EDTA-Fe(III) Fenton-like oxidation for the degradation
Hu et al. (Hu et al., 2018) observed a promotion of % OH production by Fe(III)-EDTA in Fenton reactions, which simultaneously might be degraded to some extent. Nevertheless, the double roles of ...
The synergistic effect of EDTA-Fe and 1-naphthaleneacetic …
In this study, the phytohormones 1-naphthaleneacetic acid (NAA) was used in conjunction with EDTA-Fe to increase the biomass and carbohydrate content of Scenedesmus obliquus.It was found that after the addition of 20 mg·L −1 NAA and 2 × 10 −5 mol·L −1 EDTA-Fe, the biomass of S. obliquus is up to 3.32 g·L −1 which is …
Pathway of FeEDTA transformation and its impact on …
Meanwhile, the byproduct Fe(III)EDTA, formed via the oxidation of Fe(II)EDTA by oxygen, is biologically reduced to Fe(II)EDTA by iron-reducing bacteria. The principle of the CABR process has been ...
Decomplexation of Ni-EDTA enhanced by Fe(III) reduction in …
To evaluate the effect of AC on the Fenton oxidation system, the degradation efficiency of Ni-EDTA were compared in five different reaction systems: single AC, single H 2 O 2, AC/H 2 O 2, Fe(Ⅱ)/H 2 O 2, and AC/Fe(Ⅱ)/H 2 O 2.As shown in Fig. 1 a, the removal rates of Ni-EDTA by single AC and single H 2 O 2 within 60 min are both less …
Highly effective photocatalytic decomplexation of Cu-EDTA by MIL-53(Fe
To better understand the effects of different preparation times on the lifetime of photogenerated electron-hole pairs and photoactivity of the MIL-53(Fe), the transient photocurrent response was measured, as shown in Fig. 1 c. Compared with other two samples, the photocurrent density of the MIL-53(Fe)-13 was the highest, suggesting that …
Performance and Microbial Community Analysis of an …
The biological reduction of ferrous ethylenediaminetetraacetic acid (EDTA-Fe II-NO and EDTA-Fe III) is an important process in the integrated electrobiofilm reduction method, …
Taping into the super power and magic appeal of ultrasound …
Chlorophenol is a widely used organic compound, and the environmental and health problems caused by it have being worsened in recent years. This study used 2,4,6-trichlorophenol (2,4,6-TCP) as the target pollutant, and employed ultrasound (US) enhanced zero-valent iron (Fe 0)/EDTA/air system (FEA), namely US/FEA, to remove 2,4,6 …
MEASURING EDTA USING HPLC
and reliable method for EDTA quantitation in most liquid samples . The method is based on forming a complex of EDTA with Fe(III), which has strong UV absorption maximums at …
The sol–gel synthesis of perovskites by an EDTA
Download : Download full-size image Different stages of an EDTA/citrate-gel based synthesis process for mixed conducting (Ba 0.5 Sr 0.5)(Fe 0.8 Zn 0.2)O 3−δ of cubic perovskite structure are elucidated. The perovskite-type oxide is formed already at moderate temperatures at around 700. °C via nanoscale solid state reactions between …
N2O production in the FeII(EDTA)-NO reduction process
The carbon source and pH are important parameters for Fe(II)(EDTA)-NO (the production of absorption) reduction and N2O emissions from BioDeNOx systems. Batch tests were performed to evaluate the ...
A Simple Kit for the Good-Manufacturing-Practice Production …
The content of Disodium EDTA dihydrate in the EDTA kit was measured using High-Pressure Liquid Chromatography analysis (HPLC), based on a complexation reaction between EDTA and Fe 3+ (formation constant for Fe-EDTA, K f = 1.3 × 10 25), reversed phase column and ion pair reagent, as described in [14,15,16]. The HPLC …
EDTA Fe Chelate Supplier & Chemical Distributor | Redox
Edta Ferric Monosodium Salt Trihydrate EDTA-Fe-13 EDTA 13% Fe Sodium Iron Ethylenediaminetetraacetic Acid Sodium ferric ethylenediaminetetraacetate Ethylenediaminetetraacetic acid, iron(III) monosodium salt Ethylenediaminetetraacetic Acid, Iron(3) Monosodium Salt Sodium iron (III) EDTA EDTA-FeNa Ethylenediamine …
pH dependence of persulfate activation by EDTA/Fe(III) …
The ability of free ferrous ion activated persulfate (S 2 O 8 2−) to generate sulfate radicals (SO 4 −) for the oxidation of trichloroethylene (TCE) is limited by the scavenging of SO 4 − with excess Fe 2+ and a quick conversion of Fe 2+ to Fe 3+.This study investigated the applicability of ethylene-diamine-tetra-acetic acid (EDTA) …
Impact of metal ions and EDTA on photofermentative hydrogen production
The influence of different concentrations of iron, Fe (30–110 μM), molybdenum, Mo (8–20 μM), and ethylenediaminetetraacetic acid, EDTA (0.1–0.5 g L −1) on the photofermentative hydrogen production and bacterial growth by Rhodobacter sphaeroides 158 DSM was investigated and discussed. A blend of pre-treated brewery …
The synergistic effect of EDTA-Fe and 1
Semantic Scholar extracted view of "The synergistic effect of EDTA-Fe and 1-naphthaleneacetic acid on the growth and carbohydrate content of Scenedesmus obliquus" by Wenhuan Cai et al. ... The oil extract of the carotenoids may be used for the further production of a microencapsulated product with the aim of targeted delivery to the …
