Article
Agricultural Engineering
Kongyun Zhu, Qiutong Liu, Chao Dang, Aimin Li, Lei Zhang
Summary: The study found that high temperature hydrothermal carbonization can lead to decreased methane yield and increased accumulation of short chain fatty acids, and the content of inhibitory substances in aqueous products also increases with temperature. The methane yield can be significantly improved by supplementing or pretreating with carbonaceous materials.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Xi Zhang, Lulu Zhan, Min Lin, Yizhen Zeng, Rui Li, Yulong Wu
Summary: This study aimed to find the most optimized and applicable co-hydrothermal conversion process. The results showed that the combination of hydrothermal carbonization as a pretreatment of sludge and co-hydrothermal liquefaction of sludge and microalgae can achieve higher bio-oil yield and lower acid content. Furthermore, combining hydrothermal carbonization with co-hydrothermal liquefaction can reduce environmental impacts and improve environmental stability.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Elena Surra, Isabel A. A. C. Esteves, Nuno Lapa
Summary: The study compared the environmental benefits of different uses of biogas, and found that AcoD of hOFMSW + MCW resulted in higher biogas and methane yields, leading to overall better environmental performance.
BIOMASS & BIOENERGY
(2021)
Review
Chemistry, Applied
Farihahusnah Hussin, Nur Nadira Hazani, Munawar Khalil, Mohamed Kheireddine Aroua
Summary: This article provides a systematic review of hydrothermal technology and the life cycle assessment of hydrothermal biomass conversion. The study found that there is limited research on the environmental and economic impacts of hydrothermal biomass conversion, highlighting the need for environmental impact studies to demonstrate the benefits of biomass hydrothermal processing.
FUEL PROCESSING TECHNOLOGY
(2023)
Review
Engineering, Environmental
Jude A. Okolie, Emmanuel Epelle, Meshach E. Tabat, Uzezi Orivri, Andrew Nosakhare Amenaghawon, Patrick U. Okoye, Burcu Gunes
Summary: Waste biomass can be converted to green fuels and value-added products through thermochemical and biological conversion processes. Integrating thermochemical and biological processes enhances resource utilization and promotes a circular economy. Thermochemical processes have limitations in high processing costs, while biological processes face challenges of low product yield and long processing time.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Review
Agricultural Engineering
Wei Wang, Jo-Shu Chang, Duu-Jong Lee
Summary: The flourishing of anaerobic digestion (AD) in waste treatment highlights the importance of valorization of digestate, which determines the benefits of the AD process. The perception of digestate has shifted from waste to products to realize the concept of circular economy and maximize its benefits. This review provides an overview of the current status of digestate valorization, focusing on thermal-chemical methods, and summarizes novel valorization methods from recent research, highlighting prospects for digestate valorization.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Wei Wang, Jo-Shu Chang, Duu-Jong Lee
Summary: The flourishing of anaerobic digestion highlights the importance of digestate valorization, which is crucial in determining the benefits of the process. Recently, digestate has gradually been perceived as a product rather than waste, in order to achieve the concept of a circular economy and maximize its benefits. Land application is the simplest way for valorization, but legislative restrictions and environmental concerns necessitate novel valorization methods. This review outlines the current methods for solid/liquid digestate valorization, nutrient recovery, microalgae cultivation, and integration with biological and thermochemical processes. The proposed novel valorization routes and their challenges and prospects are discussed, with the integration of anaerobic digestion and thermochemical methods showing potential market value for hydrochar/biochar-derived products.
BIORESOURCE TECHNOLOGY
(2023)
Article
Thermodynamics
Xiaodi Xie, Chao Peng, Xinyu Song, Nana Peng, Chao Gai
Summary: This study investigates a strategy combining microwave-assisted hydrothermal carbonization (MHTC) pretreatment with subsequent pyrolysis for the treatment of food waste digestate (FWD). The MHTC pretreatment effectively converts FWD to hydrothermal carbons (HCs) and improves their fuel properties. Thermal decomposition experiments reveal that the pyrolysis behavior of FWD-derived HCs is similar to that of platform biomass. Kinetic analysis determines the activation energy and reaction mechanism for the pyrolysis of FWD and HCs.
Article
Environmental Sciences
Ruikun Wang, Pingbo Peng, Gaoke Song, Zhenghui Zhao, Qianqian Yin
Summary: Hydrothermal carbonation is an effective method to enhance the fuel quality of biomass, but generates large amounts of wastewater. In this study, the wastewater was converted into methane through anaerobic digestion. The use of modified hydrochar improved methane production and COD removal rate, while also reducing the instability of the AD system.
