Membrane technologies for heavy metals removal from water and wastewater: A mini review

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 9, P. 100538 - 100538

Published: Nov. 22, 2023

Clean water scarcity is an escalating global concern, necessitating the development of innovative membrane technologies. This mini review explores multifaceted realm technology, a field increasingly engaging researchers and academics. Polymeric membranes find application in diverse domains, spanning gas separation, packaging films, protective coatings, crucially, purification techniques like reverse osmosis various filtration methods. predominantly focuses on pressure-driven processes, classification evolving selectivity from nanofiltration to microfiltration. It further dissects these processes based natural synthetic polymeric membranes. Notably, this work delves into pivotal role heavy metal purification, emphasizing landscape Three notable types under scrutiny are Mixed Matrix Membranes, Thin Film Layer incorporating polymer inclusions. Their versatility applications sectors showcase burgeoning potential Furthermore, outlines future membranes, delineating their indispensable nanofiltration, microfiltration, ultrafiltration, complexation-enhanced ultrafiltration. The compelling attributes osmosis, forward pervaporation advancing also expounded upon. culminates by providing insight structural intricacies shedding light addressing crisis. dynamic technology underscores crucial need for continued research innovation domain tackle pollution effectively. As we venture 21st century, set play instrumental safeguarding our most precious resource—clean sustainable water.

Language: Английский

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Trend and current practices of coagulation-based hybrid systems for pulp and paper mill effluent treatment: mechanisms, optimization techniques and performance evaluation

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 429, P. 139543 - 139543

Published: Nov. 4, 2023

Language: Английский

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Cobalt oxide doped polyaniline composites for methyl orange adsorption: Optimization through response surface methodology

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 9, P. 100553 - 100553

Published: Nov. 20, 2023

In this study, Cobalt Oxide (Co₃O₄) cube-doped polyaniline (PANI) composites were successfully synthesized through an in-situ oxidative polymerization process, with the primary objective of effectively eliminating Methyl Orange (MO) from aqueous solutions. The model dye MO was employed to assess adsorption efficiencies both PANI homopolymer and Co3O4 composites. results unequivocally reveal that containing cubes exhibit significantly higher efficiency compared undoped PANI. kinetics adhere a pseudo-second-order reaction, highlighting exceptional effectiveness these in adsorption. Furthermore, Response Surface Methodology (RSM) optimize critical process parameters for removal. Utilizing quadratic generated by RSM, study systematically explored interplay between several key factors, namely initial pH, contact time, concentration, temperature, their impact on removal rate MO. Through comprehensive analysis RSM experimental results, optimal conditions identified, achieving maximum capacity 109.97 mg g−1 loading 4 wt%. This underscores superior Additionally, incorporation has yielded valuable insights into optimization, elucidating intricate relationship factors These compelling findings carry profound practical implications, offering promising avenue development efficient water treatment processes environmental remediation techniques possibilities addressing pollution challenges.

Language: Английский

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Palm oil mill effluent degradation by a novel strain of Bacillus sp. isolated from contaminated environment

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 9, P. 100637 - 100637

Published: Jan. 29, 2024

Palm oil mill effluent (POME) has a high concentration of organic matter and total suspended solids. However, improper disposal refining wastes containing oils, fats, sludge can cause environmental damage harm human health due to their toxic, carcinogenic, polluting effects. This research was carried out solve the harmful effects caused by release POME environment. The goal this study isolate naturally occurring bacterium that could degrade use it as single carbon source. Bacteria were isolated from POME-contaminated medium using an enrichment technique. Judging 16S rRNA partial gene sequencing, morphological, biochemical, molecular identification methods, bacteria identified novel Bacillus sp. substrate concentration, inoculum size, pH, temperature, incubation time on bacterial growth investigated "one factor at time" (OFAT) approach. optimal conditions for bacterium's found be pH 7.5, 35 °C, 20 % v/v 6 96 hours incubation. is capable reducing 84 COD 91 BOD sample. degradation potential suggests used good option bioremediation POME-polluted areas.

