Article
Environmental Sciences
Yun Zhang, Feng Liu, Yidong Lin, Lei Sun, Xinru Guo, Shuai Yang, Jinlong He
Summary: This study investigates the impact of planting plants and coupled microbial fuel cells (MFCs) on the decontamination capacity and purification mechanism of constructed wetlands (CWs). It was found that the combined system of planting plants and MFCs showed the highest pollutant removal efficiency, improving the area efficiency of the wetland system and fundamentally alleviating the disadvantage of large land footprint. High output voltages and power densities were recorded in the systems with MFCs, indicating their potential for enhancing wetland decontamination capacity. Additionally, anaerobic ammonia oxidizing bacteria were identified as key players in nitrogen removal in the system.
Article
Environmental Sciences
Yu Lei, Alette Langenhoff, Harry Bruning, Huub Rijnaarts
Summary: This study investigated the removal of micropollutants using nine different support matrix materials in constructed wetlands. The combination of bark and biochar showed the best performance in removing micropollutants.
Article
Environmental Sciences
Rayco Guedes-Alonso, Jose A. Herrera-Melian, Francisca Sanchez-Suarez, Veronica Diaz-Mendoza, Zoraida Sosa-Ferrera, Jose J. Santana-Rodriguez
Summary: Waste stabilization ponds and constructed wetlands are an effective method for removing pharmaceutical residues, but their efficiency is not always complete. This study evaluated the presence of pharmaceuticals in wastewater, their removal in a macrophyte pond-CW system, and the impact of effluent recirculation on removal and ecological risk.
Article
Engineering, Environmental
M. Sanchez, I. Ruiz, M. Soto
Summary: Constructed wetlands are a promising decentralised wastewater treatment technology that is suitable for single-family homes, rural or peri-urban areas, and low-income areas. This study combines a new anaerobic/anoxic digester with a vertical subsurface constructed wetland for the first time, achieving high overall removal efficiency of organic matter and nitrogen.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Green & Sustainable Science & Technology
Alberto Fernandez del Castillo, Marycarmen Verduzco Garibay, Carolina Senes-Guerrero, Danielle A. Orozco-Nunnelly, Jose de Anda, Misael Sebastian Gradilla-Hernandez
Summary: This review compares the removal performance of combined AR + CW systems with individual units and traditional processes, showing more efficient pollutant removal and highlighting the advantages of combined systems in terms of construction, operation, energy consumption, land use, and GHG emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Carlos Sauco, Raul Cano, David Marin, Enrique Lara, Frank Rogalla, Zouhayr Arbib
Summary: The study compared a conventional wastewater treatment plant and a hybrid alternative treatment plant for real urban wastewater from the city of Almeria, Spain. The hybrid system showed higher removal efficiencies for COD, TN, TP, and TSS, as well as high disinfection rates for total coliforms and E.Coli. Additionally, the energy demand of the hybrid system was significantly lower than that of a conventional activated sludge plant.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Hongbin Lu, Liping Xiao, Tao Wang, Shaoyong Lu, Huanhua Wang, Xiaochun Guo, Jiaxin Li
Summary: The study investigated the use of steel slag as a filler in constructed wetlands for treating low-phosphorus contaminated water, observing its effects on phosphorus removal and potential risks of phosphorus release. Results showed increased phosphorus concentrations in effluents of certain wetland components due to the decay of plant tissues, highlighting the importance of cautious application of steel slag in CW systems.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Abhradeep Majumder, Amit Bhatnagar, Ashok Kumar Gupta
Summary: This study successfully used an iron-modified aluminum-doped ZnO photocatalyst to simultaneously degrade sulfamethoxazole, carbamazepine, and 178-estradiol. Batch studies showed high removal efficiencies of these compounds, but their removal was decreased in continuous mode and further reduced in tap water and real hospital wastewater. A wetland-based system followed by a photocatalytic reactor was proposed to improve the removal efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
