Soil pollution mainly comes from oil and gas drilling, production and processing process, such as oily sludge, drilling waste mud, and waste residue from oily sewage treatment. Sometimes the crude oil, liquid type oil waste and other waste will also generate contaminated soil during the storage, transportation and processing.
The oily soil treatment solution main purpose is to separate oil phase ( water and solids content in oil should be less than 3%), water phase and solids phase ( oil content should be less than 2%), to recover oil and water, the oil can be sold, the water can be sent to waste water treatment facility or back to circulation system. The solids disposal is a big problem, the target is to safely dispose the solids at the lowest cost, and recycle the useful oil and water as much as possible. The oil could be sent to thermal unit to reduce the oil content below than 1% as per the regulation of the client’s country .We have standard design of oily soil treatment system for your option, also our technician can study you project and design a customized system for your special requirement within your budget.
The oily soil treatment system consists of crushing screening bucket, feeder, conveyor system, material pre-mixing treatment, cylindrical scrubbing pulping, first stage separation treatment, mud heating and diluted, shale shaker separation, 3 phase oil/water/solids separation centrifuge, chemical dosing unit, etc. The heating premixing module including heating and pre-mixing tank, mud agitator, feeding pump, electric control system, liquid level control system, heating pipeline and manifold guardrail, walkway; The shale shaker separation module including coarse solids separation shale shaker with spray nozzle and cover, feed pump, fine solids separation shale shaker with spray nozzle and cover, heating and pre-mixing tank, mud agitator, screw pump and static mixer, electric control system, etc.