Removal of Phosphate from Aqueous Solution Using Iron-Oxide-Coated Sand Filter Media: Batch Studies

Lǚ, Jianbo; Sun, Liping; Zhao, Xinhua; Liu, Bin; Li, Yinlei; Zhang, Lei

doi:10.1109/esiat.2009.104

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…According to some studies [30,31], the phosphate sorption capacity decreases with an increase in pH; the results of our study are also consistent with this finding. However, the studies did not find a mathematical model to link their findings of the pH to the phosphate sorption or other factors, as we did in this study.…”

Section: Figure 6 the Effect Of Ph On The P Removalsupporting

confidence: 92%

Study of Biomass Bottom Ash Efficiency as Phosphate Sorbent Material

et al. 2019

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Excessive richness of nutrients in water bodies such as rivers, lakes and ponds lead into deterioration of aquatic life as a results of dense growth of algae. Phosphate is one of the main nutrients that should be controlled to prevent this serious issue. Utilizing low cost material as a phosphate sorbent is offering a treatment method characterized as a sustainable solution. In this study the efficiency of biomass bottom ash BBA as phosphate sorbent material from aqueous solution is investigated. Batch experiments were undertaken, in which a particular mass of BBA was brought into contact with the phosphate solution. The experiments studied the influence of pH (different phosphate solutions were prepared with pH range 4 to 8), temperature (adsorption capacity measured at the temperature range of 10 to 30 °C), and contact time. In addition, the adsorption isotherm models were also applied to better understand the mechanism of phosphate sorption by BBA. The results revealed that the bonding between the cations (BBA surface) and anions (phosphate solution) is significantly affected by the pH of the solution. BBA presents an excellent phosphate sorption, especially, at low pH value and temperature around 20 o C. The method of this research can be adopted as a followed strategy for examination the capability of selected material for phosphorus removal from wastewater.

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Section: Figure 6 the Effect Of Ph On The P Removalsupporting

confidence: 92%

Study of Biomass Bottom Ash Efficiency as Phosphate Sorbent Material

et al. 2019

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“…It can be concluded that the coating step changed the morphology of natural sand. The amount of iron ox hydroxide deposits onto sand was determined to be about 30 mg-Fe/g-sand Jianbo et al [30] had used the same coating procedure and analyzed this amount to be 31.13mg-Fe/g-sand. It can be seen that the amount of all the adsorbents adsorbed onto CS increases with time and about 65%, 70% of phenol and 4-nitrophenol had been removed within the first 15 min of agitation, respectively, after which the process approaches equilibrium.…”

Section: Results and Discussion Characterization Of Cs Filter Mediamentioning

confidence: 99%

“…After cooling , the coated sand was washed with tap water until run-off was clear , then the coated sand was dried at 110ºC . After above coating step was finished , the sand was coated again according to the same step , and stored in polystyrene bottles for further use [30] .…”

Section: Experimental Procedures Adsorbent Materialsmentioning

confidence: 99%

Removal of Phenol Compounds from Aqueous Solution Using Coated Sand Filter Media

Al-Obaidy¹

2013

IJCPE

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Coated sand (CS) filter media was investigated to remove phenol and 4-nitrophenol from aqueous solutions in batch experiments. Local sand was subjected to surface modification as impregnated with iron. The influence of process variables represented by solution pH value, contact time, initial concentration and adsorbent dosage on removal efficiency of phenol and 4-nitrophenol onto CS was studied. Batch studies were performed to evaluate the adsorption process, and it was found that the Langmuir isotherm effectively fits the experimental data for the adsorbates better than the Freundlich model with the CS highest adsorption capacity of 0.45 mg/g for 4-nitrophenol and 0.25 mg/g for phenol. The CS was found to adsorb 85% of 4-nitrophenol and 65% for phenol at an initial concentration of 25 mg/ℓ.

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Adsorption filtration technology using iron-coated sand for the removal of lead and cadmium ions from aquatic solutions

Ahmedzeki

2013

Desalination and Water Treatment

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Removal of Phosphate from Aqueous Solution Using Iron-Oxide-Coated Sand Filter Media: Batch Studies

Cited by 6 publications

References 23 publications

Study of Biomass Bottom Ash Efficiency as Phosphate Sorbent Material

Study of Biomass Bottom Ash Efficiency as Phosphate Sorbent Material

Removal of Phenol Compounds from Aqueous Solution Using Coated Sand Filter Media

Adsorption filtration technology using iron-coated sand for the removal of lead and cadmium ions from aquatic solutions

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