Wyniki wyszukiwania:

Refrigeration technique on account of its multidimensional approach is obligatory to meet the need for daily life. This mechanism virtually encompasses the transfer of heat from the low temperature region (source) to the high temperature region (sink) by means of a working fluid called refrigerant. Conventional refrigeration, air conditioning and heat pump systems have been employing halogenated refrigerants such as CFCs, HCFCs and HFCs over many decades due to their excellent thermodynamic and thermo-physical properties. But these refrigerants have potent negative impact on the environment....

The present study reports the use of Catla catla fish scales for the biosorption of Cr (VI) at the best operating conditions. The influence of various physico-chemical parameters like solution pH, agitation, Cr(VI) concentration, biomass dosage, contact time, biomass particle size and temperature were studied. The optimum pH for biosorption of Cr(VI) was found to be 1.0. More than 60% of the ions were removed within 60 min of contact and maximum removal was obtained after 4 hour. The adsorption capacity increased with increase in temperature and agitation speed. Freundlich and Langmuir...