BENEFICIAL USE OF SLUDGE FROM WATER TREATMENT PLANTS AS A MULTIPLE RESOURCE: POTENTIAL AND LIMITATIONS

Resources Conservation & Recycling Advances, Journal Year: 2025, Volume and Issue: unknown, P. 200247 - 200247

Published: Jan. 1, 2025

Language: Английский

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Evaluating centrifuged water treatment plant sludge as an adsorbent for nutrients, microorganisms, and heavy metals removal from wastewater

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 468, P. 142975 - 142975

Published: June 24, 2024

Language: Английский

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Azithromycin removal from water via adsorption on drinking water sludge-derived materials: Kinetics and isotherms studies

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(1), P. e0316487 - e0316487

Published: Jan. 9, 2025

In this study, we utilized drinking water treatment sludge (WTS) to produce adsorbents through the drying and calcination process. These were then evaluated for their ability remove azithromycin (AZT) from aqueous solutions. The L-500 adsorbent, derived (at 500°C) of WTS generated under conditions low turbidity in plant, presented an increase specific surface area 70.745 95.471 m 2 g -1 total pore volume 0.154 0.211 cm 3 , which resulted a significant AZT removal efficiency 65% distilled after 60 min treatment. synthetic wastewater, rate increased 80%, comparison, real effluent municipal wastewater 56% was obtained. Kinetic studies revealed that experimental data followed pseudo-second-order model (R : 0.993–0.999, APE: 0.07–1.30%, Δq: 0.10–2.14%) suggesting chemisorption is limiting step adsorption using L-500. This finding aligns with FTIR analysis, indicates mechanisms involve π-π stacking, hydrogen bonding, electrostatic interactions. equilibrium analyzed nonlinear Langmuir, Freundlich, Langmuir-Freundlich isotherms. best fitting 0.93, 2.22%, 0.06%) revealing numerous interactions energies between adsorbent showed reduction 19% its four consecutive reuse cycles. line circular economy principles, our study presents interesting prospect valorization WTS. approach not only offers effective but also represents forward advancing sustainable solutions within framework economy.

Language: Английский

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Effect of Extraction Temperature on Value-Added Biopolymer Recovery In Waste Activated Sludge

Published: Jan. 1, 2025

Language: Английский

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Effect of extraction temperature on value-added biopolymer recovery in waste activated sludge

Water Cycle, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Atomic Adsorption for Removing Heavy Metals from Wastewater: A Review of Adsorbents and Process Efficiency

Published: Jan. 1, 2025

Language: Английский

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Preparation of an activated adsorbent from water treatment plant sludge for phosphate removal from wastewater: optimization, characterization, isotherm, and kinetics studies

Journal of Water Sanitation and Hygiene for Development, Journal Year: 2024, Volume and Issue: 14(2), P. 122 - 143

Published: Feb. 1, 2024

Abstract Purifying water for diverse uses is vital, but concerns lie with the sustainability and accessibility of purification materials. As such, this study converted readily available treatment plant sludge (WTPS) into activated adsorbent phosphate removal in wastewater. WTPS was via thermal activation at 300 °C temperature chemical processes 3 M acid concentration, 4 h time, 75 temperature, then characterized using Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), Fourier transform infrared, elemental analyzer, differential calorimetry. SEM BET analyses revealed a highly porous (279.2 m2/g) efficient adsorption. On top process, preliminary experiments numerical optimization response surface methodology (RSM) were designed conducted. Through optimizing conditions, it found that 70 min contact pH 3, g/L dose, 30 mg/L initial concentration as optimal, yielding 83% efficiency. Furthermore, adsorption kinetics isotherm models examined second-order Langmuir indicated best fit. Notably, could be regenerated three cycles before efficiency dropped below 70%. Thus, presents promising, sustainable, wastewater treatment.

Language: Английский

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Enhanced the plant germination in sandy soil by novel sludge-based biochar prepared with residual sludge after EPS extraction as soil amendment

Water Cycle, Journal Year: 2024, Volume and Issue: 5, P. 215 - 222

Published: Jan. 1, 2024

The preparation of novel sludge-based biochar and its application as soil amendments are considered an environmentally friendly way to realize sludge recycling. In this study, a (RBC) was prepared by residual after extracellular polymers (EPS) extraction, the effect RBC amendment on ryegrass germination in sandy explored. results indicated that yield EPS extraction higher than raw sludge. Compared with (SBC), variety new functional groups crystalline structures were formed RBC, specific surface area pore volume significantly increased. Furthermore, largest NH4+-N adsorption capacity 7.6 mg/g achieved HNO3 modified (MRBC) under optimum pH 7. Moreover, rate height increased 52.0 % 213.4 MRBC adsorbed compared SBC addition. Accordingly, has great potential for plays prominent role enhancing plant growth soil. above research will provide direction advanced resource utilization sewage

Language: Английский

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Physical-Chemical Characterisation of an Alum-Based Water Treatment Sludge in Different Raw Water Turbidity Scenarios

Heliyon, Journal Year: 2024, Volume and Issue: unknown, P. e37579 - e37579

Published: Sept. 1, 2024

Language: Английский

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Analysis of the effectiveness of combining inorganic coagulants with chitosan and bentonite in the treatment of raw water

Sustainable Chemistry for the Environment, Journal Year: 2024, Volume and Issue: 6, P. 100109 - 100109

Published: May 20, 2024

The production of drinking water often leads to the creation a high residual concentration aluminum when mineral salts are used. This must be carefully monitored and controlled. A study was carried out at facility situated in Al Hoceima, Northern Morocco. Throughout this investigation, treated from plant underwent comparative testing, evaluating effectiveness chitosan as flocculant bentonite an adjuvant with inorganic coagulants (aluminum sulfate ferric chloride). objective reduce after treatment while minimizing use coagulant. Coagulation-flocculation tests, employing jar test, optimized coagulant dosage enhancing turbidity oxidability removal rates. coagulation-flocculation tests showed that combination 10 mg/L 140 bentonite, proved significantly more effective. Compared traditional methods using alone, reduced by 38.88%. optimal parameters were follows: dose mg/L, pH 7.83, <0.07 efficiency reaching 95.94% 42.70%.

Language: Английский

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