Article
Environmental Sciences
Yanhui Zhan, Mingyue Chang, Jianwei Lin
Summary: Lanthanum carbonate (LC) shows good performance in removing phosphate from water, mainly through ligand exchange reaction between carbonate and phosphate to form complexes. Adding LC to sediment can significantly prevent the release of phosphorus, leading to lower concentrations of reactive soluble phosphorus in the overlying water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jianwei Lin, Weijie Xiang, Yanhui Zhan
Summary: The characteristics and mechanism of phosphate adsorption onto magnetite, hematite and goethite were studied, and the effects of magnetite, hematite and goethite amendment and capping on endogenous phosphorus (P) liberation from sediment into overlying water (OW) were investigated. The adsorption of phosphate onto magnetite, hematite and goethite followed the inner-sphere complexation mechanism, and the phosphate adsorption capacity decreased in the order of magnetite>goethite>hematite. The magnetite, hematite and goethite amendment can all decrease the risk of endogenous P release into OW, with magnetite being the most effective.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Rui Deng, Danlian Huang, Lei Lei, Chengyun Zhou, Lingshi Yin, Xigui Liu, Sha Chen, Ruijin Li, Jiaxi Tao
Summary: Stabilization is crucial for remediating sediment-polluted heavy metals. This study investigated the microenvironmental response mechanisms after the gradual stabilization of Pb in sediment. An eco-friendly amendment strategy utilizing biodegradable sophorolipids showed improved efficiency in Pb stabilization and led to changes in dominant species, particularly Firmicutes, indicating successful stabilization of Pb. This research not only focuses on stabilizing Pb in sediment through eco-friendly methods, but also monitors microenvironmental responses during the stabilization process, laying the groundwork for future heavy metal amendment strategies in sediment environments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Mengfan Han, Yiwen Wang, Yanhui Zhan, Jianwei Lin, Xiaoyun Bai, Zhibin Zhang
Summary: The combined use of HFO, calcite and zeolite as a geo-engineering tool was found to effectively suppress the liberation of phosphorus from sediment, demonstrating a promising sediment remediation strategy for managing internal loading of P in surface waterbodies.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Jiajia Lei, Jianwei Lin, Yanhui Zhan, Zhibin Zhang, Jiawen Ma
Summary: The study found that aluminum/iron co-modified calcite has significant potential for controlling phosphorus release from sediments by adsorption and formation of inner-sphere complexes. Both capping and amendment can effectively reduce the release risk of phosphorus.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Li Mao, Sam G. Keenor, Chao Cai, Steve Kilham, Joanne Murfitt, Brian J. Reid
Summary: Soil organic carbon can be increased through sympathetic land management and incorporating carbon-rich amendments, such as paper crumble. Adding paper crumble to soil resulted in increased soil carbon content and improved soil properties.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Xiaoyuan Zhang, Jiyong Zheng, Ke Wang, Xiaolin Wang, Zitong Zhang, Xiaomeng Xie, Jinjun Cai
Summary: Soil carbon pool stability is crucial for achieving carbon neutrality and mitigating global warming. The application of soil amendments, such as weathered coal (WC), is a practical strategy to enhance soil quality. In this study, WC was compared to biochar (BC) as an amendment, and the results showed that WC increased mineral-bound organic carbon and soil aggregate stability more significantly than BC. The proportion of mineral-bound organic carbon and soil aggregate stability were positively correlated with soil carbon-to-nitrogen ratio, and WC treatments outperformed BC treatments in both aspects. These findings suggest that WC application is more effective than BC in improving soil carbon pool stability.
