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Article
Adsorption Performance and Mechanism of Synthetic Schwertmannite to Remove Low-Concentration Fluorine in Water
Fluorine (F) in water has a negative effect on the environment and human health. Schwertmannite has potential remediation to contamination in solution. In this study, the adsorption mechanism and influencing f...
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Article
Nitrogen species control the interaction between NO3--N reduction and aniline degradation and microbial community structure in the oxic-anoxic transition zone
Contrary to the fact that NO3−-N can serve as electron acceptor to promote organics degradation, it was also found NO3−-N reduction does not necessarily promote organics degradation. We speculate nitrogen (N) spe...
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Article
Iodine enrichment and the underlying mechanism in deep groundwater in the Cangzhou Region, North China
The lack of information on the origin and behavior of iodine in deep groundwater restricts the development and use of groundwater resources. To address this issue, the Cangzhou region in the eastern North Chin...
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Article
Sources and hydrogeological conditions that cause high iodine concentrations in deep groundwater in the Zhangwei watershed, North China Plain
The sources and primary mechanisms of high iodine concentration in deep groundwater are rarely reported, thereby restricting the development and utilization of the related groundwater resources. To address the...
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Article
Adsorptive Removal of Low-Concentration Cr(VI) in Aqueous Solution by Mg–Al Layered Double Oxides
To explore the adsorption removal mechanism of Mg–Al layered double oxides (LDOs) for low-concentration (≤ 5 mg L−1) Cr(VI), the adsorption kinetics, adsorption isotherms and its influencing factors were studied ...
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Article
The correlation analyses of bacterial community composition and spatial factors between freshwater and sediment in Poyang Lake wetland by using artificial neural network (ANN) modeling
As one of the most important components of the lake ecosystem, microorganisms from the freshwater and sediment play an important role in many ecological processes. However, the difference and correlation of ba...
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Article
Batch Adsorption and Column Leaching Studies of Aniline in Chinese Loess Under Different Hydrochemical Conditions
Through batch adsorption and column leaching experiments, this study aimed to investigate the adsorption and transport behavior of aniline in loess and related mechanism under different hydrochemical condition...
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Article
Microbial Heterotrophic Nitrification-Aerobic Denitrification Dominates Simultaneous Removal of Aniline and Ammonium in Aquatic Ecosystems
A heterotrophic nitrification-aerobic denitrification (HN-AD) mixed culture was established as a simulated aquatic ecosystem to investigate the simultaneous removal of aniline and ammonium, as well as the succ...
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Article
A lab-scale study on heterotrophic nitrification-aerobic denitrification for nitrogen control in aquatic ecosystem
Nitrogen (N) loss is generally caused by denitrification under anaerobic conditions and the N loss in the heterotrophic nitrification_aerobic denitrification (HN_AD) system is of recent research interest. However...
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Article
Laboratory tests on effects of wetting–drying cycles and loess layer thickness on release and transport of loess colloidal particles in artificial loess columns
Although it is known that wetting–drying (W–D) cycles can enhance the release and transport of soil colloidal particles (SCPs), the effects of cycle times and soil layer thickness on the enhancement are open q...
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Article
Batch Adsorption and Column Transport Studies of 2,4,6-Trinitrotoluene in Chinese Loess
In present study, batch and column tests were conducted to investigate the kinetic and thermodynamic characteristics of the adsorption and transport of 2,4,6-trinitrotoluene (TNT) in Chinese loess with specifi...
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Article
Dynamic characteristics of heavy metal accumulation in the farmland soil over **aoqinling gold-mining region, Shaanxi, China
Determining dynamic characteristics and their controllers of heavy metal accumulation in soils has important consequences in the prevention and treatment of soil heavy metal pollution. In the present study, th...
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Article
Controls on the spatial distribution of iodine in groundwater in the Hebei Plain, China
In the Hebei Plain of North China, 70% of the inhabitants depend on groundwater for drinking water. Little is known regarding high-iodine concentrations in groundwater because there have been few systematic st...
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Article
Nitrate Removal from Groundwater by Heterotrophic/Autotrophic Denitrification Using Easily Degradable Organics and Nano-Zero Valent Iron as Co-Electron Donors
Heterotrophic/autotrophic denitrification (HAD) is an effective approach to remove nitrate from contaminated groundwater. To improve its performance, easily degradable organics (methanol, ethanol, oxalic acid,...
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Article
Chemical properties of dissolved organic matter derived from sugarcane rind and the impacts on copper adsorption onto red soil
Dissolved organic matter (DOM), as the most active organic carbon in the soil, has a coherent affinity with heavy metals from inherent and exogenous sources. Although the important roles of DOM in the adsorpti...
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Article
Drying–wetting cycles facilitated mobilization and transport of metal-rich colloidal particles from exposed mine tailing into soil in a gold mining region along the Silk Road
Exposed mine tailings could release substantial amounts of toxic metal-rich colloidal particles into soils during drying–wetting (D–W) cycles, but the mechanisms are still incompletely understood. In this stu...
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Article
Mobilization and transport of metal-rich colloidal particles from mine tailings into soil under transient chemical and physical conditions
Exposed mine tailing wastes with considerable heavy metals can release hazardous colloidal particles into soil under transient chemical and physical conditions. Two-layered packed columns with tailings above a...
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Article
Effects of fresh and degraded dissolved organic matter derived from maize straw on copper sorption onto farmland loess
The nature of dissolved organic matter (DOM) strongly influences heavy metal sorption onto soil. However, the constituents and structures of DOM change continuously as DOM is subjected to microbial decompositi...
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Article
Amplified solubilization effects of inherent dissolved organic matter releasing from less-humified sediment on phenanthrene sorption
Soil/sediment organic matter (SOM) releasing with inherent dissolved organic matter (DOM) formed in solution was confirmed both in rhizosphere sediment (S) and uncultivated sediment (P) water systems, and corr...
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Article
Intensify Removal of Nitrobenzene from Aqueous Solution Using Nano-Zero Valent Iron/Granular Activated Carbon Composite as Fenton-Like Catalyst
To obtain a good catalytic effect of removing refractory organics from water by Fenton process, granular activated carbon (GAC) supported nano-zero valent iron (nZVI) composite (nZVI/GAC) was prepared by adsor...
