What are the differences between oil separators and oil-water separators?

    With the development of technology and the improvement of people's living standards, the discharge of sewage has also increased proportionally. Among them, oily wastewater produced by industries such as industry and catering accounts for a large proportion. If oily wastewater is directly discharged without treatment, the harm is very significant, such as environmental pollution, sewer blockage, aquatic biological poisoning, and even death. Therefore, we need to treat oily wastewater appropriately. When encountering oil-water separation treatment methods, we choose oil-water separation devices for oil-water separation operations. So, are the oil separation tank and oil-water separator the same thing?

    With people's increasing awareness of environmental protection, their requirements for living environment have also become higher. Among them, a mandatory regulation has emerged, which requires restaurants and large catering venues to install oil separators or oil-water separators. These two devices can effectively treat oil and water, avoiding environmental pollution caused by arbitrary drainage, but what are the differences between them?

    Here we first define these two terms: nowadays, people often refer to traditional oil separators as oil separators; And new types of oil separators such as inclined plate and horizontal flow separators are mostly called oil separators, oil-water separators, oil separation equipment, etc.

    After defining these two terms, let's now take a look at the differences between them, apart from addressing:

1. Basic characteristics

● The oil-water separator is a fully automatic and integrated oil-water separation equipment. By utilizing the different specific gravity of oil and water, efficient oil-water separation can be achieved, and functions such as heating, slag removal, sludge removal, and visual windows can be selected according to actual needs. Made of 304 stainless steel and designed in a closed manner, it can be used both above and below ground without blockage, odor, or cleaning. It is recommended to choose this oil-water separation solution.

● The traditional oil separation tank, which involves digging pits and placing pumps for oil-water separation, occupies a large area and requires regular cleaning of debris and sludge deposits to avoid sewage overflow. Especially the environmental pollution caused by the foul odor not only has a negative impact on the operating environment of public places, but also threatens people's health. It is not recommended to choose this option.

2. Performance characteristics

    The principle of oil-water separator and traditional oil separator is very similar, but for unpowered oil-water separator and unpowered oil separator, although both products use physical principles to separate oil and water, the separation effect is far different.

● Principle

    The traditional oil separation tank only uses the difference in density between oil and water.

    The oil-water separator was designed using principles such as oil-water density difference, inclined plate sedimentation, and coalescence, greatly improving the efficiency of oil-water separation.

● Oil discharge

    Traditional oil separation tanks are mostly manually used to remove oil. Increased the cost of manual maintenance.

The oil-water separator only needs to open the oil discharge valve for oil discharge, but it is difficult to achieve the oil discharge valve in the use of the oil separator.

● Stability

    Oil separators generally cannot perform oil-water separation online because the position of the oil discharge valve is fixed, and the oil-water interface is unstable when water enters the inlet, and the oil discharge is also unstable when the oil discharge valve is opened.

    The water inlet method of the oil-water separator has been changed to the upper inlet method during design, and the separation box adopts a sloping surface, greatly improving the effectiveness of oil-water separation.