I. A. Hernandez-Rodriguez, G. Gonzalez-Blanco, J. F. Aguirre-Garrido, R. Beristain-Cardoso
Summary: This study investigated the performance of a hybrid system, consisting of anaerobic filter-baffled subsurface horizontal constructed wetland (AFwet), for treating polluted channel water. The results showed that the AFwet system achieved the highest COD and ammonium nitrogen removal efficiencies at a hydraulic retention time (HRT) of 8 days. The anaerobic filter in the system intensified ammonium removal, achieving removal efficiencies above 90%. Additionally, the system had the smallest footprint at specific hydraulic loading rate and organic loading rate conditions.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
A. Saner, P. N. Carvalho, J. Catalano, K. Anastasakis
Summary: This study demonstrates the potential of utilizing hydrothermal liquefaction (HTL) waste residue as renewable adsorbents and investigates the influence of chemical activation conditions. Acid washed demineralized adsorbents show higher adsorption capacity for compound removal from wastewater. Implementation of HTL technology in wastewater treatment facilities can not only valorize sewage sludge and nutrients, but also provide precursors for renewable adsorbents, enhancing technology integration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Ha Thi Thuy Ung, Bach Tho Leu, Hoa Thi Hien Tran, Luong Ngoc Nguyen, Long Duc Nghiem, Ngoc Bich Hoang, Hung Tuan Pham, Hung Cong Duong
Summary: This study reports the performance of a new combined flowform cascade (FC) and constructed wetland (CW) system in enhancing nitrogen removal and biological degradation of urban wastewater. The results show that the combined system can achieve suitable aerobic and anoxic conditions, resulting in improved removal rates of total nitrogen and biochemical oxygen demand.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Environmental Sciences
Pradeep Kumar Sharma, Kalpana Rausa, Anju Rani, Santanu Mukherjee, Manish Kumar
Summary: The study assessed a hybrid constructed wetland system for treating dairy farm wastewater, which showed significant purification of water quality under high humid climate, emphasizing its importance in protecting groundwater and human health. Future research may focus on analyzing the performance of upgraded anaerobic reactor combined with hybrid wetland system planted with macrophytes for on-site treatment of strong dairy farm wastewater in tropical regions.
ENVIRONMENTAL RESEARCH
(2021)
Review
Engineering, Chemical
Ikrema Hassan, Saidur R. Chowdhury, Perdana K. Prihartato, Shaikh A. Razzak
Summary: Constructed wetlands are an environmentally friendly technique for removing pollutants from wastewater, being used in various industries. The field of microbiology has seen significant innovations in the past decade. The review critically evaluates key aspects of CW and sets directions for future advancements.
Article
Engineering, Environmental
Tanveer Saeed, Rumana Afrin, Abdullah Al-Muyeed, Md Jihad Miah, Hasin Jahan
Summary: This study reported the pollutant removal performance of two on-site wastewater treatment configurations, namely a field-scale bioreactor septic tank and a combined pilot-scale bioreactor septic tank. The pilot-scale bioreactor septic tank showed better removal performance, with a floating constructed wetland providing additional treatment as a polishing stage.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Christy K. Benny, Saswati Chakraborty
Summary: A hybrid constructed wetland system combining horizontal and vertical flow was used to treat carbon-deficient synthetic dyeing wastewater. The results showed that the system could effectively remove azo dyes from low-carbon dyeing wastewater. In the horizontal wetland, organic waste products served as the carbon source for microbial dye degradation, resulting in 90% color removal. The vertical wetland removed dye degradation organics, ammonium-nitrogen, and organic-nitrogen.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Water Resources
H. Ates, M. E. Argun, N. Kurt
Summary: In this study, the fate of naphthalene was investigated through a supercritical water oxidation process, reaching mineralization rates of up to 98.5%. The effectiveness of different operating conditions on the formation of by-products was determined, with various intermediates with higher molecular weights than naphthalene being detected.
