Supra molecular mechanism of the removal of 17-β-estradiol endocrine disturbing pollutant from water on functionalized iron nano particles
TL;DR: The reported method is fast, effective and eco-friendly and can be applied for the uptake of β-estradiol from water at laboratory, pilot and industrial levels in any water system.
About: This article is published in Journal of Molecular Liquids.The article was published on 2017-09-01. It has received 143 citations till now.
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TL;DR: In this paper, the authors describe the recent studies on the health and environmental problems due to pollution of persistent organic pollutants (POPs) and future prospectives, convention and regulation, control and removal measures of POPs have also been discussed.
401 citations
TL;DR: In this paper, the state-of-the-art of the removal of new emerging pollutants using new generation nano-adsorbents by adsorption technology is described and the efforts are made to discuss the sources contamination and toxicities of new emergent pollutants, preparation, characterization and separation of new generation adaption technology.
352 citations
TL;DR: The first line of defense provided by a plant is to reduce the uptake of metals when stimulated with toxicity of heavy metals and includes the help offered by cellular and root exudates that restricts metals from entering the cell as discussed by the authors.
Abstract: Heavy metals such as Fe, Mn, Cu, Ni, Co, Cd, Zn, Hg and arsenic are for long being accumulated in soils through industrial waste and sewage disposal. Although some of these metals are essential micronutrients responsible for many regular processes in plants, their excess, however, can have detrimental effects and can directly influence the plant growth, metabolism, physiology and senescence. Plants have different mechanisms to fight stress, and they are responsible to maintain homeostasis of essential metals required by plants. These mechanisms also focus on prevention of plants exposure to heavy metals present in the soil or providing tolerance to the plant by detoxifying the metals. Other mechanisms are specific and are initiated when the respective stress is encountered. The first line of defense provided by a plant is to reduce the uptake of metals when stimulated with toxicity of heavy metals and includes the help offered by cellular and root exudates that restricts metals from entering the cell. Many plants have exclusive mechanisms for individual metal ions and are involved in sequestering these ions in compartments avoiding their exposure to sensitive components of the cells. As a second line of defense, other mechanisms for detoxification of these metals are introduced that chelates, transports, sequesters and detoxifies these metal ions in the plant’s vacuole. During the time of metal toxicity, oxidative stress is pronounced in the cells and production of stress-related proteins and hormones, antioxidants, signaling molecules including heat-shock proteins synthesis is initiated.
345 citations
TL;DR: The established adsorption method is appropriate for advertisersorption of fenuron pesticide in waters and is speedy, cost‐effective, efficient and repeatable.
271 citations
Cites background or methods from "Supra molecular mechanism of the re..."
...Nano adsorbents are also called as new generation adsorbents and attaining reputation continuously in the area of water treatment by adsorption (Ali et al., 2018b, 2017c, 2018c, 2013b; Ali and Aboul-Enein, 2002b; Ali, 2018)....
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...Among the different methods, adsorption is the best approach because of several advantages associated with this (Ali et al., 2016a, 2016b, 2012a, 2012b, 2017b; Ali and Alothman, 2015; Ali and Aboul-Enein, 2002a; Ye et al., 2019)....
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...Sometimes, methemoglobinemia may occur due to high amount ingestions (Gosselin et al., 1984; Rao and Davidson, 1982; Ali et al., 2014b, 2006, 2017a; Aboul-Enein and Ali, 2001; Ali and Basheer, 2018; Basheer, 2018a, 2018b)....
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TL;DR: In this article, a batch process was proposed for the sorption of amido black dye in water on an iron composite nano material, and the results complied with Langmuir, Freundlich, Temkin and Dubinin-Radushkevich facsimilia.
174 citations
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1,531 citations
TL;DR: The conversion of waste products into effective adsorbents and their application for water treatment and the possible mechanism of adsorption on these adsorbent has been included in this article.
1,080 citations
TL;DR: The biomarker vitellogenin (viteLLogenin-synthesis assay) is an appropriate tool for determining endocrine effects and of chemical pollutants in effluents and how these influence sex differentiation in fish.
Abstract: The increasing preponderance of females in fish populations has become a matter of concern not only for scientists but also for environmental authorities. For example, in the extensive waterways in Berlin, Germany, 70% of the fish population is female. A twofold question should be asked: is the biomarker vitellogenin (vitellogenin-synthesis assay) an appropriate tool for determining endocrine effects (European Commission 1996) and of chemical pollutants in effluents (Castillo et al. 1997), such as estradiols, phthalates, alkyl-phenols, and alkyl-ethoxylates, influence sex differentiation in fish?
307 citations
TL;DR: In this article, the quest to find an economically viable substitute to active carbon adsorbent to remove toxic metal ions was described, and a brief discussion of design of batch and column adsorption experiments, development of inexpensive adsorbents, and experimental conditions of metal ions removal by batch or column procedures is included.
Abstract: Due to overgrowth in population, industrialization and civilization, demands for water are increasing geometrically. Therefore, alternative sources of water are required and wastewater treatment and recycling may serve this purpose. Among various water treatment technologies, adsorption onto activated carbon is in the front line due to its universal nature. Activated carbon is the best adsorbent able to capture inorganic, as well as organic, pollutants that contaminate water resources. Inorganic pollutants, especially metal ions, are more dangerous due to their toxic and possibly carcinogenic natures. Also they are most often persistent and difficult to biodegrade. The present article describes the quest to find an economically viable substitute to active carbon adsorbent to remove toxic metal ions. A brief discussion of design of batch and column adsorption experiments, development of inexpensive adsorbents, and experimental conditions of metal ions removal by batch and column procedures is included. Eff...
303 citations
TL;DR: In this paper, a critical evaluation of the contribution of adsorption technology at laboratory, pilot and process scales is presented for water treatment, through column operations, has been divided into two parts: removal of (i) inorganic and (ii) organic pollutants.
Abstract: Water is the most important and essential component of earth's ecosystem, playing a vital role in the proper functioning of flora and fauna. But water resources are contaminating continuously. The whole world may be in great water scarcity in the coming few decades. Among many water treatment methods, adsorption is considered to be one of the best. Many articles describe adsorption applications for water treatment in batch mode. Only few works report laboratory, pilot and commercial applications of adsorption technology. This review is a critical evaluation of the contribution of adsorption technology at laboratory, pilot and process scales. Water treatment, through column operations, has been divided into two parts: removal of (i) inorganic and (ii) organic pollutants. Attempts have been made to evaluate the application of adsorption columns at the ground level. Besides, efforts have also been made to emphasize the importance of adsorption columns at commercial levels to tackle water treatment problems i...
294 citations