Utilization of Paper Sludge Wastes for Treatment of Wastewater from Food Processing Industries

Ahmed H.A. Dabwan; Kiyoyuki Egusa; Daizo Imai; Hideyuki Katsumata; Tohru Suzuki; Satoshi Kaneco

doi:10.21743/

Authors

Ahmed H.A. Dabwan 1Faculty of Chemical Engineering Technology, Tati University College, Jalan Panchor, Teluk Kalong, 24000 Kemaman, Terengganu, Malaysia Author
Kiyoyuki Egusa Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan 3Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan Author
Daizo Imai Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan 3Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan Author
Hideyuki Katsumata Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan 3Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan Author
Tohru Suzuki Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan Author
Satoshi Kaneco Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan 3Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan Author

DOI:

https://doi.org/10.21743/

Keywords:

Food processing industries; Paper sludge ash; Coagulant; Wastewater treatment; Chemical oxygen demand

Abstract

The food processing industries usually produced large amount of wastewater containing fine and small particles. It takes long time for complete settlement of the fine and small particles in the wastewater. The coagulation method appears to become one of the useful treatments. New inorganic coagulant named “Agoclean‒P” has been developed from paper sludge ash. The treatment by coagulation and flocculation were carried out for the wastewater from three different food processing industries namely soup, tofu, and natto. “Hi‒Biah‒System”, which is an in‒situ solidification system, was used for the continuous treatment of wastewater. The parameters for the water quality were pH, five‒day biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids (TSS), total nitrogen (TN) and total phosphorus (TP). These parameters after the treatment became much lower values relative to those obtained before the treatment.