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Relevant bibliographies by topics / Soil absorption and adsorption – Rwanda

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Academic literature on the topic 'Soil absorption and adsorption – Rwanda'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Soil absorption and adsorption – Rwanda"

1

Arocha, Marco A., Ben J. McCoy, and Alan P. Jackman. "VOC immobilization in soil by adsorption, absorption and encapsulation." Journal of Hazardous Materials 51, no. 1-3 (1996): 131–49. http://dx.doi.org/10.1016/s0304-3894(96)01824-9.

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2

Kellman, Martin. "Nutrient retention by tropical ecosystems: soil adsorption and plant absorption as synergistic processes." Journal of Tropical Ecology 18, no. 6 (2002): 877–95. http://dx.doi.org/10.1017/s0266467402002572.

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Laboratory and growth-chamber experiments were used to evaluate whether there was evidence for nutrient retention by tropical terrestrial ecosystems being a two-stage process involving first soil adsorption and then plant absorption. Quartz sand with and without Fe and Al oxide coatings were treated with nutrient solution, then subjected to a leaching regime that simulated early wet-season conditions at a tropical location. Nutrient cations applied were rapidly lost in the initial leaches from quartz sand without oxide coatings, but showed a more gradual loss from oxide-coated sand, indicating

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3

Mei, Ying, Hang Zhou, Xiao-Han Zhu, et al. "Isothermal adsorption characteristics of bioretention media for fecal Escherichia coli." Thermal Science 24, no. 4 (2020): 2427–36. http://dx.doi.org/10.2298/tsci2004427m.

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Rainfall runoff contains a huge number of pathogenic bacteria that seriously deteriorate water quality. Bioretention is an effective approach to removal of pathogenic bacteria from rainwater. This study uses sandy soil, fly ash, slag, sandy soil+5% fly ash, and sandy soil+5% slag as media to evaluate the adsorption of fecal Escherichia coli. The mechanisms of the five media conform to the Langmuir?s isotherm adsorption equation, and a pseudo-first-order kinetic model is adopted to reveal the absorption kinetics.

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Nie, Zhaojun, Jinfeng Li, Haiyang Liu, et al. "Adsorption kinetic characteristics of molybdenum in yellow-brown soil in response to pH and phosphate." Open Chemistry 18, no. 1 (2020): 663–68. http://dx.doi.org/10.1515/chem-2020-0501.

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AbstractMolybdenum (Mo) adsorption by acidic yellow-brown soil was investigated as a function of a pH (1–13) and the equilibrium of P solution (0, 3.1, and 31 mg L−1) concentration. Mo adsorption by acidic yellow-brown soil increased within the pH range from 1 to 4. Above pH 4, Mo adsorption decreases with an increase in pH. The maximum adsorption was found between pH 2 and 4. Competitive adsorption experiments showed that the equilibrium sorption data fitted into Langmuir and Freundlich isotherms. The sorption data of Mo on the acidic yellow-brown soil fitted well with the Langmuir isotherm m

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Pham, Tien Duc, Hoang Hiep Nguyen, Ngoc Viet Nguyen, et al. "Adsorptive Removal of Copper by Using Surfactant Modified Laterite Soil." Journal of Chemistry 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/1986071.

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Removal of copper ion (Cu2+) by using surfactant modified laterite (SML) was investigated in the present study. Characterizations of laterite were examined by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma mass spectrometry (ICP-MS), and total carbon analysis. The optimum conditions for removal of Cu2+ by adsorption using SML were systematically studied and found as pH 6, contact time 90 min, adsorbent dosage 5 mg/mL, and ionic strength 10 mM NaCl. The equilibrium concentration of copper ions was measured by flame atomic absorption spectrom

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Bairwa, Rajendra, Mamta ., Nintu Mandal, Nilanjan Chattopadhyaya, and Neeraj Bagoria. "Adsorption and Desorption of zinc in soil and its implication." International Journal of Agricultural Invention 3, no. 02 (2018): 191–202. http://dx.doi.org/10.46492/ijai/2018.3.2.17.

