us3155526ainfluence of sulfate anion on immobilization behavior of
Synergistic Adsorption of Cd(II) with Sulfate/Phosphate on
1 Synergistic Adsorption of Cd(II) with Sulfate/Phosphate on 2 Ferrihydrite An in Situ 3 ATR-FTIR/2D-COS Study 4 Jing Liu1 2 3 Runliang Zhu 1 2 Xiaoliang Liang Lingya Ma1 2 Xiaoju Lin1 2 3 Jianxi Zhu 5 Hongping He1 2 3 Stephen C. Parker4 Marco Molinari5 4 6 1. Key Laboratory of Mineralogy and Metallogeny Guangzhou Institute of Geochemistry Chinese Academy of
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Adsorption from solutionimoafo
Adsorption from solution Kinetic modeling of molybdenum sorption and transport in soils. In this investigation batch and column experiments were conducted to investigate the molybdenum (Mo) sorption and transport processes on a neutral-pH soil (Webster loam) and an acidic soil (Mahan sand) in Ca 2 and K background solutions. Batch results showed that the adsorption of Mo was strongly non
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Immobilization of Diglycol Amic Acid on Silica Gel for
A novel adsorbent with a diglycol amic acid frame has been synthesized for the recovery of rare earth elements. The adsorbent has the ability to selectively adsorb rare earth metal ions from solutions containing high concentrations of base metal ions in a low pH region.
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Optical detection of di- and triphosphate anions with
in the presence of sulfate 18 . The anion sensing in this case relied on the sulfate affinity of the cyclopeptide and on the propensity of this receptor to bind a sulfate ion in the form of a sandwich-type 2 1 complexes rendering the presence of an ad-ditional component in the solution unnecessary.
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Key Engineering Materials Vol. 617 Scientific.Net
In this study anion-exchange reaction between hydrocalmite-like hydrate including chloride anion (Ca 4 Al 2 (OH) 12 ·Cl 2 ·4H 2 O Cl-HC) and chromate anion (CrO 4 2-) is examined. CrO 4 2- is immobilized in various hydrated forms which are varied with an increasing in the additive ratio of CaCrO 4 to Cl-HC.
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Effect of Cu(II) on the stability of oxyanion-substituted
Mar 22 2018 · Schwertmannite a Fe(III)-oxyhydroxysulfate mineral formed in acidic (pH 3 4) iron- and sulfate-rich acid mine drainage (AMD) environments tends to undergo phase transformations with changes in pH and redox condition which may depend on the presence of various trace anions and cations. In the present study the effects of Cu(II) on the stability of arsenate- chromate- and
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Behavior of Sulfate Ions daring Formation of Anodic Oxide
The incorporation of sulfate into anodic film formed on aluminium in an H2SO4–MgSO4 solution was investigated by infrared spectroanalysis using the compensation method. The sulfate content of the f
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Treatability Study of In Situ Technologies for Remediation
typical anionic adsorption behavior with greater adsorption at lower pH at lower chromate concentration and at lower concentrations of other competing anions. Competitive anions sulfate in particular (at 50 mg/L) suppressed chromate adsorption by up to 50 . Chromate adsorption was not influenced by inorganic colloids.
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Effects of anions on calcium arsenate crystalline
May 01 2018 · The anions including chloride sulfate and carbonate have an effect on the calcium arsenate crystallization reaction. Chloride and sulfate contribute to the formation of calcium arsenate while carbonate would prevent the reaction. The arsenic leachate concentration of Ca-As compounds is related to the grain size of calcium arsenate crystals.
Get PriceMono and co-immobilization of imidazolium ionic liquids on
Mono and co-immobilization of imidazolium ionic liquids on silica effects of the substituted groups on the adsorption behavior of 2 4-dinitrophenol† Zhike Wang ab Honglian Ge a Xueyuan Wang b Cunling Ye b and Shunli Fana Ionic liquid modified silicas with high adsorption capacity for phenols prompt us to deeply explore the
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The Soil Sulfur CycleAn Introduction to SOIL
Apr 14 2017 · Immobilization Immobilization of inorganic or mineralized forms of sulfur occur when low-sulfur energy rich organic materials are added to the soil. Immobilization is thought to be the same as Nitrogen energy rich material stimulates microbe growth and inorganic sulfate
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Adaptation of anion exchange process to by IJRET Editor
The behavior of uranyl sulphate anion and trivalent rare earth cations present in the started leach liquor towards anion exchange resin has been studied using Amberlite IRA 402 Cl resin.
