01774nas a2200229   4500008004100000022001400041245008600055210006900141260000800210300001400218490000700232520102300239653002101262653001901283653002001302653001901322100002001341700002401361700001801385700002701403856011401430       2019                        eng d  a0019-452200aFerets diameter estimation of activated carbon for effluent treatment application0 aFerets diameter estimation of activated carbon for effluent trea  cAUG  a1067-10740 v963 a<p>In this paper, activated carbon was produced of by chemical activation with phosphoric acid of agricultural wastes such as Arecanut shell of 25 micronmeter at 400 degrees C by slow pyrolysis. The BET surface area and iodine number surface area is calculated and compared. The FTIR spectra show the presence of activated carbon. The TGA revealed, activated carbon is thermally stable at 480 degrees C. The SEM shows the incorporation of activated carbon particles leads to the systematic change in morphology of activated carbon. Surface area plot shows the details of morphological change caused by iodine number surface area. Ferets diameter is estimated to know circularity of the particle. Methylene blue number, acid adsorption value is calculated to know adsorption capacity of the carbon. Thus results proves selection of ferets diameter, activation temperature, and impregnation ratio is important in determining the quality of activated carbon obtained and its use in industrial waste water treatment.</p>
10aactivated carbon10aArecanut shell10aPhosphoric acid10ateret diameter1 aJadhav, Abhijit1 aMohanraj, Govindraj1 aGokarn, Ashok1 aMayadevi, Susheeladevi  uhttps://library.ncl.res.in/content/ferets-diameter-estimation-activated-carbon-effluent-treatment-application01452nas a2200169   4500008004100000245008600041210006900127260000800196300001200204490000700216520086000223100002001083700002501103700002601128700001801154856011001172       2020                        eng d00aAdsorption of heavy metal on active carbon derived from coconut leaves agro-waste0 aAdsorption of heavy metal on active carbon derived from coconut   cJAN  a553-5620 v143 a<p>In this paper activated carbon is prepared from coconut leaves by chemical activation during slow pyrolysis at 673 K in an inert atmosphere. Activated carbon is prepared in the stiochiometric ratio of 1:1 (CL1), 2:1 (CL2) and 3:1 (CL3). Optimized 3:1 ratio is preferable for further study. BET surface area of CL3 activated carbon was found 1060.57 m2/g. It is greater than those of CL1 and CL2. The batch sorption study experiments were conducted with respect to solute concentration of 2.5–122.8 mg/l and solution temperature of 313–343 K. The Langmuir, Freundlich and Temkin isotherm studies were conducted. The experimental data fitted very well for the pseudo-first order and pseudo-second-order. The results have established good potentiality for the CL3 activated carbon to be used as a sorbent for the removal of lead from wastewater.</p>
1 aJadhav, Abhijit1 aMohanraj, Govindaraj1 aMayadevi, Suseeladevi1 aGokarn, Ashok  uhttps://library.ncl.res.in/content/adsorption-heavy-metal-active-carbon-derived-coconut-leaves-agro-waste