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Jiancong Liu, Manhong Ji, Jiabao Qin, Jia Zhu and Suiyi Zhu
Waste oil scum is commonly discharged during the air flotation process at oil-bearing wastewater treatment plants and disposed as an additive in cement kilns and/or furnaces. Herein, it was mixed with a magnetite-rich waste sludge and then completely rec...
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