Adsorption of Cu(II) Ions onto a Cellulosic Biosorbent, Leaf Powder: Application in Water Treatment by Krishna Gopal Bhattacharyya, Arunima Sarma, Jyotirekha Sarma

“…The cellulosic units present in AILP provide a matrix of OH − , COO − , CN − and other anions that bind Cu(II) ions to the surface. The process was exothermic with ΔH 0 values of −96.1 kJ/mol to −105.4 kJ/mol, reflecting the strong Cu(II)–AILP linkages formed. …”
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Inferred Industrial and Agricultural Activities Impact on Groundwater Quality of Skhira Coastal Phreatic Aquifer in Southeast of Tunisia (Mediterranean Region) by Samira Melki, Amina Mabrouk El Asmi, Moncef Gueddari

“…For that, 20 water well samples covering the phreatic aquifer were analyzed for physical and chemical parameters, major cations and anions, nutrient elements, fluorine, and some trace metal elements. …”
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Chromium(III) Removal from Wastewaters by a Weakly Acidic Resin Containing Carboxylic Groups by S. Kocaoba, G. Akcin

“…A non-conventional regenerant solution such as hydrogen peroxide in an alkaline medium seemed very promising. The anionic species formed (chromate) was eluted quantitatively from the cation-exchange resin and separated. …”
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A review on egg waste-based adsorbents for the removal of organic and inorganic contaminants from aqueous solution by Alusani Manyatshe, Linda Lunga Sibali

“…Most studies have focused on using adsorbents based on eggshells to remove various contaminants, including dyes, phenols, aromatic carbons, anions, metals, and pharmaceuticals. In contrast, the eggshell membrane was mainly investigated for removing metals and dyes, with little to no research on phenols, aromatic carbons, and pharmaceuticals. …”
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Use of ferric salt solutions as leaching agents of Co, Ni, Cu, Fe, and Mn from metallic alloys of spent lithium-ion batteries and separation of iron from the leaching solution by Tran T.T., Lee M.S.

“…In these leaching systems, ferric and hydrogen ions act as oxidants and sulfate/bisulfate and chloride anions act as ligands. Optimal conditions for the complete leaching of metals by single ferric solutions were 0.35 mol/L Fe2(SO4)3 or 0.7 mol/L FeCl3 at 12.5 g/L pulp density for 60 min at 22oC. …”
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Supramolecular Assembly and Reversible Transition and of Chitosan Fluorescent Micelles by Noncovalent Modulation by An Liu, Hong Song, Puyou Jia, Ying Lin, Qingping Song, Jiangang Gao

“…The PIC micelles could be formed via electrostatic interaction between ammonium cations and carboxylate anions under mild alkaline conditions. The formation of the micelles dramatically blocks the nonradiative pathway and enhances the fluorescence of TPE moieties, and the maximum fluorescence intensity was achieved near the isoelectric point due to the restriction of intramolecular motion. …”
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A Study on the Understanding of Chemical Compositions of Deposited Fog Water over Central Indo-Gangetic Plain in India by Shahina Raushan Saikh, Md Abu Mushtaque, Sanat Kumar Das

“…Fog water collected on 11 foggy days during 1st to 21st January 2021, were analyzed for anions (SO42−, Cl−, NO2−, NO3−), and cations (NH4+, Na+, Ca2+, Mg2+, K+) using Ion Chromatography. pH of fog water ranged from 6.4 to 6.8 (Mean = 6.6 ± 0.1), depicting its alkaline nature. …”
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Adaptation features of the invasive species <i>Berberis aquifolium</i> Pursh and <i>Daphne laureola</i> L. in forest communities on the Southern Coast of Crimea by N. A. Bagrikova, Z. D. Bondarenko

“…Twelve factors were considered: soil humidity (Hd), humidity fluctuation (fH), substrate acidity (Rc), anionic composition (Tr), carbonate content (Ca), nitrogen content (Nt), granulometric (mechanical) composition of the substrate (Ae), illuminance of the community (Lc), thermal regime (Tm), aridity/humidity (Om), cryoregime (Cr), and climate continentality (Kn). …”
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Simultaneous Photocatalytic Reduction of Cr(VI) and Oxidation of Benzoic Acid in Aqueous N-F-Codoped TiO2 Suspensions: Optimization and Modeling Using the Response Surface Methodol... by Maria Antonopoulou, Aris Giannakas, Ioannis Konstantinou

“…The removal of Cr(VI) and BA in binary systems, containing both Cr(VI) and BA, showed a synergistic photocatalytic decontamination as BA significantly facilitated Cr(VI) reduction, whereas Cr(VI) accelerated also BA degradation. Due to the anionic-type adsorption onto TiO2 and its acid-catalyzed photocatalytic reduction, the removal of Cr(VI) decreased with increasing pH, while the degradation of BA followed also the same trend. …”
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Design and Application of Rapid Dewatering for Tailings Containing Sodium Silicate: Laboratory and Industrial Test Results by Guoquan Sun, Keping Zhou, Qian Kang, Daolin Wang, Chongchun Xiao

