembinska-Buczynska
Summary: This study investigated the enrichment of biohydrogen production from pretreated industrial sludge using SiO2@Cu-Ag core-shell nanostructure. The results showed that the addition of 40 mg/L of core-shell nanostructure significantly improved the biohydrogen yield and promoted the development of hydrogen-producing bacteria.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Energy & Fuels
Chaoyang Lu, Guangtao Wang, Quanguo Zhang, Xudong Yang, Jicai Yu, Tao Liu, Francesco Petracchini, Zhiping Zhang, Yong Sun, Danping Jiang, Xiaoyu Liang, Yameng Li, Yang Zhang, Tian Zhang, Huan Zhang
Summary: Biorefinery technology contributes to the realization of the Paris Agreement, China's carbon peak and carbon neutralization. This study investigated the gas, liquid, and kinetic characteristics of four biorefinery methods using corn stover as the raw material. The results provide insights into the efficient utilization of biomass resources and a comprehensive evaluation of biorefinery technology.
Article
Chemistry, Physical
Yair A. Del Angel-Acosta, Luis H. Alvarez, Refugio B. Garcia-Reyes, Julian Carrillo-Reyes, Alcione Garcia-Gonzalez, Edna R. Meza-Escalante
Summary: The study evaluated the capacity of heat-treated sludge to produce hydrogen through mono-and co-digestion of corn and brewery wastewater. Different initial pH values significantly influenced hydrogen production, with alkaline conditions potentially enhancing the production. The Clostridium genus played a key role in hydrogen production, especially under alkaline pH conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Abdel-Hamied M. Rasmey, Mohamed Hemida Abd-Alla, Mostafa A. Tawfik, Shymaa R. Bashandy, Mohamed Salah, Ronghou Liu, Chen Sun, Elhagag A. Hassan
Summary: This study aimed to evaluate the capacity of different inoculum sources and their bacterial diversity to generate hydrogen (H2). Sewage inocula showed the highest diversity indexes for H2-producing bacterial isolates. The highest H2 production was recorded for the sewage inoculum, and the highest H2-producing isolates were identified as Clostridium saccharobutylicum MH206 and Lactobacillus brevis MH223. The optimization process achieved the highest H2 production rate by a synergistic coculture grown on 3% molasses at 40°C, pH 7, and an inoculum size of 25% (v/v).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
Energy & Fuels
Tinku Casper D'Silva, Sameer Ahmad Khan, Subodh Kumar, Dushyant Kumar, Adya Isha, Saptashish Deb, Saurabh Yadav, Biju Illathukandy, Ram Chandra, Virendra Kumar Vijay, Paruchuri M. V. Subbarao, Zoltan Bagi, Kornel L. Kovacs, Liang Yu, Bhushan P. Gandhi, Kirk T. Semple
Summary: Green and clean hydrogen production has gained importance for sustainable renewable energy fuel needs. The dark fermentation (DF) process for biohydrogen production from organic wastes is environmentally friendly, energy-efficient, and cost-effective. This article explores the feasibility of transforming the DF process into a biorefinery system and discusses factors influencing its performance, as well as the need for downstream processes and hydrogen purification techniques. Furthermore, it highlights opportunities, challenges, and research directions for enhancing hydrogen yield and microbial metabolism, and analyzes the commercialization status and policy-level issues from the Indian perspective.
Article
Environmental Sciences
Jingnan Yang, Abing Duan, Dongbo Wang, Xianli Yang, Xuran Liu, Guojing Yang, Qi Yang
Summary: Hydrogen production from waste-activated sludge anaerobic fermentation is an effective method of resource recovery. However, the presence of diclofenac, a widely used anti-inflammatory drug, inhibits hydrogen production by binding to the active sites of hydrogenase, which leads to the inhibition of acetogenesis and acidogenesis processes that are responsible for hydrogen production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)