Oily wastewater treatment device and method

A technology for waste water and waste water ponds, applied in separation methods, grease/oily substances/suspton removal devices, water/sewage treatment, etc., can solve problems such as difficulty in meeting standard requirements, achieve surface pollution reduction, easy operation, The effect of long service life

Inactive Publication Date: 2017-05-10
深圳市康源环境纳米科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this is still difficult to meet the standard requirements

Method used

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  • Oily wastewater treatment device and method

Examples

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Effect test

example 1

[0036] In this example, the powdered activated carbon / ultrafiltration ceramic membrane method is used to treat oily wastewater, wherein the water quality parameters of the oily wastewater introduced are: oil concentration: 112.70mg / L, turbidity: 9.23NTU; SS (suspended) after adding powdered activated carbon Particles) content is 45mg / L. The operating conditions of the ceramic membrane are: the initial transmembrane pressure difference is 4.4kPa, and the membrane flux is 60L / m 2 h; The dosage of powdered activated carbon is: 45mg / L.

[0037]At the processing time of 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, and 120 minutes, the detected oil concentration in water was 1.28, 1.15, 1.22, 1.06, 0.95, 0.96, 0.95, 0.97, 0.90, 0.93, 0.84, 0.79, 0.84, 0.89mg / L.

[0038] From the above test results, it can be seen that the oil concentration of the water sucked by the suction pump detected after half an hour is lower than 1mg / L, and the turbidity is always less than 0.2NTU, w...

example 2

[0040] In this example, the powdered activated carbon / ultrafiltration ceramic membrane method is used to treat oily wastewater. The water quality parameters of the oily wastewater introduced are: oil concentration: 112.50mg / L, turbidity: 9.17NTU; SS content after adding powdered activated carbon 60mg / L. The operating conditions of the ceramic membrane are: the initial transmembrane pressure difference is 4.7kPa, and the membrane flux is 60L / m 2 h; The dosage of powdered activated carbon is: 60mg / L.

[0041] At the processing time of 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120min, the detected water and oil concentrations were: 0.34, 0.36, 0.42, 0.37, 0.37, 0.34, 0.33, 0.41, 0.35, 0.34, 0.40, 0.42, 0.40, 0.38mg / L, all lower than 1mg / L, turbidity <0.15NTU, and the increase of transmembrane pressure difference after filtration for 2h was 0.2kPa.

[0042] It can be seen from the above test results that the clear water treated by the method of this example also fully ...

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Abstract

The invention discloses an oily wastewater treatment device and method. The oily wastewater treatment device comprises a wastewater tank, a suction pump, a powdered activated carbon storage tank and a contact tank, wherein the contact tank comprises a tank body and a ceramic membrane module, the ceramic membrane module is installed in the tank body, the tank body is provided with a water inlet, a water outlet, a residue discharging port and a powder inlet, the wastewater tank is communicated with the water inlet, the suction pump is communicated with the water outlet, the residue discharging port is formed in the bottom of the tank body, and the powdered activated carbon storage tank is communicated with the powder inlet to add the powdered activated carbon to the tank body. The ceramic membrane module is a container structure formed by a ceramic membrane and provided with an outlet, the outlet is communicated with the water outlet, and the ceramic membrane is formed by integrally firing a supporting layer and an effective layer provided with pore channel. By the adoption of the oily wastewater treatment device and the method, the water quality requirement of reused wastewater of an oil field can be met, and the suspended matter content and oil content of output water and the median size of suspended matter can all meet the highest requirement for reinjected water of the oil yield.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a device and method for treating oily wastewater. Background technique [0002] The water content of crude oil produced in many oilfields is increasing. Generally, the water content is 70% to 80%, and some oilfields even have a water content as high as 90%. The oil production sewage needs to be treated and then injected back into the underground oil-bearing formation to maintain the pressure of the oil formation and increase the water content. Oil production rate and recovery factor. The water quality of oilfield reinjection water will directly affect the development effect of oilfield water injection and the operation and service life of the entire water injection treatment system. Analytical method") basic requirements. [0003] At present, the water sources for reinjection mainly come from surface fresh water, ground water, oily sewage and sea water. Different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/40C02F1/28C02F1/44
CPCC02F1/283C02F1/40C02F1/44
Inventor 张锡辉宋佳苏子杰
Owner 深圳市康源环境纳米科技有限公司
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