http://nopr.niscair.res.in/handle/123456789/1096 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/4186 Title: Characteristic studies of some activated carbons from agricultural wastes <br/> <br/>Authors: Jambulingam, M; Karthikeyan, S; Sivakumar, P; Kiruthika, J; Maiyalagan, T <br/> <br/>Abstract: Agricultural wastes like tobacco stem, bulrush Scirpus acutus stem, Leucaena leucocephala shell, Ceiba pentandrashell, Pongamia pinnata shell have been explored for the preparation of activated carbon. Characterization studies such as bulk density, moisture, ash, fixed carbon, matter soluble in water, matter soluble in acid, pH, decolourising power, phenol number, ion exchange capacity, iron content and surface area have been carried out to assess the suitability of these carbons as absorbents in water and wastewater. The results obtained show them to be good adsorbents for both organics and inorganics. Present study reveals the recovery of valuable adsorbents from readily and cheaply available agriculture wastes. <br/> <br/>Page(s): 495-500 http://nopr.niscair.res.in/handle/123456789/1274 Title: Book Review <br/> <br/>Abstract: The power law of information – Life in a connected world Reviewer: Jayanshu B Gandhi <br/> <br/>Page(s): 501-502 http://nopr.niscair.res.in/handle/123456789/1272 Title: Pervaporative recovery of perchloroethylene from spent solvent of electroplating industry: Experiment and modelling studies <br/> <br/>Authors: Kumar, N Senthil; Palanivelu, K <br/> <br/>Abstract: Pervaporation (PV), a membrane separation process, has been used to recover from spent solvent of perchloroethylene (PERC), one of the solvents used for surface treatment in electroplating industries. Commercial polydimethylsiloxane (PDMS) flat type membrane (thickness, 200 μm) was employed to remove PERC from spent solvent. A model, based on solutiondiffusion mechanism, was proposed to predict mass transfer during PV. The effects of permeate pressure and feed flow rate on PV were investigated to validate the model. A Pervaporation Separation Index (PSI) of 4198.61 was achieved finally. The moisture content in the final permeate was 1%. <br/> <br/>Page(s): 490-494 http://nopr.niscair.res.in/handle/123456789/1271 Title: Bio-delignification of lignocarbohydrates residues of Cymbopogon martini with Phanerochaete chrysosporium <br/> <br/>Authors: Dutt, Dharm; Garg, A P; Tyagi, C H; Upadhyay, A K <br/> <br/>Abstract: Cymbopogon martini, palma rosa grass, is cultivated for important palma rosa oil. Lignocarbohydrates residue (LCR) of C. martini left after steam distillation could successfully be used for the production of chemical grade pulp. C. martini had low lignin and more open and looser structure, which makes it suitable for biopulping. Openness of pile, heterogeneity of tissues and vast exposed surface area favor growth and colonization of LCR of C. martini by a multitude of microorganisms. Phanerochaete chrysosporium was grown in solid-state culture on LCR of C. martini. The growth of fungus on wheat bran as source of hemicellulose shows good enzyme activity. Wheat bran, a cheaper substrate, shows its commercial viability. LCR had 13.6% lignin, 74.4% holocellulose and a pentosan fraction of 25.4%. After 28 days at 40 °C, P. chrysosporium produced a residue from LCR of C. martini with a higher in vitro dry matter digestibility. P. chrysosporium degraded 30.11 % of lignin, 62.25% of pentosan and 18.60% of holocellulose of the original value of LCR of C. martini. <br/> <br/>Page(s): 483-489