Article
Engineering, Environmental
Yang Yue, Yanxiang Wang, Ce Qu, Xiaodan Xu
Summary: This study investigated the use of modified PAN-ACF, PAN-ACF/TiO2, and PAN-ACF/ZnO adsorbents for the removal of PNP pollutants in wastewater, with adsorption efficiency up to 98.05%. Additionally, ACFs loaded with nano-TiO2 and nano-ZnO photocatalysts exhibited high photocatalytic degradation rates of PNP under UV light irradiation, reaching 99.85% and 98.31% respectively.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Yingnan Wang, Zhanbin Huang, Linlin Sheng, Yan Ma
Summary: A new heavy metal adsorbent based on humic acid residue modified by sulfuric acid (HAS-SO4) was developed, showing improved adsorption capacity for Hg2+ and Pb2+. The adsorption process followed Langmuir isotherm and pseudo-second-order kinetic models. HAS-SO4 effectively passivated Hg2+ and Pb2+ in contaminated soil, reducing their leaching risk and changing their morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Liang Dai, Weifan Zhao, Bigui Wei, Kang Zhang, Tao Han
Summary: This study utilized humic acid extracted from excess sludge to adsorb Pb2+ from a solution. The research found that the presence of co-existing cations negatively affected the adsorption, while increasing solution pH led to enhanced Pb2+ adsorption by the humic acid. The adsorption process involved both physical and chemical adsorption mechanisms.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Chemistry, Physical
Yanfeng Huang, Yuliang Tu, Jinxiong Wu, Xiangjing Liang, Dongye Zhao, Patrycja Boguta, Xintai Su
Summary: In this study, commercial humic acid was used as an extractant to treat high concentration Cr-contaminated soil, showing a high removal rate of Cr(VI) with low economic cost.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Yibo Zhao, Lin Wang, Linchao Zhu, Fei Gao, Xinru Xu, Jingyi Yang
Summary: Steel slag was examined for its potential to remove p-nitrophenol from simulated sewage through batch adsorption and fixed-bed column absorption experiments. The results showed that steel slag exhibited excellent adsorption capacity and regeneration efficiency, indicating its potential application in wastewater treatment.
ENVIRONMENTAL RESEARCH
(2022)
Article
Plant Sciences
Marcelo R. Volf, Ciro A. Rosolem
Summary: The study found that coating phosphorus fertilizers with polymer or complexing them with humic acid does not increase phosphorus availability or diffusivity in soil, as these processes are mainly driven by soil characteristics. Therefore, the potential of these controlled-release phosphorus fertilizers in increasing phosphorus use efficiency is low.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Environmental Sciences
Wenbo Deng, Yajing Wang, Wenjuan Liu
Summary: The adsorption of DOM and Pb(II) on Mn-substituted goethite samples was investigated. The results showed that Mn substitution increased the specific surface area of goethite, resulting in more adsorption of DOM and Pb(II). However, Mn substitution also weakened the electrostatic attraction between DOM and the minerals, reducing the adsorption capacity of goethite for DOM. Overall, Mn-goethite can be used to sequester DOM and remediate soil contaminated with PTEs.
ENVIRONMENTAL RESEARCH
(2023)
Review
Chemistry, Physical
M. J. Ahmed, B. H. Hameed, E. H. Hummadi
Summary: This article reviews the chemical modification of crop straws such as wheat, rice, corn, barley, etc., discussing commonly used modification methods and their application in water contaminant adsorption, as well as considering issues such as regeneration, reuse, competitive adsorption behavior, etc.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Xing-Liang Cheng, Xu Xia, Qian-Qian Xu, Jun Wang, Jing-Chen Sun, Yongxing Zhang, Shan-Shan Li
Summary: In this study, FeSe2 with high electronic conductivity and large active area was successfully prepared and exhibited high sensitivity and low detection limit for PNP and ONP, showing impressive electrochemical performance attributed to the combined effect of adsorption and catalysis. The constructed FeSe2 modified electrode demonstrated superior selectivity, stability, reproducibility, and enabled the electrochemical detection of organic pollutants in water samples from subsidence areas.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Environmental Sciences
Yuankang Jiang, Zhenggang Wang, Zhiping Zhu, Mingpeng He, Pan Zhou
Summary: In this study, Zr-MOFs were used to effectively remove humic acid from makeup water, and the adsorption mechanism was investigated. The results indicated that physical adsorption and hydrogen bonding interactions were the main driving forces of HA adsorption.
