Article
Agricultural Engineering
Zhaodi Guo, Muhammad Usman, Saeed A. Alsareii, Farid A. Harraz, M. S. Al-Assiri, Mohammed Jalalah, Xiangkai Li, El-Sayed Salama
Summary: The study found that a 2% loading of SHW was optimal for anaerobic digestion, resulting in the highest biomethane production and VFAs consumption. Higher concentrations of SHW led to decreased biomethane production and prolonged lag-phase, with accumulation of VFAs and ammonia inhibiting biomethane and methanogenic archaea production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Aijun Zhu, Yu Qin, Jing Wu, Min Ye, Yu-You Li
Summary: The optimal performance was achieved in the thermophilic anaerobic co-digestion process of sewage sludge with paper waste at a ratio of 4:6, where the COD removal efficiency and biogas production increased significantly. The addition of paper waste had a positive impact on the competition between carbohydrate and protein degradation, with cellulolytic bacteria becoming the predominant group.
BIORESOURCE TECHNOLOGY
(2021)
Review
Engineering, Chemical
Israel Bernardo S. Poblete, Ofelia de Queiroz F. Araujo, Jose Luiz de Medeiros
Summary: This study mainly explores the improvement of bioenergy production and economic performance in sewage treatment plants, the use of technology alternatives for energy self-sufficiency, new techniques for sewage sludge management aiming at bioenergy production, and the implementation of sewage treatment with bioenergy production and carbon capture and storage.
Article
Environmental Sciences
Wai Lin Cheong, Yi Jing Chan, Timm Joyce Tiong, Woon Chan Chong, Worapon Kiatkittipong, Kunlanan Kiatkittipong, Mardawani Mohamad, Hanita Daud, I. Wayan Koko Suryawan, Mega Mutiara Sari, Jun Wei Lim
Summary: The aim of this study was to develop a simulation model of anaerobic co-digestion of food waste and sewage sludge for biogas production. The results showed the optimal parameters for methane yield, COD removal efficiency, and VS removal efficiency. Economic analysis indicated that the study is feasible and economically viable.
Article
Chemistry, Physical
Ikirsha Jokhio, Sundus Saeed Qureshi, Abdul Razzaq Sahito, Mehr-un-Nisa Qureshi, Imtiaz Ahmed Lashari, N. M. Mubarak, Manoj Tripathi, Amal M. Al-Mohaimeed, Mohamed S. Elshikh
Summary: The yield of bio-methane and bio-hydrogen was enhanced by co-digesting banana plant waste (BPW) and sewage sludge (SS). Acclimatisation of the inoculum SS was performed in a continuous stirred tank reactor (CSTR), and its various parameters were analyzed daily. Six different BPW to SS ratios were optimized and incubated in a manual methane potential test setup (MMPTS) for 40 days, with R4 (60% BPW and 40% SS) showing the highest yields. Furthermore, the best achieved ratio of BPW and SS was treated with different doses of NaOH as an alkaline pre-treatment, and the highest bio-methane yield was observed with dose 2 (0.75 mol NaOH) at 620.8 NmL/day. The study demonstrates the promising potential of co-digestion of BPW and SS for enhanced bio-methane and bio-hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Energy & Fuels
V Khanh Nguyen, Dhiraj Kumar Chaudhary, Ram Hari Dahal, N. Hoang Trinh, Jaisoo Kim, S. Woong Chang, Yongseok Hong, Duong Duc La, X. Cuong Nguyen, H. Hao Ngo, W. Jin Chung, D. Duc Nguyen
Summary: Anaerobic digestion (AD) of sewage sludge is an efficient remediation technique, but the presence of complex floc structures and high organic matter content hinder hydrolysis. Pretreatment techniques such as mechanical, chemical, thermal, and biological processes can accelerate hydrolysis and improve AD efficiency.
Article
Energy & Fuels
Muhammad Usmaan Bin Khawer, Salman Raza Naqvi, Imtiaz Ali, Muazzam Arshad, Dagmar Juchelkov, Muhammad Waqas Anjum, Muhammad Naqvi
Summary: This work presents a bibliometric and technical study on anaerobic digestion for biogas production from sewage sludge in the past ten years. The study evaluates the authors, countries, institutional collaboration, and keywords as vital parameters in the bibliometric analysis. The technical assessment focuses on highlighting challenges from previous laboratory and pilot-scale studies. The study recommends key considerations and new combination techniques to enhance biohydrogen production and attain optimized process conditions for significant economic impact in technological adaptation and commercialization.
