soil pH Articles

  • Bioremediation applied to high pH contaminated soil washing slurry

    BioFuture Ltd. in conjunction with General Smontaggi SpA have used applied environmental engineering and bioaugmentation to remediate hydrocarbon contaminated soil washing slurry. The soil washing slurry had been treated using lime to dry and stabilise it for transport to special landfill for disposal. The starting pH was 12.55 and it was successfully bioremediated so that it could be used as a ...


    By Biofuture Ltd

  • Bioremediation of soil

    In our experience, Bioremediation is best accomplished with Bio-augmentation, the addition of large numbers of selected micro-organisms grown in the production laboratory. In addition to bio-augmentation, several physical and chemical parameters must be controlled in order to obtain optimal growth and maximum degradation of soil contaminants. The major factors that are controlled during ...

  • Comparing soil chemistries of leached and nonleached copper‐amended soils

    Leaching metal‐spiked samples has been proposed as a means to reduce the artifacts of the spiking procedure (e.g., salt effect, increased metal solubility) that can artificially increase metal bioaccessibility and toxicity in laboratory ecotoxicity tests. The effects on soil chemistry from leaching Cu‐spiked samples were investigated by comparing chemistries of freshly spiked samples to samples ...


    By John Wiley & Sons, Ltd.

  • Soil Washing

    Introduction: Soil washing is a water-based process for scrubbing soils ex situ to remove contaminants. The process removes contaminants from soils in one of two ways: By dissolving or suspending them in the wash solution (which can be sustained by chemical manipulation of pH for a period of time). By concentrating them into a smaller volume of soil through particle size ...

  • The effect of pH on the toxicity of ZnO nanoparticles to Folsomia candida in amended field soil

    The effect of soil pH on the toxicity of 30 nm ZnO to Folsomia candida was assessed in Dorset field soils with pHCaCl2 adjusted to 4.31, 5.71 and 6.39. To unravel the contribution of particle size and dissolved Zn, 200 nm ZnO and ZnCl2 were tested. Zn sorption increased with increasing pH and Freundlich kf values ranged from 98.9 to 333 (L/kg)1/n for 30 nm ZnO and from 64.3 to 187 (L/kg)1/n ...


    By John Wiley & Sons, Ltd.

  • The effect of soil properties on the toxicity of silver to the soil nitrification process

    Silver (Ag) is being increasingly used in a range of consumer products, predominately as an antimicrobial agent, leading to a higher likelihood of its release into the environment. This study investigated the toxicity of Ag to the soil nitrification process in a European and Australian soils in both leached and unleached conditions. Overall, leaching of the soils was found to have a minimal ...


    By John Wiley & Sons, Ltd.

  • Properties and Behavior of Inorganics in Contaminated Soil

    Often, specific technologies may be ruled out, or the list of potential technologies may be immediately narrowed, on the basis of the presence or absence of one or more of the chemical groups. The relative amounts of each may tend to favor certain technologies. Metals may be found in the elemental form, but more often they are found as salts mixed in the soil. At the present time, treatment ...

  • Soil Flushing

    Introduction In situ soil flushing is the extraction of contaminants from the soil with water or other suitable aqueous solutions. Soil flushing is accomplished by passing the extraction fluid through in-place soils using an injection or infiltration process. Extraction fluids must be recovered from the underlying aquifer and, when possible, they are recycled. Cosolvent Enhancement Cosolvent ...

  • Relationships between soil properties and toxicity of copper and nickel to bok choy and tomato in Chinese soils

    The toxicity of copper (Cu) and nickel (Ni) to bok choy and tomato shoot growth was investigated in a wide range of Chinese soils with and without leaching with artificial rainwater. The results showed that the variations of Ni toxicity induced by soil properties were wider than that of Cu toxicity to both tomato and bok choy plant growth. Leaching generally decreased the toxicity of Cu and Ni ...


    By John Wiley & Sons, Ltd.

  • Influence of soil pH on the toxicity of zinc oxide nanoparticles to the terrestrial isopod Porcellionides pruinosus

    The effects of soil pH on the toxicity of ZnO nanoparticles (NPs) to the terrestrial isopod Porcellionides pruinosus were evaluated. Isopods were exposed to a natural soil amended with CaCO3 to reach three different pHCaCl2 levels (4.5, 6.2 and 7.3) and standard Lufa 2.2 soil (pH 5.5) spiked with ZnO NPs (30 nm), non‐nano ZnO (200 nm) and ionic Zn as ZnCl2. Toxicity was expressed based on ...


