Removal of emerging contaminants from the environment by adsorption
TL;DR: Adsorption is a promising method worldwide for EC removal since it is low initial cost for implementation, highly-efficient and has simple operating design.
About: This article is published in Ecotoxicology and Environmental Safety.The article was published on 2018-04-15. It has received 587 citations till now. The article focuses on the topics: Environmental impact of pharmaceuticals and personal care products & Wastewater.
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TL;DR: Immobilization is highlighted as a promising approach to improve enzyme catalytic performance and stabilization, as well as, to protect the three-dimensional structure of the enzyme against the undesirable consequences of harsh reaction environment.
309 citations
TL;DR: In this article, the occurrence of pharmaceuticals in the environment, its major causes, and implications along with effective procedures for their removal from contaminated water have been studied, where adsorption stands out as a promising treatment method, since it offers advantages such as lower energy consumption and simpler operation conditions in comparison to other tertiary treatments.
Abstract: Pharmaceuticals are environmental contaminants that have been widely detected in aquatic media. In this review, the occurrence of pharmaceuticals in the environment, its major causes, and implications along with effective procedures for their removal from contaminated water have been studied. Adsorption stands out as a promising treatment method, since it offers advantages such as lower energy consumption and simpler operation conditions in comparison to other tertiary treatments. Although commercial activated carbon is extensively studied as an adsorbent of pharmaceuticals, its large-scale application is limited by the high costs. Therefore, different nonconventional low-cost materials have been investigated and adsorbents based on clays, biochars, chitosan, agricultural and industrial wastes, and metal–organic frameworks have been addressed in many studies for pharmaceuticals uptake from water and wastewater. This article reviews key publications on this subject, discussing adsorption performance in ter...
297 citations
TL;DR: In this paper, a review of biochar modification methods for removing emerging contaminants (ECs) from water by modified biochar is presented. And the main research directions and trends, as well as recommendations and suggestions for future development are pointed out.
279 citations
TL;DR: The purpose of this study is to consider the adsorption as a beneficial treatment of emerging contaminants also advanced and cost effective emerging contaminates treatment methods.
246 citations
TL;DR: A detailed description of a variety of chemical, physical, and biological approaches for pesticide removal from water, such as advanced oxidation processes, adsorption, activated sludge, membrane bioreactors, and membrane technologies is provided in this article.
Abstract: The levels of pesticides in water have increased due to their excessive use in the modern agricultural domain Choosing a suitable water treatment method for pesticide removal depends on the type of pesticide and the efficacy of the treatment process This review critically discusses and provides a detailed description of a variety of chemical, physical, and biological approaches for pesticide removal from water, such as advanced oxidation processes, adsorption, activated sludge, membrane bioreactors, and membrane technologies Both single-treatment and hybrid methods are thoroughly described and critically discussed The use of hybrid removal techniques offers potential opportunities to develop innovative pesticide removal techniques A thorough analysis of influent composition and recognition of the best removal technique is very important to design a water treatment plant that targets the maximum possible removal rate for different types of pesticides Furthermore, the decentralization of water treatment was also discussed in which it is an important approach that would lead to better effluent water quality for lower prices Many affordable techniques such as activated sludge and adsorption by agricultural adsorbents showed high efficacy in treating high levels of different pesticides
244 citations
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TL;DR: Understudied areas of emerging contaminant (EC) research in wastewaters and the environment are identified, and direction for future monitoring is recommended, and the fate and impact of ECs in all exposed environmental compartments are studied.
1,939 citations
15 Feb 2012
TL;DR: Graphene oxide is a potential effective absorbent for tetracycline antibiotics and can be used to remove them from aqueous solution and has a better rate constant of sorption, 0.065 g mg(-1) h(-1), than other adsorbents.
Abstract: Significant concerns have been raised over pollution of antibiotics including tetracyclines in aquatic environments in recent years. Graphene oxide (GO) is a potential effective absorbent for tetracycline antibiotics and can be used to remove them from aqueous solution. Tetracycline strongly deposited on the GO surface via π-π interaction and cation-π bonding. The adsorption isotherm fits Langmuir and Temkin models well, and the theoretical maximum of adsorption capacity calculated by Langmuir model is 313 mg g(-1), which is approximately in a close agreement with the measured data. The kinetics of adsorption fits pseudo-second-order model perfectly, and it has a better rate constant of sorption (k), 0.065 g mg(-1) h(-1), than other adsorbents. The adsorption capacities of tetracycline on GO decreased with the increase in pH or Na(+) concentration. The adsorption isotherms of oxytetracycline and doxycycline on GO were discussed and compared.
1,164 citations
TL;DR: This review summarizes the recent literatures on the adsorptive removal of various hazardous compounds mainly from fuel, water, and air by virgin or modified MOF materials.
1,121 citations
TL;DR: In this article, low-cost byproducts from agricultural, household and industrial sectors have been recognized as a sustainable solution for wastewater treatment, which allow achieving the removal of pollutants from wastewater and at the same time to contribute to the waste minimization, recovery and reuse.
1,105 citations
TL;DR: The adsorptive purifications of contaminated water with MOFs are discussed, in order to understand possible applications of MOFs in clean water provision and plausible adsorption or interaction mechanisms and selective adsorptions are summarized.
1,088 citations