Article
Engineering, Environmental
C. Bretas Alvim, S. Castelluccio, E. Ferrer-Polonio, M. A. Bes-Pia, J. A. Mendoza-Roca, J. Fernandez-Navarro, J. L. Alonso, I Amoros
Summary: According to previous research, wastewater treatment plants can retain over 90% of microplastics found in wastewater, but a significant portion of the removed microplastics may be retained in the sludge, potentially causing environmental issues. This study found that microplastics have selective effects on the bacterial community in activated sludge, but do not impact the abundance of nitrifying and denitrifying bacteria in the sludge.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Environmental
Qinghui Yu, Guotao Liu, Jinhang Shi, Ting Wen, Lei Li
Summary: The steel converter slag-sludge carbon catalyst exhibited excellent catalytic performance in degrading phenol and organic matter from wastewater. It provides a practical solution for the treatment of wastewater with high concentrations of organic compounds.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Nabil Benyoucef, Andre Pauss, Nadia Abdi, Claude-Olivier Sarde, Hocine Grib, Nabil Mameri
Summary: The study showed that electromagnetic fields can both stimulate and inhibit bacterial denitrification, with potential for improving the efficiency of the process. Multiple exposure cycles to magnetic fields resulted in a significant improvement in denitrification performance, with the enhancement persisting even after the magnetic field was removed.
Article
Environmental Sciences
Sijing Tang, Jin Qian, Peifang Wang, Bianhe Lu, Yuxuan He, Ziyang Yi, Yuhang Zhang
Summary: This research explored the impact of polystyrene nanoplastics (PS-NPs) on activated sludge, revealing that exposure to PS-NPs can cause cell damage and nitrogen inhibition. The damage caused by PS-NPs exposure appears to be reversible under certain concentrations, while prolonged exposure time exacerbates nitrogen inhibition. Changes in microbial diversity and enzyme activities in the original activated sludge were observed under PS-NPs exposure.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Jiayi Yuan, Yingjie Xu, Silan Zhao, Xiang Li, Huimin Chang, Yan Zhao
Summary: By analyzing 139 datasets, this study evaluated the abilities of different technologies to recover carbon sources from sludge for denitrification. The technological routes with alkali/thermal and alkali/H2O2/microwave treatments showed the highest yields of volatile soluble solids, while thermal and mechanical treatments dissolved the most nitrogen. The technological route with alkali/thermal treatment achieved the highest effective carbon source.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Agricultural Engineering
Fangzhai Zhang, Yongzhen Peng, Zhong Wang, Hao Jiang, Shang Ren, Jingang Qiu
Summary: A novel process combining partial nitrification, fermentation, and Anammox-partial denitrification was proposed for co-treating ammonia-rich sludge supernatant, external WAS, and WWTP secondary effluent, achieving excellent nitrogen removal efficiency and external sludge reduction. This process showed significant collaboration between Anammox bacteria and partial denitrifying bacteria in the AD-UASB reactor, contributing to up to 84.1% of nitrogen removal, while saving organic resource demand and aeration consumption compared to traditional nitrification-denitrification processes.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Alaa H. Khalaf, W. A. Ibrahim, Mai Fayed, M. G. Eloffy
Summary: The study investigated the effect of operating conditions on two methods used for dairy wastewater treatment - conventional activated sludge and conventional sequencing batch reactor. The addition of plastic media was also studied, resulting in biofilm systems. Results showed that the optimum temperature for removal efficiency was 35 degrees C. The SBR method was determined to be the most effective treatment method for dairy wastewater based on the investigated conditions.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
S. K. Rifi, L. E. Fels, A. Driouich, M. Hafidi, Z. Ettaloui, S. Souabi
Summary: The production of olive oil mill wastewater is a major environmental sustainability issue in the food sector. This study evaluates the treatment capacity of a sequential batch reactor (SBR) for diluted olive oil mill wastewater using domestic wastewater. The results show that the dilution improves biodegradability and reduces pollution. The suggested treatment process is simple and cost-effective, making it suitable for olive oil manufacturing industries.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
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
Environmental Sciences
Guanying Wang, Guanglei Qiu, Jian Wei, Zhuang Guo, Weiye Wang, Xiaoling Liu, Yonghui Song
Summary: With the development of industries, explosion accidents occur frequently during production, transportation, usage, and storage of hazardous chemicals. The activated carbon-activated sludge (AC-AS) process shows promising potential in efficiently treating wastewater with high concentrations of toxic compounds. In this study, AC and AS were used to treat wastewater from an explosion accident, resulting in increased removal efficiency and shortened treatment time compared to traditional processes. Metagenomic analysis and spectroscopy were used to explore the enhancement mechanism of AC on AS, revealing the important roles of certain bacteria and genes in pollutant degradation. This study demonstrates the universal characteristics of the AC-AS process for treating wastewater with high levels of organic matter and toxicity.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Xueping Tian, Jingtao Zhao, Jun Huang, Guoke Chen, Yonggui Zhao
Summary: The metabolic process of aerobic granular sludge (AGS) treating piggery wastewater with high concentrations of carbon and nitrogen was elucidated through a combined analysis of microbial community, denitrification genes, and mathematical model calculations. The dominant microorganisms in AGS had potentials of various metabolic activities, with aerobic denitrification process being dominant. The study also revealed the resistance of rapid organic substrates storage in AGS during feast phase against high strength wastewater, providing carbon and energy sources in the famine phase.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Xiufang Zhang, Yongqiang Liu, Jun Li, Zhuo Wei, Wenyan Duan, Fangyuan Chen
Summary: This study investigates the use of sludge biochar as a bio-carrier to enhance aerobic granular sludge. The findings show that sludge biochar can speed up granule formation, improve denitrification performance, and enhance the long-term stability of aerobic granules.
