Heavy metal removal
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Toxic metals in water systems pose a global health risk. Thus, multifunctional water monitoring and treatment materials are indispensable. Nickel ions, a frequent heavy metal pollutant, affect ecosystem function. This study investigates the utilization of Al2O3@g-C3N4 (AlCN) nanosorbent for adsorbing Ni (II) ions from aqueous solutions.
9p visergeyne 18-06-2024 0 0 Download
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Ebook "Water treatment technologies for the removal of high-toxicity pollutants" process requires interdisciplinary approach; it is critically important to stimulate interactions between medical doctors, chemists, physicist, materials scientists, engineers and policy makers, which are already experienced in their specific areas. It is also our ethical obligation to preserve existing water resources and existing eco systems enhancing their biodiversity.
338p giangdongdinh 28-05-2024 1 1 Download
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The presence of various types of contaminants such as heavy metals, emerging organic contaminants, pesticides, organic waste, organic dyes, radionuclide’s, fluorides, etc. cause water pollution. These pollutants are of concern to engineers, environmentalists and scientists. Due to the lack of freshwater, it is very important to recycle the wastewater after treatment to remove organic contaminates and heavy metal pollutants.
18p dianmotminh02 03-05-2024 1 1 Download
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Capacitive Deionization (CDI) has emerged as a promising and environmentally sound solution for addressing pressing water treatment challenges. This critical review meticulously examines the design, operational considerations, and performance metrics of CDI systems, particularly highlighting their significance in environmental applications under real-world conditions for handling different water sources such as groundwater, surface water, sea water.
22p viohoyo 25-04-2024 4 2 Download
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Due to its rising accumulation in the food chain and ongoing presence in ecosystems, metal contamination has piqued the curiosity of experts from all over the world. Environmentally hazardous heavy metal removal is being pursued utilizing a variety of techniques, such as ion exchange and precipitation, as well as chemical oxidation or reduction, electrochemistry, and filtration.
8p vimulcahy 18-09-2023 6 3 Download
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This study determined the heavy metals enrichments and their possible sources in industrial sludges from different sampling time. The results show that industrial sludge exhibits very high pollution for some typical heavy metals, especially Cu and Cd.
10p viironman 02-06-2023 3 3 Download
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Clean water for drinking and cooking has been a serious issue in rural areas of Vietnam, which is mainly due to high-cost treatment of the available water sources in such areas. In order to reduce the treatment cost, iron impregnated ceramic granules (IICGs) was synthesized using a mixture of locally available montmorillonite and crushed rice husk (with the rice husk size < 0.2 mm, IICGs size 0.2 mm – 0.45 mm).
7p vidoctorstrange 06-05-2023 2 1 Download
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In this paper, the aim was to evaluate the feasibility of a pellet reactor to treat the plating wastewater. The hydraulic retention time, the initial pH and molar ratio of carbonate to heavy metal was investigated to optimize the heavy metal removal efficiency in the pellet reactor.
6p vidoctorstrange 06-05-2023 8 4 Download
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This research is related to the effect of alginate-containing composite biosorbent on the sorption capacity of heavy metal Cd2+ ions. The study aims to determine the character and optimization of the sorption of Na-alginate-containing composite biosorbent on the sorption of heavy metal Cd2+ metal ions in an aqueous solution. The results suggested that composite biosorbent is suitable as a sorbent material for recovery and sorption of metal ions from aqueous solutions.
12p lyhuyenthu 31-01-2023 4 2 Download
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GO-NH2 (amino functionalized graphene oxide) was synthesized by grafting (3-aminopropyl) triethoxysilane onto the surface GO (graphene oxide). The GO-NH2with a higher surface area and many active sites was characterized and its effectiveness in removing Rhod B dye and Ni(II) ions from wastewater by adsorption was observed. The effects of pH, time, and strange ions on the adsorption efficiency were investigated.
17p lyhuyenthu 31-01-2023 8 2 Download
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Industrial wastes and their effluents containing dyes and heavy metals are a tremendous threat to the environment, and to treat these toxic waste streams, effective and environmentally benign methods are needed.
12p vihermione 06-01-2023 4 2 Download
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Hydrogels based on the polysaccharide ulvan from the green macroalgae Ulva fenestrata were synthesized and evaluated as an adsorbent for heavy metals ions and methylene blue. Ulvan was extracted from Ulva fenestrata using diluted hydrochloric acid and recovered by precipitation with EtOH.
13p viginny 30-12-2022 12 2 Download
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Membranes and filters are essential devices, both in the laboratory for separation of media, solvent recovery, organic solvent and water filtration purposes, and in industrial scale applications, such as the removal of industrial pollutants, e.g. heavy metal ions, from water.
10p viginny 30-12-2022 8 2 Download
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Alumosilicate materials zeolites are widely exploited due to porous structure and ion-exchange properties in several industrial, agriculture and veterinary applications. The mainly used zeolite for medical purposes in animals and humans is the natural zeolite clinoptilolite.
11p vironald 15-12-2022 7 3 Download
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Recently, hydrogels have been utilized as effective adsorbents to remove heavy metal ions from aqueous solutions. In this study, the composite hydrogels based on chitosan and poly vinyl alcohol (PVA) crosslinked by glyoxal were conducted towards the application of removing copper ions from water.
7p viharry 15-12-2022 5 2 Download
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In this work, the capacity of Opuntia ficus-indica (OFI) mucilage as a coagulant material for the removal of heavy metals (HM) present in water samples from the Yautepec River, Morelos Mexico, was studied. The functional groups of the OFI mucilage were identified by Fourier transform infrared spectroscopy (FTIR) before and after the removal process.
10p thebadguys 15-01-2022 8 0 Download
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This paper reviews the various important aspects of utilization of watermelon rind as a biosorbent for removing dyes and heavy metals from contaminated water. The effects of several factors such as pH, initial solute concentration, biosorbent dose, co-solute concentration, activation etc. has been reviewed in this paper.
13p thebadguys 15-01-2022 10 0 Download
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SiO2 supported core@shell nanoparticles (CSNs) have recently attracted great attention due to their unique, tunable, optical, photocatalytic, and higher adsorption properties. In this study, SiO2@CeO2 CSNs were synthesized using a chemical precipitation technique and characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM) analysis. XRD analysis showed that SiO2 particles were the core while CeO2 particles were the shell.
11p langthannam 29-12-2021 8 0 Download
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The use of microalgae biomass is an alternative solution to the problem of environmental pollution due to heavy metals, one of which is Cr metal in leather tanning liquid waste. However, the ability of biomass to adsorb heavy metals has limitations. Therefore, the algal biomass is immobilized with silica gel in order to obtain a stable structure. This research aims to study the absorption efficiency of Cr (VI) metal by the biomass of Spirulina sp. which is immobilized with silica gel from the tannery liquid waste.
11p langthannam 29-12-2021 6 0 Download
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The results showed that the electrolysis process was not affected by the electrode’s distance or area. The most efficient treatment for all three metals was achieved at a current value of 31.58 mA, which corresponds to a current density of 1.974 mA/cm2 under a voltage of 3 V, 8-h electrolysis time, wastewater pH
7p princessmononoke 29-11-2021 10 1 Download