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Facile synthesis and implications of novel hydrophobic materials: Newer insights of pharmaceuticals removal

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Title Facile synthesis and implications of novel hydrophobic materials: Newer insights of pharmaceuticals removal
 
Creator Malsawmdawngzela, Ralte
Lalhmunsiama
Tiwari, Diwakar
 
Subject Fixed bed reactors
Hydrophobic materials
Mechanism of removal
Newer insights
Pharmaceuticals
Real matrix treatment
 
Description 520-531
The residual escape of pharmaceuticals from wastewater treatment plants (WWTP) is a serious environmental concern
due to the adverse effects towards living organisms. Therefore, it is important to devise the newer technologies for safe and
efficient elimination of emerging micro-pollutants from effluents of existing water treatment plants. Bentonite is grafted
with 3-mercaptopropyletrimethoxy silane by facile one-pot method to obtain dense composite material (MPTS/BENT).The
materials are characterized by the FT-IR, XRD, BET and SEM/EDX analytical tools. Various parametric experiments
conducted for the removal of tetracycline hydrochloride (TCH) and triclosan (TCS) using MPTS/BENT under batch
experimentations. Further, column adsorption experiments have been performed.The incorporation of organosilane with
bentonite is confirmed by FT-IR and EDX analyses. BET surface area analysis showed that the surface area of MPTS/BENT
is significantly small compared with pristine clay. pH dependent sorption of TCH and TCS is almost unaffected within the
pH 3.0 to 7.0. Rapid uptake of TCH and TCS by MPTS/BENT followed PSO kinetics. High percentage removal was
achieved at wide concentration range of pollutants. The uptake of TCH and TCS is unaffected on increasing the background
electrolyte concentrations for 1000 times. Column experiment confirmed the high efficiency of MPTS/BENT towards these
pollutants. Moreover, the removal of TCH/or TCS from real water sample at varied pH values showed that the synthesized
composite is selective and efficient towards these micro-pollutants. This study showed that the synthesized material, i.e.,
MPTS/BENT could be efficiently employed for the additional purification of WWTP effluents.
 
Date 2021-12-07T06:23:24Z
2021-12-07T06:23:24Z
2021-12
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/58602
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJBB Vol.58(6) [December 2021]