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Effect of Cu(II) on the stability of oxyanion-substituted
Mar 22 2018 · Schwertmannite a Fe(III)-oxyhydroxysulfate mineral formed in acidic (pH 3 4) iron- and sulfate-rich acid mine drainage (AMD) environments tends to undergo phase transformations with changes in pH and redox condition which may depend on the presence of various trace anions and cations. In the present study the effects of Cu(II) on the stability of arsenate- chromate- and
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Adsorption from solutionimoafo
Adsorption from solution Kinetic modeling of molybdenum sorption and transport in soils. In this investigation batch and column experiments were conducted to investigate the molybdenum (Mo) sorption and transport processes on a neutral-pH soil (Webster loam) and an acidic soil (Mahan sand) in Ca 2 and K background solutions. Batch results showed that the adsorption of Mo was strongly non
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ER-1741 Project OverviewSERDP and ESTCP
The in situ immobilization of Pb in shooting range soils can be accomplished through the application of phosphate (PO 4) however the impact of this treatment on the mobility and bioaccessibility of Sb is unknown. Further the ability to predict Sb fate and behavior in contaminated soils or as influenced by treatment technologies has not
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USB2In-situ systems and methods for the
The various embodiments of the present invention relate generally to remediation of contaminants in the environment and more specifically to improved chemistries systems and methods for in-situ immobilization of contaminants in various media. More particularly an aspect of the present invention is directed to an in-situ method for immobilizing a contaminant in a medium comprising
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Altered swelling and ion fluxes in articular cartilage as
1. Introduction. Articular cartilage is a highly specialized tissue covering bone epiphyses in synovial joints 1–3 .It serves as a load-bearing material of the joints providing excellent lubrication and great wear characteristics .Besides it bears compressive and shear stresses owing to cyclic and intermittent loads .The main feature of cartilage is the lack of blood vessels and
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ER-1741 Project OverviewSERDP and ESTCP
The in situ immobilization of Pb in shooting range soils can be accomplished through the application of phosphate (PO 4) however the impact of this treatment on the mobility and bioaccessibility of Sb is unknown. Further the ability to predict Sb fate and behavior in contaminated soils or as influenced by treatment technologies has not
Get Price
Immobilization of Diglycol Amic Acid on Silica Gel for
A novel adsorbent with a diglycol amic acid frame has been synthesized for the recovery of rare earth elements. The adsorbent has the ability to selectively adsorb rare earth metal ions from solutions containing high concentrations of base metal ions in a low pH region.
Get Price
Selective ene‐reductase immobilization to magnetic
Nov 27 2020 · The immobilization of the ene‐reductase on MNPs allows the reuse and simplified handling of oxidoreductases with this immobilization approach. The binding behavior of (HR) 4 ‐ER on MNPs the relative activities after immobilization and the
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Co-immobilization of 1-vinyl-3-octadecylimidazolium
Co-immobilization of 1-vinyl-3-octadecylimidazolium cations and p-styrenesulphonate anions on silica and their anti-interference performance for the adsorption of naphthols† Zhike Wang a Cunling Ye b Lingyun Chena and Haili Wua Adsorptive removals of naphthols are ofteninterfered by some coexisting anions of aqueous solutions. In this
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Immobilization of Cr(VI) by sulphate green rust and
Aug 14 2020 · Chromate Cr(VI) contamination in soil and groundwater poses serious threat to living organisms and environmental health worldwide. Sulphate green rust (GRSO4) a naturally occurring mixed-valent iron layered double hydroxide has shown to be highly effective in the reduction of Cr(VI) to poorly soluble Cr(III) giving promise for its use as reactant for in situ remedial applications.
Get PriceReview on Cement Stabilization/Solidification of Municipal
4.2. AFt and AFm. AFt phase 3CaO·Al 2 O 3 ·3CaSO 4 ·32H 2 O is one of the main hydration products of cement but it can be easily changed into AFm (Ca 2 Al(OH) 6 ·0.5X·H 2 O) when chloride or sulfate is insufficient. As shown in Figure 1 AFt phases are chemically and mineralogically complex in which columns of Ca 6 Al(OH) 6 ·24H 2 O are lines of Al(OH) 6 3− octahedrally bonded with
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Sulfate O4S-2PubChem
Sulfate is a sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid. It has a role as a human metabolite a Saccharomyces cerevisiae metabolite and a cofactor. It is a sulfur oxoanion a sulfur oxide an inorganic anion and a divalent inorganic anion
Get PriceAnion exchange resin as support for invertase immobilization
exchange resin when used as support in enzyme. immobilization. By mixing 100mg of resin with 27mg of. invertase (pI = 4.0) in buffer solution (pH 4.6 25°C) stirred. at 100rpm an adsorption of
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Optical detection of di- and triphosphate anions with
in the presence of sulfate 18 . The anion sensing in this case relied on the sulfate affinity of the cyclopeptide and on the propensity of this receptor to bind a sulfate ion in the form of a sandwich-type 2 1 complexes rendering the presence of an ad-ditional component in the solution unnecessary.
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Assessing the anion type effect on the hydro-mechanical
immobilization of hazardous materials such as radioactive wastes (Mishra et al. 2011 Cui et al. 2012 Chen and Huang 2013). So in this research smectite was used as source material for all tests.
Get PriceER-1741 Project OverviewSERDP and ESTCP
The in situ immobilization of Pb in shooting range soils can be accomplished through the application of phosphate (PO 4) however the impact of this treatment on the mobility and bioaccessibility of Sb is unknown. Further the ability to predict Sb fate and behavior in contaminated soils or as influenced by treatment technologies has not
Get Price
Immobilization of β‐Galactosidase on Fibrous Matrix by
The production of galacto‐oligosaccharides (GOS) from lactose by Aspergillus oryzae β‐galactosidase immobilized on cotton cloth was studied. A novel method of enzyme immobilization involving PEI–enzyme aggregate formation and growth of aggregates on individual fibrils of cotton cloth leading to multilayer immobilization of the enzyme was developed.
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