The invention relates to
industrial wastewater treatment, and discloses an industrial
oily wastewater treatment system. According to the technical scheme, the industrial
oily wastewater treatment system comprises an
oil separation and water collecting pond, a demulsification pond, a primary flocculated mud
sedimentation pond, a flotation pond, an
oxidation pond, a reduction pond, a secondary flocculated mud
sedimentation pond, an anaerobic pond and an
aeration pond which are successively connected, a first middle pond is arranged between the
oxidation pond and the reduction pond, a second middle pond is arranged between the reduction pond and the secondary flocculated mud
sedimentation pond, and a third middle pond is arranged between the secondary flocculated mud sedimentation pond and the anaerobic pond; oil and water are separated preliminarily by the
oil separation and water collecting pond; the demulsification pond breaks the
emulsion state of the separated
wastewater; flocculatesof oil is settled in the primary flocculated mud sedimentation pond; and by
chemical reaction in the
oxidation pond and the reduction pond, macromolecular organic matters in the
wastewater are decomposed;
activated sludge is placed in the anaerobic pond and the
aeration pond, and low molecular weight organic matters are biochemically degraded; and the industrial
oily wastewater is treated by organically combining a physical treatment method, a
chemical treatment method and a biological treatment method to achieve an expected
emission standard, and thus, the industrial oily
wastewater treatment system is effectively and practical.