Oil-water separator for treating oil-containing waste water

Abstract

The invention relates to a new oil-water separator to process sewage containing oil. It relates to water treatment technology. Using whole separator as reactor, it has a multilevel recycle oil-water separation construction and it is made up with oil-water separation area, soil discharging area, exhalant region, inhalant region and distributor zone. According to physical hydrodynamics principle, fully use oil-water law of motion and make oil-water remove oil in multi levels and multi times with adopting principle of circularly pouring water. Using overflow weir, section area is added, which can separate more fine oil droplets from sewage. The invention has a strong adaptability. It has a better effect on kinds of oil-water, esp. sewage containing thick oil. It operates safely and has no secondary pollution. It can remarkably reduce technics and expense of water treatment.

Description

technical field [0001] The invention relates to water treatment technology, in particular to a novel oil-water separator for treating oily waste water. Background technique [0002] In the treatment of oily wastewater, grease traps have been widely used, but the traditional advection grease trap covers a large area and requires a large project investment. In order to achieve a better oil separation effect, it has to increase the residence time and add Chemical agents and other means are used to assist, which increases the cost of sewage treatment to a certain extent, and the water is polluted again during the process of adding chemicals, which increases the difficulty of sewage treatment. The traditional grease trap has poor adaptability to sewage, and the sources of oily sewage are various, so it has the characteristics of complexity and variability, while the general grease trap is difficult to adapt to the above characteristics of oily sewage. In this way, when the water...

AI Technical Summary

Problems solved by technology

[0002] In the treatment of oily wastewater, grease traps have been widely used, but the traditional advection grease trap covers a large area and requires a large project investment. In order to achieve a better oil separation effect, it has to increase the residence time and add Chemical agents and other means are used to assist, which increases the cost of sewage treatment to a certain extent, and the water is polluted again during the process of adding chemicals, which increases the difficulty of sewage treatment

The traditional grease trap has poor adaptability to sewage, and the sources of oily sewage are various, so it has the characteristics of complexity and variability, while the general grease trap is difficult to adapt to the above characteristics of oily sewage

In this way, when the water quality of sewage fluctuates greatly, it may lead to overload work of the subsequent process, which affects the treatment and purification of oily sewage to a certain extent, and affects the overall effect of the water treatment process

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