calcium phosphate based adsorbent for fluoride removal

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Simultaneous removal of ammonium and phosphate from ...

15-10-2014· In this study, natural calcium-rich attapulgite (NCAP) was used to develop a versatile adsorbent for simultaneous removal of ammonium and phosphate from contaminated waters. Batch studies indicated that a combination of mixed salts and thermal treatments imparted the modified NCAP (named NCAP-NM) with the maximum nitrogen and phosphorus sorption capacity.

Removal of phosphate using calcium and magnesium …

01-09-2017· Magnetic calcium (Ca) and magnesium (Mg)-modified iron oxide adsorbents were synthesized using CaCl 2, CaCO 3, MgCl 2, or MgCO 3 by a simple combustion method for the remediation of phosphate. Modification with Ca and Mg significantly improved the phosphate adsorption capacity of the magnetic iron oxide adsorbents.

Simultaneous removal of ammonium and phosphate from ...

In this study, natural calcium-rich attapulgite (NCAP) was used to develop a versatile adsorbent for simultaneous removal of ammonium and phosphate from contaminated waters. Batch studies indicated that a combination of mixed salts and thermal treatments imparted the modified NCAP (named NCAP-NM) with the maximum nitrogen and phosphorus sorption capacity.

Synthesis of mesoporous silica-calcium phosphate hybrid ...

01-09-2018· In this study, we designed to synthesize a kind of novel mesoporous silica-calcium phosphate (MS-CP) hybrid nanoparticles as efficient adsorbent for Cd 2+ removal by a facile one-pot method, using tetraethylorthosilicate (TEOS) as silica source, n-octadecyltrimethoxysilane (C18TMS) as surfactant template, calcium chloride anhydrous (CaCl 2) as Ca 2+ source and disodium hydrogen …

A lignin-based nano-adsorbent for superfast and highly ...

A lignin-based nano-adsorbent for superfast and highly selective removal of phosphate ... The design of an environmentally benign cost-effective adsorbent for superfast removal of phosphate from wastewater is vital but remains a huge challenge. Herein, we have developed a recyclable, low-cost nanostructured bio-adsorbent, ...

Understanding and improving the reusability of phosphate ...

15-11-2018· Calcium enhanced phosphate adsorption but also formed calcium carbonate based precipitates on the adsorbent which need to be removed to maintain reusability. Future studies should focus on understanding the mechanism of calcium binding and monitoring the reusability for more cycles.

JPS6270212A - Calcium phosphate based hydroxyapatite …

PURPOSE: To produce the titled hydroxyapatite useful as a column for chromatographic separation of biological high polymers, by firing a gelatinous or powdery calcium phosphate based hydroxyapatite at a specific temperature. CONSTITUTION: Gelatinous or powdery calcium phosphate based hydroxyapatite is fired within 400W700°C, preferably 500W600°C temeprature range for about …

calcium phosphate based adsorbent for fluoride removal

Experimentation on bone char-based treatment for , Experimentation on bone char-based treatment for fluoride removal from drinking water in Senegal S Sorlini & D Palazzini, Italy , experimentation carried out using animal bone char as adsorbent material for fluoride removal Possible , composed of calcium phosphate (57-80%), calcium carbonate (6-10%), and activated .

Effective Adsorption and Removal of Phosphate from …

12-06-2017· The effect of the adsorbent dosage on phosphate adsorption by the two Fe-based MOFs is illustrated in Fig. 7a. As adsorbent dosages increased from 10 to 60 mg·L −1 , the phosphate …

Lead Removal Using Calcium Phosphate Precipitated on …

Download Citation | Lead Removal Using Calcium Phosphate Precipitated on the Surface of Phosphorus Adsorbent. | The removal of lead using calcium phosphate precipitated on the surface of …

Removal of Phosphate from Eutrophic Lakes through ...

Simultaneous removal of ammonium and phosphate from eutrophic waters using natural calcium-rich attapulgite-based versatile adsorbent. Desalination 2014, 351, 128-137. DOI: 10.1016/j.desal.2014.07.029.

RU2009126614A - Phosphate adsorbent based on iron (iii ...

1. Iron (III) -based phosphate adsorbent, comprising a) the base material of the adsorbent, which is starch, b) polynuclear iron (III) oxyhydroxides, c) a glucose derivative, preferably sucrose, further comprising a carbonate, wherein said glucose derivative is partially introduced into polynuclear iron (III) oxyhydroxides and wherein the phosphate binding capacity is more than about 140 mg of ...

Adsorption of phosphate ions from water using a novel ...

(2011). Adsorption of phosphate ions from water using a novel cellulose-based adsorbent. Chemistry and Ecology: Vol. 27, No. 2, pp. 147-164.

