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heavymetals, etc ; biomineralization; bioremediation; biosorbents; microalgae; pH; potassium; uranium; wastewater; China; Show all 10 Subjects
Abstract:
... As a biosorbent, algae are frequently used for the biotreatment or bioremediation of water contaminated by heavy metal or radionuclides. However, it is unclear that whether or not the biomineralization of these metal or radionuclides can be induced by algae in the process of bioremediation and what the mechanism is. In this work, Ankistrodsemus sp. has been used to treat the uranium-contaminated w ...
heavymetals, etc ; adsorption; dyes; electrocoagulation; electrolysis; industry; methyl orange; nickel; polymers; spectroscopy; wastewater; China; Show all 12 Subjects
Abstract:
... Electrocoagulation (EC) has been widely used to treat the heavy metal wastewater in industry. A novel process of sinusoidal alternating current electrocoagulation (SACC) is adopted to remove Ni²⁺ in wastewater in this study. The morphology of precipitates and the distribution of the main functional iron configurations were investigated. Ferron timed complex spectroscopy can identify the monomeric ...
heavymetals, etc ; absorption; cadmium; hydroponics; mass spectrometry; pollutants; pollution; rice; root growth; root tips; stele; tetracycline; tillering; toxicity; transportation; China; Show all 16 Subjects
Abstract:
... Co-exposure to heavy metal and antibiotic pollution might result in complexation and synergistic interactions, affecting rice growth and further exacerbating pollutant enrichment. Therefore, our study sought to clarify the influence of different Tetracycline (TC) and Cadmium(Cd) concentration ratios (both alone and combined) on rice growth, pollutant accumulation, and transportation during the til ...
heavymetals, etc ; adsorbents; adsorption; chromium; ecosystems; formic acid; human health; pH; pollution; porosity; surface area; toxicity; wastewater; water quality; China; Show all 15 Subjects
Abstract:
... Zr-based metal-organic frameworks (MOFs) have been developed in recent years to treat heavy metals, e.g. hexavalent chromium Cr⁶⁺ pollution, which damages the surrounding ecosystem and threaten human health. This kind of MOF is stable and convenient to prepare, but has the disadvantage of low adsorption capacity, limiting its wide application. To this end, a novel formic acid and amino modified MO ...
heavymetals, etc ; carbon nitride; coordination polymers; detection limit; fluorescence; graphene; human health; mercury; quantum dots; semiconductors; spectroscopy; surface area; toxicity; China; Show all 14 Subjects
Abstract:
... The presence of toxic mercury (II) in water is an ever-growing problem on earth that has various harmful effect on human health and aquatic living organisms. Therefore, detection of mercury (II) in water is very much crucial and several researches are going on in this topic. Metal-organic frameworks (MOFs) are considered as an effective device for sensing of toxic heavy metal ions in water. The tu ...
... Spatial sampling is important for soil surveys and mapping, and the optimization of the sampling design is a hot topic. Most often in soil sampling, multiple purposes are usually involved and corresponding objectives need to be optimized as much as possible. In such cases, balanced optimization is needed to produce the best compromised solutions that reach the maximum common interest, but not to g ...
heavymetals, etc ; adsorbents; adsorption; hydrophobicity; protonation; Show all 5 Subjects
Abstract:
... Adsorption capacities and characteristics of heavy metal adsorbents have been investigated thoroughly, but the essential functional groups to bind heavy metal pollutants in composites have not been identified and confirmed separately. Previous researches reported that –OH, –NH₂, –CONH₂ or their protonation had binding effects to heavy metals. However, these descriptions were all based on the compl ...
heavymetals, etc ; adsorption; bioavailability; ecotoxicology; environment; Show all 5 Subjects
Abstract:
... Heavy metal (HM) pollution of soils is a globally important ecological and environmental problem. Previous studies have focused on i) tracking pollution sources in HM-contaminated soils, ii) exploring the adsorption capacity and distribution of HMs, and iii) assessing phyto-uptake of HMs and their ecotoxicity. However, few reviews have systematically summarized HM pollution in soil-plant systems o ...
heavymetals, etc ; humans; phytoaccumulation; politics; soil pollution; Show all 5 Subjects
Abstract:
... Heavy metal pollution remains a global environmental challenge that poses a significant threat to human life. Various methods have been explored to eliminate heavy metal pollutants from the environment. However, most methods are constrained by high expenses, processing duration, geological problems, and political issues. The immobilization of metals, phytoextraction, and biological methods have pr ...
heavymetals, etc ; genes; metabolism; metal tolerance; toxicity; Show all 5 Subjects
Abstract:
... Heavy metals bring long-term hazardous consequences and pose a serious threat to all life forms. Being non-biodegradable, they can remain in the food webs for a long period of time. Metal ions are essential for life and indispensable for almost all aspects of metabolism but can be toxic beyond threshold level to all living beings including microbes. Heavy metals are generally present in the enviro ...
