8.4# Centrifuge &Disc-centrifuge
Slurry in #1 centrifuge tank is pumped by #2 screw pump into #2 centrifuge: solids fall into cuttings box, liquid falls into #2 centrifuge tank and then feed into #1 disc-centrifuge by an inline pump to finish 3 phase separating: oil , water and solids. Dis-centrifuge needs water to discharge when working, a water tank is fixed one one side of #2 centrifuge tank. Meanwhile, on the other side of the centrifuge tank, an inline pump is used to feed slurry.

9.5# Disc-centrifuge & Surge Tank
1# disc-centrifuge treated oil goes into #5 unit’s #1 oil surge tank, water goes into #1 water surge tank. Slurry in #2 oil surge tank of #5 unit is pumped into #2 disc-centrifuge by inline pump: oil goes into #1 oil surge tank, water goes into #1 water tank and solids discharged to the outside. When the oil in #1 oil surge tank reaches to a certain level, liquid level alarm monitors the level and gives signal so the inline pump can transfer slurry into appointed position. At the same time, #1 water surge tank slurry is transferred to #6 gravity oil/water separator by an inline pump.
10.6#Gravity Oil/Water Separator, Water tank
Inline pump transfers slurry into #6 Gravity Oil/Water Separator: oil goes to #6 unit’s #3 oil surge tank and water goes to #6 unit’s #2 water surge tank. Slurry in #2 water tank is transferred by an inline pump to micro bubble treating unit for further treatment. Inline pump and pipes are fixed near #2 water surge tank, in case water is not clean enough, it can be pumped into #5 unit’s #2 oil surge tank and to be further treated by #2 disc-centrifuge.
11. Oil tank
Inline pump transfers the slurry into #7’s micro bubble treating unit, after treated: clean water is send into #7’s water tank and provide recycled water; oil goes to #6 unit’s #3 oil surge tank which is monitored by liquid level alarm. Inline pump is used to transfer the slurry into appointed area. With the whole system runs, waste sludge can be recycled and also solve the environment pollution issue.
12.Chemical Dosing unit
All outside pipes; all inlets are controlled by valves on and off; can add chemicals/water in different position.