"IRON (III)-CARBOHYDRATE BASED PHOSPHATE …

Calcium and aluminium salts orally taken as treatment for hyperphosphatemia are known But there are concerns regarding their long-term safety The traditional aluminium-based phosphate binders have the drawback of side effects due to aluminium absorption (osteomalacia, encephalopathy, microcytic anaemia) Calcium-containing phosphate binders (calcium carbonate or calcium acetate) may …

Adsorption Kinetics of Phosphate on Ceria-Based …

The result was validated by the phosphate adsorption onto Veria-Based adsorbent. The factor (m/V) b had the close relation with the adsorption speed and the adsorbent dosage, intensity exponent b ...

Calcium Phosphate in Pharmaceutical Product …

Calcium phosphates have also been used as anti-caking or flocculating agents in suspensions, and adsorbent or thickening agents in ointments and creams. However, ... disintegration time and dissolution rate of dibasic calcium phosphate-based tablets. J …

Extraction of Phosphate from Polluted Waters Using …

An adsorbent prepared by entrapping active carbon derived from the stems of Achyranthes aspera plant in the calcium alginate beads (CABAA) has been investigated for its adsorption nature towards the removal of phosphate by varying various physicochemical parameters. Surface morphological studies are made using FTIR, XRD, FESEM, and EDX.

calcium phosphate based adsorbent for fluoride removal

Experimentation on bone char-based treatment for , Experimentation on bone char-based treatment for fluoride removal from drinking water in Senegal S Sorlini & D Palazzini, Italy , experimentation carried out using animal bone char as adsorbent material for fluoride removal Possible , composed of calcium phosphate (57-80%), calcium carbonate (6-10%), and activated .

US20090169645A1 - Iron Sulfate-Based Phosphate …

Iron Sulfate-Based Phosphate Adsorbent Download PDF Info Publication number US20090169645A1. US20090169645A1 US11/571,305 US57130505A US2009169645A1 US 20090169645 A1 US20090169645 A1 US 20090169645A1 US 57130505 A US57130505 A US 57130505A US 2009169645 A1 US2009169645 A1 US 2009169645A1 Authority US United States Prior art keywords

CA2671828C - Iron(iii)-carbohydrate based phosphate ...

CA2671828C CA2671828A CA2671828A CA2671828C CA 2671828 C CA2671828 C CA 2671828C CA 2671828 A CA2671828 A CA 2671828A CA 2671828 A CA2671828 A CA 2671828A CA 2671828 C CA2671828 C CA 2671828C Authority CA Canada Prior art keywords iron phosphate iii phosphate adsorbent starch Prior art date 2006-12-14 Legal status (The legal status is an assumption and is not …

"IRON (III)-CARBOHYDRATE BASED PHOSPHATE …

Calcium and aluminium salts orally taken as treatment for hyperphosphatemia are known But there are concerns regarding their long-term safety The traditional aluminium-based phosphate binders have the drawback of side effects due to aluminium absorption (osteomalacia, encephalopathy, microcytic anaemia) Calcium-containing phosphate binders (calcium carbonate or calcium acetate) may …

Adsorption studies of phosphate ions on alginate-calcium ...

Alginate-calcium carbonate composite beads was prepared by the sol-gel method and characterized by Fourier transform infra-red spectroscopy (FT-IR) and scanning electron microscope (SEM) instruments. Adsorption potential of phosphate ions have been studied on laboratory scale. The effects of contact time, adsorbent dosage, initial analyte concentration, pH and agitation speed were optimized at ...

Extraction of Phosphate from Polluted Waters Using …

An adsorbent prepared by entrapping active carbon derived from the stems of Achyranthes aspera plant in the calcium alginate beads (CABAA) has been investigated for its adsorption nature towards the removal of phosphate by varying various physicochemical parameters. Surface morphological studies are made using FTIR, XRD, FESEM, and EDX.

Iron Sulfate-Based Phosphate Adsorbent - VIFOR ...

13-11-2014· Iron Sulfate-Based Phosphate Adsorbent . United States Patent Application 20140335202 . Kind Code: A1 . Abstract: The present invention relates to a process for the ...

Adsorption of phosphate ions from water using a novel ...

(2011). Adsorption of phosphate ions from water using a novel cellulose-based adsorbent. Chemistry and Ecology: Vol. 27, No. 2, pp. 147-164.

Removal of Phosphate from Eutrophic Lakes through ...

Simultaneous removal of ammonium and phosphate from eutrophic waters using natural calcium-rich attapulgite-based versatile adsorbent. Desalination 2014, 351, 128-137. DOI: 10.1016/j.desal.2014.07.029.

Calcium Phosphate in Pharmaceutical Product …

Calcium phosphates have also been used as anti-caking or flocculating agents in suspensions, and adsorbent or thickening agents in ointments and creams. However, ... disintegration time and dissolution rate of dibasic calcium phosphate-based tablets. J …