Semarang (19/10) – Today, two prospective professors at Diponegoro University present their research results in a meeting held by the Academic Senate. The meeting which took place in the Undip Academic Senate Meeting Room was attended by the Chairperson, Deputy, and Secretary of the Academic Senate, along with the Board of Professors. The Plenary Meeting of the Senate Academic Professors Board starts at 09:00 WIB and is broadcast through the Microsoft Teams application.

The first presentation began with the presentation by Dr. Ing. Suherman, S.T., M.T with the title of paper “Development of Solar Dryers to Improve Quality and Capacity of Indonesian Food Products” Moderator: Prof. Tutuk Djoko Kusworo, S.T., M.Eng., Ph.D. In this research, hybrid solar drying has been successfully developed to dry several food products, namely vermicelli, tapioca flour, coffee beans, and seaweed. The prototype open-air LPG gas hybrid solar drying device was successful in drying the product faster. Solar drying results in a higher drying temperature than ordinary drying. The use of additional energy, namely LPG gas in the additional air heating unit, makes the drying process independent of the weather. The increase in production capacity has been achieved as evidenced by the faster drying rate and the operation is not dependent on the weather. The longer the drying time, the lower the drying efficiency. Conversely, the higher the drying temperature, the drying efficiency will increase. Thin-film modeling has been successfully applied to drying curves and is useful for scale-up processes. This finding concludes that solar drying has the potential to be applied in Indonesia considering that Indonesia has almost 12 hours of solar radiation throughout the year. Solar dryers are easy to design, manufacture and operate, and the investment and operation costs are very low. Solar drying has high economic value and is the right solution to increase the capacity and quality of Indonesian food products.

The event was continued with a presentation with the theme “Integrated Membrane-Surfactant Technology for Separation of Dyes and Its Implementation in Waste Management” by Nita Aryanti, S.T., M.T., Ph.D., moderated by Prof. Tutuk Djoko Kusworo, S.T., M.Eng., Ph.D. Ms. Nita Aryanti examined several studies related to the implementation of ultrafiltration-surfactant integration to separate dyes in the reactive dye waste model and treat batik waste and has been used. The implementation and socialization of community head membrane technology have been carried out through the application of ultrafiltration-surfactant integration for the processing of batik waste from batik SMEs Solo and Semarang and Pekalongan. Although membrane-surfactant integration is capable of reducing dye and can be implemented in sewage treatment, this method needs to be further developed to overcome limitations in this system.

Undip welcomed the increase in the number of prospective professors. The Head of the Academic Senate said that Undip is trying to achieve the target of 25 professors this year. “Hopefully it is following the aspirations and hopefully it achieves the target”, concluded Prof. Dr. Ir. Sunarso, M.S.