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Zn availability mostly regulated through adsorption-desorption on soil (or adsorbent). Fly ash (FA) application influence on zinc adsorption-desorption in recommended chemical fertilizer (RDF) and farmyard manure (FYM) treatments of acidic Inceptisols of Assam. Zinc adsorption was better explained by Freundlich over the Langmuir adsorption equation. Adsorption was greatest in the treatment receiving FA only at 15 t ha−1 and least in the treatment receiving RDF 50 percent + FYM 5 t ha−1 + FA 5 t ha−1. Ni and Zn co-sorption to aluminium oxides (γ-Al2O3) in binary-sorbate systems were compared to

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7

Rahmayanti, Maya, Guliston Abdillah, Sri Juari Santosa, and Sutarno Sutarno. "Application of Humic Acid Isolated From Kalimatan Peat Soil Modifying Magnetite for Recovery of Gold." Jurnal Bahan Alam Terbarukan 8, no. 2 (2020): 77–83. http://dx.doi.org/10.15294/jbat.v8i2.20392.

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Humic acid modifying magnetite particles (Mag-HA) were developed for recovery of gold from chloride solution (HAuCl4). The Mag-HA particles were prepared by co-precipitation procedure with Fe(III) and Fe(II) chloride salts, sodium hydroxide, and humic acid. FTIR characterization for Mag-HA after modification indicated the presence of the specific absorption for functional groups of humic acid and Fe-O bonds, though with lower intensity. The Mag-HA particles exhibited a typical superparamagnetic characteristic with a saturation magnetization of 66.99 emu/g. The Mag-HA particles were applied for

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Miroshnychenko, N. N., and O. A. Kutz. "Selective absorption of heavy metals by soil and humic acids at different pH levels." Fundamental and Applied Soil Science 17, no. 1-2 (2016): 74–82. http://dx.doi.org/10.15421/041607.

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Studying processes of sorption-desorption of heavy metals from soil and its individual components allow to predict long-term effects under conditions of multielement contamination. Cations of heavy metals are showing competitive relationship due to their specific adsorption by components of the soil absorption complex, in particular humic acids. Interaction of chernozem podzolized heavy loam, isolated preparation of humic acids and soil residue after its removal with the solution which contain sulphates of Zn, Cd, Ni, Co and Cu in equal ratio were simulated at different pH levels. The task of

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9

Smiles, D. E., and C. J. Smith. "Absorption of gypsum solution by a potassic soil: a data set." Soil Research 46, no. 1 (2008): 67. http://dx.doi.org/10.1071/sr07103.

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Reliable experimental data required to test hydrodynamic dispersion/chemical reaction models are scarce. This paper provides such a dataset based on absorption of gypsum solution by horizontal columns of relatively dry soil with an initially high exchangeable potassium ratio. Initial and boundary conditions are well defined. Water and cation concentration profiles measured after 200 and 400 min lay on single curves when graphed in terms of distance divided by the square root of time. Cation exchange occurred close to the intake surface and calcium derived from the gypsum was confined to a narr

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10

Nduwumuremyi, Athanase, Vicky Ruganzu, Jayne Njeri Mugwe, and Athanase Cyamweshi Rusanganwa. "Effects of Unburned Lime on Soil pH and Base Cations in Acidic Soil." ISRN Soil Science 2013 (November 26, 2013): 1–7. http://dx.doi.org/10.1155/2013/707569.

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Sustainable agriculture is threatened by the widespread soil acidity in many arable lands of Rwanda. The aim of this study was to determine the quality of unburned limes and their effects on soil acidity and base cations in acidic soils of high land of Buberuka. The lime materials used were agricultural burned lime and three unburned lime materials, Karongi, Musanze, and Rusizi. The test crop was Irish Potato. All lime materials were analyzed for Calcium Carbonate Equivalent (CCE) and Fineness. A field trial in Randomized Complete Block Design was established in 2011 at Rwerere research statio

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