Physical demulsifying and coalescing and oil-water separating method for oil-water emulsion under micro-electric field effect
An oil-water emulsion, oil-water separation technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as high environmental requirements, high cost, and difficult oil recovery. Achieve the effect of low energy consumption and small footprint
Active Publication Date: 2013-08-14
重庆炬心智能科技研究院有限公司
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Problems solved by technology
The process of the chemical method is dosing-flocculation-filtration, and its characteristics are: a wide range of chemical reagents, convenient dosing, and simple operation; the disadvantage is that it is easy to cause secondary pollution, and the oil after flocculation separation is not easy to recover and the cost is high
The characteristics of the microbial method are: the use of bacteri
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[0036] Instance
[0037] The present invention can be used in oil, food, machinery manufacturing, ship transportation and chemical industries containing emulsified oil sewage. Such sewage cannot be separated from oil and water by pure gravity sedimentation, and a demulsifier needs to be applied for demulsification.
[0038] 6. The method for physical demulsification, coalescence and oil-water separation of oil-water emulsions under the action of a micro-electric field as claimed in claim 1, wherein the surface of the coalescing plate is at an angle of 5-15° with the horizontal direction to increase oily sewage The contact area with the coalescing plate increases the chance of emulsified oil droplets colliding with the lower surface of the coalescing plate.
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The invention discloses a physical demulsifying and coalescing and oil-water separating method for an oil-water emulsion under micro-electric field effect, and relates to the technical fields such as petroleum, petrochemical, food, machining and shipping industries. The technical scheme adopted is as follows: oil drops of oily sewage float upward and are coalesced and absorbed on the lower surface of a coalescing plate under the effect of the micro-electric field between the lower surface of the oil-water coalescing plate and a bottom plate of a box body. The oil drops coalesced and expanding in volume float upward from an oil spill hole, so that the oil and water are effectively separated. According to the invention, micro emulsus drops are transferred, absorbed and coalesced, and float upward under the effect of the micro-electric field through a pure physical method, and finally oil and water are separated. The oil-water separation rate can reach over 98%.
Description
technical field [0001] Purification of clean water for heavy equipment, purification of cooling water for machine tools, purification of oily sewage in manufacturing, purification of oily sewage in oil depots, treatment of oily sewage in engine rooms of large ships, treatment of oily sewage in oilfields, treatment of oily sewage in oil refineries, etc. [0002] The invention belongs to a physical demulsification and coalescence method and device for emulsified oil in oily sewage. Background technique [0003] Industrial production, aerospace, domestic wastewater and national defense facilities all have the demand for purification treatment of oily water and water-containing oil. Purification of oily water and water-containing oil has always been relevant. An important link in the production process is an important means to improve product quality and economic benefits, and is also a requirement for environmental protection emissions. [0004] Oil in oily water can be divide...
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Inventor 王小兵曹雨平徐燕赵庆梅赵会军张洪文袁惠新付双成
Owner 重庆炬心智能科技研究院有限公司
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