Article
Environmental Sciences
Hui Gong, Jianning Ding, Shunyu Wang, Enhui Xu, Yonggang Xue, Dianhai Yang, Guowei Gu, Xiaohu Dai
Summary: High-solid sludge anaerobic digestion can lead to increased organic matters in digester supernatant, which promotes heterotrophic competition and reduces anaerobic ammonium oxidation (anammox) retention. This study demonstrated effective anammox retention by hydrocycloning during a two-stage deammonification, providing information for reducing particle breakdown, pumping selection, and separation optimization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Kyung Jin Min, Ki Young Park
Summary: This study investigated the optimal production conditions and economic feasibility of producing struvite from livestock wastewater, as well as the addition of zeolite to improve productivity and remove nitrogen. Results showed that using MgO as a magnesium source led to the best struvite productivity and economic efficiency. The addition of zeolite greatly increased struvite production and sales benefit, estimated to be 103% of the operating cost.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Anna Christine Trego, B. Conall Holohan, Ciara Keating, Alison Graham, Sandra O'Connor, Michael Gerardo, Dermot Hughes, Umer Zeeshan Ijaz, Vincent O'Flaherty
Summary: This study demonstrates the feasibility of high-rate, direct treatment of low-strength municipal wastewater at low temperatures for the first time. Efficient removal of BOD from wastewater and the discovery of a highly adaptable core microbiome provide a foundation for next-generation municipal wastewater treatment.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
N. Palominos, A. Castillo, L. Guerrero, R. Borja, C. Huilinir
Summary: Bischofite can reduce total phosphorous concentration in pig manure digestion without affecting methane production, while the combination of zeolite and bischofite can increase methane yield and phosphorous removal in the system.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Agricultural Engineering
Pixiang Wang, Yuriy Sakhno, Sushil Adhikari, Haixin Peng, Deb Jaisi, Temitope Soneye, Brendan Higgins, Qichen Wang
Summary: This study found that the removal of toxic compounds such as ammonia and phenolics during hydrothermal liquefaction can improve methane production efficiency in anaerobic digestion, while also increasing microbial diversity and the relative abundance of methanogens.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Pornwimon Wadchasit, Nirattisai Rakmak, Sompong O-Thong, Ubolluk Rattanasak, Tsuyoshi Imai, Sarawut Jitpinit, Kamchai Nuithitikul
Summary: This study focuses on precipitating struvite from liquid anaerobic digestion effluents (LADE) and using it as an additive in palm oil mill effluent (POME) feedstocks for biogas production. The addition of 5% struvite to POME feedstock improved the performance of biogas production, including stability, high COD removal efficiencies, increased methane yields, and decreased H2S concentrations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Chris Schott, Jorge Ricardo Cunha, Renata D. van der Weijden, Cees Buisman
Summary: Cow manure has the potential to serve as a sustainable secondary fuel and phosphorus resource, reducing reliance on finite primary resources. However, the compositional challenges of high solids content, lack of soluble phosphorus, fine struvite particles, and high bicarbonate concentrations hinder efficient and sustainable utilization. Addition of calcium can increase methane production and conversion of struvite to calcium phosphate.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Maria Teresa Santos, Pedro Andre Lopes
Summary: The industrial sector produces large amounts of sludge, which can be treated and recovered using various methods. Through experiments, it was found that anaerobic co-digestion followed by the production of heterogeneous catalysts for biodiesel production is the most promising method.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Multidisciplinary Sciences
L. B. Moyo, G. S. Simate, T. Mutsatsa
Summary: The traditional disposal of agricultural bio-waste can be harmful to the environment, but selectively separating nutrients can produce high-value products. This study found that adding banana peel waste to the anaerobic digestion of pig manure can enhance the solubilisation of phosphorus, facilitating its recovery and reuse.
Article
Engineering, Environmental
Kevin D. Orner, Sarah J. Smith, Hanna M. Breunig, Corinne D. Scown, Kara L. Nelson
Summary: The diversion of organic waste through anaerobic digestion presents an opportunity to recover valuable nutrients like nitrogen and phosphorus, with municipal sewage sludge being the largest potential source for recovery. The nutrient recovery rates vary for different end products, with liquid fertilizer, struvite, and compost contributing to offsetting synthetic fertilizer demand in California to different extents. In a profitable build-out scenario for anaerobic digestion facilities, recovered nutrients could offset a significant portion of the state's synthetic fertilizer demand.
