Article
Green & Sustainable Science & Technology
Matia Mainardis, Marco Buttazzoni, Fabian Gievers, Charlene Vance, Francesca Magnolo, Fionnuala Murphy, Daniele Goi
Summary: Different pretreatment technologies, such as low-temperature thermal treatment and ultrasonication, were investigated to increase biogas yield from sewage sludge. The study found that low-temperature thermal pretreatment showed the best performance in enhancing sludge solubilization and methane yield. LCA indicated that ultrasonication had the worst environmental impacts at laboratory scale, but could reduce greenhouse gas emissions, fossil depletion, and stratospheric ozone depletion at full-scale conditions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Biochemistry & Molecular Biology
Joanna Kazimierowicz, Marcin Debowski
Summary: Appropriate management is necessary to mitigate the environmental impacts of wastewater sludge. One lesser-known technology concerns the use of solidified CO2 for dewatering, sanitization, and digestion improvement. Solidified CO2 can effectively condition sludge and contribute to the improvement of digestion processes, while also reducing atmospheric CO2 emissions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Hang Yang, Yali Guo, Ning Fang, Bin Dong
Summary: Sewage sludge treatment and disposal are crucial for water environment protection and pollution management. This study used life cycle assessment to evaluate the greenhouse gas emissions and reduction potential of anaerobic digestion treatment. The results showed that sludge drying and land application were the main contributors to greenhouse gas emissions. Sludge substitution for chemical fertilizer could effectively reduce greenhouse gas emissions, while biogas utilization had a limited impact.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Senar Aydin, Arzu Ulvi, Fatma Beduk, Mehmet Emin Aydin
Summary: The occurrences, temporal variations and ecotoxicological risks of 38 selected pharmaceuticals from 7 therapeutic classes have been observed in the anaerobically treated sludge of the urban wastewater treatment plant in Konya, Turkey. The total concentrations of all pharmaceutical compounds ranged from 280 to 4898 μg/kg of dry matter. The dominant therapeutic class was analgesics and anti-inflammatories, and the use of treated sludge as fertilizer in agricultural lands causes continuous contamination of the terrestrial environment by pharmaceuticals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Green & Sustainable Science & Technology
Phoebe-Zoe Morsink-Georgali, Angeliki Kylili, Paris A. Fokaides, Agis M. Papadopoulos
Summary: This paper assesses and compares the environmental impact of using sewage sludge for compost production versus biogas production. The study finds that utilizing sludge for biogas production can save energy and reduce carbon dioxide emissions compared to compost production. Life Cycle Assessment shows that the anaerobic digestion process has a lower environmental impact than the composting process. Therefore, exploiting waste materials to produce useful products adds environmental value to the final product.
JOURNAL OF CLEANER PRODUCTION
(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
Environmental Sciences
Xiaoyong Zhang, Zhenjiang Wang, Xiaowei Peng, Jun Xiao, Qijing Wu, Xiaoping Chen
Summary: Anaerobic digestion is a promising method for reducing sewage sludge and recovering energy. A comparative life cycle assessment was conducted to evaluate different anaerobic digestion processes. The results show that anaerobic digestion combined with cogeneration and digestate incineration is advantageous to high energy recovery, but incineration is disadvantageous to economic performance. The study also revealed that the environmental damage is largest in the process of thermophilic anaerobic digestion with digestate incineration, while the smallest load is in mesophilic anaerobic digestion with digestate landfilling. Overall, thermophilic anaerobic digestion combined with thermal hydrolysis pre-treatment exhibits the best resource performance, and digestate incineration and CAD-2 show better comprehensive performance. The deep drying incineration process has better comprehensive performance than sewage sludge anaerobic digestion processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xuran Liu, Qian Deng, Mingting Du, Qi Lu, Wenneng Zhou, Dongbo Wang
Summary: The presence of PVC microplastics at environmentally relevant levels does not affect methane production but reduces the toxicity of cadmium. When the concentration of PVC microplastics reaches 30 particles/g TS, methane production recovers to 89.7% in the presence of 5 mg Cd/g TS compared to the control. The adsorption of Cd by PVC microplastics is higher than that of sludge-substrate, reducing the bioavailability of Cd during anaerobic digestion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Dowan Kim, Chaegun Phae
Summary: By conducting material flow analysis on STP, the introduction of Co-AD can significantly reduce the amount of sludge generated, improve energy production efficiency, and reduce greenhouse gas emissions.
