ZTM-BPD-CIRCOT

INTRODUCTION:
The productivity of a double roller gin having normal roller length used for ginning of long and extra long staple cottons is on an average 40-45 kg lint in one hour. Increasing productivity is one of the basic requirements not only to enhance the ginning efficiency but also to reduce ginning cost. Increase in productivity is currently achieved by increasing the length of the DIR with concomitant increase in power cost. Alternately, the two most important parts of the DR gin, viz, roller and beater can be independently controlled to increase the ginning efficiency and productivity per unit length of the roller.

INTRODUCTION:
Conventional chemical processing of pulping involves cooking of cotton plant stalks in a digester under high temperature and pressure in the presence of chemicals (12%- 16%) at 140°C-160°C for about 4 h. The effluents generated are viscous and toxic and cause environmental pollution. Biological processes offer an ideal and appropriate solution in this context. A large number of fungi and bacteria are found in nature, which can degrade lignin as well as other components of plant materials under aerobic as well as anaerobic conditions. Employing these microorganisms for softening of crop residues prior to chemical pulping can result in saving of a lot of energy and chemicals as compared to the conventional chemical process.