Article
Green & Sustainable Science & Technology
Gideon Sarpong, Veera Gnaneswar Gude
Summary: The wastewater treatment industry aims to become energy self-sufficient or energy positive by recovering energy from wastewater. This paper presents an energy performance analysis considering energy efficiency and recovery mechanisms. The study highlights the importance of carbon capture enhancement and codigestion in enhancing biogas production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Engineering, Environmental
Renata Carvalho Costa, Marcio Daniel Nicodemos Ramos, Leandro Fleck, Simone Damasceno Gomes, Andre Aguiar
Summary: This study conducted a literature review on the characteristics of cassava processing wastewaters (CPWW) generated in Brazil, and found that CPWW contains high concentrations of organic matter, nutrients, solids, and cyanide. Flour production generates effluents with higher concentrations of pollutants compared to starch production. Anaerobic biological processes are found to be more suitable for treating this waste based on the relationship between organic matter and nutrient concentrations.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Agricultural Engineering
Sergi Vinardell, Sergi Astals, Konrad Koch, Joan Mata-Alvarez, Joan Dosta
Summary: The study evaluated the economic implications of co-digesting sewage sludge and food waste in anaerobic membrane bioreactors. It found that higher electricity revenue from co-digesting food waste could offset additional costs, but not when treating nutrients backload in sidestream digesters. Biosolids disposal was identified as the most significant cost in all scenarios, and sensitivity analysis showed that food waste gate fee influenced co-digestion economic feasibility.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Hao-Cheng Chang, Ping-Yong Chou, Mei-Ping Cheng, Ting-Hsun Hsiao, Kai-Yin Lo, Shan-Li Wang
Summary: Livestock and poultry waste contains a significant amount of phosphorus, and recycling this phosphorus can solve environmental pollution and reduce the need for phosphate rock. Adding a carbon source can greatly improve the release of phosphorus by changing the microbial community and lowering the pH. After appropriate treatment, the released phosphorus can be recovered as struvite.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Chris Schott, Liwen Yan, Ugne Gimbutyte, Jorge Ricardo Cunha, Renata D. van der Weijden, Cees Buisman
Summary: Cow manure is an important secondary source of phosphorus. In this study, calcium phosphate granulation was achieved during cow manure treatment using an up-flow anaerobic sludge blanket (UASB) reactor and an acidifying continuously stirred tank reactor (CSTR). The efficiency of phosphorus removal reached 83% in the UASB reactor.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
M. Aguirre, V. Munoz, A. Alcolea
Article
Environmental Sciences
Javier Bayo, Sonia Olmos, Joaquin Lopez-Castellanos
Article
Environmental Sciences
Javier Bayo, Joaquin Lopez-Castellanos, Sonia Olmos
MARINE POLLUTION BULLETIN
(2020)
Article
Water Resources
Roberto Rodriguez, Alejandro Munoz-Moreno, Ana Vanessa Caparros, Cristobal Garcia-Garcia, Angel Brime-Barrios, Julio Cesar Arranz-Gonzalez, Virginia Rodriguez-Gomez, Francisco Javier Fernandez-Naranjo, Alberto Alcolea
Summary: Research on tailings dams in Spain found that the alternating sedimentary layers within the dams exhibit contractive and dilative behaviors, with stability being influenced by both temporal and spatial conditions. Factors contributing to flow failure in tailing dams include saturation levels and shear stress.
MINE WATER AND THE ENVIRONMENT
(2021)
Article
Environmental Sciences
Javier Bayo, Sonia Olmos, Joaquin Lopez-Castellanos
Summary: The study conducted in an urban wastewater treatment plant in Southeast Spain revealed that microfibers were the most common form of microplastics, and tertiary treatments can effectively discriminate between different forms. The research also indicated a significant daily emission of microplastics into the environment, highlighting the need for source control and specific microplastic-targeted treatment.
Article
Environmental Sciences
Javier Bayo, Dolores Rojo, Pedro Martinez-Banos, Joaquin Lopez-Castellanos, Sonia Olmos
Summary: This study reports the presence and characterization of microplastics in the gastrointestinal tract of gilthead seabream from the Mar Menor coastal lagoon in Southeast Spain, with fiber form predominating and average ingestion levels higher than those reported in most studies within the Mediterranean Sea.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Javier Bayo, Dolores Rojo, Sonia Olmos
Summary: This study investigated the microplastic burden in marine and coastal sediments from the harbor of Cartagena (Spain) and its adjoining beach. Fibers were found to be the predominant type of microplastics in both marine and coastal sediments. The highest concentrations were found in the deepest marine sediments and in the furthest zone from the seashore for coastal sediments.
