Article
Engineering, Environmental
Jin Liu, Stephen R. Smith
Summary: The effects of sludge composition on digestion performance were investigated in this study, and it was found that the fat and cellulose contents in the raw sludge had a significant impact on biogas yield.
WATER SCIENCE AND TECHNOLOGY
(2022)
Review
Environmental Sciences
Anna Christine Trego, Simon Mills, Gavin Collins
Summary: Anaerobic digestion is recognized as a sustainable method for waste management, producing methane-rich biogas. Different specialized granules, including anaerobic and aerobic granules, have opened up new opportunities in wastewater treatment and resource recovery biotechnology. Each type of granule has unique characteristics, biochemical processes, and microbial community compositions.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Dominik Andreides, Dana Pokorna, Jana Zabranska
Summary: This study assessed the effects of different syngas loading rates and mechanical stirring on the biomethanation of syngas in a lab-scale continuous anaerobic digester processing sewage sludge. The results showed that mechanical stirring improved the conversion rate of CO and H2, while increased pH resulted in acetic acid accumulation.
Article
Agricultural Engineering
Cheng Sun, Liang Guo, Yongkang Zheng, Dan Yu, Chunji Jin, Yangguo Zhao, Zhiwen Yao, Mengchun Gao, Zonglian She
Summary: This study investigated two-stage anaerobic digestion of mixed sludge with different volume ratios, finding that the highest H-2 and CH4 yields were obtained in a volume ratio of 1:3 for primary and secondary sludge. Mixed sludge was found to have a positive effect on the release of organics and utilization of volatile fatty acids in anaerobic digestion. Investigating the compositional characteristics of dissolved organic matters revealed more degradable substances utilization in the mixture of sludge.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Eskandar Poorasgari, Banu Ormeci
Summary: Experimental and computational approaches were used to model the kinetics of volatile solids destruction during wastewater sludge digestion, taking into account the effects of water evaporation. New kinetic models were developed to predict volatile solids concentrations in different conditions. The study found that water evaporation is an important factor to consider for accurate determination of kinetic rate constants and solids reduction.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Agricultural Engineering
Zehao Zhang, Xuan Li, Huan Liu, Arash Zamyadi, Wenshan Guo, Haiting Wen, Li Gao, Long D. Nghiem, Qilin Wang
Summary: This review provides a comprehensive assessment of advanced detection and removal techniques of antibiotic resistance genes (ARGs) in sludge digestion field over the past decade. Various sludge digestion strategies and pretreatment technologies were systematically summarized and compared for their effectiveness in ARGs removal. Future recommendations for the research in this area were also proposed.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Sharifah Nazura Syed Sabeer Ali, Rozita Omar, Hasfalina Che Man, Aida Isma Mohamad Idris, Hairul Anuar Tajuddin, Siti Baizura Mahat, Luqman Chuah Abdullah
Summary: Protein concentration has an impact on the formation of foam and scum in digestion process, and high protein concentration leads to the presence of sludge residue.
DESALINATION AND WATER TREATMENT
(2023)
Article
Chemistry, Physical
Marco Chiappero, Francesca Cillerai, Franco Berruti, Ondrej Masek, Silvia Fiore
Summary: This study compared the effects of six different biochars on anaerobic digestion of mixed wastewater sludge, demonstrating that biochars with specific physical and chemical properties play a positive role in increasing methane production.
Article
Engineering, Environmental
Xianbao Wang, Yili Xie, Xuefei Qi, Tiantian Chen, Yudi Zhang, Chuyue Gao, Anlong Zhang, Wu'ang Ren
Summary: A novel mechanical cutting pretreatment method was studied to improve the fermentation and anaerobic digestion of primary sludge (PS). The method significantly enhanced the performance by reducing particle size, increasing soluble COD, and promoting the production of volatile fatty acids and biogas. Mechanical pretreatment enriched bacteria, but had little effect on archaea.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Thobias Pereira Silva, Mauricio Guimaraes de Oliveira, Jose Marcos Marques Mourao, Andre Bezerra dos Santos, Erlon Lopes Pereira
Summary: This study developed a mathematical model based on Monte Carlo simulation to predict the energy potential of biogas produced in an up-flow anaerobic sludge blanket (UASB) reactor treating swine wastewater (SWW). Lab-scale experiments and literature information were used to determine the energy potential of SWW at different organic loading rates (OLRs). The model allowed an estimation close to reality, with reduced errors, making it a relevant tool for entrepreneurship and energy self-sufficiency projects.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Maria Teresa Santos, Pedro Andre Lopes
Summary: The industrial sector produces large amounts of sludge, which can be treated and recovered using various methods. Through experiments, it was found that anaerobic co-digestion followed by the production of heterogeneous catalysts for biodiesel production is the most promising method.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Multidisciplinary Sciences
Marzieh Moradi, Mohsen Sadani, Abbas Shahsavani, Reza Bakhshoodeh, Nadali Alavi
Summary: The reduction of traditional fuel sources and the unpredictability of the global economy have led to a push for renewable energy alternatives. Waste recycling can significantly reduce greenhouse gas emissions. The study investigated the effects of different proportions of biochar on the efficiency of mesophilic anaerobic digestion of automotive paint sludge, and found that adding biochar increased biogas production and improved waste management.
