national sugar institute: new product from sugar industry waste | Kanpur News

Kanpur: National Sugar Institute, Kanpur has succeeded in producing another value-added product from sugar industry waste. Senior researcher Shalini Kumari, working under Professor Narendra Mohan and Dr Vishnu Prabhakar Srivastava has developed a technique for producing “nano silica particles” from fly ash from sugar mill boilers.
“This fly ash is currently generally used for backfilling and considered a source of pollution as well. A look at the silica content of fly ash from boilers that use bagasse as fuel in sugar mills. We have been working on this project for two years and have now achieved a breakthrough in the development of low-cost technology,” said the director of the National Sugar Institute.
He said silica nanoparticles have many applications in paints, lithium batteries, as an adsorbent in pollution treatment, in biotechnology and biomedical applications, and as nano fertilizer for crop improvement. Looking at the market price of nano silica particles in rupees. 700-1000 per kg, a cheaper option will now be available in sweets. Explaining the technology, Shalini said: “There are several stages of acid, alkali and thermal treatments and the sodium silicate intermediate product was then treated with a surfactant and butanol to obtain the final product. It took time to standardize process parameters, especially temperature, dosage of various chemicals and pH to achieve the highest possible yield of around 80-85% nano silica particles from of ashes. To confirm the product, we performed structural analysis of the product using Dr. Vishnu Prabhakar Srivastava said. Regarding the amount of bagasse used as fuel, the amount of such ash can reach 1.0 to 1.5 million metric tons per year, he added.
He said that we are in the process of filing a patent for the developed technology and will also present an overview of the technology at the upcoming annual convention of the Sugar Technologists Association of India to be held on July 28-29, 2022 in Goa.

Rachel J. Bradford