A novel multi-stage external loop airlift reactor (MS-ELALR) has been designed to remove phenol and Cr(VI) from wastewater by means of their adsorption onto the surface of activated carbons. The multi-staging has been achieved by hydrodynamically induced continuous bubble generation, breakup and regeneration. The typical values of gas holdup, liquid circulation velocity, interfacial area and volumetric mass transfer coefficient of the MS-ELALR were found to be 0.42-0.66, 0.04-0.13 m/s, 70-300 m2/m3 and 0.01-0.5 s-1 respectively. Powdered activated carbons were prepared from four different...

Microfinance in North East India is a comprehensive reference book based on empirical research. The present volume aims to appraise the microfinance programme in the region with special reference to Assam and Meghalaya and to examine the socio-economic impact of microfinance with specific reference to SHG members. Apart from providing a theoretical framework of microfinance, the book covers extensively the pace of growth and development of microfinance in India with special reference to the north east India. A region wise comparative analysis on outreach of microfinance is also presented in...

Algal Biorefinery: An Integrated Approach