Article
Agronomy
Paraskevas Parlakidis, Ioanna Gounari, Aristidis Georgiou, George Adamidis, Zisis Vryzas, Georgios D. Gikas
Summary: This study aims to investigate the efficiency of four pilot-scale horizontal subsurface flow constructed wetlands in remediating myclobutanil and triticonazole. The results show that the removal rate of the fungicides is influenced by the wetland design and plant species.
Article
Engineering, Chemical
Georgios D. Gikas, Zisis Vryzas, Ioannis Karametos, Vassilios A. Tsihrintzis
Summary: This study investigated the effectiveness of two pilot-scale constructed wetlands and six gravity filters in removing pyraclostrobin from polluted water. The results showed that constructed wetlands performed better in removing the fungicide compared to gravity filters. The feeding strategy also affected the removal efficiency of pyraclostrobin in the gravity filters.
Article
Engineering, Environmental
Jiachang Pi, Guangcan Zhu, Tingting Gong, Yongze Lu
Summary: It was found that planting aquatic plants in constructed wetlands for treating micro-polluted raw water can lead to an increase in disinfection by-product (DBP) precursors in the effluent, with properties similar to natural organic matter and consisting mainly of fulic acid and humus. The content of humic substances in water is correlated with the molecular weight of DOM.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Environmental Sciences
Guanlong Yu, Guoliang Wang, Tianying Chi, Chunyan Du, Jianwu Wang, Peiyuan Li, Yameng Zhang, Shitao Wang, Kai Yang, Yuannan Long, Hong Chen
Summary: This study reviewed the research on enhanced constructed wetlands (CWs) for the removal of heavy metals and metalloids (HMMs) from polluted water. A bibliometric analysis was performed to evaluate research trends, critical literature, and keyword evolution. The study found that research on CW technology for the remediation of HMM-polluted water is receiving increased attention, with no apparent trends in topics. Suggestions for optimizing the design and operation of efficient CWs for HMM-polluted water treatment are proposed based on the established literature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Mohomed Salah, Yu Zheng, Qian Wang, Chenguang Li, Yuanyuan Li, Fengmin Li
Summary: This study provides baseline data on the extent and dispersion of PPCPs in surface waters over the past ten years and identifies the mechanisms of PPCPs removal in CWs based on current research. The significant role of wetland plants in PPCPs removal is discussed, including uptake, adsorption, phytovolatilization, and biodegradation. The correlation between PPCPs characteristics, wetland configuration, and environmental conditions with PPCP removal is also assessed. The study addresses critical issues and knowledge gaps, providing a comprehensive foundation for future works on using CWs to treat PPCPs-contaminated surface waters.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Naveen Chand, Surindra Suthar, Kapil Kumar, Vineet Singh
Summary: Pharmaceutical residues pose a new threat to the environment. However, a study found that vertical flow constructed wetlands with biochar and plants can effectively remove pharmaceutical residues, and the removal efficiency is inversely proportional to the pharmaceutical concentration.
Article
Biotechnology & Applied Microbiology
K. R. S. Perera, Mangala Yatawara
Summary: The phytoremediation of partially treated municipal solid waste (MSW) leachate using selected free floating and emergent macrophytes has been shown to improve the quality of leachate before discharge to the environment. Different dilutions of leachate had varying effects on the growth of different macrophytes, with certain species showing better phytoremediation capabilities than others. The results suggest that certain emergent macrophytes, such as Chrysopogon zizanioides, could be recommended as the best plant for remediation of partially treated MSW leachate.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Yuru Wang, Zhenxin Shang, Wei Lan, Shuang Liang, Xinsheng Kang, Zhen Hu
Summary: This study used peat and intermittent aeration to enhance nitrogen removal efficiency in magnesia-containing constructed wetlands, resulting in improved plant growth and microbial abundance, and reduced global warming potential.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Preeti Parihar, Naveen Chand, Surindra Suthar
Summary: Constructed wetland systems with added Lantana weed biochar showed high efficiency in removing nutrients from wastewater. The amount of biochar directly affected the removal mechanism, with a significant reduction in COD observed. The system with a 15% biochar dose showed the highest removal rates for PO4-3, NH4+-N, SO4-2, and NO3-N. The study proposed mechanisms of physical removal, microbial facilitation, and chemical kinetics improvements for better nutrient removal in constructed wetland systems.
Article
Engineering, Chemical
Georgios D. Gikas, Vassiliki A. Papaevangelou, Vassilios A. Tsihrintzis, Maria Antonopoulou, Ioannis K. Konstantinou
Summary: The study indicates that biodegradation and adsorption onto substrate were the most prevalent removal routes of the target EPs in CWs.
Article
Green & Sustainable Science & Technology
Zhaozhe Chen, Ozeas S. S. Costa
Summary: Artificial floating islands (AFIs) have been proposed as a solution to nutrient pollution. Field and mesocosm experiments were conducted in Ohio to compare the performance of two native aquatic plant species. The results showed that Carex comosa outperformed Eleocharis palustris in terms of biomass accumulation and root system development. AFIs containing C. comosa had better nutrient removal capacity.
