Electrodialysis Separation and Selective Concentration of Sulfuric Acid and Nickel Sulfate Using Membranes Modified with Polyaniline

Membranes and Membrane Technologies, Journal Year: 2023, Volume and Issue: 5(4), P. 236 - 256

Published: Aug. 1, 2023

Language: Английский

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Kinetics of manganese extraction from pyrolusite using reduction leaching of acidic wastewater from steel plants

Canadian Metallurgical Quarterly, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 10

Published: Dec. 10, 2024

Acidic wastewater from steel works was selected to reduce pyrolusite. The effects of leaching parameters such as the ratio FeCl2 MnO2, temperature, liquid–solid and initial HCl concentration in acidic on rate manganese were investigated. results show that under conditions including molar MnO2 (mFeCl2/mMnO2) at 2.2, temperature 363 K, a time 180 min, an L/S 11:1, 2.5 mol/L, pyrolusite 97.14%. An unreacted shrinking core model employed explore kinetics arising reduction plants. imply rate-determining step changed process; among which, first stage (0–100 min) subject control interfacial chemical reactions; second (100–180 controlled by internal diffusion. apparent activation energy two stages 15.57 125.48 kJ/mol respectively, equations respectively: 1–(1–r)1/3=0.39(mFeCl2/mMnO2)1.18[HCl]0.21(VL/MS)0.62exp(−15.57/RT)t 1–3[(1–r)/(1–r1)]2/3+2[1–(1–r1)(r–r1)1/3]=2.22×1016(mFeCl2/mMnO2)5.81[HCl]exp(−125.48RT)t

Language: Английский

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Exploring the Possibilities of Using Recovered Collagen for Contaminants Removal—A Sustainable Approach for Wastewater Treatment

Polymers, Journal Year: 2024, Volume and Issue: 16(20), P. 2923 - 2923

Published: Oct. 18, 2024

Collagen is a non-toxic polymer that generated as residual product by several industries (e.g., leather manufacturing, meat and fish processing). It has been reported to be resistant bacteria have excellent retention capacity. However, the recovered collagen does not meet requirements used for pharmaceutical medical purposes. Due scarcity of water resources now affecting all continents, pollution major concern. Another field could integrate by-product wastewater treatment. Applications collagen-based materials in treatment discussed detail, comparisons with already frequently made. Over last years, tested removal both organic substances, dyes) inorganic compounds heavy metals, noble uranium). They also manufacture oil-water separation materials; therefore, they emulsified oily wastewater. Because analysed wide range good candidates removing contaminants from streams seasonal variations composition concentration. The use makes method eco-friendly cost efficient. This paper discusses some challenges related treatment: material stability, reuse disposal. results showed are renewable reusable without significant loss initial properties. In sorption processes, incorporation experiments real demonstrated there competition among substances present sample.

Language: Английский

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Algal synthetic communities in industrial wastewater treatment: hurdles and opportunities

Rendiconti lincei. Scienze fisiche e naturali, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Language: Английский

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Electrodialysis Separation and Selective Concentration of Sulfuric Acid and Nickel Sulfate Mixed Solution Using Membranes Modified by Polyaniline

Мембраны и Мембранные технологии, Journal Year: 2023, Volume and Issue: 13(4), P. 269 - 290

Published: July 1, 2023

Language: Английский

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