Article
Environmental Sciences
Tingting Qian, Wei Sern Ong, Dan Lu, Yan Zhou
Summary: This study comprehensively investigates the form and transformation of released phosphorus from EBPR sludge biochar pyrolyzed at different temperatures. High-temperature EBPR sludge biochar containing a high proportion of Poly-P could be an ideal P fertilizer.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Rui Li, Xukai Lu, Beibei Yan, Ning Li, Guanyi Chen, Zhanjun Cheng, Li'an Hou, Shaobin Wang, Xiaoguang Duan
Summary: In this study, the surface chemistry of sewage sludge-derived biochar (SSB) was regulated and used for peroxymonosulfate (PMS) activation and oxidation of antibiotic ciprofloxacin (CIP). The active sites on SSB and their relationships with reactive oxygen species (ROS) were identified, providing new insights into biochar synthesis and the generation mechanism of ROS from PMS activation. The outcomes are beneficial for sewage sludge utilization and developing low-cost catalysts for wastewater remediation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Siduo Song, Xuedong Liu, Xiao Jiang, Tao Peng, Huaxin Gao, Zhiqiang Xu
Summary: This study experimentally investigated the composition, physicochemical properties, and pyrolysis of oily sludge, and analyzed the pyrolysis kinetics. The results showed that the heating rate has an effect on the pyrolysis characteristics of oily sludge.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Environmental
Huiqin Zhang, Zixian Wang, Chenyu Du, Wenlong Liu, Andrea R. Gerson, Kewu Pi
Summary: This study investigated the pyrolysis of sludge into leachate sludge-derived biochar (LSDB) and found that the microstructural changes were primarily due to decomposition of various compounds. Heavy metals in LSDB were present as surface precipitates rather than surface complexation, leading to low leaching contents below discharge standards.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Energy & Fuels
Renjie Chen, Qian Sheng, Xiaohu Dai, Bin Dong
Summary: The low-temperature pyrolysis process can effectively convert sewage sludge into biochar with improved fuel properties and stable combustion behaviors.
Article
Chemistry, Physical
Liuyang He, Shangding Yang, Lie Yang, Yulong Li, Dejin Kong, Li Wu, Zulin Zhang
Summary: This study prepared sludge biochar at different pyrolysis temperatures and used it to activate periodate for the degradation of sulfamethoxazole. The results showed that higher pyrolysis temperatures resulted in increased adsorption capacity and activation ability of sludge biochar, leading to enhanced degradation of sulfamethoxazole.
Article
Chemistry, Analytical
Jingshu Li, Yanlong Li, Feifei Liu, Xiaojuan Zhang, Mengnv Song, Rundong Li
Summary: Biochar produced by pyrolysis of sewage sludge has great potential for P recycling, but the transformation mechanism of phosphorus species during pyrolysis is still unclear, limiting its further application. This study investigated the effects of pyrolysis temperature and additives on P speciation and proposed the transformation pathways and mechanism. The results showed that various P forms in sewage sludge were converted to different compounds, with the addition of CaO promoting the formation of Ca-P. The study provides theoretical support for the agricultural application of SS-pyrolysis biochar.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Chemical
Po Hu, Chenghao Hou, Xinyu Lan, Honghao Sheng
Summary: This paper examines the pyrolysis characteristics of four kinds of straw under different temperature-rise rates and analyzes the effect of heating rate on the degree of straw pyrolysis. The pyrolysis process of straw can be divided into three stages: dehydration and drying stage, volatile release stage, and carbonization stage. The reaction speed increases and the amount of residual carbon increases as the heating rate increases.
