02212nas a2200289   4500008004100000022001400041245016400055210006900219260011000288300001000398490000700408520106800415653003101483653002701514653002501541653003301566653001601599653003501615653001901650653002001669100001801689700002001707700002201727700002601749700002301775856012401798       2016                        eng d  a0376-471000aPhotocatalytic degradation of ciprofloxacin center dot HCl using Aeroxide (R) P-25 TiO2 photocatalyst: comparative evaluation of solar and artificial radiation0 aPhotocatalytic degradation of ciprofloxacin center dot HCl using  aDR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATION-NISCAIRcJAN  a16-220 v553 a<p>The photocatalytic degradation of ciprofioxacin (CFX) has been investigated using Aeroxide (R) P-25 TiO2 photocatalyst in the presence of solar as well as artificial radiation. The effects of different operating parameters like initial concentration of CFX, catalyst loading, pH of solution and effect of co-existing ions on photocatalytic degradation of CFX have been investigated with a view to establish the optimum operating conditions. It is observed that as the initial concentration of CFX increases, the rate of photocatalytic degradation decreases. Optimum catalyst loading is observed at 1 g L-1 for CFX concentration of 100 mg L-1. Over the pH range 3-11, maximum degradation rate occurs at pH 9. The mechanism and intermediates formed during the photocatalytic degradation of CFX are discussed based on UPLC-MS/MS analysis. From kinetic studies, it is found that the photocatalytic degradation obeys pseudo-first order kinetics. The degradation rate constant using solar radiation is about 1.7 times higher than that under artificial radiation.</p>10aAdvanced oxidation process10aAeroxide (R) P-25 TiO210aArtificial radiation10aCiprofloxacin center dot HCl10aDegradation10aPharmaceutical micropollutants10aPhotocatalysis10aSolar radiation1 aShetty, Rohit1 aKothari, Gaurav1 aTambe, Amruta, S.1 aKulkarni, Bhaskar, D.1 aKamble, Sanjay, P.  uhttps://library.ncl.res.in/content/photocatalytic-degradation-ciprofloxacin-center-dot-hcl-using-aeroxide-r-p-25-tio2-002582nas a2200253   4500008004100000022001400041245020300055210006900258260000800327300001100335490000700346520160900353653003101962653002801993653001902021653002802040653002302068100002402091700002202115700001902137700002402156700002302180856012502203       2022                        eng d  a2214-714400aDesign of hydrodynamic cavitation assisted intensified tertiary treatment unit for effective degradation of organic micropollutants in pharmaceutical industrial effluent: a case study with triclosan0 aDesign of hydrodynamic cavitation assisted intensified tertiary   cOCT  a1031320 v493 a<p>
	Increasing occurrence of micropollutants and trace amount of persistent organic contaminants (POC's) in the wastewater streams even after the well-established conventional treatment is a threat to human health, aquatic entities, and constitute a formidable challenge for the ecological security. In this regard, hydrodynamic cavi-tation based advanced oxidation treatment has attracted extensive attention towards removal of such micro scale pollutants from wastewater streams in the present scenario. Hence, the present work demonstrates the design and application of a rotating hydrodynamic cavitation (RHC) reactor with stator-rotor arrangement for effective degradation of organic micropollutants (triclosan being taken as the target pollutant) from tertiary effluents occurring in the pharmaceutical sector. The process performance was evaluated through optimization of geo-metric parameters of the reactor, various operating parameters as well as by studying the sole and synergistic performance of the HC process combined with other AOPs. The maximum degradation of Triclosan (TCS) ach-ieved by RHC alone was found to be 35.2 % and in synergism, with ozone, a maximum of 97.6 % degradation was observed. Further, to ensure the mineralization of the components, total organic carbon (TOC) contents of the samples were measured and the degradation pathway was predicted through LC-MS analysis. The techno-economic feasibility of the process were understood through economic and energetic analysis and technology transfer was done for replicating the same study for a pilot scale reactor.</p>
10aAdvanced oxidation process10aHydrodynamic cavitation10aMicropollutant10aPharmaceutical effluent10aTertiary treatment1 aMishra, Birupakshya1 aMukherjee, Anupam1 aMullick, Aditi1 aBhandari, Vinay, M.1 aMoulik, Siddhartha  uhttps://library.ncl.res.in/content/design-hydrodynamic-cavitation-assisted-intensified-tertiary-treatment-unit-effective