Article
Environmental Sciences
Ning Zhang, Fuwei Gao, Shiyi Cheng, Huijun Xie, Zhen Hu, Jian Zhang, Shuang Liang
Summary: Subsurface flow constructed wetlands (SFCWs) filled with Mn oxides showed a high removal efficiency for polycyclic aromatic hydrocarbons (PAHs), with the presence of root surface and rhizosphere microorganisms playing an important role in PAH degradation.
Article
Environmental Sciences
Xiaojin Hu, Junyu Huo, Huijun Xie, Zhen Hu, Shuang Liang, Jian Zhang
Summary: This study found that emerging substrates such as biochar, zeolite, and pyrite had higher removal efficiency for sulfamethoxazole (SMX) compared to conventional gravel substrate. The microbial compositions and functions varied among different substrate constructed wetlands, which influenced the resistance pattern and metabolism pathways of microbiomes under SMX stress. Additionally, nine transformation pathways with 15 transformation products were detected. This study provided a comprehensive insight into the processes and mechanisms of SMX removal in constructed wetlands with different substrates, which can guide substrate selection for enhanced micropollutant removal.
Article
Engineering, Environmental
S. N. Bliss, K. Berger, J. Thieme, M. Maldonado Cobos, M. Nyman
Summary: This study analyzed the ability of duckweed, water hyacinth, and water cabbage to remove beta-estradiol and 17 alpha-ethynylestradiol through the use of bench scale constructed wetlands. The results showed that duckweed was the most effective at removing estrogen compounds, with a removal rate of 96%. This study provides evidence for the use of constructed wetlands as a means to remove estrogen compounds from wastewater and demonstrates differences in plants' removal efficiencies.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Abdeslam Ennabili, Michel Radoux
Summary: The study found that Arundo donax has a higher growth rate and biomass production during the vegetation period, showing better retention of nitrogen and phosphorus, especially in tertiary treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Mariana Robles-Pliego, Eugenia J. Olguin, Javier Hernandez-Landa, Ricardo E. Gonzalez-Portela, Gloria Sanchez-Galvan, Flor Cuervo-Lopez
CLEAN-SOIL AIR WATER
(2015)
Article
Biochemical Research Methods
Eugenia J. Olguin, Omar S. Castillo, Anilu Mendoza, Karla Tapia, Ricardo E. Gonzalez-Portela, Victor J. Hernandez-Landa
Article
Environmental Sciences
Eugenia J. Olguin, Gloria Sanchez-Galvan, Francisco J. Melo, Victor J. Hernandez, Ricardo E. Gonzalez-Portela
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Environmental Sciences
Eugenia J. Olguin, Daniel A. Garcia-Lopez, Ricardo E. Gonzalez-Portela, Gloria Sanchez-Galvan
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Environmental Sciences
Gloria Sanchez-Galvan, Yanet Bolanos-Santiago
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2018)
Article
Environmental Sciences
Juan M. Perez-Morales, Gloria Sanchez-Galvan, Eugenia J. Olguin
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Biotechnology & Applied Microbiology
Gloria Sanchez-Galvan, Eugenia J. Olguin, Alejandro A. Ceballos, Itzel A. Juarez
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2019)
Article
Agricultural Engineering
D. A. Garcia-Lopez, E. J. Olguin, R. E. Gonzalez-Portela, G. Sanchez-Galvan, R. De Philippis, R. W. Lovitt, C. A. Llewellyn, C. Fuentes-Grunewald, R. Parra Saldivar
BIORESOURCE TECHNOLOGY
(2020)
Review
Biology
Eugenia J. Olguin, Gloria Sanchez-Galvan, Imilla I. Arias-Olguin, Francisco J. Melo, Ricardo E. Gonzalez-Portela, Lourdes Cruz, Roberto De Philippis, Alessandra Adessi
Summary: This review discusses the challenges and future trends of microalgae-based biorefineries, emphasizing the multi-product approach and the use of wastewater to improve cost-effectiveness. It also explores the therapeutic properties of microalgae-bioactive compounds and the application of circular economy strategies.
Article
Microbiology
Melany Villegas-Valencia, Ricardo E. Gonzalez-Portela, Barbara Bastos de Freitas, Abdulaziz Al Jahdali, Gabriel I. Romero-Villegas, Raghdah Malibari, Rahul Vijay Kapoore, Claudio Fuentes-Grunewald, Kyle J. Lauersen
Summary: The west coast of the Arabian Peninsula is located next to the Red Sea, which has high temperatures and increased salinity compared to other bodies of water. This geography provides resources that can be used for algal biotechnology in circular economy. However, the extreme summer conditions in this region may not be suitable for most microalgae species. C. merolae 10D, a polyextremophilic red algae, has shown potential for cultivation in this environment due to its ability to tolerate high temperatures and acidity.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.