Effect of humic acid on the sedimentation and transport of
Request PDF | Effect of humic acid on the sedimentation and transport of nanoparticles silica in water-saturated porous media | Purpose Nano silicon particles (nSiO2) is one of the most widely ...
Humic acid-, ferrihydrite-, and aluminosilicate …
Humic acid can also be immobilized in a porous matrix using a soil-gel process, whereby a glassy matrix is produced through a series of hydrolysis and …
(PDF) Humic acid-, ferrihydrite-, and aluminosilicate …
In this study, we investigate the feasibility to produce porous media with similar hydrodynamic properties, but different surface characteristics. Four minerals (ferrihydrite, …
Humic acid-, ferrihydrite-, and aluminosilicate-coated sands …
Four minerals (ferrihydrite, kaolinite, illite, and smectite) and a humic acid were coated on silica sand grains. Coated grains were packed into columns and the hydrodynamic properties of the ...
Study of Synergetic Interactions between Uranium, Humic Acid, Silica
Fumed colloidal silica, silicon (IV) oxide 99%, and humic acid sodium salt (50-60% as humic acid) were obtained from Fisher Scientific. Stocks of HA and Si were prepared in DIW at 2000 ppm and 100 ...
Effects of humic acid and Mg2+ on morphology and
NH 4 Cl and CO(NH 2) 2 were employed as inorganic and organic N fertilizers, respectively, while humic acid (HA) was used as model humic substance. We found that for all three sized MPs (0.2, 1 and 2 µm) without HA, both types of N fertilizers decreased their transport/increased their retention in porous media (both quartz sand …
Effects of solution chemistry and humic acid on the …
As a typical DOM, humic acid (HA) ubiquitously exists in natural water, and its concentration in aqueous medium ranges from 0 to 20 mg L −1 ... Quartz sand (Standard Sand & Silica Co.) with size range of 0.425–0.600 mm was subsequently washed by DI water, 10% nitric acid (v: v) and DI water to remove the metal oxides from surface, and …
Humic Acid: Unleashing the Potential of Your Garden Soil
Soil Amendment: For granular or powdered forms, apply 2-5 pounds per 100 square feet and work it into the top 6-8 inches of soil. This is ideal during the planting season or when preparing beds. Foliar Spray: Liquid humic acid can be diluted with water and applied directly to plant leaves, providing a quick nutrient uptake boost.
Distinct effects of humic acid on transport and retention of …
Results from this study suggest that natural organic matter and solution pH are likely key factors that govern the stability and mobility of nTiO(2) in the natural aquatic environment. The distinct effects of humic acid (HA, 0-10 mg L(-1)) on the transport of titanium dioxide (rutile) nanoparticles (nTiO(2)) through saturated sand columns were …
The influence of humic acid and clay content on the …
DOI: 10.1016/j.scitotenv.2014.06.075 Corpus ID: 9407060; The influence of humic acid and clay content on the transport of polymer-coated iron nanoparticles through sand. @article{Jung2014TheIO, title={The influence of humic acid and clay content on the transport of polymer-coated iron nanoparticles through sand.}, author={Bahngmi Jung …
Surface charge and adsorption from water onto quartz sand of humic acid
At ambient temperature the adsorption of humic acid on the quartz sand seems to be controlled mainly by electrical interaction between the organic particle and the solid substrate. A correlation ...
15 Humic Acid Uses and Benefits | Wellness Mama
14. Helps Athletes Refuel. Although there are health benefits to sweatin g, active people that sweat a lot are at a higher risk for losing their body's minerals. Supplementing with humic acid is a great way for …
Assessment of the transport of polyvinylpyrrolidone-stabilised zero
The effect of humic acid (HA) on PVP-nZVI transport is shown in Fig. 6a. The elution of PVP-nZVI in silica sand was enhanced in the presence of HA. In the absence of HA, the maximum C/C 0 was only 0.71, and a considerable portion of iron was still retained in the column.
(PDF) Application of Humic Acid Bonded‐Silica as a …
A novel solid-phase extraction (SPE) sorbent, humic acid-bonded silica (HAS), was prepared. Humic acids (HAs) were grafted onto silica matrices via an amide linkage between humyl chloride and the ...
