Process of Drilling Mud Zero Discharge Treatment

Process of of drilling mud zero discharge treatment :

1.Collection Unit. Through the solid control equipment, drilling waste mud enter into the screw conveyor, while adding water for dilution and mixing. Then through screw conveyor, the mud enter into the sand and gravel separation & washing and stirring device, after stirring, washing and spiral separation, a large number of inorganic particles, small rocks, cuttings can be separated from the drilling mud, which reduced the influences of type of material on the follow-up treatment. So that the abandoned mud can maintain the good liquidity. After the separation, the mud lifting into the slurry storage tank by the mud pump, while adding treatment chemicals, after stirring and mixing reaction, the mud lifting into the second processing unit the pump.

2.Solid-liquid separation unit. In order to reduce the moisture content and the pollutants of the mud cake, it is indispensable to add the treatment chemicals and the multiple stirring and washing. After the pharmaceutical treatment and repeated mixing and washing, the contaminants contained in the mud are washed into the water. If there is petroleum pollutant, it needs to be treated by the oil removal device first, and then the oil is recovered. The de-oiling mud is sent to the centrifugal extension by the pump for mud and water separation, and the solid matter in the mud can be discharged after the separation. The separated water enters the collection tank and then pumped by the pump to the third treatment unit.

Drilling Mud Zero Discharge Treatment
Drilling Mud Zero Discharge Treatment

3.Wastewater treatment unit. After centrifugation, the content of suspended solids in the water is relatively high. Through the flotation and filtration system, the suspended solids contained in the water are removed, reducing the organic content in the waste water and then enter the reverse osmosis system for concentration. Reverse osmosis out of the standard wastewater into the reuse water tank, pump back to use for the production. A small amount of concentrated liquid can also be treated by evaporation crystallization, salt can be sold to salt chemical manufacturers, turning waste into treasure.

The above is the whole drilling Mud Zero Discharge TreatmentProcess.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914


Contact person: Lily Wang

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Centrifuge Drilling Best Quality from Kosun Manufacturer

Centrifuge Drilling

The use of centrifugal principle for solid-liquid separation equipment, drilling fluid solid-phase control system is the last level of equipment.

For non-aggravating drilling cnetrifuge  is mainly used to remove the fine and harmful solid phase, the increase in drilling fluid is mainly used to remove excess colloid, control drilling fluid viscosity. It is also an effective equipment for handling drilling waste drilling fluids and preventing environmental pollution.

The electric motor drives the drum rotatably supported at both ends of the rolling bearing, and the drum drives the screw conveyor through the planetary differential and maintains a certain speed difference between the drum and the screw conveyor.

centrifuge drilling
centrifuge drilling


When the drilling fluid containing the solid particles is continuously fed into the machine from the feed pipe, the drilling fluid is accelerated in the screw shaft of the screw conveyor and flows from the inlet hole on the hollow shaft into the high speed rotating drum.


Optimized spiral structure for different applications
Through a large number of application results obtained from the experience
Material can be made of stainless steel, Hastelloy, titanium or nickel
Optimized wear protection for rough materials
Rugged design to meet harsh working conditions
Can be used for airtight and pressure operation
Heavy duty differential with a maximum torque of 120,000 Nm
OEM services are available worldwide

Decanter Centrifuge force, the drilling fluid in the drum to form a liquid ring layer, and the solid-liquid separation, coarse and heavier solid particles were thrown to the drum wall to form sediment layer, drum and conveyor .

There is a difference between the speed difference, sediment Was pushed by the conveyor to the small end of the drum, discharged from the slag discharge. The separated drilling fluid is discharged from the overflow port at the big end of the drum.