Article
Green & Sustainable Science & Technology
Yanan Qin, Junmei Luo, Yumeng Zhao, Congcong Yao, Yingyi Li, Qingda An, Zuoyi Xiao, Shangru Zhai
Summary: In this study, a composite biochar with enriched surface functional groups was prepared from shrimp shell and rice husk for efficient adsorption of p-nitrophenol. The composite biochar exhibited excellent adsorption performance in a wide pH range, and the pseudo-second-order kinetic model and Langmuir isotherm model were suitable for describing the adsorption behavior. The adsorption mechanisms involved chemisorption, physical adsorption, and pore filling. The tailored surface chemistry and high-efficiency of the composite biochar make it a potential candidate for water body remediation via adsorption process.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Kun Hou, Xinshuai Xu, Yong Xiang, Xiangmeng Chen, Su Shiung Lam, Mu. Naushad, Christian Sonne, Shengbo Ge
Summary: Developing an adsorbent with a fast adsorption rate is important for ensuring high adsorption capacity and selectivity of gold ions. In this study, two humic acid modified phenolic resin (SHAR and NSHAR) were prepared using a simple two-step method with water as solvent. These adsorbents can efficiently recover Au(III) from mixed metal solutions. The adsorption behavior and mechanism of Au(III) on SHAR and NSHAR were investigated, and it was found that the process belongs to multi-molecular chemical adsorption. The adsorption of Au(III) on SHAR and NSHAR is endothermic and spontaneous. Unlike conventional adsorbents, Au(III) is reduced to zero valent gold and deposited on the adsorbent. NSHAR achieves adsorption equilibrium in just 10 minutes with a high adsorption capacity of 927 mg center dot g(-1) (compared to SHAR, which takes 50 minutes and has a capacity of 1440 mg center dot g(-1)). This research provides a new approach for the quick and efficient recovery of gold.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Environmental Sciences
Yuqi Wang, Ying Zhang, Yuna Li, Luyao Ma, Zhiguang Niu
Summary: This study investigated the partition characteristics and adsorption mechanisms of eight polyhalogenated carbazoles (PHCZs) in aquatic systems. The results showed that suspended particulate matter (SPM) has a high adsorption capacity for PHCZs, with the adsorption amount influenced by the halogen species, degree of halogenation, and substitution position. The adsorption mechanisms involve van der Waals force, π-π interactions, hydrogen bonding, and nonspecific hydrophobic interactions. The findings highlight the significant role of SPM in contaminant transport and emphasize the importance of considering SPM in environmental investigations of PHCZs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Yu Zhao, Peiqing Yuan, Xinru Xu, Jingyi Yang
Summary: ZIF-8-PhIm was prepared for the removal of p-nitrophenol from petrochemical wastewater. It exhibited stronger interactions, a multistage pore structure, increased hydrophilicity, and higher adsorption capacity compared to ZIF-8 materials. The adsorption process was described by the Langmuir isotherm and pseudo-second-order kinetic models, and hydrogen bonding and p-p interactions played a dominant role.