MARINE POLLUTION BULLETIN
(2022)
Editorial Material
Respiratory System
Carlos Baeza-Martinez, Eduardo Garcia-Pachon, Javier Bayo
ARCHIVOS DE BRONCONEUMOLOGIA
(2023)
Letter
Respiratory System
Carlos Baeza-Martinez, Sandra Ruiz-Alcaraz, Maria J. Soler-Sempere, Eduardo Garcia-Pachon, Luis Hernandez-Blasco, Javier Bayo
ARCHIVOS DE BRONCONEUMOLOGIA
(2022)
Article
Engineering, Environmental
Carlos Baeza-Martinez, Sonia Olmos, Miguel Gonzalez-Pleiter, Joaquin Lopez-Castellanos, Eduardo Garcia-Pachon, Mar Masia-Canuto, Luis Hernandez-Blasco, Javier Bayo
Summary: This study investigates the presence of airborne microplastics (MPs) in the lower human airways and finds that the majority of MPs are in the form of microfibers. The average concentration of MPs in bronchoalveolar lavage fluid is 9.18 items/100 mL, with particulate MPs accounting for a small percentage. The average size of MPs is 1.73 mm, and the longest dimension corresponds to a polyacrylic fiber.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Studies
Luis Alberto Alcolea-Rubio, Ana Vanessa Caparros-Rios, Virginia Robles-Arenas, Cristobal Garcia-Garcia, Gregorio Garcia, Rocio Millan, Araceli Perez-Sanz, Roberto Rodriguez-Pacheco
Summary: Salt efflorescences from metal sulphides and their waste are an important source of pollution in mining areas, especially in the Mediterranean region. This study characterized saline efflorescences and their leachates in a Mediterranean mining area in Southeast Spain. The physicochemical properties were determined using various techniques, and the results showed a wide range of crystalline habits and colors in the salt efflorescences. Sulphates were the dominant mineral group, followed by silicates, oxides, and sulphides. The geochemistry of the salt efflorescences indicated high concentrations of potentially toxic elements, posing a significant risk to soil and drinking water quality.
Article
Engineering, Environmental
Virginia Galvez-Blanca, Carlos Edo, Miguel Gonzalez-Pleiter, Marina Albentosa, Javier Bayo, Ricardo Beiras, Francisca Fernandez-Pinas, Jesus Gago, May Gomez, Rosario Gonzalez-Cascon, Javier Hernandez-Borges, Junkal Landaburu-Aguirre, Ico Martinez, Soledad Muniategui-Lorenzo, Cristina Romera-Castillo, Roberto Rosal
Summary: The aim of this study was to investigate the occurrence of microplastics (MPs) in drinking water in Spain by comparing tap water from different locations. Tap water from 24 points in 8 different locations in Spain was sampled and analyzed. The results showed that the concentration of MPs in the drinking water samples was relatively low and would probably pose a negligible risk to human health.
Article
Engineering, Environmental
Javier Bayo, Joaquin Lopez-Castellanos, Sonia Olmos, Dolores Rojo
Summary: This study quantitatively assesses the contribution of four wastewater treatment plants (WWTPs) to the surrounding environment in terms of microplastics (MPs). The study finds seasonal and treatment method differences in the concentrations and types of MPs. This research is important for understanding the environmental pollution of MPs and implementing measures to reduce their presence.
Article
Engineering, Environmental
Javier Bayo, Joaquin Lopez-Castellanos, Sonia Olmos, Dolores Rojo
Summary: The present study investigated the release of microplastics from wastewater treatment plants to the neighboring environment, including marine and coastal sediments, and fish. The results showed that microplastics were detected in all samples, indicating their widespread presence. The contribution of wastewater treatment plants to marine sediments was found to be slow, but coastal sediment samples closer to these plants displayed higher microplastic concentrations.
Article
Environmental Sciences
Carlos Edo, Francisca Fernandez-Pinas, Francisco Leganes, May Gomez, Ico Martinez, Alicia Herrera, Cintia Hernandez-Sanchez, Javier Gonzalez-Salamo, Javier Hernandez Borges, Joaquin Lopez-Castellanos, Javier Bayo, Cristina Romera-Castillo, David Elustondo, Carolina Santamaria, Rocio Alonso, Hector Garcia-Gomez, Rosario Gonzalez-Cascon, Virtudes Martinez-Hernandez, Junkal Landaburu-Aguirre, Monica Incera, Jesus Gago, Beatriz Noya, Ricardo Beiras, Soledad Muniategui-Lorenzo, Roberto Rosal, Miguel González-Pleiter
Summary: Plastic production continues to increase every year, and this study focuses on the deposition of microplastics (MPs) in the atmosphere. The researchers conducted a one-year monitoring in ten urban areas in Spain to quantify the atmospheric MP deposition. The results showed that polyester fibers were the most abundant type of MPs, and densely populated areas had higher deposition rates. This study provides a systematic methodology for monitoring atmospheric MP deposition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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)
