A Comparative Analysis of Selected Wastewater Pretreatment Processes in Food Industry

A Comparative Analysis of Selected Wastewater Pretreatment Processes in Food Industry

Katarzyna Jaszczyszyn, Wojciech Góra, Zbysław Dymaczewski and Robert Borowiak

Abstract .

The article presents a comparative analysis of the classical coagulation with the iron sulphate and adsorption on bentonite for the pretreatment of wastewater in the food industry. As a result of the studies, chemical oxygen demand (COD) and total nitrogen (TN) reduction were found to be comparable in both technologies, and a 29% higher total phosphorus removal efficiency by the coagulation was observed.

After the coagulation and adsorption processes, a significant difference between mineral and organic fraction in the sludge was found (49% and 51% for bentonite and 28% and 72% for iron sulphate, respectively).

E3S Web of Conferences 30, 02003 (2018)
https://doi.org/10.1051/e3sconf/20183002003
Water, Wastewater and Energy in Smart Cities

Source: E3S Conferences