Results in Engineering, Год журнала: 2025, Номер unknown, С. 104388 - 104388
Опубликована: Фев. 1, 2025
Язык: Английский
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 9, С. 100538 - 100538
Опубликована: Ноя. 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.
Язык: Английский
Процитировано
46
Renewable Energy, Год журнала: 2025, Номер unknown, С. 122673 - 122673
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
2
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100547 - 100547
Опубликована: Ноя. 8, 2023
Язык: Английский
Процитировано
33
Journal of Cleaner Production, Год журнала: 2023, Номер 429, С. 139543 - 139543
Опубликована: Ноя. 4, 2023
Язык: Английский
Процитировано
31
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100459 - 100459
Опубликована: Авг. 15, 2023
Chromium, a transition metal element widely distributed in the earth's crust, with valence from −2 to +6, but exists mainly form of trivalent and hexavalent states. Hexavalent chromium Chromium (VI) is often found soil ground water due its widespread industrial use such as tannery, electroplating, steel industries. toxic, mutagenic, carcinogenic, teratogenic much more toxic many plants, animals, bacteria inhabiting aquatic environments because it motile, highly soluble strong oxidizing agent that causes severe damage cell membranes while Cr (III) most stable relatively immobile system lower solubility. This study therefore, aims at identifying bacterium can reduce (IV) using pour plate technique on Luria Bertani medium amended K2Cr2O7. Graphs tables were used for data analysis. The effects incubation time, pH, temperature, inoculum size, potassium dichromate (K2Cr2O7) concentration then examined characterize based one factor time. To assess reduction, spectrophotometric 1, 5-diphenyl carbazide test (DPC) 370 nm was utilized. By molecular phylogenetic analysis partial 16s ribosomal RNA analysis, isolate be Acinetobacter sp. strain BUK_BCH_BTE 5. findings demonstrated tryptic soy broth (TSB), an optimal K2Cr2O7 level 200 mg/L, pH 6.5, 35 °C size 2%, well time 48 h, successful approach decreasing (VI). Following Nickel (Ni), withstand highest doses Lead (Pb), Mercury (Hg), Zink (Zn), Iron (Fe), Cadmium (Cd), Arsenic (As), Cupper, order. A reduced culture's (supernatant) larvacidal bioassay showed 30% decrease toxicity just hours, indicating promising candidate, reduction method less dangerous decontaminating chromium-contaminated environments.
Язык: Английский
Процитировано
26
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100453 - 100453
Опубликована: Авг. 12, 2023
Textile industry wastewater contains azo dye leftovers, which have a deleterious impact on most environmental systems. Because of safety and cost considerations, biological waste treatment is the best alternative. The goal study was to isolate characterized fungus that could decolorize use (Congo red) as single carbon source. After serial dilution mineral salt media, isolated using pour plating procedure. Based gene sequencing ITS1 ITS2 ribosomal RNA region molecular phylogenetic analysis strain identified Aspergillus quadrilineatus with accession number OK178927. Temperature, pH, substrate concentration, incubation period, inoculum size, influence interacting heavy metals in Mineral Salt Medium were all investigated during characterization process Congo red used sole This fungal grew decolorized at 400 μɡ/ml 30 °C temperature, 5.0 an size 200 μL, 72-h time. shown withstand up 6 ppm Zink (Zn), Chromium (Cr), Cupper (Cu), Iron (Fe) Arsenic (Ar) showing inhibition. Comparing red's metabolites standard database organic substances. LC/MS analyses intermediate compounds produced decolorization revealed formation Isamine blue, p-bromo-N-(2-naphthyl)-benzenesulfonamide, 4-acetomido-N,N-dicyclohexyl-3-nitrobenzene, azobenzene-2-sulfenyl bromide biodegradation red. might be good candidate for bioremediation.
Язык: Английский
Процитировано
23
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 9, С. 100553 - 100553
Опубликована: Ноя. 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.
Язык: Английский
Процитировано
23
Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 9, С. 100637 - 100637
Опубликована: Янв. 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.
Язык: Английский
Процитировано
11
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100418 - 100418
Опубликована: Июль 6, 2023
In recent years, the degradation of pollutants by microorganisms has emerged as a feasible and cost-effective strategy for restoring quality environment. Anthracene is an integral part many carcinogenic polyaromatic hydrocarbons (PAHs) causes skin irritation. The aimed study to investigate anthracene-degrading ability bacteria from environmental samples characterized them using enrichment technique. bacterial strain was identified Achromobacter xylosoxidans based on molecular identification achieved via 16SrRNA sequencing phylogenetic analysis. strain, designated BUK_BTEG6 (accession number OM52853), found efficiently degrade anthracene sole carbon energy source. A one factor at time (OFAT) approach utilized determine optimal growth factors that include substrate concentration, temperature, pH, inoculum size. Results indicated 400-600 mg/L conditions concentration with temperature be 35 °C, pH 7.5 after 72 hours incubation. Moreover, GC-MS analysis culture medium confirmed presence metabolites such 9-10 anthraquinone, cis 1,2 dihydro diol, catechol, cis-cis muconic acid. This isolate represents potential candidate use in bioremediation strategies eliminating contamination
Язык: Английский
Процитировано
22
Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100474 - 100474
Опубликована: Авг. 28, 2023
Organochlorine pesticides (OCPs) have wide applications in agriculture, industry, and domestic uses. Unfortunately, they are resistant to photolytic biodegradation exist for a very long time the environment. Their bioaccumulation humans aquatic biota could lead severe problems. In this study, surface water samples were collected from four sampling points along Okura River Eastern Senatorial District of Kogi State, Nigeria. They extracted with methylene chloride, reduced small volume using rotatory evaporator, subjected clean-up, analyzed gas chromatography mass spectrometry (GC-MS). The results show that level OCPs SP1, SP2, SP3 SP4 between ND - 0.1357 ± 6.3 × 10−5 mg/L, 0.0767 1.3 10−3, 0.046 7.5 10−4, 0.0211 2.6 10−3 respectively. health risk assessment was evaluated United States Environmental Protection Agency (USEPA) methods hazard quotient (HQ), average daily dose (ADD) cancer (CR). HQ, ADD CR less than USEPA recommended permissible limit 1, 10−4 10−6 Therefore, there is no risk. However, concentrations analytes detected slightly above standard maximum 100 ng/L. all anthropogenic activities disposal agrochemical wastes into should be controlled, provision quality inhabitants river.
Язык: Английский
Процитировано
22