The invention provides a treatment method for harmless
resource utilization of oily
sludge. The oily
sludge is crushed, mixed with water, stirred, and left to separate into
layers, and the overflow separates the upper layer of slick oil into the oil
recovery tank; the remaining
solid-
liquid phase is centrifuged for
solid-liquid separation, and the obtained free Water re-
osmosis is used, the remaining
solid phase is subjected to the second
reduction treatment, adding water and degradable treatment agent, stirring, after the
system is allowed to stand and separate, it overflows the upper layer of oil slick to the oil
recovery tank;
centrifugal separation reduction After
chemical treatment, the obtained
liquid phase is subjected to oil-water separation, the
oil phase enters the oil
recovery tank, and the water phase enters the
sewage reinfiltration tank for recycling, and the remaining solid phase is harmlessly treated; centrifuged, the
liquid phase is distilled The
plant treatment agent is recovered, the remaining oil enters the oil recovery tank, and the remaining
sludge is dried. The invention has the advantages of simple operation, wide application range, high oil removal rate, waste water reuse, and treated sludge can be directly used for farmland planting.