Review
Environmental Sciences
Qingdan Wu, Dongsheng Zou, Xiaochen Zheng, Fen Liu, Longcheng Li, Zhihua Xiao
Summary: This review summarizes the effects of different antibiotics on anaerobic digestion of sewage sludge, including methane and VFAs production, and their impact on bio-transformation processes and microbial community structure. Research results show that antibiotics at environmentally relevant concentrations mainly reduce biogas production by inhibiting methanogenic processes, while a few antibiotics improve biogas production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Anna Ivanchenko, Dmytro Yelatontsev, Anatoliy Savenkov
Summary: This study demonstrates that mechanical pretreatment of NPKCa-containing waste can significantly increase biogas production and improve the nutrient content of digestates. The digestates obtained from this process not only stimulate plant growth but can also be utilized as organo-mineral fertilizers.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Lei Zhang, Pu Yang, Kongyun Zhu, Xinran Ji, Jiao Ma, Lan Mu, Fahim Ullah, Wenxiang Ouyang, Aimin Li
Summary: This study investigates the impact of co-treatment of food waste and sewage sludge on the performance of the integrated system. The results show that there is a synergistic enhancement at the optimal ratio, leading to increased methane production and improved combustion characteristics. Additionally, the co-treatment increases the daily energy output and specific energy output of the full-scale plant.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Alicja Machnicka, Klaudiusz Grubel
Summary: The aim of this research was to explore the application of waste activated sludge (WAS) pretreatment processes in anaerobic digestion. The results showed significant reductions in pathogenic bacteria, coliphages, and parasite eggs using hydrodynamic disintegration and freezing/thawing disintegration methods. The hybrid disintegration method achieved the best results.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Hongbo Liu, Xingkang Wang, Yueying Fang, Wenjia Lai, Suyun Xu, Eric Lichtfouse
Summary: Biochar addition to anaerobic digestion systems improves methane production, and the residues of anaerobic digestion can be recycled into new biochar. The study found that the residue biochar produced the highest methane yield, possibly due to its higher abundance of basic groups and electroactive microorganisms.
Article
Energy & Fuels
Pul-Eip Lee, Won-Bae Lee, Heesung Moon, Junhwa Kwon, Hueon Namkung, Wonseok Lee, Myungsoo Yoo, Dong-jin Lee
Summary: This study confirms that it is feasible to input additional food waste leachate into existing biogasification facilities as an alternative treatment method after the ban on using food waste as wet swine feed following the outbreak of African swine fever. By using weekend input and increased input methods, organic matter decomposition and gas production rates were effectively increased.
Article
Thermodynamics
Ingrid R. F. S. Alves, Claudio F. Mahler, Luciano B. Oliveira, Marcelo M. Reis, Joao P. Bassin
Summary: The addition of crude glycerol in anaerobic co-digestion process can significantly increase the production of biogas and methane. Although methane production was transiently inhibited at the highest concentration in the trials, it was restored and even maximized after a period of adaptation.
Article
Environmental Sciences
Phillimon T. Odirile, Potlako M. Marumoloa, Anthoula Manali, Petros Gikas
Summary: Two types of primary sewage sludge, PC and MS, were used for biogas production through anaerobic digestion. PC sludge showed higher daily biogas production initially, while MS sludge reached a stable peak after 14 days. Although the cumulative biogas production over 30 days was similar for both sludges, PC sludge demonstrated higher daily production compared to MS sludge.