ENVIRONMENTAL POLLUTION
(2022)
Article
Green & Sustainable Science & Technology
Giulia Zoppi, Edoardo Tito, Isabella Bianco, Giuseppe Pipitone, Raffaele Pirone, Samir Bensaid
Summary: Biofuels are considered as a strategy for decarbonizing the transport sector. In this study, the environmental impacts of a biorefinery integrating hydrothermal liquefaction (HTL) and aqueous phase reforming (APR) were assessed using the LCA methodology for the first time. Corn stover and a lignin-rich stream were evaluated as potential feedstocks. The results showed that HTL-APR technology can reduce greenhouse gas emissions by 37% compared to fossil diesel, further reduced to 80% when using green energy.
Article
Green & Sustainable Science & Technology
C. Aragon-Briceno, A. B. Ross, M. A. Camargo-Valero
Summary: The study evaluated the potential of coupling hydrothermal carbonization (HTC) with anaerobic digestion (AD) for sewage sludge treatment, finding that total solid and COD reduction could reach up to 68% and 66% respectively. The inclusion of hydrochar as a fuel source increased net energy production 10 times, with scenarios using 250 degrees C thermal treatment temperature providing better economic benefits.
Article
Biotechnology & Applied Microbiology
Ibrahim Shaba Mohammed, Risu Na, Naoto Shimizu
Summary: This study constructed a state-space AD model and used an adaptive identifier system to predict biogas production during the digestion process of lignocellulose biomass. The model exhibited high accuracy and can be used to operate under different conditions.
FERMENTATION-BASEL
(2022)
Article
Environmental Sciences
G. Mannarino, S. Caffaz, R. Gori, L. Lombardi
Summary: This study compares the environmental performances of a Water Resources Recovery Facility (WRRF) and a hydrothermal carbonization (HTC) plant for sewage sludge treatment. Results show that the HTC-based scenarios exhibit improved performances, with a reduction of 98% in the Climate Change indicator. Anaerobic digestion further reduces impacts, while phosphorus recovery negatively affects most indicators.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Agricultural Engineering
Mostafa Ahmed, Fabio Sartori, Fabio Merzari, Luca Fiori, Sherien Elagroudy, Mohamed Shaaban Negm, Gianni Andreottola
Summary: The study found that the continuous hybrid fixed bed anaerobic filter reactor is promising for treating HTCL and overcoming HTC upscaling challenges, and digestate hydrochar is suitable as a supplement material for anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Zebin Cao, Benedikt Huelsemann, Dominik Wuest, Hans Oechsner, Armin Lautenbach, Andrea Kruse
Summary: The study shows that HTC treatment of biogas digestate can improve the slagging and fouling indices of hydrochar, with the specific methane yield of process water minimally affected by varying HTC residence time. Energy assessment reveals that HTC for 0.5 hours achieves the highest process efficiency and net energy gain, suggesting the use of 210 degrees C, 0.5 hours HTC condition for energy production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Thiago Abrantes Silva, Jackeline Siqueira de Castro, Vinicius Jose Ribeiro, Jose Ivo Ribeiro Junior, Gabriella Peterlini Tavares, Maria Lucia Calijuri
Summary: Microalgae biomass plays an important role in effluent bioremediation. It can serve as a soil biostimulant, providing nutrients and organic carbon. This study evaluated the application of microalgae biomass from meat processing industry effluent treatment on soil. Results showed that applying 2% microalgae biomass increased soil respiration, microbial biomass carbon, and enzyme activity, but did not promote higher plant growth. On the other hand, applying 0.55% biomass resulted in higher plant shoot dry matter mass.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
B. B. Marangon, J. S. Castro, P. P. Assemany, E. A. Couto, M. L. Calijuri
Summary: The study found that the production of bio-oil from algal biomass via hydrothermal liquefaction could have potential environmental impacts, especially in terms of climate change and marine eutrophication. By optimizing reaction conditions and recycling the aqueous phase, environmental impacts can be reduced and energy balance can be improved.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Biotechnology & Applied Microbiology
Adriana Paulo de Sousa Oliveira, Paula Assemany, Lidiane Covell, Gabriella Peterlini Tavares, Maria Lucia Calijuri
Summary: Despite being socially and economically important, swine farming produces wastewater with high concentrations of trace metals, posing a pollution risk. Microalgae can be used to effectively treat this wastewater and produce valuable biomass. This study investigated the effects of different zinc concentrations on the performance of high-rate algal ponds using microalgae. The results showed that high zinc concentrations inhibited nitrification but enhanced the removal of soluble phosphorus. Zinc also increased the chemical oxygen demand and had a significant contribution to biomass growth and zinc removal. The biochemical composition of the biomass was minimally affected by zinc.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Environmental Sciences
B. B. Marangon, I. B. Magalhaes, A. S. A. P. Pereira, T. A. Silva, R. C. N. Gama, J. Ferreira, J. S. Castro, L. R. Assis, J. F. Lorentz, M. L. Calijuri
Summary: Microalgae biomass is a versatile feedstock that can be converted into various types of biofuels. This study discusses the theoretical and practical conversion technologies, environmental impact, and cost-effectiveness of emerging algal-based biofuels. Challenges and research opportunities for optimization and scaling-up are highlighted. Continuous operation results are needed to further develop biomethane technology, and the environmental benefits of wastewater-grown microalgae biomass are emphasized.