Article
Environmental Sciences
Ruofan Wu, Xu Zhai, Kuai Dai, Jiapan Lian, Liping Cheng, Gang Wang, Jiangzhou Li, Chuan Yang, Zhicheng Yin, Hongjuan Li, Xiaoe Yang
Summary: In this study, an acidified magnetic sludge-biochar (MSB) was prepared to enhance the removal efficiency of ammonium nitrogen (AN) in eutrophic water. The study found that MSB treated at 400 degrees Celsius had the highest adsorption capacity, and acid modification increased its adsorption capacity. Electrostatic attraction and ion exchange were identified as the main adsorption mechanisms of MSB on AN, and acid-modified MSB removed ammonium through nitrification. These findings demonstrate that MSB is a promising adsorbent for ammonium removal and can be used in the regulation of nitrogen-rich natural water bodies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Willem Vercruysse, Jolien Smeets, Tom Haeldermans, Bjorn Joos, An Hardy, Pieter Samyn, Jan Yperman, Kenny Vanreppelen, Robert Carleer, Peter Adriaensens, Wouter Marchal, Dries Vandamme
Summary: Common ivy, a evergreen climbing plant, shows promise as a feedstock for pyrolysis based biorefinery processes, with the potential to be used in soil fertilization and carbon sequestration. Different extraction processes and pyrolysis temperatures can influence biochar properties and carbon sequestration potential of common ivy, making it a versatile and sustainable option for urban ecosystems.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Energy & Fuels
Liyan Deng, Changyong Wu, Liya Fu, Yue Wang, Qin An, Guangmin Liu, Chunli Wan
Summary: This study investigated the physicochemical properties of biochar derived from excess sludge pyrolyzed at different temperatures and its performance in absorbing petroleum hydrocarbons. The results showed that biochar pyrolyzed at higher temperatures had lower polarity and a honeycomb or layered structure with abundant micropores. The biochar pyrolyzed at 700 degrees Celsius exhibited the highest removal efficiency for petroleum hydrocarbons.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Environmental
Hasan Merdun, Zakari Boubacar Laouge, Ismail Veli Sezgin, Asli Seyhan Ciggin
Summary: Studies on evaluating sewage sludge as a feedstock for thermochemical processes have made significant progress. It is important to determine the stage of sewage sludge treatment for incorporating thermochemical processes into wastewater treatment plants and configuring the optimal process scheme. Pyrolysis is a crucial process for resource recovery, producing bio-oil and biochar. The aim of this study was to determine the optimal process scheme for pyrolysis of different sewage sludges, and the conditions for maximum bio-oil yield were investigated using thermogravimetric analysis.
Article
Environmental Sciences
Yihuai Hu, Tobias Pape Thomsen, Owen Fenton, Sven Gjedde Sommer, Wenxuan Shi, Wenjing Cui
Summary: Globally, there is a need to replace chemical fertilizers with bio-based fertilizers to ensure food security. This study developed a pre-screening tool to evaluate greenhouse gas emissions from bio-waste used as fertilizers. The results showed that biochar effectively mitigated nitrous oxide emissions and the impact of emissions varied with different soil types.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Praveen Kumar Ghodke, Amit Kumar Sharma, J. K. Pandey, Wei-Hsin Chen, Alok Patel, Veeramuthu Ashokkumar
Summary: This study focuses on the pyrolysis of sewage sludge to produce eco-friendly fuels and value-added biochar products. The experiments showed that at the optimal temperature of 500 degrees C, the product yield consisted of 22.4 wt% bio-oil, 18.9 wt% pyrolysis gases, and 58.7 wt% biochar. The chemical composition and fuel qualities of bio-oil and pyrolysis gases make them suitable for engine use. Additionally, the biochar analysis demonstrated its potential as organic manure in the agriculture sector.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Shagali Abdulmajid Abdullahi, Hu Song, Wang Yankui, Li Hanjian, Wang Yi, Su Sheng, Xiang Jun
Summary: The study compared the pyrolysis of walnut shells using N-2 gas at 700 degrees C to one-step activation using steam/KOH under different heating rates. It was found that steam biochars developed better surface area properties compared to other biochars at the same heating rates, and increasing heating rates had a significant impact on the functional groups and surface area properties of the biochars.
Article
Engineering, Environmental
Mohammadreza Kamali, Tejraj M. Aminabhavi, Luis A. C. Tarelho, Rens Hellemans, Joren Cuypers, Isabel Capela, Maria Elisabete V. Costa, Raf Dewil, Lise Appels
Summary: The study showed that acclimatization of activated sludge with pinewood biochar significantly enhanced the biodegradation rate of phenol. The presence of biochar led to increased specific biodegradation rates and improved microbial colonization and growth, demonstrating the positive effects of biochar in the treatment of synthetic effluents.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Joao Sousa Cardoso, Valter Silva, Daniela Eusebio, Luis A. C. Tarelho, Matthew J. Hall, Alon Grinberg Dana
Summary: The co-firing of coal and NH3 is a sustainable solution for retrofitting coal power facilities and reducing CO2 emissions. This study investigates the effects of NH3 co-firing on heat release, carbon, NO, and NH3 emissions in a fluidized bed reactor. The results show that NH3 co-firing can significantly reduce CO2 emissions and decrease NO emissions depending on the NH3 ratio, injection position, and air staging.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
D. T. Pio, H. G. M. F. Gomes, L. A. C. Tarelho, A. C. M. Vilas-Boas, M. A. A. Matos, F. M. S. Lemos
Summary: The study evaluated the impact of steam injection during biomass gasification on producer gas composition and efficiency. For low-density biomass, steam injection increased H2 concentration and H2/CO ratio but lowered energy content and efficiency, potentially due to the water-gas shift reaction. For high-density biomass, steam injection improved producer gas energy content and efficiency by promoting char accumulation and char-steam reforming reactions.
