Removal of ammonium and phosphate in the simulated wastewater by using coal fly ash adsorbent

Affandi, Komala Affiyanti; Bagastyo, Arseto Yekti

doi:10.22515/sustinere.jes.v5i1.129

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…Among them, adsorbent is the most important and the basic factor of adsorption. erefore, the influence of relevant adsorbents on the adsorption effect is very important [4]. Due to the high concentration of waste adsorbent and high adsorbent concentration in wastewater treatment, adsorbents are widely used to remove trace impurities in wastewater for deep purification, or to remove very high impurities in the sewage system.…”

Section: Introductionmentioning

confidence: 99%

“…Research of Sandhwar and Prasad mainly focuses on the treatment of electrocoagulation, peroxy electrocoagulation, and peroxygen coagulation processes in the treatment of the main toxic components in wastewater containing purified terephthalic acid, benzoic acid (BA), terephthalic acid (TPA), and p-toluic acid (p-TA) and phthalic acid (PA). First, it is treated by acid treatment at different pH values (2)(3)(4) and temperatures (15-60 °C).…”

Section: Introductionmentioning

confidence: 99%

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Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Zhu

Chen

2022

Advances in Materials Science and Engineering

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With the rapid development of the economic system and the continuous development of industry, environmental pollution is becoming more and more important, so wastewater treatment urgently needs to be strengthened. This article uses fly ash-coated iron electrode electrocoagulation method to carry out experimental tests on the treatment of comprehensive wastewater from chemical and pharmaceutical parks. Fly ash is used as a raw material to prepare a shaped adsorbent; in order to analyze whether the adsorbent has many potential applications in actual wastewater treatment and use. The experiment research of iron electrode electrocoagulation was carried out on actual groundwater, aiming to provide data and theoretical support for the utilization of fly ash and the optimization of comprehensive wastewater treatment technology. The article mainly conducts related research on title distribution, firstly the physical and chemical properties of fly ash, and secondly, discusses the related structure of electrocoagulation method, and solves the problem of comprehensive wastewater based on the combination of the two solving issues. Aware of the importance of sewage treatment and the characteristics of related treatment methods such as adsorption, membrane separation technology, and ion exchange, the advantages of these methods are also used for reference in subsequent experiments to achieve the purpose of reliable experimental results. The experimental results show that the effect of sewage treatment with fly ash with different average diameter particles is obvious. Among them, the maximum value of vibration grinding ash before and after application increased from 5.62 to 8.31, and the maximum removal rate is also 8.31; the removal effect is significant. It can be seen that the fly ash-coated iron electrode electrocoagulation method can have a great effect on the treatment of comprehensive wastewater in the chemical and pharmaceutical park.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Zhu

Chen

2022

Advances in Materials Science and Engineering

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“…Then 4.5 and 7.0 g of fly ash were added as a sorbent and sorption was carried out for 150 minutes at a mixing device rotation speed of 180 rpm at pH 8. The maximum degree of ammonium ion extraction of 14% was achieved at a sorbent dose of 4.5 g, and 17% at a dose of 7.0 g. The adsorption value of ammonium ions in the saturated sorbent was 7.17 mg/g [16].…”

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confidence: 91%

Study of the efficiency of water treatment from ammonium ions by a calcined sorbent from ash-and-slag waste

Korotkova,

Zakolyukina,

Bushumov

2023

TaAE

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Experimental studies of sorption on water treatment from ammonium ions by a calcined sorbent based on ash-and-slag waste from thermal power engineering have been carried out. The calcined sorbent was obtained by calcining samples of ash-and-slag from coal combustion at the Novocherkassk State District Power Plant at a temperature of 600 оC for 30 min. The sorption capacity of a sorbent with a dose of 2.0 g per 50 mL of a model solution, a stirrer speed of 200 rpm, pH 7, and sorption time from 10 to 180 minutes was studied. The influence of the initial concentration of model solutions with the content of ammonium ions 5, 20, 50 and 100 mg/L on the amount of adsorption and treatment efficiency was studied. The highest treatment efficiency of 60% was obtained for an initial concentration of ammonium ions in a solution of 20 mg/L. Processing of experimental data was carried out according to the models of pseudo-first, pseudo-second-order and intra-particle diffusion kinetics. The best description of the experimental data was obtained using the pseudo-first order model, which has the highest value of the coefficient of determination. The adsorption equilibrium in the system ammonium ions – calcined sorbent was studied for the initial concentration of ammonium ions in solution: 5, 20, 30, 50, 100, 200, 300 mg/L. Processing of experimental data on equilibrium was carried out on the basis of two-parameter adsorption isotherms: Langmuir, Freindlich and Temkin. The value of the coefficient of determination according to the Langmuir isotherm is the largest R2 = 0.9904. Dependences between the cleaning efficiency at adsorption equilibrium and the initial concentration of ammonium ions in solution for the system ammonium ions – calcined sorbent are obtained. With an increase in the initial concentration of ammonium ions in the solution, the treatment efficiency at low initial concentrations increases, and decreases with increasing concentration.

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Investigation of adsorption equilibrium in the system of ammonium ions and a calcined sorbent from ash and slag waste of thermal power plants

Korotkova

Zakolyukina

Bushumov

2023

Izvestiâ vuzov. Prikladnaâ himiâ i biotehnologiâ

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A calcined sorbent from ash and slag waste of thermal power plants was used for water purification from ammonium ions. Experiments were carried out under static conditions at a temperature of 25±2 °С. The concentration of ammonium ions in the solution was measured by the spectrophotometric method according to the established graduation characteristic tested for convergence and correctness. The sorption process was studied at a sorbent dose of 1.0 g per 50 cm3 of the model solution taking the specific pore volume of the sorbent into account. For a solution with an ammonium ion content of 20 mg/dm3, the following modifications were carried out: the frequency of magnetic stirrer rotation was varied from 50 to 500 rpm; the pH of the solution – from 4 to 9; and the time to equilibrium – from 10 to 210 min. The time to equilibrium was 180 min. The effect of initial concentration of ammonium ions (2.0; 5.0; 20; 50 and 100 mg/dm3) in the solution on the adsorption process was studied under optimal sorption parameters. The adsorption equilibrium in the “ammonium ions–calcined sorbent” system was studied for the initial concentration of ammonium ions from 5 to 300 mg/dm3. Experimental data were processed using Langmuir and Freundlich adsorption isotherms. The maximum value of adsorption comprised 1.1251 mg/g. The experimental data were found to agree with the Langmuir theory. To describe the adsorption kinetics, the parameters of pseudo-first and pseudo-second order equations were determined. The highest convergence between the experimental and calculated data was achieved by the pseudo-first order model.

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Removal of ammonium and phosphate in the simulated wastewater by using coal fly ash adsorbent

Cited by 3 publications

References 8 publications

Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Treatment of Comprehensive Wastewater from Chemical and Pharmaceutical Parks by Fly Ash-Coated Iron Electrode Electrocoagulation

Study of the efficiency of water treatment from ammonium ions by a calcined sorbent from ash-and-slag waste

Investigation of adsorption equilibrium in the system of ammonium ions and a calcined sorbent from ash and slag waste of thermal power plants

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