Optimization, Kinetics and Thermodynamic Modeling of Pulp Production from Plantain stem using the Kraft Process DOI Creative Commons
E. Evelyn, Akindele Okewale,

Chiedu N. Owabor

et al.

Cleaner Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 100129 - 100129

Published: Nov. 1, 2024

Language: Английский

Techniques for pollutant removal, nutrient recovery, and energy production from landfill leachates: a review DOI
Tonni Agustiono Kurniawan,

Pow‐Seng Yap,

Zhonghao Chen

et al.

Environmental Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

Citations

3
Treatment of landfill leachate wastewater by chemical coagulation‐flocculation, electro‐membrane bioreactor, and anaerobic hybrid system DOI Open Access
Zeynep Bilici,

Abir Hasnaoui,

Mustapha Chikhi

et al.

Water Environment Research, Journal Year: 2025, Volume and Issue: 97(2)

Published: Feb. 1, 2025

In this study, the treatment of landfill leachate wastewater by chemical coagulation, an electro-membrane bioreactor (e-MBR), and anaerobic hybrid system was studied. First, coagulation process applied to wastewater, which is referred their high organic pollutants. Aluminum sulfate (alum), poly aluminum chloride (PAC), ferric (FeCl3), ferrous (FeSO4) were used as coagulants. After determining coagulant type, pH optimization (6-10) amount (0.5-2.5 g/l) optimized. coagulation-flocculation experiments, optimum conditions determined 1.0 g/l alum at 9. At these conditions, oxygen demand (COD), total phenolic contents (TPC), color analyses examined 31.16%, 35.32%, 24.42% removal efficiencies obtained, respectively. pretreatment, e-MBR obtain further treatment. Iron (Fe) electrode ultrafiltration membrane (UP150) in system. 5, 10, 20 V electric current time-dependent flux measurements carried out. COD, TPC, performed both mixed liquor permeate. The results indicated that over ˃90% efficiency for achieved when increased from 5 V. addition, it also observed fouling decreased increased. Since still did not meet discharge criteria, obtained subjected 10 days incubation, found be 99.25%, 100%, 99.57%, PRACTIONER POINTS: bioreactor, Optimum 1 9 coagulation. It color, TPC 99.5%, 99.6%,

Language: Английский

Citations

1
Exploring Mechanistic Insights Into Coagulation-flocculation-aided Adsorption Design: a Comprehensive Study On the Removal of Toxic Metals and Organic Pollutants From Vegetable Oil Processing Wastewater DOI
Prosper Eguono Ovuoraye, Victor Ifeanyi Ugonabo, Christian Ebere Enyoh

et al.

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 17, 2025

Language: Английский

Citations

0
Optimization of calcined eggshell as an effective coagulant for treating colloidal particles in complex effluents in the CPCP industry: mechanistic insights, scale-up design, and comparative analysis with alum DOI
Victor Ifeanyi Ugonabo, Prosper Eguono Ovuoraye, Chinenye Adaobi Igwegbe

et al.

Chemical Engineering Communications, Journal Year: 2024, Volume and Issue: 211(12), P. 1842 - 1863

Published: Aug. 12, 2024

Highly turbid industrial effluent poses significant challenges to environmental sustainability. In this study, we investigated the optimal aggregation kinetics for removal of colloidal and particles in Cosmetics Personal Care Products (CPCP) using calcined eggshell (CES) industrial-grade aluminum sulfate as flocculants. The characteristics were determined following ASTM specifications, process optimization was carried out a response surface design approach. operating conditions at settling time 3 min found be pH 8, 0.2 g/L dosage CES, 10, 0.3 alum dosage. flocculation efficiencies CES 80% 78%, respectively, demonstrating effectiveness both flocculants removing reducing turbidity CPCP effluent. Mechanistic studies revealed that achieved particle through enmeshment inter-particle bridging with rate (1.3 × 10−7) lower floc breakup tendency (2.8 10−14) compared alum-sweep flocculation. hydrodynamics velocity gradient 269s−1 ≤ G 29s−1 indicated spontaneous agglomeration within period ≤10 min, indicating rapid efficient removal. findings study justify use sustainable effective option colloid/turbid from optimized mechanistic insights into contribute establishing an sedimentation geometry, specified aspect ratio, detention time, hypothetical settling, sludge depth ensuring favorable stability finished before discharge.

Language: Английский

Citations

1
Optimization, Kinetics and Thermodynamic Modeling of Pulp Production from Plantain stem using the Kraft Process DOI Creative Commons
E. Evelyn, Akindele Okewale,

Chiedu N. Owabor

et al.

Cleaner Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 100129 - 100129

Published: Nov. 1, 2024

Language: Английский

Citations

0