• Mahendra Kumar Yadav
• Narendra Mohan

India is known to be the second largest producer and biggest consumer of sugar in the world. The production of sugar is taken up using sugar cane as the raw material in all the factories except for one, which uses sugar-beet as the raw material. Sugar production, in general, remains around 28-33 million tonnes per annum; however, there are years of lower or higher production of sugar as the sugar production in the country is highly cyclic. In contrary to plantation white sugar, refined sugar is produced by two-stage crystallization, firstly raw sugar from sugarcane juice and then further processing the raw sugar to obtain refined sugar. As such, the production of plantation white sugar and raw – refined sugar differs significantly in terms of unit operations, processing technique, quality of the product, CAPEX and OPEX. As per the Indian scenario most of the backend sugar refineries use ion exchange resin or the granular activated carbon for the secondary decolourisation. The main problem with IER process is the disposal of dark brown brine influent and in case of GAC; it requires high initial investment cost. The paper describes ways & means to produce good quality refined sugar in Indian sugar industry by the use of an energy efficient membrane filter with powdered activated carbon (PAC) as a secondary decolourization agent with optimization of reaction time of PAC and its doses.

Carbonatation, phosphatation, raw sugar, refined sugar, powdered activated carbon, membrane filter

"Optimization for Achieving Higher de-colorization Efficiency in Sugar Refineries ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 6, page no.c1-c14, June-2021, Available :http://www.jetir.org/papers/JETIR2106271.pdf

"Optimization for Achieving Higher de-colorization Efficiency in Sugar Refineries ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 6, page no. ppc1-c14, June-2021, Available at : http://www.jetir.org/papers/JETIR2106271.pdf