Fast removal of Pb(II) and Cu(II) from contaminated water by groundwater treatment waste: impact of sorbent composition

Zubrytė, Edita; Gefenienė, Audronė; Kaušpėdienė, Danutė; Ragauskas, Romas; Binkienė, Rima; Selskienė, Aušra; Pakštas, Vidas

doi:10.1080/01496395.2019.1655455

Cited by 3 publications

(6 citation statements)

References 62 publications

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“…A homogeneous Fenton reaction can also be expected in the acidic medium. As has already been determined in our previous work (Zubrytė et al, 2020), the concentration of Fe(III) in the solution with pH 2 was about 120 mg/L. Similar results were obtained for burgerlike Fe 2 O 3 (Xiao et al, 2018), where the optimal pH range for the degradation of Acid Red G dye was determined about 2-3.…”

Section: Ph Effect On Sg Dye Degradation Efficiencysupporting

confidence: 88%

“…The better performance of the process around pH 2-3 could be explained by the chemical properties and composition of the used solid material. The point of zero charge (pH pzc ) of GWTW is equal to pH = 8.0 (Zubrytė et al, 2020), thus under experimental conditions used, the GWTW surface was positively charged (Dzombak & Morel, 1990). In the acidic medium, the protonation of GWTW increased, which means that the adsorption occurred according to the mechanism of the electrostatic interaction between the positively charged GWTW surface and the dye anion.…”

Section: Ph Effect On Sg Dye Degradation Efficiencymentioning

confidence: 99%

“…The groundwater treatment waste (GWTW) is formed by removing iron and manganese from groundwater by aeration (Zubrytė et al, 2020). Nowadays, the reuse of drinking water treatment sludge has become an increasingly important issue (Babatunde & Zhao, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

Sodaitienė

Kaušpėdienė

Gefenienė

et al. 2022

Journal of Environmental Engineering and Landscape Management

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The performance of groundwater treatment waste (GWTW) as an adsorbent and catalyst in the decoloration of aluminum dye Sanodure green LWN (SG) solution was investigated. The raw GWTW was more suitable for dye removal than calcined at 800 °C temperature. The catalytic activity of GWTW in Fenton-like reactions in sunlight increases with decreasing pH from 5.5 to 2.5 and increasing temperature from 20 to 60 °C. The rate of 70% decoloration in the first 5 min and 92% after 50 min of 100 mg/L SG dye solution was reached at 50 °C and pH 3. Kinetics of the SG dye color removal fitted well with the double exponential and two-stage pseudo-first-order kinetic models. The activation energy of the first stage of the SG dye degradation reaction is 30.45 kJ/mol. GWTW could be re-used for the pre-treatment of dye-contaminated wastewater before entering the wastewater treatment plant.

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Section: Ph Effect On Sg Dye Degradation Efficiencysupporting

confidence: 88%

Section: Ph Effect On Sg Dye Degradation Efficiencymentioning

confidence: 99%

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Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

Sodaitienė

Kaušpėdienė

Gefenienė

et al. 2022

Journal of Environmental Engineering and Landscape Management

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“…The effect of GWTW dosage on SG dye removal was investigated without the correction of solution pH during the adsorption process to ascertain the optimal ratio of H + ions concentration to adsorbent mass in adsorption systems. Earlier we have already determined ( Zubrytė et al., 2019 ) that the suspension of GWTW in deionized water was basic (pH = 8 at the W/V ratio 1:100) due to reactions ( Hedricks, 2006 ): Fe(OH) 3 ↔ Fe 3+ + 3 OH − FeOOH + H 2 O ↔ Fe 3+ + 3 OH − CaCO 3 ↔ Ca 2+ + CO 3 2- CO 3 2- + H 2 O ↔ HCO 3 - + OH − …”

Section: Resultsmentioning

confidence: 96%

“…The collected waste was stored at room temperature (20–25 °C) in its original form and was used in its raw state after grinding in a mortar. The brown powder is mostly composed of iron oxide/hydroxide ( Zubrytė et al., 2019 ). The morphology of GWTW surface and chemical composition of the GWTW was studied by SEM-EDX and TEM.…”

Section: Methodsmentioning

confidence: 99%

Sustainable removal of anodized aluminum dye by groundwater treatment waste: experimental and modeling

Sodaitienė

Gefenienė

Kaušpėdienė

et al. 2021

Heliyon

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Groundwater treatment waste (GWTW), as an environmentally friendly renewable nanomaterial, was implemented for the removal of anodized aluminum dye Sanodure Green (SG) from aqueous solutions. The capability of the SG metal complex dye removal was assessed by measuring solution decoloration and chromium elimination degree. GWTW was characterized using FTIR, SEM, EDX, TEM, XPS and surface area measurements. Kinetic curves were obtained by changing initial dye concentration, pH, temperature and adsorbent dose. Kinetic studies showed that up to 90 % of SG dye was removed within a contact time of 20 min. The adsorption of the dye was favourable at 293 K temperature in the acidic pH region (pH 1.5–2.0) with maximum adsorption capacity 185 mg g −1 . Langmuir-Freundlich isotherm model as well as hyperbolic tangent, diffusion-chemisorption and Elovich kinetic models accurately describe the dye removal process. The calculated thermodynamic parameters confirmed that SG dye removal occurred spontaneously and exothermically. The magnitude of enthalpy change (ΔH ° = −35.80 kJ mol −1 ) was in agreement with the electrostatic interaction. The adsorption potential of GWTW for SG dye removal was also evaluated using a real wastewater produced after dyeing of anodized aluminum.

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Sustainable Approaches for Wastewater Treatment: An Analysis of Sludge-Based Materials for Heavy Metal Removal from Wastewater by Adsorption

Rajakaruna,

Sewwandi,

Najim

et al. 2023

Sustainability

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A comprehensive study incorporating results from different findings related to heavy metal removals from wastewater using sludge as an absorbent will assist researchers and practitioners in planning wastewater treatment processes. This study aims to provide a comprehensive foundation on the potential of using sludge-based materials to remove heavy metals from wastewater based on recent studies. The physicochemical properties of sludge and the nature of metal ions have significantly contributed to the adsorption of heavy metals into sludge-based materials. Many researchers found the effects of pH, temperature, initial heavy metal concentrations, contact time, and adsorbent dose on the adsorption characteristics of heavy metals into sludge-based materials. Isotherm, kinetic, and thermodynamic studies have explained the mechanism of heavy metal adsorption by sludge-based materials. The effectiveness of regeneration of sludge-based adsorbents has been investigated by some researchers, providing an environmentally friendly solution to remove heavy metals from wastewater. It was found that less attention has been paid to metal recovery and recycling of sludge-based adsorbents, which indicates the need for future studies to enhance the reusability of sludge in wastewater treatment. Moreover, many studies have been conducted as lab-scale experiments on heavy metal adsorption from aqueous solutions using sludge-based adsorbents, leaving a research gap for future studies to focus on the removal of heavy metals from actual wastewater at field scale.

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Fast removal of Pb(II) and Cu(II) from contaminated water by groundwater treatment waste: impact of sorbent composition

Cited by 3 publications

References 62 publications

Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

Sustainable removal of anodized aluminum dye by groundwater treatment waste: experimental and modeling

Sustainable Approaches for Wastewater Treatment: An Analysis of Sludge-Based Materials for Heavy Metal Removal from Wastewater by Adsorption

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