    By John Wiley & Sons, Ltd.

  • Effect of OSE(II)-Enhanced Soil Washing(OESW) for TPH -Contaminated Soil Remediation

    The objectives of this study were to perform potentially suitable active agent that solubilize total petroleum hydrocarbon (TPH) present as contaminants and to evaluate the optimal range of process parameters that can increase the removal efficiency in OSE(II)-enhanced soil washing (OESW) pilot tests. Used experimental method for solubilisation of TPH by using OSE(II) was batch experiments. The ...

  • Metal‐based nanoparticles in soil: Fate, behavior, and effects on soil invertebrates

    Metal‐based nanoparticles (NPs) (e.g., silver, zinc oxide, titanium dioxide, iron oxide) are being widely used in the nanotechnology industry. Because of the release of particles from NP‐containing products, it is likely that NPs will enter the soil compartment, especially through land application of sewage sludge derived from wastewater treatment. This review presents an overview of the ...


    By John Wiley & Sons, Ltd.

  • Influence of soil properties and soil leaching on the toxicity of ionic silver to plants

    Silver (Ag) has been shown to exhibit antimicrobial properties and as a result it is being increasingly used in a wide range of consumer products. Due to these uses, there is an increased likelihood that Ag may enter the environment, predominately via land application of biosolids or irrigation with treated wastewater effluent. The aim of this study was to investigate the toxicity of Ag to two ...


    By John Wiley & Sons, Ltd.

  • THE INFLUENCE OF Ca AND pH ON THE UPTAKE AND EFFECTS OF Cd IN FOLSOMIA CANDIDA EXPOSED TO SIMPLIFIED SOIL SOLUTIONS

    The present study aimed to quantify the components of a biotic ligand model (BLM) for the effects of Cd on Folsomia candida (Collembola). Assuming that soil pore water is the main route of exposure and to exclude the effects of soil particles on metal availability, animals were exposed for seven days to different Cd concentrations between 0.1 and 100 mM in simplified soil solutions at ...


    By John Wiley & Sons, Ltd.

  • Soil Analysis: Are You Testing Your Soil?

    Soil is one of the most important assets for a farmer, and there is a wide variety of types, each one with its own properties and each with a more suitable kind of crops. No matter what kind it is needs to be as healthy as possible for a successful production. That’s why farmers need to ...


    By GR Trailers LLC

  • Effects of soil solution`s constituents on proton NMR relaxometry of soil samples

    Proton nuclear magnetic resonance (1H NMR) relaxometry has been used to analyze pore size distributions of wet porous samples. To make this method applicable to soil samples, knowledge about contribution from the soil solution to the total proton relaxation is needed. We extracted soil solutions from nine soil samples and determined transverse proton relaxation rates, the concentration of Fe, Mn, ...

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • pH control for enhanced reductive bioremediation of chlorinated solvent source zones

    Enhanced reductive dehalogenation is an attractive treatment technology for in situ remediation of chlorinated solvent DNAPL source areas. Reductive dehalogenation is an acid-forming process with hydrochloric acid and also organic acids from fermentation of the electron donors typically building up in the source zone during remediation. This can lead to groundwater acidification thereby ...


    By True Blue Technologies, Inc.

  • Transfer model of lead in soil‐carrot (Daucus carota L.) system and its food safety thresholds in soil

    Reliable empirical models describing lead (Pb) transfer in soil‐plant systems are needed to improve soil environmental quality standards. A greenhouse experiment was conducted to develop soil‐plant transfer models to predict Pb concentrations in carrot (Daucus carota L.). Soil thresholds for food safety were then derived inversely using the prediction model in view of the maximum allowable ...


    By John Wiley & Sons, Ltd.

  • Persistence and sorption of imazapyr in three Argentinean soils

    Imazapyr is a herbicide widely used for weed control in imidazolinone‐tolerant sunflower. Imazapyr has a high potential for leaching into groundwater because it is highly water‐soluble, persistent in soil, and only weakly sorbed by soils. There is a lack of information available in Argentina concerning groundwater leaching of imazapyr. Therefore, the objective of the present study was to ...


    By John Wiley & Sons, Ltd.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you