@article { ISI:000323644600046,
	title = {Defluoridation of drinking water using pural (R) MG-20 mixed hydroxide adsorbent},
	journal = {Water Air and Soil Pollution},
	volume = {224},
	number = {9},
	year = {2013},
	month = {SEP},
	pages = {1727},
	publisher = {SPRINGER},
	address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS},
	abstract = {<p>The potential ofmixed alumina-magnesia hydroxide adsorbent (PURAL (R) MG-20) for defluoridation of drinking water using batch and continuous mode of operations has been reported in the present article. Systematic adsorption experiments were carried out to elucidate the effects of different process parameters such as adsorbent dose, initial fluoride concentration, pH of the solution and effect of other ions (usually present in groundwater). These studies were aimed to understand the adsorption behaviour of the PURAL (R) MG-20 adsorbents. Fluoride adsorption by PURAL (R) MG-20 sorbent was found pH dependent. Maximum fluoride removal efficiency was observed in the range of pH 5-7. Langmuir isotherm described the data better than Freundlich and Temkin isotherm models and the adsorption capacity was found to be 5.62 mg g(-1) at initial fluoride concentration of 5.13 mg L-1, pH 7 and contact time 24 h. The kinetic result shows that the fluoride sorption follows pseudo-second-order kinetics. Column breakthrough studies were performed to test the performance of the adsorbent media at continuous mode of operation. Thus, it can be concluded that PURAL (R) MG-20 adsorbent can be used directly for field applications since it shows high fluoride uptake capacity under simulated drinking water conditions and it is also commercially available.</p>},
	keywords = {Breakthrough studies, Defluoridation of drinking water, Kinetic modelling, Mixed hydroxide adsorbent},
	issn = {0049-6979},
	doi = {10.1007/s11270-013-1727-6},
	author = {Patankar, Gaurang V. and Tambe, Amruta S. and Kulkarni, Bhaskar D. and Malyshew, Alexander and Kamble, Sanjay P.}
}
@article {47670,
	title = {Ultrasound assisted curcumin recovery from Curcuma aromatica: understanding the effect of different operating parameters},
	journal = {Chemical Engineering and Processing-Process Intensification},
	volume = {169},
	year = {2021},
	month = {DEC},
	pages = {108604},
	type = {Article},
	abstract = {The present study deals with intensified extraction of curcumin from Curcuma aromatica by employing ultrasound-assisted extraction (UAE) approach also elucidating comparison with the conventional batch extraction to highlight the intensification benefits based on the usage of ultrasound. Understanding into the effect of operational parameters like type of solvent, extraction temperature, solid to solvent ratio and raw material size distribution as well as the equipment operating conditions as frequency and power on the extraction yield has been developed. Based on the results for extraction yield, the optimum conditions for UAE approach were 40 degrees C as temperature, 1:30 as solid to solvent ratio, 0.09 mm as the mean particle size, 240 W as ultrasonic power, 22 kHz as ultrasonic frequency and ethanol as the most suitable solvent. Under these optimum conditions, the highest extraction yield of 73.18\% was achieved in 2 h whereas batch extraction for 14 h resulted in 52.31\% yield clearly demonstrating the intensification due to ultrasound. Peleg{\textquoteright}s model was applied to explain the extraction kinetics of curcumin and the proposed model satisfactorily predicted the rates of extraction of cur cumin. Overall, UAE proved to be a better technique in terms of lesser time, lesser heating requirement and additional extraction yield.},
	keywords = {Cavitation, Curcuma aromatica, curcumin, Intensification, Kinetic modelling, Ultrasound assisted extraction},
	issn = {0255-2701},
	doi = {10.1016/j.cep.2021.108604},
	author = {Shirsath, Sachin R. and Sable, Sunil S. and Gaikwad, Shashank G. and Gogate, Parag R.}
}