Article
Engineering, Environmental
Xiangtian Yang, Jianwei Lin, Yanhui Zhan
Summary: This study investigated the influence of aged nanoscale zero-valent iron (A-nZVI) amendment and capping on the mobilization of phosphorus from sediment to overlying water. The results showed that high A-nZVI dosage effectively reduced the release of dissolved reactive phosphorus (DRP) from sediment to overlying water under oxygen deficit conditions. Low A-nZVI dosage also had the ability to diminish the risk of DRP released from sediment into overlying water. A-nZVI capping further hindered DRP release and had higher controlling efficiency than A-nZVI amendment under oxygen deficit conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agronomy
Lisa Maggioli, Sonia Chamizo, Raul Roman, Carlos Asensio-Grima, Yolanda Canton
Summary: Sewage sludge (SS) is widely used as a soil conditioner due to its high content of organic matter and nutrients. This study found that cyanobacteria growth increased in soil amended with low concentrations of composted SS, while higher SS concentrations decreased cyanobacteria growth. However, SS significantly enhanced soil organic carbon gain and tightly-bound exopolysaccharide content. Cyanobacteria inoculation improved soil stability and had the potential for salt immobilization and soil bioremediation.
Article
Environmental Sciences
Fanqi Jing, Yuqing Sun, Yuyan Liu, Zhonghao Wan, Jiawei Chen, Daniel C. W. Tsang
Summary: In this study, the carbon stability of different biochars was evaluated by their interaction with soil clay minerals. The highly graphitized and microporous W-biochars exhibited a high carbon stability, while C and P-biochars showed a substantial level of labile carbon fraction after interaction with clay minerals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
D. D. Kok, L. Scherer, W. de Vries, K. Trimbos, P. M. van Bodegom
Summary: This study conducted an integrated assessment of the interactions between different organic amendments and soil microbial response variables, focusing on the priming effect and soil organic carbon sequestration. The findings suggest that the hot water extractable to total carbon ratio is the best predictor of the priming effect, the dissolvable to hot water extractable carbon ratio is closely related to variation in microbial response variables, and the priming effect is significantly correlated with changes in several microbial response variables. These findings advocate for the adoption of energetic principles in modeling and predicting microbially-mediated soil carbon dynamics, and highlight the importance of using organic amendments with high hot water to total carbon concentrations for more efficient soil organic carbon sequestration.
Article
Environmental Sciences
Lei Xia, Tom David, Mieke Verbeeck, Yaana Bruneel, Erik Smolders
Summary: The study found that glauconite sands can be used as phosphorus sorbents to inhibit phosphorus release in sediments under hypoxic conditions, but they still have the potential to be remobilized under certain circumstances.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Songlin Liu, Yuzheng Ren, Zhijian Jiang, Hongxue Luo, Xia Zhang, Yunchao Wu, Jiening Liang, Xiaoping Huang, Peter I. Macreadie
Summary: This study found that tropical seagrass transplantation can increase the concentration of surface sediment organic carbon (SOC) and inorganic carbon (SIC) by increasing the input of labile organic matter and allochthonous carbonate particles, respectively, with significant variations among different seagrass species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Yi Hou, Mark A. Torres
Summary: This study investigates the impact of sedimentation dynamics on the preservation of organic carbon (OC). It finds that internal sedimentation dynamics have a profound influence on OC preservation efficiencies and may create autogenic signals that can obscure signals from external forcings. The simulations match the field observations, suggesting that sedimentation dynamics and their interactions with biogeochemistry are prevalent in nature.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Joshua Cooke, Romain Girault, Sylvain Busnot, Thierry Morvan, Safya Menasseri-Aubry
Summary: This study investigates the value of different types of anaerobic digestates in soil and finds that the process parameters and post-treatments significantly influence their impact. By characterizing and classifying the digestates, it can help make better decisions for their sustainable use in agriculture.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Environmental
Richard G. Luthy, Jordyn M. Wolfand, Jonathan L. Bradshaw
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2020)
Article
Environmental Sciences
Bridget C. Gile, Paul A. Sciuto, Negin Ashoori, Richard G. Luthy
Article
Engineering, Environmental
Marc Teixido, Joseph A. Charbonnet, Gregory H. LeFevre, Richard G. Luthy, David L. Sedlak
Summary: Stormwater runoff capture and groundwater recharge can effectively augment local water resources in water-stressed cities. The pilot-scale stormwater treatment system developed in this study demonstrated successful removal of contaminants, but breakthrough of pollutants may occur under certain conditions.
