Article
Environmental Sciences
Yuito Tameta, Ryoji Tamura, Mao Kimura, Makoto Sasamoto, Nao Kamei-Ishikawa, Ayumi Ito
Summary: This study evaluated the impact of DSOM on the Cs sorption by zeolite and illite in soil. Results showed that DSOM inhibited Cs sorption onto clay minerals, with a higher Cs sorption observed in the ionic solution compared to the soil solution.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Engineering, Environmental
Mengjie Ma, Tianyi An, Xinyi Zou, Mabruk Adams, Chongjun Chen
Summary: This article examines the influence of humic substances (HSs) on the performance and mechanism of the anammox process. It was found that low concentrations of HSs stimulate anammox activity, while high concentrations cause inhibition. Further research is needed to explore the microscopic mechanisms of how additional HSs affect anammox in actual wastewater.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Yiming Fang, Hiroshi Sakai
Summary: UV-activated persulfate showed more efficient treatment of humic substances compared to hydrogen peroxide and direct irradiation, with treatment effectiveness depending on persulfate concentrations and UV wavelengths. Lower molecular weight components were more susceptible to degradation, eventually leading to effective removal of humic substances.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Forestry
Yu Tan, Kaijun Yang, Zhenfeng Xu, Li Zhang, Han Li, Chengming You, Bo Tan
Summary: Soil fauna play vital roles in litter humification in cold forests, with their contributions varying among species and seasons.
Article
Agronomy
Juan Hu, Wenming Zhang, Ahmed Sharaf, Wei Fan, Ling Sun, Jimei Sun, Lixia Wang, Jinggui Wu
Summary: The properties of soil humus amended with organic wastes derived humus-like substances have a significant impact on the functional groups present in the soil. Different organic waste sources, such as tree leaves, fodder grass, and sheep manure, influence the structures of soil humic acid and fulvic acid differently.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2021)
Article
Engineering, Environmental
Yuchao Shao, Menggang Bao, Weizhong Huo, Rong Ye, Muhammad Ajmal, Wenjing Lu
Summary: This study compared the humification potential of hydrochar, hydrothermal solution, and their mixture under alkaline hydrothermal conditions. The results showed that hydrochar was the main source of hydrothermal humic acid (HHA), while hydrothermal solution had a smaller contribution. The pathways of alkaline hydrothermal humification of hydrochar were also revealed through in-depth analysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Wenqing Luo, Xin Zhao, Gongting Wang, Zedong Teng, Yali Guo, Xiaonan Ji, Wei Hu, Min Li
Summary: The effects of humic acids (HA) and fulvic acids (FA) on the fate of Cd in anaerobic environment were investigated. The results showed that HA and FA could promote the reductive dissolution of Cd-bearing ferrihydrite and the formation of vivianite. HA was better than FA in immobilizing Cd.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Shaoyin Peng, Zhenbei Wang, Fei Qi, Chen Li, Mingyao Xu, Zilong Song, Dezhi Sun, Jun Nan
Summary: This study investigated the influence of interactions among different model natural organic matter (NOM) on ultrafiltration process. The results showed that these interactions not only changed the interception order of fluorescence fractions but also significantly affected the membrane fouling behavior.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Mao Gao, Fan Tang, Kaidi Wang, Fanjian Zeng, Yan Wang, Guangming Tian
Summary: The study investigates the hyperaccumulating mechanism of heavy metals activated or passivated by fulvic acid and humic acid, as well as the plant response triggered by these substances. Results show an increase in available Cd content in soil and Cd accumulation in plants after application of different sources of FA and HA, with the most effective being CFA, DFA, and PFA. Additionally, applications of PFA and PHA significantly increase Cd accumulation in plants compared to the blank control group.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agronomy
Inge C. Regelink, Gerwin F. Koopmans
Summary: Fertilization increased N and P uptake and grass yield, while the addition of FA or HA (200 mg C kg(-1) soil) had no effect regardless of the growth limiting nutrient. Nutrient availability was unaffected in soil porewater samples and 0.01 M CaCl2 soil extracts.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2021)
Article
Agronomy
Liudmila Tripolskaja, Asta Kazlauskaite-Jadzevice, Eugenija Baksiene, Almantas Razukas
Summary: This study aims to investigate the effects of land use on the concentrations of organic carbon, humic acid, and fulvic acid in different soil horizons. The results suggest that converting cropland to fertilized managed grassland can increase soil organic carbon sequestration, while unfertilized managed grassland has a negative impact on humic substances formation. Furthermore, different land use types also influence the types and quantities of humic substances.
Article
Environmental Sciences
Jianhua Zhu, Jia Duo, Zizhao Zhang, Liang Pei, Wenfeng Li, Rehemanjiang Wufuer
Summary: This study investigated the structural characteristics and main properties of dissolved organic matter (DOM) in farmland soils near Urumqi, China, using three-dimensional fluorescence spectroscopy (EEM) and UV-visible spectrum technology, and analyzed its possible sources and pathways through spectroscopic indices. The results showed that humic-like substances were the main composition of soil DOM, and its autogenesis characteristics were not obvious. The DOM properties in the southern region of Urumqi were higher than those in the northern region and in Fukang, China, and higher in the upper layers of the soil than in the deeper layer. Spectroscopic analysis indicated that the DOM in these regions mainly originated from microbial metabolites. These findings provide important scientific data for further research on pollutant behavior and pollution control in the region.
Article
Agronomy
Evgeny Lodygin, Evgeny Abakumov
Summary: This study compared the molecular composition of humic acids and fulvic acids in different types of soils, revealing that soil reclamation significantly increases the proportion of aromatic components while decreasing carboxyl and ester groups in the humic substance structure. Additionally, greater hydromorphism in the soils enriches humic substances with aliphatic fragments.