Flow-chart of procedure for the preparation of EDTA-derived …
Abstract: This paper reports on the synthesis and characterization of Fe-doped ZnO thin films deposited onto gold coated glass substrates, using electrochemical deposition …
Kinetics of [Fe II (edta)] Oxidation by Molecular Oxygen …
A detailed mechanistic study of the reaction of [Fe II (edta)] (edta = ethylenediaminetetraacetate) with molecular oxygen was conducted and the oxidation …
Insights into the roles of EDTA in enhancing the bioavailability of Fe
The production of N 2 was systematically monitored and recorded daily using a gas flowmeter. Both reactors were shielded by light-blocking fabric to impede the proliferation of photosynthetic microorganisms. ... Adding EDTA-Fe(Ⅲ) could significantly maintain the stability of the reactor under the condition of rising NLR. Moreover, EDTA …
Industrial Synthesis of EDTA
Industrial Synthesis of EDTA. Today EDTA is synthesized on an industrial scale from ethylenediamine, formaldehyde, and a source of cyanide such as HCN or NaCN. The sodium salt of EDTA forms first in both …
O2 Activation in a Dinuclear Fe (II)/EDTA Complex: Spin …
We study the cleavage of O2 in gas phase [(EDTAH)Fe(O2)Fe(EDTAH)]2−, a proposed intermediate in the aqueous Fe(II)-to-Fe(III) autoxidation reaction in the presence of atmospheric dioxygen and EDTA ligand. The role of the exchange coupling between the locally high-spin Fe centers in the O−O dissociation is investigated. Using results from …
Ethylenediaminetetraacetic Acid (EDTA)
Ethylenediaminetetraacetic acid (EDTA) is a medication used in the management and treatment of heavy metal toxicity. It is in the chelating class of drugs. This activity outlines and reviews the indications, actions, and contraindications for EDTA as a valuable agent in managing lead toxicity. This activity will highlight the mechanism of …
EDTA-functionalized Fe3O4 nanoparticles
The EDTA functionalization shows that the EDTA exhibits high chemical affinity for Fe 3 O 4 nanoparticles, even at room temperature. Moreover, the EDTA …
How to Make a Production Flow Chart for Manufacturing …
A production flow chart is used to illustrate the manufacturing process of a product. It shows the stages, equipment used and quality control checks where you'll check the product to ensure it meets quality expectations. If the quality is lacking or there has been any damage en route, these errors will be corrected before returning to ...
Enhanced Reduction of Fe (II)EDTA-NO/Fe (III)EDTA in NO
Experimental results clearly demonstrated that this method significantly promotes the bioreduction rate of Fe(II)EDTA-NO (0.313 mmol·L –1 ·h –1) and Fe(III) ... Biological removal of nitrogen oxides by microalgae, a promising strategy from nitrogen oxides to protein production. Bioresource Technology 2019, 292, 122037.
Ethylenediaminetetraacetic Acid (EDTA): Properties, …
Ethylenediaminetetraacetic acid, better known as EDTA, is an aminopolycarboxylic acid with the formula C10H16N2O8. It is a white solid that is …
Effect of pH, light, and temperature on Fe–EDTA chelation and Fe
A final outcome of this work was a demonstration of the importance of temperature on the photochemical cycling of iron. Many iron chelates, such as Fe–EDTA, undergo photochemical ligand to metal charge transfer reactions in which the iron is reduced to Fe(II) and the ligand is oxidatively degraded Jones and Long, 1952, Faust …
Enhanced surfactin fermentation via advanced repeated …
Impact of the EDTA/Fe 2+ ratio with addition of 0.04 mM Fe 2+ (A) ... EDTA was found to be a crucial factor to further improve the effectiveness of Fe 2+ to enhance cell growth and surfactin production. The addition of EDTA–Fe 2+ complex at 0.2 mM achieved a remarkable high surfactin yield of 5.67 g/L within 3 days of fermentation, …
Insights into the roles of EDTA in enhancing the …
The results showed that EDTA-Fe(Ⅲ) can prevent precipitation encasing anammox granular sludge, which can enhance substrate transport and Fe(Ⅲ) …
Effect of ethylenediaminetetraacetic acid (EDTA) on the …
The production of biogas by anaerobic digestion from organic materials is a well-investigated and well-established process. ... can be enhanced by EDTA-Fe(Ⅲ), thereby improving the stability of anammox system. Fe(Ⅲ) and EDTA-Fe(Ⅲ) were added to two parallel up-flow anaerobic sludge blanket (UASB) reactors, respectively. After 186 …
Frontiers | Importance of Iron Complexation for Fenton …
This Fe redox cycling results in elevated Fe(II) concentrations at later stages of the reaction; although this has negligible impact upon the kinetics of Fe(II) oxidation, when H 2 O 2 is present in excess of Fe, this continual flux of Fe(II)EDTA results in ongoing HO • production even after the oxidation of Fe(II)EDTA appears to be complete ...