02126nas a2200229   4500008004100000022001400041245011200055210006900167260000800236300001100244490000700255520135400262653001501616653001701631653001601648653001801664653002001682100001901702700002401721700002201745856012901767       2021                        eng d  a2214-714400aSafe water and technology initiative for water disinfection: application of natural plant derived materials0 aSafe water and technology initiative for water disinfection appl  cOCT  a1022800 v433 aSafe drinking water is the necessity of life. The present study reveals use of natural resources such as plant extracts and natural oils for water disinfection. Differences between oil and water soluble additives were highlighted for plant extracts and insoluble natural oils. A hybrid hydrodynamic cavitation process was quite effective in both the cases and high rates of disinfection were achieved. Studies were reported using oils (ginger, turmeric, lavender, tulsi) and rhizome derived plant extracts such as ginger, turmeric and mango ginger, as additives in process intensification (0.1% v/V). A vortex based cavitation device (vortex diode, nominal capacity 1 m3/h) was used with pressure drop of 1 bar. A high disinfection of 96% and 88% was obtained in 15 min for ginger oil and mango ginger extract respectively as compared to 44% using cavitation alone. Acoustic cavitation gave 94% and 30% disinfection with and without additive-mango ginger extract. The FTIR analyses before and after cavitation, with ginger additive, showed no by-products formation and indicated gingerol as active component in disinfection. The per-pass disinfection values were also higher, up to 5 times than cavitation alone. Hybrid hydrodynamic cavitation using natural plant derived materials can offer a promising technology alternative in water disinfection.10aCavitation10aDisinfection10aNatural oil10aPlant extract10aWater treatment1 aMane, Maya, B.1 aBhandari, Vinay, M.1 aRanade, Vivek, V.  uhttps://library.ncl.res.in/content/safe-water-and-technology-initiative-water-disinfection-application-natural-plant-derived01910nas a2200241   4500008004100000022001400041245006100055210006100116260000800177300001100185490000800196520119900204653002101403653001601424653001501440653002001455653001901475100001701494700002401511700001901535700002101554856009301575       2022                        eng d  a1369-703X00aStudies in instant water disinfection using natural oils0 aStudies in instant water disinfection using natural oils  cNOV  a1086310 v1873 a<p>
	The present research reveals an instant and simple process for drinking water treatment by employing specific natural oils having antimicrobial properties to ensure complete elimination of harmful bacteria. The disinfection was studied for two different model bacteria, Gram-negative E. coli and Gram-positive, S. aureus. Seven natural oils, ajwain, thyme, oregano, peppermint, harsingar, cinnamon leaf and black pepper oil were evaluated and were found to yield 100% water disinfection within 1 min except for harsingar and black pepper oil. The process was also effective for the instant and 100% disinfection of real well water. The methodology for altering zeta potential, to an extent of 130%, for instant disinfection in drinking water treatment helps in selecting natural oils. Molecular docking studies indicated natural oils action as potential inhibitors of bacterial DNA gyrase. The studies indicate one of the lowest operating costs comparable to conventional chlorination. The simple meth-odology not requiring complex equipment has the potential to provide many options for implementations-from portability, household application to large scale water treatment plants.</p>
10aBacteria removal10aNatural oil10aTechnology10aWater treatment10aZeta potential1 aDixit, Divya1 aBhandari, Vinay, M.1 aMane, Maya, B.1 aBalapure, Kshama  uhttps://library.ncl.res.in/content/studies-instant-water-disinfection-using-natural-oils