01612nas a2200169   4500008004100000020002000041245007200061210006900133250000800202300001100210520105000221100001501271700002001286700001501306700001701321856010401338       2017                        eng d  a978-177188578-200aDefluoridation of drinking water using fe-al mixed metal hydroxides0 aDefluoridation of drinking water using feal mixed metal hydroxid  a1st  a77-1003 aIn this chapter, we report findings from study carried out on removal of fluoride from drinking or potable water using Fe-Al mixed metal hydroxides. For experimental analysis, the product mixed Fe-Al hydroxides was prepared by applying a co-precipitation method. The resulting metal hydroxide was thoroughly characterized using analytical tests of X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. In order to characterize the equilibrium behavior of adsorbent, we study experimentally the effects of different operating parameters. The selected parameters for analysis are adsorbent loading, initial fluoride concentration, pH of the solution, and interfering ions (usually present in groundwater). The equilibrium adsorption data was later fitted for Langmuir adsorption isotherm, and experimental observations show a maximum fluoride adsorption capacity of 2.05 mg.g-1. The experimental results reveal that the adsorption dynamics follows a pseudo-second-order kinetic model.1 aTelang, T.1 aDeosarkar, M.P.1 aShetty, R.1 aKamble, S.P.  uhttps://library.ncl.res.in/content/defluoridation-drinking-water-using-fe-al-mixed-metal-hydroxides02055nas a2200193   4500008004100000020002000041022002000061245016200081210007000243250000600313260002400319300000900343520130500352100001501657700002001672700001501692700001701707856013701724       2017                        eng d  a978-177188578-2  a978-135184676-900aPhotocatalytic degradation of herbicide by using aeroxide®P-90 TiO2 photocatalyst and photo-fenton process in the presence of artificial and solar radiation0 aPhotocatalytic degradation of herbicide by using aeroxide®P90 Ti  a1  aNew YorkbCRC Press  a1-183 aThe presence of herbicide residues in the aquatic environment is an emerging issue due to their uncontrolled release through water and accumulation in the environment that may affect living organisms, environment, and public health. Consequently, the efforts are being made to develop the viable methods to eliminate the herbicides from the environment. The degradation of herbicide particularly amitrole has been investigated in aqueous solutions by using artificial and solar radiation. The effect of Aeroxide TiO2 P-90 photocatalyst loading (1-4 g L-1) on photocatalytic degradation of amitrole (50 mg L-1) was investigated. The degradation of amitrole (initial concentration ranging from 20 to 100 mg L-1) also studied by using photo-Fenton process (FeSO4 (10-30 mg L-1) and H2O2 (100-300 mg L-1)). The effect of pH (3-11), effect of co-existing salts (ammonium sulfate, sodium chloride, and sodium carbonate) as well as effect of type of radiation (artificial or solar radiation) on the degradation of amitrole was evaluated and optimized. The degradation of amitrole was accompanied by formation of intermediates which were detected by LC-MS. According to the results presented in this study, the photo-Fenton process using solar radiation is an efficient technique for degradation of amitrole.1 aTelang, T.1 aDeosarkar, M.P.1 aShetty, R.1 aKamble, S.P.  uhttps://library.ncl.res.in/content/photocatalytic-degradation-herbicide-using-aeroxide%C2%AEp-90-tio2-photocatalyst-and-photo-fenton