WATER PRACTICE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
B. Nas, H. Ates, T. Dolu, E. Yel, M. E. Argun, S. Koyuncu, M. Kara, S. Dinc
Summary: Studies have found that phthalate esters (PAEs) often exhibit negative removal efficiencies in wastewater treatment plants, with di-n-octyl phthalate (DNOP) showing the highest concentration increase in the treatment units of the three plants. The total PAEs load in the advanced biological WWTP was 1997 g d(-1), with 90% of PAEs adsorbed onto sludge.
Article
Green & Sustainable Science & Technology
Mehmet Emin Argun, Mustafa Samil Argun, Fatma Nur Arslan, Bilgehan Nas, Havva Ates, Suheyla Tongur, Ozgur Cakmakci
Summary: This study aimed to recover valuable bioactive components from orange processing wastes using supercritical CO2 extraction. By optimizing the experimental conditions, the extract yield and contents were significantly increased, and green and healthy compounds were identified. Furthermore, different types of fatty acids were found in the wastewater and orange peel extracts.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Mehmet Emin Argun, Fatma Nur Arslan, Havva Ates, Esra Yel, Ozgur Cakmakci, Birol Dag
Summary: Supercritical carbon dioxide (SC-CO2) extraction was used to extract valuable compounds from two-phase olive pomace (OP) mixed with perlite and the dried OP to avoid environmental hazards caused by leachate. The leaching black water had high chemical oxygen demand (COD) and electrical conductivity (EC), resulting in toxicity. The TPC in the extracts reached 11000 μM TE, while the maximum extraction yield and TPC recovery were 5.7% and 3%, respectively. The concentrations of secoiridoids, flavonoids, and phenolic alcohols in the pomace increased significantly in the extracts.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Havva Ates, Mehmet Emin Argun
Summary: The hypothesis of this study is that supercritical water oxidation (SCWO) can reduce the complex organic load of landfill leachate in a single stage, but it may result in the formation of undesired by-products of phthalate esters (PAEs). The fate of selected PAEs, including BBP, DEHP, and DNOP, was investigated during the oxidation of leachate under subcritical and supercritical conditions. The SCWO process significantly decreased the leachate's chemical oxygen demand (COD) and removed the PAEs, although it also produced by-products of higher molecular weight.
Article
Engineering, Environmental
Taylan Dolu, Bilgehan Nas
Summary: The occurrence and behavior of pharmaceuticals, especially in sewage sludge, have become a topic of great concern due to the potential adverse effects. In this study, the occurrence and seasonal variations of 45 pharmaceutical compounds in thickened and digested sludge were investigated. The removal patterns of both parent compounds and metabolites in anaerobic digesters were found to be similar, although the capacities for sorption onto sewage sludges varied. The treatment performances of full-scale anaerobic digesters varied for different pharmaceutical subgroups.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Taylan Dolu, Bilgehan Nas
Summary: The study investigates the environmental transmission of nonsteroidal anti-inflammatory drugs (NSAIDs) from agronomic practices to natural environments. The concentrations of NSAIDs and their metabolites in wastewater, sewage sludge, soils, and crops were monitored to evaluate their cycles in irrigation and sewage sludge application. The results show that while most NSAIDs are effectively removed in wastewater treatment plants, the concentrations of some compounds increase in agricultural irrigation points.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
B. Nas, E. Yel, M. E. Argun, S. Dinc, M. Kara, S. Koyuncu, T. Dolu, H. Ates
Summary: This study investigates the occurrence, distribution, seasonal variation, and removal of pesticides in three different types of wastewater treatment plants. The results show that the removal efficiency of atrazine (ATZ) is higher compared to chlorpyriphos (CPR) and chlorfenvinphos (CFV). ATZ is mainly removed in the primary treatment stage, while CPR and CFV are primarily removed in the biological treatment stage. Sorption onto sludge is found to be an effective removal mechanism for pesticides. The highest removal efficiency is observed for ATZ in the liquid phase under anaerobic conditions.
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)