Article
Agricultural Engineering
Pilli Sridhar, R. D. Tyagi, Puspendu Bhunia, Prangya Ranjan Rout, Tian C. Zhang, Rao Y. Surampalli
Summary: This study examined GHG emissions during ultrasonication and anaerobic digestion processes, finding that positive net energy and reduced GHG emissions can be achieved with low sonication energy and high solids concentration. Additionally, raising the sludge temperature during sonication can decrease energy input and GHG emissions, and further reductions in GHG emissions can be achieved through methane energy recovery during anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2021)
Article
Thermodynamics
D. Fernandez-Polanco, E. Aagesen, M. Fdz-Polanco, S. I. Perez-Elvira
Summary: Anaerobic digestion is commonly used for sludge treatment in WWTPs, with thermal hydrolysis being favored for its economic advantages. The decision to adopt TH technology varies based on local regulations and pricing, with different objectives leading to different optimal configurations. Pre-, inter- and post-treatments of TH process offer distinct advantages and drawbacks, with site-specific conditions being key in determining the best location within the WWTP.
Article
Engineering, Environmental
A. Jimenez-Benitez, A. Ruiz-Martinez, A. Robles, J. Serralta, J. Ribes, F. Rogalla, A. Seco, J. Ferrer
Summary: A semi-industrial scale AnMBR urban wastewater treatment plant was operated for 580 days to assess its long-term filtration performance, energy balance and GHG emissions. The study found that the plant was able to operate successfully without chemical cleaning requirements and was a net energy producer for a significant portion of the experimental period. However, demethanization of the effluent is needed for sustainable operation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Najmul Haque Barbhuiya, Ashish Kumar, Ayush Singh, Munish K. Chandel, Christopher J. Arnusch, James M. Tour, Swatantra P. Singh
Summary: The method of flash graphene (FG) production converts bulk quantities of carbonaceous materials into graphene, providing a way to convert various solid wastes containing carbon into valuable products, thus reducing waste volume and enabling resource valorization.
Article
Engineering, Environmental
Arianna Catenacci, Michela Peroni, Fabian Gievers, Matia Mainardis, Eleonora Pasinetti, Francesca Malpei
Summary: A methodological procedure based on batch experiments was proposed and applied to determine the optimal configuration and ozone dosage for sludge ozonation. The results showed that pre-treatment of sludge at the lowest tested dosage (20mg O-3/g VS) resulted in significant energy, cost, and greenhouse gas emission savings. Sensitivity analyses confirmed the stability of this scenario, but further pilot-scale testing is recommended for verification.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Energy & Fuels
Sagarika Panigrahi, Debajyoti Kundu, Rintu Banerjee, Brajesh Kumar Dubey
Summary: Laccase pretreatment significantly improves the anaerobic biodegradability of yard waste. The optimal pretreatment conditions for maximum delignification are a solid loading of 19.7% (w/v) of total solid, a treatment duration of 9 hours, and a pretreatment temperature of 44.5°C. The increase in water retention value, specific porosity, and crystallinity index indicates the selective removal of lignin by laccase pretreatment. The methane yield after anaerobic digestion is significantly increased compared to untreated yard waste. Different models show varying fitting performance for untreated and pretreated yard waste. Energy balance analysis confirms a positive energy gain, validating the method for field-scale studies.
Article
Agricultural Engineering
Abdallah Shanableh, Mohamed Abdallah, Adel Tayara, Chaouki Ghenai, Mohammed Kamil, Abrar Inayat, Ahmad Shabib
Summary: This study aimed to determine the bio- and thermo-chemical characteristics of dromedary manure for renewable energy generation and GHG mitigation. The experimental results showed that bio-methane production ranged between 129 and 160 mL of CH4 per gram of volatile solids. Furthermore, a feasibility study indicated that incineration would be more viable for dromedary manure management compared to anaerobic digestion in terms of economic revenue and energy recovery.