Article
Energy & Fuels
Samilla G. C. de Almeida, Luis A. C. Tarelho, Tailane Hauschild, Maria Angelica Martins Costa, Kelly J. Dussan
Summary: Understanding the influence of biomass type and pyrolysis process parameters on the characteristics of biochar is crucial for generating alternative energy sources. This study evaluated the production of biochar from different biomass sources through pyrolysis. Results showed that the highest biochar and bio-oil yields were obtained from the pyrolysis of parent biomass at 450 degrees C. The biochar produced from various feedstocks displayed higher heating values and stable elemental composition, indicating its potential as an energy carrier. This work contributes to the understanding of valorizing sugarcane industry byproducts through pyrolysis to produce biochar for environmental applications and circular bioeconomy goals.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Energy & Fuels
Joao Moreira, Alan Carneiro, Diego Oliveira, Fernando Santos, Danielle Guerra, Manoel Nogueira, Hendrick Rocha, Felix Charvet, Luis Tarelho
Summary: The use of agroforestry residues for energy purposes in Brazil has been a long-standing reality. However, the lack of available information on energy properties of Amazon biomass types has hindered the potential increase in renewable energy contribution. This study aimed to propose equations to determine the higher heating values (HHVs) of these biomass types using experimental results and analyses. The validation of the proposed equations showed good agreement with experimental values, providing a reliable method for predicting HHVs of Amazon biomass types.
Review
Thermodynamics
Andrei Briones-Hidrovo, Jose Ramon Copa Rey, Ana Claudia Dias, Luis A. C. Tarelho, Sandra Beauchet
Summary: This study overcomes the drawbacks of existing assessment frameworks by evaluating a negative emissions technology. The results show promising climate performance, but highlight the impacts on land, water, and energy. The sensitivity analysis emphasizes the importance of system efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Luis C. M. Ruivo, Helena Gomes, Daniela V. Lopes, Aleksey A. Yaremchenko, Catarina Vilas-Boas, Luis A. C. Tarelho, Jorge R. Frade
Summary: In this study, catalytic gasification of biomass using a supported Fe2-xMnxO3 catalyst was investigated. The catalyst was found to have a significant impact on tar conversion and gasification parameters. Post-mortem analysis of the catalyst provided insights into redox changes and the presence of sulfur.
Article
Environmental Sciences
Joao Peres Ribeiro, Nuno C. Cruz, Marcia C. Neves, Sonia M. Rodrigues, Luis A. C. Tarelho, Maria Isabel Nunes
Summary: The study combines granulated biomass fly ash (GBFA) with the Fenton process to enhance the removal of adsorbable organic halides (AOX) from pulp bleaching wastewater. The optimal treatment setup involves sequential treatment by the Fenton process followed by GBFA, resulting in the highest AOX removal (60-70%), reduced COD, and enhanced wastewater biodegradability. GBFA can be recovered and reused without regeneration, yielding similar AOX removal compared with fresh GBFA. Furthermore, the operating cost of this treatment setup is lower than that of conducting the Fenton process alone.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
N. Cruz, L. Ruivo, A. Avellan, P. F. A. M. Romkens, L. A. C. Tarelho, S. M. Rodrigues
Summary: After the revision of the Fertilizer Regulation, biomass ash can now be used as a component material for soil improvers in the EU market, opening up opportunities for large-scale recycling. However, before application to soil, the ash needs to be stabilized through carbonation, which also allows for CO2 capture and storage. This study demonstrates that accelerated carbonation can efficiently and quickly prepare valuable soil additives compared to natural carbonation, improving plant nutrient availability.
Article
Materials Science, Ceramics
I. Antunes, L. C. M. Ruivo, L. A. C. Tarelho, A. A. Yaremchenko, A. V. Kovalevsky, J. R. Frade
Summary: The manganese ferrite was synthesized by milling reactive siderite and MnO2 powder mixtures, with and without subsequent heat treatment. The impact of milling conditions and calcination temperature on conversion of precursors was assessed, based on XRD peaks intensities and thermogravimetry. The best conditions for complete conversion were obtained by milling at 650 rpm for 6 h and calcination at 650 degrees C. The processing conditions affected the structural features of the spinel phase, and the conversion of FeCO3 occurred more readily than MnO2.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Helena G. M. F. Gomes, Manuel A. A. Matos, Luis A. C. Tarelho
Summary: This study investigates the use of air-steam and O2-enriched air mixtures as gasification agents to improve the quality of producer gas from residual biomass. Results show that steam addition increases CO2 and H2 concentrations while decreasing CO and CH4 concentrations, and O2 enrichment increases combustible species and CO2 concentrations.
