Abstract BACKGROUND The incorporation of Fe( III ) was performed in a natural clinoptilolite (Z‐N) for simultaneous phosphate and ammonium removal. RESULTS existence hydroxyl groups (≅Fe‐ OH the iron zeolite (Z‐Fe) enhances uptake from 0.6 ± 0.1 mg‐P g −1 Z‐N to 3.4 0.2 Z‐Fe. However, sorption capacity slightly decreases 33 2 mg‐N 27 equilibrium kinetics were well explained by Langmuir isotherm intraparticle diffusion model, respectively. CONCLUSIONS Both affected coexistence competing ions....

Abstract BACKGROUND This study evaluated a polymeric ion exchanger impregnated with nanoparticles of hydrated ferric oxide as selective sorbent for anionic P(V) species. The hybrid anion ( HAIX ) employed combines the durability and mechanical strength weak base exchange resin high sorption affinity towards RESULTS loading capacity at pH simulating expected conditions in treated wastewaters was 92 ± 3 mg P‐ PO 4 g −1 single component solutions. is affected slightly by common ions typically...

This study investigates the integration of social media platforms, specifically YouTube and TikTok, as educational tools in Project-Based Learning (PBL) within chemical engineering courses, with a particularly focus on Unit Operations. The research involved seventy-eight students from Universidad Técnica Particular de Loja across two consecutive semesters (April-August 2022 October 2022-February 2023). Students were tasked creating videos to communicate complex concepts. was utilized for...

This study reports the adsorption capacity of lead Pb2+ and cadmium Cd2+ biochar obtained from: peanut shell (BCM), “chonta” pulp (BCH) corn cob (BZM) calcined at 500, 600 700 °C, respectively. The optimal adsorbent dose, pH, maximum kinetics were evaluated. with highest removal is from (BCM) 565 °C in 45 min. experimental conditions were: 14 g L−1 (dose sorbent) pH between 5 7. sorption data best fitted to Freundlich isotherm model. High rates obtained: 95.96% for 99.05. Cd2+. BCH BZM...

Hydrothermally synthesized Linde type A (LTA) and faujasite X (FAU-X) zeolites are low-cost environmentally benign inorganic carriers for environmental applications. In this study, (oxy)hydroxides were incorporated onto LTA FAU-X to promote the phosphate adsorption. The performance of LTA-Fe FAU-X-Fe was evaluated through batch adsorption assays. complete evaluation performed recover from synthetic wastewater. effect pH, concentration, equilibrium, kinetic parameters on its further reuse in...

A parent Mg-Al-LDH was upgraded in its adsorption properties due to the incorporation of tri-metal species oxy(hydroxide) nanoparticles obtaining Mn2+/Zn2+/Fe3+/Mg-Al-LDH composite for phosphate recovery from simulated urban treated wastewater. The physicochemical synthesized make promising real application without being environmentally harmful. performance evaluated through batch assays. support iron, manganese, and zinc (oxy)hydroxide onto structure performed by precipitation, isomorphic...

In higher education, the learning of Unit Operations in Chemical Engineering and development practical activities became a real challenge. Therefore, use emerging technologies necessary to develop laboratory due inaccessibility equipment infrastructure. this study, Project-Based Learning methodology was assisted with Augmented Reality (AR) technology for subjects. The educational experiment application basic topic course as project each subject proposed. results were presented using Zappar...

The use of wastes is necessary to contribute environmental sustainability. In this study, ore mining tailings were used as the raw material and precursor for synthesis LTA zeolite, a value-added product. Pre-treated submitted stages under specific established operational conditions. physicochemical characterization synthesized products was performed with XRF, XRD, FTIR SEM, identify most cost-effective condition. zeolite quantification its crystallinity determined effects SiO2/Al2O3,...

Alzheimer's disease is characterized by a progressive deterioration of neurons resulting in steady loss cognitive functions and memory. Many treatments encounter the challenge overcoming blood-brain barrier, thus intranasal route non-invasive effective alternative that enhances drug delivery target organ-the brain-and reduces side effects associated with systemic administration. This study aimed at developing gels donepezil as an approach to disease. Three different were elaborated terms pH,...

This study aimed to investigate the sustainable use of recycled plastics, specifically polypropylene (PP) and high-density polyethylene (HDPE), in manufacture geogrids for geotechnical civil engineering applications. Plastics were collected from a recycling center, targeting containers used food, cleaning products, other domestic packaging items. These plastics sorted according Möbius triangle classification system, with HDPE (#2) PP (#5) being primary categories interest. The research...

Scutellaria volubilis and Lepechinia paniculata belong to the Lamiaceae family of species. They are used widely in traditional medicine Ecuador. The physical properties chemical composition essential oils from aerial part its foliation – flowering stage phase have been studied after their hydrodistillation. components these were investigated by means gas chromatography/mass spectrometry (GC/MS) chromatography/flame ionization detection (GC/FID) techniques. Thirty-seven determined oil S....

Eduardo Valarezoa*, Jandry Rosalesa, Vladimir Morochoa, Luis Cartuchea, Diana Guayaa, Santiago Ojeda-Riascosa, Chabaco Armijosa & Silvia Gonzálezaa Departamento de Química, Universidad Técnica Particular Loja, Ecuador

A zeolitic sample, named MT-ZLSH, was synthesized using mining tailings (MT) as the precursor material, resulting in a structure comprising: Linde type (LTA) and sodalite-hydroxysodalite (ZLSH). This naming convention reflects material’s origin its structural characteristics. The material further modified by incorporating lithium, producing MT-ZLSH-Li+. Physicochemical characterizations were performed, evaluated for potential to remove methylene blue (MB) from synthetic wastewater through...

The development of an efficient adsorbent is required in tertiary wastewater treatment stages to reduce the phosphate-phosphorous content within regulatory levels (1 mg L-1 total phosphorous). In this study, a natural muscovite was used for preparation muscovite/zeolite composites and incorporation Fe3+/Mn2+ (oxy)hydroxide nanoparticles recovery phosphate from synthetic wastewater. raw MC obtained muscovite/sodalite composite LMC were powder form adsorption batch mode. A muscovite/analcime...

Abstract This study is about the use of naturally occurring filtering materials for rainwater treatment drinking water proposal. Crushed gravel, ceramic spheres from natural clays, silica sand and zeolite were used as materials. The mineralogical composition was determined, being illite mordenite major components zeolite, respectively. Naturally simultaneous evaluated on two configuration pilot plant systems (biofilters) treatment. Three columns arranged in series with unstratified flooded...