BIOMASS & BIOENERGY
(2021)
Article
Environmental Sciences
Dafne Crutchik, Javiera Barboza, Jose Ramon Vazquez-Padin, Alba Pedrouso, Angeles Val del Rio, Anuska Mosquera-Corral, Jose Luis Campos
Summary: Food waste is a major component of municipal solid waste and its sustainable management is a global challenge. Co-treatment of food waste and urban wastewater in wastewater treatment plants can reduce landfill disposal while converting organic waste into biogas. However, this co-treatment can increase capital and operating costs due to the higher sludge production. This study analyzed different scenarios for co-treatment of food waste and wastewater from economic and environmental perspectives, and found that its feasibility depends on the ratio of management costs between municipal solid waste and sewage sludge.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Ulrich Kreidenweis, Jannes Breier, Christiane Herrmann, Judy Libra, Annette Prochnow
Summary: The study compares four treatment options for broiler manure in Germany regarding greenhouse gas emissions, concluding that biogas production leads to the lowest emissions, while composting results in the highest emissions. The study also highlights the importance of considering uncertainties associated with emission factors.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Jiaxin Chen, Ji Li, Bin Ye, Xiaolei Zhang, R. D. Tyagi, Xinlei Gao
Summary: Management of chicken manure in Morocco has become a focus due to the increasing demand for chicken and eggs. The bioconversion of chicken manure into biogas can reduce the amount of manure while generating clean energy. Comparing with co-firing, pyrolysis, and gasification, anaerobic digestion of chicken manure was found to be superior in terms of energy gain.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Junlin Ji, Guoqin Xu, Hong Yang, Jing Liu, Changmei Wang, Fang Yin, Wudi Zhang, Shumei Hao
Summary: This study comprehensively assesses the efficacy of employing the internal circulation anaerobic reactor for corn alcohol wastewater treatment. It was found that the reactor effectively removes COD and maintains a good energy balance. The prokaryotic microbial community in the granular sludge exhibits high diversity, with the predominant archaea primarily involved in methane production through the acetic acid pathway. The findings of this study offer valuable insights for optimizing control strategies and engineering applications.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Yahya Ulusoy, Ayse Hilal Ulukardesler, Ridvan Arslan, Yucel Tekin
Summary: Studies on biogas production from different organic materials in anaerobic conditions are conducted worldwide, with key parameters including raw material potential, production processes, economic analysis, and environmental impacts. Chicken manure is a significant raw material in biogas production, with research showing the potential for producing 8.58 million m(3) of biogas annually from processing about 110,000 tons of waste. This process also generates 17 GWh/year of electricity, 16 GWh/year of thermal energy, and reduces CO2 emissions by 13.86 thousand tons/year.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Nicolas Malet, Sylvain Pellerin, Romain Girault, Thomas Nesme
Summary: This study evaluates the net greenhouse gas (GHG) emissions of 30 cogeneration plants in France compared to a detailed definition and assessment of their related baseline. The results show that, on average, AD plants in the French energy context do not significantly mitigate GHG emissions due to lower carbon storage in soils compared to the baseline. However, there is significant variability among AD plants, with a third of them effectively mitigating GHG emissions.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Cucina Mirko, Pezzolla Daniela, Tacconi Chiara, Gigliotti Giovanni
Summary: The study found that alkaline and thermo-alkaline pretreatments significantly increased the methanation of buckwheat hulls, mainly due to the solubilization of organic matter and degradation of lignin. Additionally, the process parameters behavior and digestate quality were not affected by the pretreatments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Malimi Kilucha, Shikun Cheng, Selele Minza, Sayed Mohammad Nasiruddin, Kgosietsile Velempini, Xinying Li, Xuemei Wang, Kerage Mokeira Doroth, Zifu Li
Summary: This study assessed the feasibility of using anaerobic digestion for the treatment of fecal sludge and production of biogas as renewable energy in Tanzania. The addition of rice straw-derived biochar improved biogas production. The calculations showed significant methane yields and positive net present values for the treatment scenarios proposed.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)