Article
Thermodynamics
Luis Ruivo, Tiago Silva, Daniel Neves, Luis Tarelho, Jorge Frade
Summary: The aim of this study was to develop a graphical approach to support the operation of iron-based catalysts under gasification conditions. Experimental data and thermodynamic modelling were used to understand the dependence of catalyst performance on the thermochemical conditions of producer gas. The results suggest that controlled process parameters can enhance the tolerance of iron-based materials to deactivation and stabilize relevant active phases.
Article
Green & Sustainable Science & Technology
N. Cruz, A. Avellan, L. Ruivo, F. C. Silva, P. F. A. M. Romkens, L. A. C. Tarelho, S. M. Rodrigues
Summary: Biomass ash and sludge from pulp and paper industry have great potential to be recycled and used as components in soil improvers. However, processing is required to ensure their efficient utilization and reduce potential risks. This study tested different ash formulations and stabilization conditions to optimize the properties of ash-based granules for soil improvement.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Ana Carolina Morim, Marcia Cristina dos Santos, Luis A. C. Tarelho, Flavio C. Silva
Summary: Forestry management operations play a crucial role in preventing wildfires and protecting the environment, including soil. Recycling residual forestry biomass into biochar and using it to improve forest soils aligns with Circular Economy principles. This study assessed the effectiveness of biochar produced from low-grade forestry biomass in improving soil quality through a soil incubation assay. The results showed that the application of biochar increased soil pH and water-holding capacity, as well as the bioavailability of plant nutrient elements. However, more research is needed to evaluate the effectiveness of biochar applications in different soils.
Review
Chemistry, Multidisciplinary
D. T. Pio, A. C. M. Vilas-Boas, N. F. C. Rodrigues, A. Mendes
Summary: This work critically reviews the potential of integrating green methanol production processes in pulp mills, identifying current challenges and future trends. Pulp mills are considered to be natural frontrunners due to their suitability and availability of biogenic CO2, but face challenges such as insufficient renewable electricity, complex process implementation, and unclear legislation.
Article
Energy & Fuels
Mokhtar Benasla, Imane Boukhatem, Tayeb Allaoui, Abderrahmane Berkani, Petr Korba, Felix Rafael Segundo Sevilla, Mohamed Belfedel
Summary: The idea of exporting dispatchable solar electricity from the North African region to Europe is still being discussed. This paper focuses on the potential of Algeria as a supplier and analyzes possible import corridors and barriers.
Article
Energy & Fuels
Hobyung Chae, Sangmu Bae, Jae-Weon Jeong, Yujin Nam
Summary: Thermoelectric generators (TEGs) utilize temperature differences to produce electricity and have potential for various industrial applications. This study introduces an advanced technique that utilizes temperature gradients in water pipes to increase power generation, with efficient modulation of output power through flow control. The feasibility evaluation in residential settings shows that TEGs can generate 10.95 kWh of electricity per unit, and to achieve zero-energy buildings, 64.5 m2 of TEG deployment is required per unit given a zT value of 1.
Review
Energy & Fuels
Lina Patricia Vega, Karen Tatiana Bautista, Heliana Campos, Sebastian Daza, Guillermo Vargas
Summary: This article focuses on the current situation of biofuel production and research development in Latin American countries such as Argentina, Brazil, Mexico, Chile, Costa Rica, and Colombia. Brazil stands out as a leader in the region, making significant advancements in clean energy production through biofuels policy implementation. The review highlights the challenges these countries face in utilizing their comparative advantages for biofuel production.
Article
Energy & Fuels
Iraj Faraji Davoudkhani, Mahmoud Rerza Shakarami, Almoataz Y. Abdelaziz, Adel El-Shahat
Summary: This paper presents an optimization-based method for designing a wide-area damping controller (WADC) based on remote signals to improve the damping of inter-area oscillations by considering the time delays. The grey wolf optimization (GWO) algorithm is utilized to solve the optimization problem, and simulations and statistical results demonstrate the superiority of the proposed method.
Article
Energy & Fuels
Majid Ahmed Mohammed, Bashar Mahmood Ali, Khalil Farhan Yassin, Obed Majeed Ali, Omar Rafae Alomar
Summary: This study compares the effects of different phase change materials on the performance of solar panels. The experiment shows that the use of beeswax can lower the temperature of the panel and increase the efficiency of the photovoltaic system.
