An oilfield turbid wastewater treatment device

Abstract

An oil field turbid wastewater treatment device, belonging to the field of wastewater treatment, comprising a solid-liquid separation tank connected to a sludge inlet pipe and a solid-liquid separation liquid addition pipe, a stirring device is arranged in the solid-liquid separation tank, and a solid-liquid separation tank It is connected with the liquid outflow pipe, the liquid outflow pipe is connected with the oil-water separation tank, a stirring device is installed in the oil-water separation tank, the oil-water separation tank is connected with the oil outflow pipe, the oil outflow pipe is connected with the oil storage tank, the oil-water separation tank is connected with the water outflow pipe, and the water The outflow pipe is located in the water storage tank, the third valve is arranged on the water outflow pipe, the solid-liquid separation tank is connected with the sludge outflow pipe, the sludge outflow pipe is connected with the sludge pump, and the sludge pump is connected with the sludge drying tank. The invention can conveniently separate the water, crude oil and sludge in the oilfield wastewater, and store the separated water and crude oil separately, and can dry the sludge for secondary utilization, and realize resource utilization under the premise of environmental protection. Make full use of it to realize the recycling of resources and environmental protection.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to an oil field turbid waste water treatment device. Background technique [0002] Oil is an indispensable resource for the development of modern society. With the continuous development of society, the population of the earth is also increasing, and the demand for oil is also increasing. However, at present, a large amount of water resources will be used in the process of oil extraction. The sludge generated in the process is pumped into the ground together with the water resources. Some crude oil and sludge in the oilfield wastewater will be discharged directly to pollute the environment, and many oilfields are located in remote areas, such as the Taklamakan Desert in Xinjiang, which is rich in oil resources, but is affected by the desert environment. Affects the scarcity of water resources. If water resources cannot be reused, it will not only waste water resources, but also ...

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Problems solved by technology

[0002] Oil is an indispensable resource for the development of modern society. With the continuous development of society, the population of the earth is also increasing, and the demand for oil is also increasing. However, at present, a large amount of water resources will be used in the process of oil extraction. The sludge generated in the process is pumped into the ground together with the water resources. Some crude oil and sludge in the oilfield wastewater will be discharged directly to pollute the environment, and many oilfields are located in remote areas, such as the Taklamakan Desert in Xinjiang, which is rich in oil resources, but is affected by the desert environment. Affects the scarcity of water resources. If water resources cannot be reused, it will not only waste water resources, but also greatly increase the cost of exploitation; and oilfield wastewater contains crude oil equivalent to 0.5-1% of the total crude oil output, and direct discharge is wasteful. resources; and the sludge in the existing wastewater is difficult to meet the discharge standard through treatment, and it is a waste of resources to fully treat it

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