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The food processing industriesusuallyproduced large amount of wastewater containing fine and small particles. It takes long time for complete settlementof 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 outfor the wastewater fromthree different food processing industriesnamely 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.
Ahmed H.A. Dabwan, Kiyoyuki Egusa, Daizo Imai, Hideyuki Katsumata, Tohru Suzuki, Satoshi Kaneco. (2012) Utilization of Paper Sludge Wastes for Treatment of Wastewater from Food Processing Industries, Pakistan Journal of Analytical & Environmental Chemistry, Volume 13, Issue 2.
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