Removal of boron from ceramic industry wastewater by adsorption–flocculation mechanism using palm oil mill boiler (POMB) bottom ash and polymer. Water Research 43(13): 3326-3334. Halim, A.A., 2012. Boron removal from aqueous solutions using curcumin-aided electrocoagulation.

Distill the boron sample as the methyl borate sn:l collect the distillate in a platinum evaporating dish, add l ml of 1:1 HCl, 2.00 ml of the curoumin reagent (0.005 p curcumin, 0.5 gm oxalic acid in. 50 ml of ethanol), slld then evaporate this solu tion at 55°±1°c. The color intensity is measured.

The greatest boron removal was found in the investigation for batch and fixed-bed adsorption characteristics of boron on curcumin-impregnated activated carbon (Cur-AC) at pH 5.5 and 120 min of ...

2.1. Reasons for the Difficulties of Boron Removal from Water Boron is a trace element, which tends to form compounds by covalent bonds in nature due to its small atomic radius (about 0.85–0.90 Å) and high ionization energy (the first ionization potential is 8.296 eV). Boron in aqueous solutions usually exists in the form of

The use of boron-based compounds by reaction with curcumin, it improves its stability in vivo without loss of bioactivity. Recently, a study showed that the drug bortezomib co-administered with curcumin determines the synergistic and therapeutic activity for the treatment of multiple myeloma. Moreover, the combination of 2-aminoethyl …

Effect of freezing temperature on salinity removal and boron removal. The effects of freezing seawater for 44 h at different freezing temperatures (− 10 °C, − 15 °C, − 20 °C, − 25 °C, − 30 °C) on the distribution and removal of salinity (Fig. 2a) and boron (Fig. 2b) in ice/water are shown in Fig. 2.As the temperature decreased, the boron removal …

The boron removal by the AMF process can be divided into the following four main steps: (1) the resin absorbs the boron in the solution; (2) the microfiltration …

To remove the water produced during the condensation reaction scavengers like alkyl borates are employed. Unless removed, the water can react with the diketone complex, thereby reducing the curcumin yield. The boron complex dissociates into curcumin under slightly acidic conditions. Curcumin

The adsorbents for boron removal are classified into the ones functionalized by chelating groups, the ones on the basis of clays or metal oxide. Three subgroups …

Boron–curcumin and iron–curcumin complexes have shown superior photostability in solution. This increased photostability was found to be attributed to the coordination structures and the removal of β-diketone group in curcumin . Cobalt also increases stability of curcumin by binding to its enolic form. Binding to cobalt ...

1. Introduction. Boron is a trace element which is widely distributed in earth's hydrosphere and lithosphere. In the lithosphere, boron can be found in soil or rocks, and its average concentration is 10 mg/kg in earth crust, only taking up 0.001% of the elemental composition of the earth [1], [2].In the hydrosphere, its average concentration is about …

Boron Removal from Aqueous Solution Using Curcumin-impregnated Activated Carbon . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up with and we'll email you a reset link. ... Boron Removal from Aqueous Solution Using Curcumin ...

Another observation was that the curcumin component degrades after the removal of the acid ligand that was attached to it through boron. A detailed kinetic analysis of the ligand decomposition ...

To remove the water produced during the condensation reaction scavengers like alkyl borates are employed. Unless removed, the water can react with the diketone complex, thereby reducing the curcumin yield. The boron complex dissociates into curcumin under slightly acidic conditions. Curcumin from this reaction mixture can be …

For example, EC-Ni can remove 99.2% of boron from a 10 mg·L −1 boron solution within 2 h at pH = 8 and a current density of 1.25 mA·cm −2, while EC-Fe/Ni can remove 95% of boron from a 10 mg·L −1 boron solution within a shorter reaction time (60 min) at a pH of 8 and current density of 3.75 mA·cm −2 . The type and concentration of ...

Boron overabundance in aquatic environment raises severe concerns about the environment and human health because it is toxic to various crops and induces many human and animal diseases with long-term consequences. In response to the boron pollution of water resources and the difficulty of eliminating boron from water for …

Given that boron removal from water by electrocoagulation is a variable of different processes including electrochemical processes, coagulation and flotation. ... Boron removal from aqueous solutions using curcumin-aided electrocoagulation. Middle-East J. Sci. Res., 11 (2012), pp. 583-588. View in Scopus Google Scholar [7]

Boron Removal by Sorption on Modified Chitosan Hydrogel Beads. The results showed that the biosorbent effectively removed boric acid from the aqueous medium at neutral pH over a sorption time of 2 h and the liquid/hydrogel ratio of 20 mL/g, achieving a maximum sorption capacity near 190 mg/g. Expand.

The optimum current density (CD), pH and dose of curcumin were. Abstract: This study seeks to find a new method to enhance the percentage of boron removed from aqueous solution by using the electrocoagulation process in the presence of curcumin. The optimum current density (CD), pH and dose of curcumin were

Last Updated: 07 Jan 2024. Request PDF | Boron removal from aqueous solutions using curcumin-aided electrocoagulation | This study seeks to find a new …

Corpus ID: 27643516; Boron removal from aqueous solution using curcumin-impregnated activated carbon @article{Halim2013BoronRF, title={Boron removal from aqueous solution using curcumin-impregnated activated carbon}, author={Azhar Abdul Halim and Nor Alia Roslan and Nor Shamsiah Yaacub and Mohd Talib Latif}, journal={Sains Malaysiana}, …

The highest boron removal in fixed-bed column adsorption was achieved up to 99% for the first 5 min at an inlet concentration of 890 mg/L and a flow rate of 8.0 …

The preparation of the curcumin–acetic acid reagent is one of the key factors affecting the reproducibility of the curcumin method, and previous studies have reached contradictory conclusions regarding its stability (Uppström, 1968, Goldman et al., 1975).We compared the stability of the reagent stored at room temperature (~ 23 °C) …

Results: The results showed 75% of boron removal, while the optimum parameters for boron removal were observed at pH 2.8, 132.05 ppm poly aluminum chloride dose and 1161.4 ppm curcumin dose ...

Aim: Application of response surface methodology (RSM) to determine optimum parameters in the coagulation-flocculation process aided by curcumin for boron removal from aqueous solution was investigated. Methodology: Different parameters such as pH, coagulant dosage, and curcumin dosage that effect boron removal were tested. …

Contaminants present in the wastewater stream Boron removal started to decline beyond a curcumin are treated either by chemical reactions and precipitation dose of 0.050 g. This decline may, reflect on increased or by physical and chemical attachment to colloidal competition from polymeric aluminium hydroxide, which materials generated by the ...

The highest boron removal in fixed-bed column adsorption was achieved up to 99% for the first 5 min at an inlet concentration of 890 mg/L and a flow rate of 8.0 mL/min. Thomas …

Methods for boron removal from aqueous solutions — A review. JoannaWolska, MarekBryjak. Show more. Add to Mendeley. …

the removal of boron from water using zinc anode, Desalination 310 (2013) 122 – 129 (this issue). [101] H.F. Ayyildiz, H. Kara, Boron removal by ion exchange membranes, Desalination

This study was conducted to investigate the batch and fixed-bed adsorption properties of boron on curcumin-impregnated activated carbon (Cur-AC). The maximum boron removal was obtained at pH5.5 and 120 min of contact time. Langmuir and Freundlich isotherm models were applied and it was determined that the experimental data …