Article
Environmental Sciences
Boran Wu, Xiuzhong Wang, Chengxian Wang, Bin Lu, Jing Yi, Xiaohu Dai, Xiaoli Chai
Summary: A novel high-concentration powder bio-carrier (HPB) process was developed for the high-load treatment of low-strength municipal wastewater with low C/N ratio, which facilitated rapid sludge micro-granulation and enhanced nitrogen removal efficiency. The process achieved higher volumetric load and optimized microbial structure, leading to promising results for the highly efficient treatment of low-strength municipal wastewater.
Article
Engineering, Environmental
Wenbin Liu, Jianzheng Li, Lianggang Tang, Jiuling Li, Min Zheng, Jia Meng
Summary: This study develops and demonstrates a novel integration of anammox with zero-valent iron (Fe-0) for efficient wastewater treatment. The process not only enhances phosphorus removal and sludge granulation but also combines microbial iron-based denitrification for high-level nitrogen removal. The integrated laboratory system achieves superior nitrogen and phosphorus removal, with stable total nitrogen removal efficiency of 97.4 +/- 1.6% and phosphorus removal above 90%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jingsi Gao, Nan Yang, Hehuan Liao, Hao Yuan, Jia Zhu
Summary: This study investigated the microbial community dynamics of a full-scale activated sludge process treating optoelectronic wastewater using NGS technology. It was found that during the low-performance period, bacteria genera resistant to ionizing radiation and those capable of degrading aromatic compounds had lower diversity and abundance. The high-performance period showed shorter average path length and network diameter in microbial taxon co-occurrence network analysis, indicating efficient information dissemination among taxa.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Laura Megido, Luis Negral, Leonor Castrillon, Beatriz Suarez-Pena, Yolanda Fernandez-Nava, Elena Maranon
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2017)
Article
Green & Sustainable Science & Technology
P. Ormaechea, L. Castrillon, B. Suarez-Pena, L. Megido, Y. Fernandez-Nava, L. Negral, E. Maranon, J. Rodriguez-Iglesias
Article
Environmental Sciences
Luis Negral, Beatriz Suarez-Pena, Eugenia Zapico, Yolanda Fernandez-Nava, Laura Megido, Jose Moreno, Elena Maranon, Leonor Castrillon
Article
Green & Sustainable Science & Technology
Daniel Gonzalez-Prieto, Yolanda Fernandez-Nava, Elena Maranon, Maria Manuela Prieto
Article
Environmental Sciences
E. Maranon, L. Negral, B. Suarez-Pena, Y. Fernandez-Nava, P. Ormaechea, P. Diaz-Caneja, L. Castrillon
Summary: This study investigated the methane potential of supermarket food waste under thermophilic conditions, finding that a mixture of waste from all supermarket sections produced the highest methane yield. However, excluding fruit and vegetable waste also produced similar results.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Energy & Fuels
Daniel Gonzalez-Prieto, Yolanda Fernandez-Nava, Elena Maranon, Maria Manuela Prieto
Article
Engineering, Environmental
L. Megido, L. Negral, Y. Fernandez-Nava, B. Suarez-Pena, P. Ormaechea, P. Diaz-Caneja, L. Castrillon, E. Maranon
Summary: The research found that induced bed reactors (IBR) with an organic loading rate (OLR) of 3.6 kg VS/m³ achieved optimal results for anaerobic digestion of supermarket food waste. IBR demonstrated higher methane production and volatile solids (VS) removal compared to completely stirred tank reactors (CSTR).
Article
Construction & Building Technology
D. Gonzalez-Prieto, Y. Fernandez-Nava, E. Maranon, M. M. Prieto
Summary: The study estimated the environmental impacts of modernization measures to improve energy efficiency of a cultural heritage office building in northern Spain. It found that by installing photovoltaic panels and a heat pump, reductions in Global Warming Potential and Cumulative Energy Demand can be further increased up to 54% and 61% respectively.
BUILDING RESEARCH AND INFORMATION
(2021)
Article
Environmental Sciences
Rosa Lara, Laura Megido, Beatriz Suarez-Pena, Luis Negral, Yolanda Fernandez-Nava, Jesus Rodriguez-Iglesias, Elena Maranon, Leonor Castrillon
Summary: Lockdown restrictions imposed during the COVID-19 pandemic have resulted in changes in atmospheric pollution levels. This study analyzed the hourly levels of PM10, PM2.5, and black carbon in a Spanish industrial suburban area from May 2019 to June 2020. The highest pollutant concentrations were observed when the wind came from the southwest and during nighttime. The decrease/increase in pollutant levels during the lockdown varied depending on the time period considered.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Engineering, Environmental
Rosa Lara, Beatriz Suarez-Pena, Laura Megido, Luis Negral, Jesus Rodriguez-Iglesias, Yolanda Fernandez-Nava, Leonor Castrillon
Summary: This study investigated the human health risk of metals/metalloids in the dry deposition fraction of settleable particulate matter in two sites in a coastal city in northern Spain. The main exposure pathway for residents was ingestion, and while levels were acceptable for adults, children showed higher levels of hazard indexes and carcinogenic risks for some elements. More research is needed to fully understand the impact of metals/metalloids in DSPM on human health.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Meeting Abstract
Cardiac & Cardiovascular Systems
L. Diaz-Chiron, L. Negral, A. Suarez, I. Pascual, B. Suarez-Pena, Y. Fernandez-Nava, R. Diaz, D. Hernandez-Vaquero, S. Rodriguez, P. Abreu-Gonzalez, A. Dominguez-Rodriguez, L. Castrillon, C. Moris, P. Avanzas Fernandez
EUROPEAN HEART JOURNAL
(2018)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)