Method for treatment of oily sludge
A treatment method and sludge technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., can solve problems such as reducing resource utilization efficiency and environmental pollution, and achieve the utilization of chemicals High efficiency, great economic benefits, and the effect of reducing water consumption
Pending Publication Date: 2019-07-26
TIANJIN UNIV
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The invention provides a method for treatment of oily sludge. The method includes the steps of primary conditioning and tempering treatment, namely adding sludge, water, a demulsifier and a flocculantin a certain proportion, and diluting the sludge to the flow state from a viscous state via full mixing with mechanical stirring; ultrasonic treatment, namely heating a sludge and water mixture subjected to primary conditioning and tempering into 45-55DEG C for ultrasonic treatment; secondary conditioning and tempering treatment, namely adding an alkaline dispersing agent and a dehydrating agentto carry out secondary conditioning and tempering treatment on depth-level oil which is not completed separated in the previous treatment for further oil-solid separation; centrifugal separation; drying and oil-water layer separation.
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