Soil Solution
Corrosion Behavior of X70 and X80 Pipeline Steels in Simulated Soil Solution
... The samples were first placed in the simulated soil solution for 48 h under the AC with a certain density. The work electrodes were held in the test solution for 0.5 h to achieve an electrochemically ...
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Effects of Stray AC Interference on Corrosion Behavior of X70 Pipeline Steel in a Simulated Marine Soil Solution
... Figures 6 and 7 are corrosion morphology images of X70 samples under AC interference with various current densities in Dagang simulated soil solution and 3.5% NaCl solution. After 24-hour immersion ...
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Cathodic Protection of X100 Pipeline Steel in Simulated Soil Solution
... the solution has a large effect on the cathodic protection potential of the pipeline ...same solution, the more negative the optimal cathodic protection potential of X80 ...simulated soil ...
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Nitrogen to phosphorus ratio of plant biomass versus soil solution in a tropical pioneer tree, Ficus insipida
... The present study was conducted on seedlings, the largest of which had a final plant dry mass of ;30 g (Fig. 1A, B). The stems of these plants were clearly not woody structures in the same sense as the boles of mature ...
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Corrosion Behavior of X100 Pipeline Steel and Its Heat-Affected Zones in Simulated Alkaline Soil Solution
... The microstructure changes underwent by the heat-affected zones (HAZ) of a X100 pipeline steel and the corrosion behavior of these zones and the base steel were studied in a simulated alkaline soil ...
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A Comparison of Cathodic Protection Parameters with High-Strength Pipeline Steels in Soil Solution
... alkaline soil solution has been used to simulate the soil in Dagang city, which is an important oil-producing area in ...China. Soil-simulating solutions were replaced the field soil to ...
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Relationship between phosphorus concentration in soil solution and phosphorus in shoots of barley
... in soil (Matula 2010, 2011). The de- rived concentrations in soil solution are close to the lower limit of adequate concentration in soil solution derived from phosphorus content in ...
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Diagnostics of boron deficiency for plants in reference to boron concentration in the soil solution
... to soil mineralogical composition as well as the content of available boron in soil (Biggar and Fireman 1960, Singh 1964, Goldberg and Glaubig 1986, Nicholaichuk et ...the soil solution by ...
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Kinetics and thermodynamics of carbon steel corrosion in different types of soil solution
... is soil corrosion. Factors that influence soil corrosion includes soil type, moisture content, supply of oxygen, redox potential, pH value, soil resistivity, and microbial ...of soil ...
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Spatially resolved soil solution chemistry in a central European atmospherically polluted high-elevation catchment
... measured soil solution chemistries; (ii) determine the effects of variable base cation content of soil solutions, soil granulometry and aluminum contents over the belowground carbon (C) and ...
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[V.] The soil solution and the mineral constituents of the soil
... the soil solution, because it immediately reacts with the comparatively large mass of minerals present (phosphoric acid with basic compounds of calcium, magnesium, iron, and aluminium ; potash with the ...
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Effect of HCO3- Concentration on the Corrosion Behaviour of X80 Pipeline Steel in Simulated Soil Solution
... reflected in the anode region of the polarization curve. The reactive equation is shown in Eqs. (1)–(5). According to the E-PH diagram of Fe-water system[30], when pH was 8.5 and the potential was between -0.7V to -0.8V ...
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Estimation of electrical conductivity of a soil solution from the monitored TDR data and an extracted soil solution
... the soil, based on the data obtained by means of time domain reflectometry, the relationship between the volumetric water content, the apparent electrical conducti- vity, and the soil solution ...
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SECM Investigation of the Effects of Hydrogen on the Pitting Processes of X70 Carbon Steel in Simulated Soil Solution
... An X70 carbon steel cylinder (d = 2.0 mm, 0.04% C, 1.46% Mn, 0.003% S, 0.008% P and 0.24% Si) spot-welded to a copper wire and masked with epoxy resin was used as the working electrode (substrate). A platinum disk and ...
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Soybean Root Growth in Acid Subsoils in Relation to Magnesium Additions and Soil Solution Chemistry
... the soil solution, and increased Ca 2+ activity may be a factor mitigating the Al toxicity to root ...with solution Ca 2+ (Table ...of soil solution Ca 2+ ...
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Comparison of Machine Learning Regression Methods to Simulate NO3 Flux in Soil Solution under Potato Crops
... These results suggests that the proposed 6-inputs LS-SVM performed best for general diagnostic of N leach- ing risk considering soil texture, local meteorological condition and N fertilisation rates. Further ...
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Effect of Alternating Stray Current and Stress on the Corrosion Behavior of X80 Pipeline Steel in Soil Simulated Solution
... NaCl solution and simulated Dagang soil solution under different alternating current (AC) electrical densities was studied using the weight loss method, and was tested and analyzed using the ...
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Soil chemistry equilibrium as influenced by solution volume and concentration
... the soil and the hydraulic pressure ...the soil solution and then to ion exchange within preferential flow ...of solution concentration ...
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Fabrication of Sugar Palm Fiber/Andisol Soil Composites for Iron(III) ion Removal in Aqueous Solution
... In this study, the XRD characterization of treated materials and composite was performed to evaluate the components of each material and composite which they were compared to the JCPDS standard. The XRD patterns of AndS, ...
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Separation of acid-soluble constituents of soil humic acids by dissolution in alkaline urea solution and precipitation with acid
... HCl to reach a pH of 1.0. The dark-colored precipitates were obtained by centrifugation at 10,000×g for 10 min and washed four times with 0.01 M HCl and once with ultrapure water. The resultant precipitates were freeze- ...
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