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Ionic liquids and deep eutectic solvents in wastewater treatment: recent endeavours
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"Researchers reviewed how ionic liquids (ILs) and deep eutectic solvents (DESs) can remove a wide range of contaminants—including microplastics, heavy metals, pesticides, and dyes—from industrial wastewater and other water sources. These green-chemistry alternatives offer a promising toolkit for decontaminating water supplies, which matters because microplastics and co-contaminants in drinking water pose compounding health risks."
Contamination in global water world has reached to such an extreme extent that scientist community is making tireless efforts to find the way to recycle, reuse or recirculate the wastewater by removing the sludge and other water pollutants apart. Newer water resources generation is another difficult but necessary challenge to increase the consumable water ratio in our environment which could be accomplished only by decontaminating them in a bulk measure. Ionic liquids (ILs) or deep eutectic solvents (DESs) have become unique in showing their capability of purifying or decontaminating considerable amount of water resources, be it wastewater from industries, sludge treatment or newer resources. Having some intricate and wide range of chemical properties, ILs and DESs with water-miscible, -immiscible or partially-miscible characters are becoming one of the choices of scientist community among other chemicals in solving the problem regarding removal of contaminants from water. Here in this article, we have highlighted some of the successful implementation of “green” ILs and DESs in addressing and participating in generation of consumable water by means of removal of several types of contaminants like, toxic metals and metal ions, organic wastes, surfactants, pesticides, dyestuffs, microplastics, lignocellulosic biomasses etc. It has been taken care of the concern about the possibilities of non-recovery costs of ILs and DESs in water due to usage of large amount of them which have been tried by recovering, removing or recycling them after accomplishing their decontamination role. Uniqueness, probable future prospects and the economic viability have been discussed and concluded comprehensively.
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Microplastics as an Emerged Contaminant and Its Potential Treatment Technologies
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Researchers reviewed how microplastics spread through environments via landfills and sewage systems, and evaluated emerging treatment technologies — including advanced filtration and biodegradation — that could reduce the amount of plastic reaching water supplies and food chains.
Reciclagem química conduzida pelo uso de líquidos iônicos, como estratégia para mitigar a poluição por microplásticos
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This study used low-toxicity ionic liquids to chemically recycle PET microplastics under mild temperature and pressure conditions. Ionic liquids offer a greener alternative to the harsh solvents typically needed for chemical recycling. The approach could help address microplastic pollution by providing a more environmentally friendly way to break down and recover value from tiny plastic particles that are difficult to collect and recycle by conventional means.
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