Article
Environmental Sciences
Adriana Paulo de Sousa Oliveira, Paula Assemany, Lidiane Covell, Maria Lucia Calijuri
Summary: Microalgae cultivation in swine wastewater allows nutrient removal and biomass production. Cu contamination in the wastewater affects the growth and composition of biomass as well as nutrient removal. The concentration of Cu had a complex effect on different parameters, with 1.0 mg Cu/L stimulating microalgae growth and above 3.0 mg Cu/L causing inhibition accompanied by H2O2 accumulation. Cu also affected the lipid and carotenoid contents in the biomass, and increased Cu concentration reduced N-NH4+ removal rate but enhanced soluble P removal rate.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Luis Flavio Pereira, Raphael Rivadavia Mendes Oliveira, Ditmar Bernardo Kurtz, Jackeline de Siqueira Castro, Vitor Juste dos Santos, Sabrina do Carmo Alves, Maria Lucia Calijuri
Summary: This study aims to evaluate the forest expansion over malezales for the year 2050 and its conflicts with areas of environmental interest, in order to improve land use planning and promote sustainable development.
ENVIRONMENTAL SCIENCE & POLICY
(2023)
Article
Biotechnology & Applied Microbiology
Leticia Rodrigues de Assis, Jessica Ferreira, Paula Peixoto Assemany, Jamily Santos Teixeira, Jackeline de Siqueira Castro, Heverton Augusto Pereira, Maria Lucia Calijuri
Summary: Biofilm reactors (BRs) are being studied as a means to optimize microalgae biomass production and overcome harvesting bottlenecks. Hybrid systems (HS), which combine BRs with conventional systems, have been developed. A study was conducted to evaluate the environmental viability of different configurations of this technology.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Biotechnology & Applied Microbiology
Alexia Saleme Aona de Paula Pereira, Iara Barbosa Magalhaes, Jessica Ferreira, Jackeline de Siqueira Castro, Maria Lucia Calijuri
Summary: The environmental performance of an organomineral fertilizer composed of urea and microalgae biomass (MB) grown in wastewater was evaluated. The results indicated that MB-based fertilizer improved the environmental performance by up to 38.65% compared to chemical fertilizer.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Review
Engineering, Chemical
Vivek Kumar Nair, Koushalya Selvaraju, Saurabh Samuchiwal, Farah Naaz, Anushree Malik, Pooja Ghosh
Summary: The textile industry has great potential in terms of employment and economic growth, but it also poses severe environmental risks due to textile effluents. This review proposes a sustainable water management approach using phycoremediation to treat dye-laden wastewater and recover bio-based pigments. Microalgae and macroalgae have been extensively studied for phycoremediation, and their residual biomass can be a valuable source of bio-based pigments. The review also recommends exploring algal-bacterial consortia as an alternative method for treating dye-laden wastewater. The findings of this study provide insights for policymakers and researchers to manage water and wastewater resources sustainably, and contribute to our understanding of nature-based decontamination approaches for dye-laden wastewater.
Article
Environmental Sciences
Fabiana de avila Modesto, Roberto Cezar de Almeida Monte-Mor, Eduardo Couto
Summary: This study evaluated the relationship between variables in landfill leachate composition and the transformation processes it undergoes during operation. The results showed that biochemical oxygen demand, chemical oxygen demand, and ammonium nitrogen were the main variables that increased the pollution potential of the leachate. These findings are important for determining treatment technologies for this effluent in different scenarios.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Engineering, Environmental
Matheus Quintao Braga, Leticia Rodrigues de Assis, Vinicius Jose Ribeiro, Miriam Costa Fateixa Reis, Maria Lucia Calijuri, Paula Peixoto Assemany
Summary: The study evaluated the treatment of domestic sewage using paint booth effluent as a carbon source through microalgae biotechnology. Different mixtures of paint booth effluent and domestic sewage were assessed in high-rate algal ponds, with the blend containing 18.75% paint booth effluent and 81.25% domestic sewage showing the highest biomass productivity. The addition of paint booth effluent improved the bioremediation performance and increased nutrient and organic matter removal efficiencies.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)