The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The media and structural optimization in bioretention systems play important roles in removing pollutants from urban stormwater runoff. Ten bioretention basins were constructed by adding water treatment residual (WTR), green zeolite, flyash, and coconut bran to traditional bioretention soil (65% sand + 30% soil + 5% sawdust, by mass), respectively, through mixing or layering. The steady infiltration...
Carbonaceous greenhouse gases (i.e., CO₂, CH₄ ) have often reported to be emitted from the surfaces of reservoirs, while other non-carbonaceous greenhouse gases are not available to many reservoirs. In this study, the spatiotemporal variability of N₂O emissions from Xin’anjiang Reservoir was investigated at the different regions over a 13-month period using the method of the static floating chambers...
S. occidentalis can be used in pharmacology and vegetation restoration. A pot experiment was conducted to study the effects of biochar and mycorrhizal fungus inoculation on plant growth and heavy metal accumulation. The mycorrhizal infection rate was increased by apple branch biochar but decreased by coconut husk iron-modified biochar. Conversely, soil pH was not affected by mycorrhizal inoculation...
Atrazine is a widely used herbicide, and because of its potential to seriously pollute soil and water resources, has attracted widespread attention. In this study, the bacterial strain LY-1 was isolated and identified as the species Arthrobacter. At present, there are many different atrazine-degrading bacteria that have been screened out, including Arthrobacter sp., Pseudomonas sp., and Shewanella...
This study aims to explore the temporal and spatial variations of soil total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP), and the relationships between C/N, C/P and TOC, TN, and TP in bioretention tanks. Two bioretention tanks (tank No. 1: depth of 0~20 cm was vacant aquifer layer, 20~90cm, filled with planting soil, 90~105 cm, filled with gravel; tank No. 3: 0~20 cm was aquifer...
Immobilized sulfate-reducing bacteria (SRB) in polyvinyl alcohol (PVA)-sodium alginate matrix were applied as biosorbents to remove cadmium (Cd) from aqueous solutions. Multiple characterization techniques including scanning electron microscope (SEM)-energy dispersive spectrometer (EDS), and Fourier transform infrared (FT-IR) spectra indicate that immobilized beads provided a suitable microenvironment...
Based on 2005-15 water quality data and measured flood data in 2006-12 at Tongguan Bridge Section, storm-period water-quality characteristics and different time-scale water-quality characteristics have been analyzed for the Weihe River and its basins. The interannual and quarterly mean concentrations of COD, NH₃-N, DO, and river pH value are calculated to evaluate pollution characteristics. Water...
The effect of sludge biochars obtained at different temperatures on the adsorption of Cd(II) by loess in northwestern China was investigated using the batch equilibrium method. The results showed that the pseudo second-order kinetic model can describe the kinetics of Cd(II) adsorption on the sludge biocharamended loess very well. The adsorption of Cd(II) by loess reached equilibrium in 6h. However,...
The structural configuration of bioretention plays an important role in the consumption and purification of nitrogen pollutants in rainfall runoff. Three layered bioretention tanks – 7#, 9#, and 10# – with artificial packing layers of fly ash mixing sand, blast furnace slag, and planting soil, respectively, were selected for intermittent and continuous operational tests. All load-reduction rates of...
We studied the effects of selenite on growth and anthocyanin accumulation in purple lettuce. The results will ascertain which selenite concentration is more advantageous to the purple lettuce and help study the effect of selenite on the molecular mechanism of plant anthocyanin accumulation using the quantitative reverse transcription polymerase chain reaction (qRT-PCR). In this study, the low selenite...
In this work, the significantly enhanced photocatalytic performances and higher reaction rate of the hierarchical ZnO microspheres – initially prepared by a solvothermal method without surfactants or templates and decorated with Ag nanoparticles by a photoreduction method – were found for the degradation of methylene blue (MB) under both ultraviolet (UV) and visible light irradiation. Various characterization...
Land-use/land-cover change (LUCC) is an important issue of research into global change. To identify the spatiotemporal change and the driving mechanism of land use at the regional scale is of great significance to environmental preservation and economic development in the whole locality. In order to analyze the spatiotemporal change of land cover in Fuxian Lake watershed for the last four decades,...
We investigated the effects of high-productivity plant hybrid giant Napier (HGN)-derived biochars prepared at different pyrolysis temperatures on Cd migration in a soil-cabbage system contaminated with Cd and butachlor. The results showed that with the enhancement amount of biochar applied, soil pH and electrical conductivity (EC) increased, whereas the available Cd content dropped significantly (P<0...
This paper examines the potential value of phosphate-solubilizing bacteria(PSB) in the dissolution of soil phosphorus and in the subsequent immobilization of lead (Pb), both in bacterial growth medium and in soil. In growth medium, Pseudomonas chlororaphis showed both phosphate-solubilizing and Pb-immobilizing capability, the immobilization of Pb was attributed to pyromorphite formation, as indicated...
Dissimilatory Fe(III) reduction has a profound infl uence on the global cycling of elements and the decontamination of pollutants, depending on the interaction of various environmental conditions. Hydrogelencapsulated goethite/soil was prepared in this study, and anaerobic incubation was conducted to investigate the biological Fe reduction of different encapsulated aggregates by Shewanella oneidensis...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.