Adsorption studies of ammonia and phosphate ions onto calcium alginate beads

Işık, Zelal; Saleh, Mohammed; Dizge, Nadir

doi:10.1016/j.surfin.2021.101330

Cited by 32 publications

(9 citation statements)

References 68 publications

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“…The dyes uptakes continued increasing however with a flatter shape. As discussed previously by Saleh et al (2021) (Saleh et al 2019) and Isik et al (2021b), at the start of the adsorption process, the active sites present at the BR and AA surfaces were empty and ready to capture the dyes. At that time the mass Water Practice & Technology Vol 00 No 0, 7 transfer from the adsorbate to the adsorbent was high.…”

Section: Effects Of Initial Concentration and The Contact Timementioning

confidence: 63%

Basic Red 18 and Remazol Brilliant Blue R biosorption using Russula brevipes, Agaricus augustus, Fomes fomentarius

Arslantaş

M’barek

Saleh

et al. 2022

Water Practice and Technology

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In this study, the adsorption abilities of Russula Brevipes (RB), Agaricus Augustus (AA), and Fomes Fomentarius (FF) were evaluated in Basic Red 18 (BR18) and Remazol Brilliant Blue R (RBBR) biosorption from textile effluent. The adsorbents were characterized via Scanning Electron Microscopy (SEM), Energy Dispersive Spectrometer (SEM-EDS), and Fourier transform infrared spectroscopy (FT/IR). Fomes fomentarius present a low sorption capacity contrary to the two other fungi (RB and AA). RB and AA were selected as potential adsorbents for BR18 and RBBR, respectively. The maximum BR18 removal efficiencies for 10, 25, and 50 mg/L were obtained after 60 min to be 90, 88, and 86%, respectively. The RBBR adsorption efficiencies were 96.4, 96, and 90% for dye concentrations of 10, 25, and 50 mg/L. The adsorption of BR18 onto the RB biomass followed the Freundlich isotherm, while Langmuir is the best isotherm for RBBR sorption's elucidation onto AA fungus biomass. The removal of BR18 by BR biomass was found to follow the pseudo-second-order. In contrast, the adsorption of RBBR onto the AA biomass followed Lagergren's pseudo-first-order. For both adsorbents, the adsorption was exothermic, feasible, and spontaneous in nature. Finally, the dyes biosorption process was perfectly achieved onto fungi biomass via physisorption.

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Section: Effects Of Initial Concentration and The Contact Timementioning

confidence: 63%

Basic Red 18 and Remazol Brilliant Blue R biosorption using Russula brevipes, Agaricus augustus, Fomes fomentarius

Arslantaş

M’barek

Saleh

et al. 2022

Water Practice and Technology

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“…The value of thermodynamic functions such as Gibbs free energy enthalpy (∆ H ) and entropy (∆ S ) is very important for the design of the adsorption system. [ 41 ] The free energy change (Δ G ) indicates whether the process occurs spontaneously. The smaller the negative Δ G value, the more likely the process will occur spontaneously.…”

Section: Resultsmentioning

confidence: 99%

Use of welding powder as a low‐cost adsorbent for waste motor oil removal

Eskikaya,

Belibagli,

Bouchareb

et al. 2024

CLEAN Soil Air Water

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Waste motor oil (WMO), which has no stable form or structure, causes major environmental problems and damage to the ecosystem once it is disposed to the environment. Because of the high toxicity of contents in such effluent, it must be treated before being discharged into the receiving environment. In recent years, the valorization and the use of waste materials to remove toxic pollutants is of great importance to researchers and diverse industries. In this study, the usability of waste welding powder (WWP) as an adsorbent for waste oil removal was investigated. For this purpose, investigating the usability of material, which is generated as industrial waste, in wastewater treatment will lead to the evaluation of waste. The effects of temperature, pH, WWP amount, and initial WMO amount were investigated. According to the adsorption studies, 1 g WWP/L of the processed adsorbent was able to effectively remove 95.05% of WMO (100 mg) at a pH of 2 at 30°C. Stereo microscopy images showed a large amount of oil adsorbed on the WWP surface. The different WWP properties were determined by adsorption isotherm (Harkins–Jura), kinetic (pseudo‐second order), and thermodynamic (ΔG: −5.1 kJ mol–1) experiments. It is thought that WWP, which is a low‐cost and waste material, can be used as a promising adsorbent in WMO removal.

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“…In contrast to ALG, ALP-AGS also contained N (7.47 ± 0.23) and trace amounts of Fe (0.16%) and Cu (0.30%). For comparison, Isik et al 49 showed that calcium ALG beads were composed of C (9 mass %), O (19 mass %), Na (6 mass %), Cl (34 mass %), and Ca (32 mass %). The presence of C and O may correspond to functional groups distributed on the surface of the adsorbents 50 .…”

Section: Resultsmentioning

confidence: 99%

Alginate-like polymers from full-scale aerobic granular sludge: content, recovery, characterization, and application for cadmium adsorption

Cydzik‐Kwiatkowska

Gusiatin

Zielińska

et al. 2022

Sci Rep

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Aerobic granular sludge (AGS) is a proven resource for the recovery of biopolymers like alginate-like polymers (ALP). This is the first report on the dynamics of ALP produced by AGS (ALP-AGS) in a full-scale wastewater treatment plant (WWTP), optimization of ALP recovery from AGS, and adsorption of cadmium (Cd2+) by ALP. Recovery of ALP was highest when using 120 mL of 0.2 M Na2CO3 at 70 °C for 45 min. Seasonal (1.5 years, over 3100 cycles) and intra-cycle changes in ALP-AGS in the WWTP were monitored. The ALP content in AGS increased in the transition period between winter and spring, reaching over 150 mg/g MLSS. In the batch reactor cycle, the ALP-AGS level peaked 2 h after the start of aeration (mean peak level: 120 mg/g MLSS), then decreased about two-fold by the end of the cycle. The ALP-AGS had a small surface area and a lamellar structure with crystalline outgrowths. The optimal conditions of Cd2+ adsorption with ALP were a dosage of 7.9 g d.m./L, a pH of 4–8, and an equilibrium time of 60 min. Carboxyl and hydroxyl groups were the key functional groups involved in Cd2+ adsorption. According to the Sips model, the maximum Cd2+ adsorption capacity of ALP-AGS was 29.5 mg/g d.m., which is similar to that of commercial alginate. AGS is a richer source of ALP than activated sludge, which ensures the cost-effectiveness of ALP recovery and increases the sustainability of wastewater treatment. Information on the chemical properties and yields of ALP from full-scale WWTPs is important for downstream applications with the recovered ALP.

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Adsorption studies of ammonia and phosphate ions onto calcium alginate beads

Cited by 32 publications

References 68 publications

Basic Red 18 and Remazol Brilliant Blue R biosorption using Russula brevipes, Agaricus augustus, Fomes fomentarius

Basic Red 18 and Remazol Brilliant Blue R biosorption using Russula brevipes, Agaricus augustus, Fomes fomentarius

Use of welding powder as a low‐cost adsorbent for waste motor oil removal

Alginate-like polymers from full-scale aerobic granular sludge: content, recovery, characterization, and application for cadmium adsorption

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