heavymetals, etc ; soil parent materials; urbanization; China; Show all 4 Subjects
Abstract:
... Heavy metal concentrations in urban soils are likely to increase over time because of continuous urbanization and heavy metal emissions. To estimate the accumulation rates of heavy metals in urban soils, we collected soil samples from residential areas with different building ages in the metropolitan cities of Shanghai, Shenzhen, and Beijing, China. Heavy metal concentrations in the soils varied a ...
heavymetals, etc ; apples; cadmium; enzymes; pollution; toxicity; Show all 6 Subjects
Abstract:
... GABA, a four-carbon non-protein amino acid, plays an important role in animals and plants. We previously found GABA could alleviate alkali stress in apple seedlings. However, its physiological mechanism under heavy metal cadmium (Cd) stress need to be further studied. Thus, we explored its biological role in response to Cd stress. It was verified that 0.5 mM GABA could effectively alleviate Cd tox ...
heavymetals, etc ; arsenic; copper; iron; lead; magnetite; Show all 6 Subjects
Abstract:
... The migration and transformation of hazardous metals in copper smelting slags (CSS) threats the environment. However, the unclear relationship between phases and heavy metals in CSS hinders the development of harmless technology. In this work, we investigated the mineralogical composition of CSS and the corresponding heavy metal distribution, and explored the relationship between mineral phases an ...
heavymetals, etc ; cations; crosslinking; nanofiltration; polyamides; polymerization; Show all 6 Subjects
Abstract:
... Positively charged nanofiltration membranes are promising in water softening and heavy metal ion removal. However, facile modulation on their chargeability remains a great challenge. Here, we proposed a charged-monomer-engineered interfacial polymerization toward positively charged polyamide membranes. In particular, branched amino macromolecules (BAMs) with different charged group numbers and mol ...
heavymetals, etc ; adsorption; groundwater; microplastics; surface water; India; Show all 6 Subjects
Abstract:
... Researchers interested in a paper’s statement or aiming to acquire useful information from scientific papers rely heavily on references. Additionally, calculation accuracy is important for ensuring the technical soundness of scientific papers. However, inaccurate citations and calculations are common in scientific literature. A recently published paper in the Journal of Hazardous Materials reporte ...
heavymetals, etc ; bibliometric analysis; evolution; macrophytes; metalloids; remediation; Show all 6 Subjects
Abstract:
... Constructed wetlands (CWs) are increasingly employed to remediate heavy metal and metalloid (HMM)-polluted water. However, the disadvantages of HMM removal by conventional CWs (without enhancement), such as an unstable and unpredictable removal efficiency, hinder the reliability of this technology. The objective of this study was to review research on enhanced CWs for HMM removal. In particular, w ...
heavymetals, etc ; allotetraploidy; bioinformatics; diploidy; genes; phylogeny; rapeseed; Show all 7 Subjects
Abstract:
... The TIFY gene family plays important roles in various plant biological processes and responses to stress and hormones. The chromosome-level genome of the Brassiceae species has been released, but knowledge concerning the TIFY family is lacking in the Brassiceae species. The current study performed a bioinformatics analysis on the TIFY family comparing three diploid (B. rapa, B. nigra, and B. olera ...
heavymetals, etc ; adsorbents; bioaccumulation; cost effectiveness; microbiology; pollution; Show all 6 Subjects
Abstract:
... The ever‐rising environmental problems because of heavy metals emerging from anthropogenic activities pose an impending threat to all biota globally. Considering their persistence and possibility in biomagnification, they are prominent among pollutants. There has been an apparent shift of research interest in advancing cost‐effective and competent technologies to mitigate environmental contaminant ...
heavymetals, etc ; absorbance; adsorption; bentonite; clay; kaolinite; soil; Show all 7 Subjects
Abstract:
... In real soils the interaction of humic substances with clay minerals often occurs with the participation of metal cations. The adsorption of fulvic acids (FA) solution and their solutions in the presence of heavy metal ions (Pb or Zn) on two clay minerals (kaolinite and bentonite) was investigated by measurement of the optical density changes in the of equilibrium solutions. The FA adsorption by b ...
heavymetals, etc ; basins; macroinvertebrates; pollution; rivers; species richness; Show all 6 Subjects
Abstract:
... Features of the structure of bottom communities in small rivers contaminated and uncontaminated with heavy metals in Altai have been studied. A decrease in overall species richness and the number of macroinvertebrate species sensitive to contamination in polluted sites is noted. It is found that, in the impact area, the structural transformations of bottom communities do not depend on the heavy me ...