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
Engineering, Civil
Seyyed Hasan Hosseini, Hossein Hashemi, Rolf Larsson, Ronny Berndtsson
Summary: This study develops a method to merge data from two X-WRs in Dalby and Helsingborg to improve the accuracy of rainfall observations. The models calibrated at a 5-min scale significantly outperformed existing models for all zones, except Zone III which had persistent issues. The lowest-level elevation angle for both X-WRs showed the most erroneous results.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Ziteng Luo, Jianzhi Niu, Shuqin He, Linus Zhang, Xiongwen Chen, Bo Tan, Di Wang, Ronny Berndtsson
Summary: This study aimed to explore the distribution of soil water content in the presence of root-enhanced preferential flow and analyze the correlations between root traits and preferential flow features. The results showed that tree species with different root distribution patterns have varied impacts on soil moisture redistribution, and the effects of root traits are more apparent under lower rainfall amount.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Environmental Sciences
Dauren Mussabek, Anna Soderman, Tomomi Imura, Kenneth M. Persson, Kei Nakagawa, Lutz Ahrens, Ronny Berndtsson
Summary: Groundwater contamination caused by the use of AFFF containing PFAS was investigated in southern Sweden. PFAS concentrations ranged from 20 to 20,000 ng L-1, with PFOS and PFHxS being the most prominent compounds. PFAS chain length was found to affect the distribution and transport in groundwater. PFAS-AFFF use during fire-training and equipment tests was identified as a contributor to PFAS contamination, with estimated emission amounts varying based on the number of training sessions per year.
Article
Green & Sustainable Science & Technology
Rajia Kchaou, Salah Benyoussef, Sihem Jebari, Kalthoum Harbaoui, Ronny Berndtsson
Summary: Mixed cropping systems can enhance crop growth and productivity, reduce the need for synthetic fertilizers, and provide important ecosystem services as an adaptive agricultural strategy in view of climate change.
Article
Green & Sustainable Science & Technology
Sami Ghordoyee Milan, Zahra Kayhomayoon, Naser Arya Azar, Ronny Berndtsson, Mohammad Reza Ramezani, Hamid Kardan Moghaddam
Summary: The Groundwater footprint index (GFI) is a crucial indicator for evaluating the sustainability of groundwater aquifers. Machine learning models can help predict future GFI and support the planning of resilient water consumption. In this study, four models were used to predict GFI for 178 Iranian aquifers, with the inclusion of eight input variables showing the best results.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
Article
Environmental Sciences
Behshid Khodaei, Hossein Hashemi, Shokoufeh Salimi, Ronny Berndtsson
Summary: This research uses InSAR technique to measure the deformation of the peatland's surface in south Sweden in response to recent seasonal and extreme weather conditions. The results show significant uplift in most of the investigated peat areas, indicating large carbon uptake by the underground peat. This emphasizes the importance of InSAR as an efficient and accurate technique to monitor the deformation rate of peatlands, which have a vital role in the global carbon cycle.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Chemistry, Analytical
Hedia Chakroun, Nessrine Zemni, Ali Benhmid, Vetiya Dellaly, Fairouz Slama, Fethi Bouksila, Ronny Berndtsson
Summary: Estimating crop evapotranspiration (ETa) is crucial for water resource management. This study compares the ETa estimated by the S-SEBI model using Landsat 8 data and the HYDRUS-1D model in Tunisia. The results show that the HYDRUS model is a cost-effective tool for analyzing water flow and salt movement in the crop root zone. The S-SEBI model performed well in estimating ETa, with higher accuracy for rainfed barley compared to drip irrigated potato.
Article
Chemistry, Analytical
Dimaghi Schwamback, Magnus Persson, Ronny Berndtsson, Luis Eduardo Bertotto, Alex Naoki Asato Kobayashi, Edson Cezar Wendland
Summary: Automated soil moisture systems using low-cost sensors are commonly used in precision agriculture. This study compares the trade-off between cost and accuracy of low-cost and commercial soil moisture sensors. The results indicate that low-cost sensors may have reduced accuracy but can provide more detailed spatial and temporal observations at a lower cost, making them suitable for short-term and limited-budget projects.