Article
Green & Sustainable Science & Technology
C. Fernando-Foncillas, C. Varrone
Summary: This study compared five scenarios for valorizing sewage sludge with another organic waste, finding that none were profitable without subsidies. The biorefinery scenario with biological separation showed the most promise, with operating costs closest to total revenues. Anion exchange chromatography created an economic bottleneck, highlighting the need for simpler downstream technologies when developing biorefineries. Public subsidies, gate fees for organic waste, and the amount of treated material were key factors for economic feasibility, increasing total revenues between 2 and 15 times depending on the scenario.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agricultural Engineering
Jibao Liu, Xianglin He, Hui Zhong, Pei Lei, Junya Zhang, Yufeng Xu, Yuansong Wei
Summary: Thermal hydrolysis reduces the content of methylmercury in sewage sludge, with high temperature promoting both mercury methylation and methylmercury demethylation. Ruminococcaceae, Peptococcaceae, and Lachnospiraceae are potential methylators during hydrolysis and acidogenesis stage, while methylmercury demethylation dominates in the late period of anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jibao Liu, Xianglin He, Yufeng Xu, Zhuang Zuo, Pei Lei, Junya Zhang, Yongguang Yin, Yuansong Wei
Summary: The fate of mercury and MeHg during full-scale anaerobic digestion was investigated, showing that demethylation of MeHg was dominant and likely due to physico-chemical impacts. Microbial methylation or demethylation seemed negligible in terms of MeHg transformation during the anaerobic digestion process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Agricultural Engineering
Seyed Mohammad Mirsoleimani Azizi, Faisal I. Hai, Wenjing Lu, Abdullah Al-Mamun, Bipro Ranjan Dhar
Summary: This review comprehensively examines the mechanisms underlying the impacts of (nano)microplastics on anaerobic digestion, including their inhibition/enhancement effects on the process and potential impacts on biochemical pathways, key enzymes, functional genes, and microbial communities. It also highlights the potential environmental risks of biosolids contaminated with (nano)microplastics and outlines knowledge gaps and future research needs for more standardized studies.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Chemical
Pawel Wolski
Summary: This study investigates the effects of preconditioning excess sludge on the final thickening and dewatering. Sonication treatment increased the capillary suction time and improved the filtration capacity of the sludge. The thickening effect was enhanced as single, fragmented flocs were tightly packed and released free water.
DESALINATION AND WATER TREATMENT
(2022)
Review
Green & Sustainable Science & Technology
Marilys Pradel, Lynda Aissani, Jonathan Villot, Jean-Christophe Baudez, Valerie Laforest
JOURNAL OF CLEANER PRODUCTION
(2016)
Article
Green & Sustainable Science & Technology
Marilys Pradel, Lynda Aissani, Jean-Pierre Canler, Jean-Christophe Roux, Jonathan Villot, Jean-Christophe Baudez, Valerie Laforest
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Engineering, Environmental
D. Brockmann, M. Pradel, A. Helias
RESOURCES CONSERVATION AND RECYCLING
(2018)
Article
Environmental Sciences
M. Pradel, T. Pacaud, M. Cariolle
WASTE AND BIOMASS VALORIZATION
(2013)
Article
Environmental Sciences
Marilys Pradel, Lynda Aissani
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Marilys Pradel, Mathilde Lippi, Marie-Line Daumer, Lynda Aissani
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Green & Sustainable Science & Technology
Marilys Pradel, Julien Garcia, Mikko Samuli Vaija
Summary: Abiotic mineral resource assessment has seen major progress in the past decade in the field of industry and research, leading to the development of a good practices framework (GPF) to guide LCA practitioners in choosing and interpreting LCA results related to the use of abiotic mineral resources. The framework focuses on a four-step decision tree centered on LCA ISO standards but tailored specifically for abiotic mineral resources.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Multidisciplinary Sciences
Angel Avadi, Lynda Aissani, Marilys Pradel, Aurelie Wilfart
Article
Multidisciplinary Sciences
Marilys Pradel
Article
Computer Science, Information Systems
Sandro Bimonte, Marilys Pradel, Daniel Boffety, Aurelie Tailleur, Geraldine Andre, Rabi Bzikha, Jean-Pierre Chanet
INTERNATIONAL JOURNAL OF DECISION SUPPORT SYSTEM TECHNOLOGY
(2013)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Sandro Bimonte, Kamal Boulil, Jean-Pierre Chanet, Marilys Pradel
COMPUTATIONAL SCIENCE AND ITS APPLICATIONS - ICCSA 2012, PT II
(2012)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)