Article
Environmental Sciences
Daniele Cecconet, Matia Mainardis, Arianna Callegari, Andrea G. Capodaglio
Summary: According to new paradigms of urban wastewater management, energy savings and resources recovery from sewage will be increasingly important. Anaerobic processes are more energy efficient than conventional aerobic ones and are suitable for recovering embedded organic energy. The study operated a pilot UASB reactor at low temperatures to treat municipal wastewater and evaluated its performance and economic benefits.
Article
Thermodynamics
Yi Shi, Jiuping Xu
Summary: This study compares anaerobic co-digestion and separate anaerobic digestion treatments to explore the best resource utilization schemes for kitchen waste and excess sludge. A multi-objective mathematical model is developed to optimize the process, considering technology and policy factors. The results show that anaerobic digestion technology combined with suitable government policy support can significantly improve waste recovery efficiency. AcoD is found to be superior to SAD, and a 1:2 mixing ratio achieves the best biomethane conversion and economic benefits.
Review
Environmental Sciences
Yinguang Chen, Yu Zhang, Zhengzhe Zhang
Summary: This review outlines the presence of microplastics and plastic additives in municipal sludge, discussing their impact on sludge anaerobic digestion and biodegradation. It systematically summarizes the composition and content of plastic additives in sludge globally, analyzing their effects on various processes. Recommendations for future research on the fate and effects of plastic additives in sludge anaerobic digestion are provided.
ENVIRONMENTAL POLLUTION
(2021)
Article
Microbiology
Shuli Liu, Xiangkun Li, Guangming Zhang, Jie Zhang
ARCHIVES OF MICROBIOLOGY
(2015)
Article
Agricultural Engineering
Qin Zhou, Panyue Zhang, Guangming Zhang, Meng Peng
BIORESOURCE TECHNOLOGY
(2015)
Article
Agricultural Engineering
Qin Zhou, Panyue Zhang, Guangming Zhang
BIORESOURCE TECHNOLOGY
(2015)
Article
Engineering, Chemical
Qin Zhou, Guangming Zhang, Xiang Zheng, Guohua Liu
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2015)
Article
Environmental Sciences
Shuli Liu, Guangming Zhang, Xiangkun Li, Pan Wu, Jie Zhang
JOURNAL OF ENVIRONMENTAL SCIENCES
(2015)
Article
Biotechnology & Applied Microbiology
Shuli Liu, Xiangkun Li, Guangming Zhang, Jie Zhang
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
(2015)
Article
Acoustics
He Zhao, Guangming Zhang, Shan Chong, Nan Zhang, Yucai Liu
ULTRASONICS SONOCHEMISTRY
(2015)
Article
Engineering, Environmental
Guang Yang, Guangming Zhang, Hongchen Wang
Article
Engineering, Environmental
Shuli Liu, Guangming Zhang, Jianzheng Li, Xiangkun Li, Jie Zhang
WATER SCIENCE AND TECHNOLOGY
(2016)
Article
Agricultural Engineering
Shuli Liu, Guangming Zhang, Jie Zhang, Xiangkun Li, Jianzheng Li
BIORESOURCE TECHNOLOGY
(2016)
Article
Agricultural Engineering
Shuli Liu, Guangming Zhang, Jie Zhang, Xiangkun Li, Jianzheng Li
BIORESOURCE TECHNOLOGY
(2016)
Article
Environmental Sciences
He Zhao, Panyue Zhang, Guangming Zhang, Rong Cheng
JOURNAL OF ENVIRONMENTAL SCIENCES
(2016)
Article
Acoustics
Shan Chong, Guangming Zhang, Nan Zhang, Yucan Liu, Jia Zhu, Ting Huang, Shunyan Fang
ULTRASONICS SONOCHEMISTRY
(2016)
Article
Engineering, Chemical
Guangming Zhang, Feng Gao, Tian Wan
DESALINATION AND WATER TREATMENT
(2015)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)