Article
Forestry
Di Wang, Jianzhi Niu, Yubo Miao, Tao Yang, Ronny Berndtsson
Summary: Soil physicochemical properties and macropore spatial structure were found to affect saturated hydraulic conductivity (Ks). Pedo-transfer functions (PTFs) were used to predict Ks in six typical forestlands in Northern China. The results showed that Ks decreased with increasing soil depth and was influenced by factors such as soil composition and macropore structure. PTFs containing bulk density, organic matter content, and total phosphorus had the highest predictability for Ks.
Review
Environmental Sciences
Kaldibek Abdiyev, Seitkhan Azat, Erzhan Kuldeyev, Darkhan Ybyraiymkul, Sana Kabdrakhmanova, Ronny Berndtsson, Bostandyk Khalkhabai, Ainur Kabdrakhmanova, Shynggyskhan Sultakhan
Summary: Providing safe drinking water to people in developing countries is an urgent worldwide issue. Slow sand filters can efficiently provide safe drinking water to rural communities without central water supply, especially by acting as a biological filter. However, factors like low temperature and reduced sand depth can affect the efficiency of these filters, and further research is needed in these areas, specifically for developing countries.
Article
Environmental Sciences
Farzaneh Soltani, Saman Javadi, Abbas Roozbahani, Ali Reza Massah Bavani, Golmar Golmohammadi, Ronny Berndtsson, Sami Ghordoyee Milan, Rahimeh Maghsoudi
Summary: Assessing water resources status is crucial for long-term planning. This study focuses on evaluating the effects of climate change on water resources in the Shazand plain in Iran, which has experienced significant declines in streamflow and groundwater levels. The results predict a substantial decrease in river discharges and groundwater levels in this region under future climate conditions, emphasizing the need for sustainable management methods to mitigate these effects.
Article
Geosciences, Multidisciplinary
Abdul Baser Qasimi, Vahid Isazade, Ronny Berndtsson
Summary: This study analyzed flood susceptibility in the Amu Darya River Basin in Badakhshan Province, Afghanistan using frequency ratio and MaxEnt modeling. The results showed that rainfall, land use, distance to river, and soil type were the most important parameters for evaluating flood sensitivity.
Article
Engineering, Civil
Dharmaveer Singh, Kunal Karan, Sudhir Kumar Singh, Pankaj Chauhan, Ronny Berndtsson
Summary: This study investigates the influence of morphometric factors and extreme precipitation events on hydrological responses and fluvial flooding susceptibility in the Brahmani River Basin, India. The most vulnerable sub-basin, Jenapur, is identified through the analysis of morphometric criteria, Standardized Precipitation Index, extreme precipitation indices, and historical flood records. The findings will contribute to a better understanding of flood mechanisms in the Brahmani River Basin and the development of flood mitigation practices for the Jenapur sub-basin.
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH
(2023)
Article
Water Resources
Zahra Kayhomayoon, Naser Arya Azar, Sami Ghordoyee Milan, Ronny Berndtsson, Sajad Najafi Marghmaleki
Summary: This study used machine learning models to predict hydroelectric energy production and found that the random forest model performed the best in terms of prediction performance, while the linear support vector regression model had the highest prediction performance. The results of this research showed that machine learning models can be used as an essential tool for decision-making in sustainable hydropower production.
APPLIED WATER SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Di Wang, Jianzhi Niu, Tao Yang, Yubo Miao, Linus Zhang, Xiongwen Chen, Zhiping Fan, Zhengyu Dai, Haoyang Wu, Shujian Yang, Qihuang Qiu, Ronny Berndtsson
Summary: This study investigates the effects of plantation forests and natural secondary forests on water infiltration. The results show that plantation forests decrease infiltration capacity and increase water retention capacity, while natural secondary forests have the opposite effect. Soil physical properties, roots, and gravel occurrence all affect soil infiltration. Preferential flow is the main infiltration type, with different waterflow paths for different reforestation approaches.