Article
Environmental Sciences
P. Remor, J. A. Bastos, J. H. L. Alino, L. M. Frare, P. Kaparaju, T. Edwiges
Summary: This study evaluated the effect of mild alkaline pretreatment on sugarcane bagasse (SB) for improved methane production. The results showed that pretreated SB with NaOH and KOH had higher methane yield. Optimizing pretreatment parameters is crucial for enhancing anaerobic digestion of lignocellulosic substrates, leading to a more sustainable and profitable process.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Sciences
Oluchi Mbachu, Prasad Kaparaju, Chris Pratt
Summary: This study investigated plastic pollution in soil-based stormwater bioretention systems (BRS) and found that the plastic concentrations in BRS are comparable to other stormwater systems and soils in different land use areas. The study also revealed complex pathways of plastic transmission and accumulation in BRS, with plastic derived from various sources. The results suggest that gross pollutant traps are effective at reducing plastic pollution in BRS, but not as effective for microplastics.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Agricultural Engineering
Napong Ketsub, Paul Whatmore, Mahsa Abbasabadi, William O. S. Doherty, Prasad Kaparaju, Ian M. O'Hara, Zhanying Zhang
Summary: This study investigated the effects of different pretreatment methods on biomethane production from sugarcane trash via solid state anaerobic digestion and revealed the dynamics of microbial community. The findings provide important information for developing bioaugmentation strategies to improve biomethane production by solid state anaerobic digestion of lignocellulosic biomass.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Mehabub Rahaman, Tirthankar Mukherjee, Prasad Kaparaju, Saswata Bose
Summary: Iron oxide- and copper oxide-decorated reduced graphene oxide composite has been synthesized via a simple wet chemical oxidation-reduction method. The composite shows excellent thermal stability, porous structure, high specific capacitance, and energy density, making it a promising candidate for supercapacitor electrodes.
Article
Environmental Sciences
Khaliyah Sani, Rattana Jariyaboon, Sompong O-Thong, Benjamas Cheirsilp, Prasad Kaparaju, Marisa Raketh, Prawit Kongjan
Summary: This study demonstrates the performance of a two-stage anaerobic process for co-digesting high-strength waste activated sludge and greasy sludge generated from canned tuna processing. The results show that optimal methane production and chemical oxygen demand removal can be achieved by operating the process at ambient temperature with the appropriate mixing ratio.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Khaliyah Sani, Rattana Jariyaboon, Sompong O-Thong, Benjamas Cheirsilp, Prasad Kaparaju, Yi Wang, Prawit Kongjan
Summary: This study attempted to co-digest waste-activated sludge (WAS) and greasy sludge (GS) using a two-stage anaerobic digestion process. The results showed that this process was effective in stabilizing the waste and generating valuable bioenergy carriers.
Article
Energy & Fuels
Erika Conde, Prasad Kaparaju
Summary: This study investigated the effect of temporal variation in chemical composition on methane yields of rendering plant wastewater through batch experiments. The results showed significant differences in the chemical composition of the wastewater samples collected throughout the week, which in turn affected the methane production.
Article
Energy & Fuels
Diego Moya, Cesar Arroba, Christian Castro, Cristian Perez, Sara Giarola, Prasad Kaparaju, Angel Perez-Navarro, Adam Hawkes
Summary: This study proposes a methodology to evaluate the impact of consumption drivers on domestic energy consumption in Ecuador between 2010 and 2020. It considers factors such as energy requirement, population density, outdoor temperature, and socioeconomic aspects. The results can be used for energy-planning strategies and can be reproduced in other countries and regions.
Review
Energy & Fuels
Nilay Kumar Sarker, Prasad Kaparaju
Summary: This review summarizes the research conducted on microalgae cultivation in outdoor photobioreactors (PBRs). It examines various aspects of outdoor algal cultivation in PBRs, such as temperature and light intensity control, photosynthetic efficiency, outdoor adaptation of strains, PBR designs, and the impact of weather on algal growth and biochemical composition. It also briefly reviews downstream processes and environmental and economic impacts. This review provides guidance for further research in this field.
Article
Engineering, Environmental
Josefine Probst, Sara J. Couperthwaite, Graeme J. Millar, Prasad Kaparaju
Summary: Zeolite N exhibits high selectivity and capacity for ammonium ions, making it suitable for applications such as wastewater treatment. This study investigated various process factors related to zeolite N synthesis scale-up, including reactant solution agitation, mother liquor recycling, zeolite washing strategies, clay source, reactor geometry, and materials of construction. The results showed that agitation did not significantly affect zeolite N formation rate at 120 ?, but promoted it at 100 ?. Mother liquor recycling reduced the need for chemicals and improved product quality. Excessive quartz content in the clay feedstock inhibited zeolite N growth. Using specific materials and reactor types could significantly shorten reaction time.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Josefine Probst, Sara J. Couperthwaite, Graeme J. Millar, Prasad Kaparaju
Summary: This study focused on the process flow design and manufacturing economics of Zeolite N synthesis. By implementing recycling strategies for mother liquor and wash water, the demand for certain materials was reduced, and water consumption as well as wastewater generation were minimized. The optimal economic model for Zeolite N synthesis was found to be the one with recycling of mother liquor and wash water, which resulted in the highest net present value and a shorter payback period.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
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)