Effect of humic acid on the sedimentation and …
Effect of humic acid on the sedimentation and transport of nanoparticles silica in water-saturated porous media. Soils, Sec 4 • Ecotoxicology • Research …
Colloidal behavior of goethite nanoparticles modified with humic acid
It is possible that unadsorbed humic acid chains contributed to the mobility by coating the sand grains and providing an electrosteric barrier to particle deposition. Fig. 5 Breakthrough curves of humic acid-coated goethite nanoparticles in silica sand a at 1.70 g/L solid content and in the presence of CaCl 2 at different concentrations and b ...
Interaction of Fullerene (C60) Nanoparticles with Humic Acid …
The deposition kinetics of fullerene (C 60) nanoparticles onto bare silica surfaces and surfaces precoated with humic acid and alginate are investigated over a range of monovalent (NaCl) and divalent (CaCl 2) salt concentrations using a quartz crystal microbalance.Because simultaneous aggregation of the fullerene nanoparticles occurs, …
FAQ: Everything You Need to Know about Humic …
Humic acids form in nature whenever organic matter—from deceased plants and animals—begin to decompose, due to insects, bacteria, and fungal activity. ... (sand, silt, clay), 25% air, 25% water, and 5% organic …
Bioavailability and detoxification of cationics: I. Algal
Silica had a minor effect on the observed toxicity, whereas the clay mineral montmorillonite detoxified very effectively. The detoxification by several real-world sediments being mixtures of sand and clay was in-between silica and montmorillonite. Humic acid detoxified most effectively on weight basis.
Effect of humic acid on the sedimentation and …
Effect of humic acid on the sedimentation and transport of nanoparticles silica in water-saturated porous media. …
Humic acid-, ferrihydrite-, and aluminosilicate …
In this study, we investigate the feasibility to produce porous media with similar hydrodynamic properties, but different surface characteristics. Four minerals (ferrihydrite, kaolinite, illite, and smectite) and a humic acid were coated on silica …
(PDF) Synergetic Interactions between Uranium, Humic Acid, Silica …
The presence of humic acid, silica colloids, and SRS sediment was shown to synergistically effect the removal of U(VI). Uranium (VI) Removal at 50ppm Filtered between pH 3 and 8 for all batches
E-coli adhesion to silica in the presence of humic acid
The influence of humic acid on the adhesion of Escherichia coli to silica particles or glass surfaces was investigated. After adsorbing various amounts of humic acid to the particles or surfaces ...
Effect of humic acid on cesium sorption on silica colloids
Effect of humic acid (HA) on the sorption behaviour of 137Cs on silica colloids has been studied by batch procedure over a pH range of 3-10 and at ionic strength of 0.05 M (NaClO4).
Cotransport of uranyl carbonate loaded on amorphous colloidal silica
Uranyl carbonate (UC(VI)) is a stable form of uranyl (U(VI)) that widely coexists with amorphous colloidal silica (ACSi) and humic acid (HA) in carbonate-rich U-contaminated areas. In this context, the cotransport behavior and mechanism of UC(VI) with ACSi (100 mg L −1) and HA colloids in saturated porous media were systematically …
Simultaneous preparation of humic acid and mesoporous silica …
In this study, humic acid (HA) rich in various highly active functional groups was first synthesized by hydrothermal method using silica- and organic-rich municipal sludge, followed by mesoporous SiO 2 with high specific surface area (SSA) by roasting. The prepared HA and mesoporous SiO 2 were then used to adsorb uranium from an …
Bioavailability and detoxification of cationics: I. Algal toxicity …
The detoxification by several real-world sediments being mixtures of sand and clay was in-between silica and montmorillonite. Humic acid detoxified most effectively on weight basis. ... Polynomial relationships ('QSARs') were established for algal toxicity of MAQ in the presence of montmorillonite, silica and humic acid with carbon chain ...
Interaction between humic acid and silica in reverse …
Combined organic and inorganic fouling is a primary barrier constraining the performance of reverse osmosis (RO) membrane. In this work, we conducted a systematic study focusing on the synergetic fouling effects of silica and humic acid (HA) in RO process, and found the critical silica concentration where the fouling pattern changed …
(PDF) Use of Humic and Silica Materials as Soil
humic acid content of about 1.48% lower than t hat of the manufacturer humic (5.34%). In acid sulfate soils, humic acid play s a role in chelating the to xic elements, namely Fe and Al, to ...
Fluoride sorption by soil components: calcium carbonate, humic acid …
Aluminium speciation and pH of an acid soil in the presence of fluoride. Moore CS, Ritchie GSP Journal of soil science, 39(1):1-8, 01 Mar 1988