Language: Английский

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Efficient techniques and practices for wastewater treatment: an update

Discover Water, Journal Year: 2024, Volume and Issue: 4(1)

Published: Sept. 12, 2024

Language: Английский

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Recent technical and non-technical biorefinery development barriers and potential solutions for a sustainable environment: A mini review

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 9, P. 100586 - 100586

Published: Dec. 16, 2023

Language: Английский

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Sustainable production of glutamic acid by Enterobacter sp. strain isolated from cheese for potential protein biosynthesis: Optimization by Response Surface Methodology

Bioresource Technology Reports, Journal Year: 2023, Volume and Issue: 24, P. 101647 - 101647

Published: Oct. 4, 2023

Language: Английский

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Degradation of used engine oil by alcaligenes sp. strain isolated from oil contaminated site: Isolation, identification, and optimization of the growth parameters

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 8, P. 100516 - 100516

Published: Oct. 9, 2023

Language: Английский

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Chlorpyrifos degradation by Bacillus sp. strain UPMB10 isolated from polluted environment: Analysis and characterization of the metabolite by GC-MS

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 9, P. 100608 - 100608

Published: Jan. 3, 2024

Chlorpyrifos, being a frequently used organophosphate pesticide poses significant threat to human health due its prolonged presence in soil, plants, and water, this has raised concern. Consequently, researchers have shifted their attention towards finding methods mitigate toxicity or eliminate it from the environment. This highlighted importance of bioremediation. study was aimed at analyzing characterizing metabolites chlorpyrifos degradation by Bacillus sp. strain UPMB10 isolated polluted environment using Gas Chromatography-Mass Spectrometry. The bacteria were successfully utilizing enrichment technique mineral salt media, followed screening obtain best isolate. Identification isolate done morphological, biochemical, molecular levels, with focus on 16S rRNA gene. Phylogenetic analysis revealed close relationship between bacterium UPMB10. Optimization (One Factor A Time) determine growth conditions optimal obtained include, incubation time 48 hours, substrate concentration 4 g/L, pH 7.0, temperature 37 °C, an inoculum size 2 % (v/v), these quantitative data valuable insights into factors affecting efficient pesticide. Spectrometry demonstrated that achieved remarkable efficiency 99 after hours incubation. Notably, Mesitylene Dimethylmalonic acid as some degradation. result provides insight transformation products generated during process. exhibits capacity for degradation, making promising candidate bioremediation insecticides acaricides.

Language: Английский

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Biodegradation of dimethyl yellow by a locally isolated fungus from dye contaminated wastewater

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 9, P. 100650 - 100650

Published: Feb. 2, 2024

Fungal processes for the treatment of dye contaminated wastewater have advantage being cost-effective, environmentally friendly, and producing less sludge. This research was therefore aimed at isolating characterizing fungus capable decolourizing utilizing azo (dimethyl yellow) as a sole carbon source using one-factor-at-a-time. Pour plating method used to isolate on mineral salt media (MSM) following serial dilution. The then morphologically molecularly identified Aspergillus quadrilineatus strain BUK_BCH_BTE1 with accession number OK178927 based ITS1 ITS2 rRNA gene sequence molecular phylogenetic analysis. Characterization conducted by studying effect temperature, incubation time, substrate concentration, pH, inoculum size heavy metals. decolourization growth dimethyl yellow isolated optimal concentration 200 μɡ/mL, temperature 30 °C, 100–200 μL size, pH 5.0, 72-hour time. found tolerate up 4 ppm Hg, Cu Zn, maximum inhibition shown Cr Ar. LC/MS analyses intermediate compounds produced during suggested that in fungal biodegradation detected formation yellow, 2,6-dichloro-p-benzoquinone, 1,2,3,5-tetrafluoro-4-nitrobenzene, 3,4-dinitrobenzoic acid metabolites. finding from this study is suitable candidate bioremediation coloured effluents particularly containing these compounds.

Language: Английский

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