Article
Construction & Building Technology
Qingzhang Zhang, Jiaming He, Li Song, Kui Hu, Pengshuai Sun
Summary: This study used modeling to predict the effects of temperature on water vapor sorption isotherms in concrete. The theoretical model, combined with experimental data, predicted the influence of temperature on the absorption-desorption isotherms and hysteresis. The results showed that the hysteresis in capillary pores is greater than that in gel pores. An increase in temperature decreases the hysteresis percentage in gel pores and increases it in small capillary pores.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Agronomy
Ondrej Sedlar, Jiri Balik, Jindrich Cerny, Martin Kulhanek, Michaela Smatanova
Summary: The quality of soil organic matter is crucial for soil structure, carbon sequestration, and pollutant immobilization. A study was conducted in Central Europe to investigate the effect of fertilization on soil organic matter quality after 16-23 years of treatment. Different crop rotations and fertilization treatments were evaluated, and the results showed that the C/N ratio of applied organic fertilizers had a significant correlation with humic acid carbon (C-HA) content, C-HA/C-FA ratio, and humification index in soil. The combination of farmyard manure and mineral fertilization resulted in higher levels of humic acid carbon content, humification rate, and humification index compared to other treatments.
Article
Engineering, Environmental
Yoshifumi Nakazawa, Yoshihiko Matsui, Yusuke Hanamura, Koki Shinno, Nobutaka Shirasaki, Taku Matsushita
Article
Engineering, Environmental
Taku Matsushita, Ayako Morimoto, Taisuke Kuriyama, Eisuke Matsumoto, Yoshihiko Matsui, Nobutaka Shirasaki, Takashi Kondo, Hirokazu Takanashi, Takashi Kameya
Article
Engineering, Environmental
Hideki Takaesu, Yoshihiko Matsui, Yuki Nishimura, Taku Matsushita, Nobutaka Shirasaki
Article
Medicine, Legal
Shunto Nishikawa, Yoshihiko Matsui, Taku Matsushita, Nobutaka Shirasaki
REGULATORY TOXICOLOGY AND PHARMACOLOGY
(2019)
Article
Engineering, Environmental
Taku Matsushita, Wataru Sugita, Tomoya Ishikawa, Gang Shi, Shota Nishizawa, Yoshihiko Matsui, Nobutaka Shirasaki
Article
Engineering, Environmental
Yuanjun Zhao, Ryosuke Kitajima, Nobutaka Shirasaki, Yoshihiko Matsui, Taku Matsushita
Article
Environmental Sciences
Shota Nishizawa, Taku Matsushita, Yoshihiko Matsui, Nobutaka Shirasaki
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Akiko Nakayama, Asuka Sakamoto, Taku Matsushita, Yoshihiko Matsui, Nobutaka Shirasaki
Article
Engineering, Environmental
Yize Chen, Yoshifumi Nakazawa, Yoshihiko Matsui, Nobutaka Shirasaki, Taku Matsushita
Article
Environmental Sciences
Kentaro Narita, Yoshihiko Matsui, Taku Matsushita, Nobutaka Shirasaki
Summary: In this study, a risk prediction method was developed and used to select pesticides with a high probability of being detected in drinking water sources in Japan. The method was found to be effective in screening pesticides and selecting those with a high risk of detection. Improvements were made to the risk predictor by incorporating degradability of dry-field pesticides and current pesticide sales data, resulting in an increased rate of detection of high-risk pesticides.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Shun Saito, Yoshihiko Matsui, Yasuhiko Yamamoto, Shuhei Matsushita, Satoru Mima, Nobutaka Shirasaki, Taku Matsushita
Article
Chemistry, Medicinal
Taku Matsushita, Yuji Kikkawa, Kei Omori, Yoshihiko Matsui, Nobutaka Shirasaki
Summary: The study found that the anti-AChE activities of the organophosphorus insecticide diazinon and its major transformation product diazinon-oxon were dramatically affected by metabolism, indicating the importance of considering metabolism in toxicity assessments after oral ingestion. Monitoring and regulating diazinon-oxon in addition to diazinon in drinking water is recommended based on the observed results.
CHEMICAL RESEARCH IN TOXICOLOGY
(2021)
Article
Engineering, Environmental
D. Shirakawa, N. Shirasaki, T. Matsushita, Y. Matsui, R. Yamashita, T. Matsumura, S. Koriki
Summary: We evaluated the reduction efficiencies of PMMoV and representative human enteric viruses in four full-scale drinking water treatment plants that use CS-RSF or C-MF. The PMMoV reduction ratios in C-MF were lower than those in CS-RSF, suggesting that CS-RSF has higher efficiency in removing PMMoV. The use of high-basicity PACl increased the reduction ratios of PMMoV in C-MF. PMMoV can be a potential surrogate for human enteric viruses to assess virus removal by CS-RSF.
Article
Engineering, Environmental
Shun Saito, Yoshihiko Matsui, Nobutaka Shirasaki, Taku Matsushita
Summary: Catalytic oxidative removal of Mn2+ on activated-carbon surfaces by free chlorine has been found to be potentially effective for water treatment using micrometer-sized activated carbon. In this study, a new kinetic model was developed to describe the removal of trace substances through catalytic reactions, and it was applied to the Mn2+ removal. External-film mass transfer, adsorption, and oxidation/desorption were found to contribute similarly to the Mn2+ removal rate under practical conditions.
Article
Engineering, Environmental
N. Shirasaki, T. Matsushita, Y. Matsui, S. Koriki
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.