Article
Engineering, Environmental
James Conrad Pritchard, Yeo-Myoung Cho, Kathleen Mills Hawkins, Stephanie Spahr, Christopher P. Higgins, Richard G. Luthy
Summary: Improved stormwater treatment is necessary to prevent the transport of toxic and mobile contaminants into receiving waters and allow beneficial use of stormwater runoff. This study investigates the use of biochar and regenerated activated carbon (RAC) in stormwater filters to remove trace organic contaminants (TrOCs) and poly- and perfluoroalkyl substances (PFASs). A contaminant transport model is developed and validated to predict the transport of TrOCs and PFASs in biochar- and RAC-amended filters. The study provides insights into the kinetics of TrOC and PFAS transport and the impact of filter design on contaminant removal performance and longevity.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Biographical-Item
Green & Sustainable Science & Technology
Craig S. Criddle, Richard G. Luthy, Bruce E. Rittmann, Chungheon Shin
Summary: Perry L. McCarty, a pioneer in environmental biotechnology, passed away at 91. His contributions to environmental engineering will be remembered.
NATURE SUSTAINABILITY
(2023)
Article
Engineering, Environmental
Lena Mutzner, Kefeng Zhang, Richard G. Luthy, Hans Peter H. Arp, Stephanie Spahr
Summary: Urban stormwater, once managed primarily for flood control and property protection, is now increasingly recognized as an underutilized water resource. However, conventional stormwater treatment systems are inefficient at removing persistent and toxic organic substances, which may pose risks when urban runoff is used for drinking water sources or discharged into surface waters. By reviewing numerous stormwater monitoring studies, we identified 49 persistent, mobile and toxic (PMT) and very persistent, very mobile (vPvM) substances in urban stormwater. The lack of surveillance data on these substances and their fate in stormwater control measures hinders reliable risk assessments of stormwater capture. Unified guidelines are needed to monitor and assess the risks of PMT/vPvM substances in urban stormwater runoff and establish improved stormwater management criteria for safe water supply.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Stephen M. Galdi, Aleksandra Szczuka, Chungheon Shin, William A. Mitch, Richard G. Luthy
Summary: Anaerobic treatment of municipal wastewater with the SAF-MBR process can be made energy-positive by recovering the dissolved methane from the effluent. An air stripping system was used to remove 98% of the dissolved methane, and intermittent disinfection further recovered 90% of the methane. The stripped methane can be utilized for energy generation by blending with biogas in an on-site combustion process.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
James Conrad Pritchard, Kathleen Mills Hawkins, Yeo-Myoung Cho, Stephanie Spahr, Scott D. Struck, Christopher P. Higgins, Richard G. Luthy
Summary: Urban stormwater runoff has a significant impact on surface water quality. The beneficial use of urban stormwater runoff, such as for drinking water supply, relies on improved treatment to remove dissolved metals and trace organic contaminants. This study evaluated different media mixtures for their ability to remove various co-contaminants and found that biochar and regenerated activated carbon (RAC) amended filters performed well. This research provides proof-of-concept for their use in stormwater treatment and offers insights for field trials.
ACS ENVIRONMENTAL AU
(2023)
Article
Engineering, Environmental
Stephanie Spahr, Marc Teixido, Sarah S. Gall, James C. Pritchard, Nikolas Hagemann, Brigitte Helmreich, Richard G. Luthy
Summary: The study found that the removal capacity of biochars for contaminants in urban stormwater increased with production temperature and specific surface area. Gasification biochar outperformed pyrolysis biochars in experimental tests.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Review
Engineering, Environmental
Alexandria B. Boehm, Colin D. Bell, Nicole J. M. Fitzgerald, Elizabeth Gallo, Christopher P. Higgins, Terri S. Hogue, Richard G. Luthy, Andrea C. Portmann, Bridget A. Ulrich, Jordyn M. Wolfand
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2020)
Meeting Abstract
Chemistry, Multidisciplinary
Marc Teixido, Stephanie Spahr, Richard Luthy, David Sedlak
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Stephanie Spahr, Marc Teixido, David Sedlak, Richard Luthy
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Richard Luthy
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Engineering, Environmental
Brian J. Halaburka, Gregory H. LeFevre, Richard G. Luthy
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2019)
Review
Engineering, Environmental
Stephanie Spahr, Marc Teixido, David L. Sedlak, Richard G. Luthy
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2020)
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.