“…Various reagent combinations, lime and anionic flocculant (APAM) (L&A), sulfuric acid and APAM (S&A), and calcium chloride and APAM (C&A), were tested. …”
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Phosphorus species, fractions, and leaching risk in vermicompost-amended calcareous sandy loam soil by Mahsa Asariha, Mahboubeh Zarabi

“…Phosphorus, base cations and anions concentration, EC, and pH were analyzed in leachates and P species, leaching rate, and fractions in amended soils were determined, too.Results The HPO4-2 and MgHPO4 (aq) were the dominant species in the leachates and their highest total concentration was observed in 5% VC-amended columns. …”
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Escherichia coli stress response systems and their reaction to terahertz radiation by S. E. Peltek, E. V. Demidova, V. M. Popik, T. N. Goryachkovskaya

“…The obtained data indicate that exposure to nonthermal terahertz radiation induces E. сoli gene networks of oxidative stress and copper ion homeostasis, but does not activate those responding to antibiotics, protonophores, or superoxide anions. The fact that E. сoli/pKatG-GFP and E. сoli/pCopA-GFP biosensors have different activation and reaction periods when exposed to terahertz radiation and natural inducers suggests that reactions of oxidative stress and copper ion homeostasis systems to terahertz radiation are specific.…”
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The Effects of Storage on Sachet Water Quality in Ogun State, Nigeria by ZO Ajekunle, VO Ojekunle, AO Eruola, FF Oyebanji, KA Olatunde, BT Amujo, OR Sangowusi, AA Adekttan, AG Taiwo

“…Physical parameters were determined by instrumental methods. Cationic and anionic constituents were determined by standard titrimetric and spectrophotometric methods, trace and heavy water were determined by Atomic Adsorption Spectrophotometer. …”
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Crystal structure of catena-poly[bis(N,O-dimethylhydroxylammonium) [di-μ-bromido-dibromidostannate(II)]] by Valerii Y. Sirenko, Mircea-Odin Apostu, Irina A. Golenya, Dina D. Naumova, Sofiia V. Partsevska

“…The N,O-dimethylhydroxylammonium cation forms two hydrogen bonds with the axial bromide anions of the inorganic layers as acceptors, and leads to the cohesion of the crystal structure. …”
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Conductive supramolecular acrylate hydrogels enabled by quaternized chitosan ionic crosslinking for high-fidelity 3D printing by Lukas A. Bauman, Boxin Zhao

“…Furthermore, through varying the anionic acrylate concentration, ultimate strain between 222 % and 516 % was achieved at a constant elastic modulus. …”
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Polyelectrolyte Complexation versus Ionotropic Gelation for Chitosan-Based Hydrogels with Carboxymethylcellulose, Carboxymethyl Starch, and Alginic Acid by Elizabeth Henao, Ezequiel Delgado, Héctor Contreras, Germán Quintana

“…The objective of this work was to study differences in morphology and surface charge of hydrogels prepared by ionotropic gelation, polyelectrolyte complexation, and a combination of both methods. Thus, the anionic charge was provided by carboxymethylcellulose (CMC), carboxymethylated starch (CMS), and alginic acid (AA); calcium chloride (CaCl2) and chitosan (CS) were used for the ionotropic gelation and polyelectrolyte complexation, respectively. …”
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Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China by Liuyi Zhang, Baoqing Qiao, Huanbo Wang, Mi Tian, Jian Cui, Chuan Fu, Yimin Huang, Fumo Yang

“…The concentration order of anions and cations was as follows: SO42->NO3->Cl->F- and NH4+>Ca2+>Na+>K+>Mg2+, respectively. …”
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Chloride Ion Removal from the Wet Flue Gas Desulfurization and Denitrification Wastewater Using Friedel’s Salt Precipitation Method by Ping Fang, Zi-jun Tang, Xiong-bo Chen, Jian-hang Huang, Zhi-xiong Tang, Chao-ping Cen

“…Factors affecting the Cl− removal, such as Ca(OH)2 dosage, NaAlO2 dosage, solution’s initial pH, solution’s temperature, reaction time, stirring speed, and anions (SO42−, NO3−, and F−), were investigated, and the optimal experimental conditions for Cl− removal were determined. …”
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Synergistic Emission Reduction of Particulate Pollutants in Coal-fired Power Plants Using Ultra-low Emission Technology by Leixing Tao, Yanyan Wang, Chunmei Yue, Zhigang Shen, Zhichao Liu, Qizhen Liu, Junchao Lu, Jian Wang, Honglei Ding, Weiguo Pan

“…TPM contains solid and liquid contaminants and condensable particulate matter (CPM), which is mainly composed of sulfate and various anions, cations, and metal ions. This study selected three typical large-capacity coal-fired power plants in Shanghai retrofitted with ultra-low emission technology and monitored their emissions of PM2.5, SO3, and CPM during power generation. …”
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An experimental study of the physical mechanisms of fluid flow in tight carbonate core samples by binary surfactants by Ayomikun Bello, Anastasia Ivanova, Alexander Rodionov, Tagir Karamov, Andrey Morkovkin, Alexey Cheremisin

“…The results showed a significant influence of the nonionic surfactant with a considerable reduction in adsorption values of 53% and 28% in its anionic-nonionic and cationic-nonionic blends, respectively. …”
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