With increasingly stringent management of catering wastewater discharge, the treatment of oily wastewater in the catering industry has become a key focus of inspections in various regions. Currently, the market is dominated by non-powered oil-water separators and fully automatic oil-water separators. So today, let’s discuss: What is an oil-water separator? How does an oil-water separator work? What are the advantages of an oil-water separator?

I. Non-Powered High-Efficiency Oil-Water Separator

The non-powered high-efficiency oil-water separator, also known as a grease trap, is a common type of oil-water separator.

(I) Working Principle and Features of the Non-Powered High-Efficiency Oil-Water Separator:

The non-powered high-efficiency oil-water separator utilizes the physical principle of the difference in specific gravity between oil and water, integrating methods such as filtration, sedimentation, and flotation to achieve oil-water separation. Through physical movement, oil particles float to the water surface after a period of slow flow and collision with inclined plates. With multi-stage treatment and separation devices, inclined plate and corrugated plate oil separation technology, and automatic liquid level control technology, the mixed oil in oily wastewater is automatically separated and concentrated into the oil collection tank for discharge.

(II) Advantages:

1. Simple and reliable structure, low production and operating costs, making it easily accessible for small and medium-sized restaurants, fast-food outlets, and chain stores;

2. Small footprint, easy and simple installation—just connect the inlet and outlet pipes to put it into use, with low engineering costs;

3. No energy consumption or consumables required, resulting in very low operating costs—only simple maintenance as per instructions is needed;

4. Concentrated floating oil and sediment, making collection and removal convenient, and creating conditions for enterprise-scale, centralized waste collection;

5. The oil-water separator requires no power, has extremely low operating costs, and does not require chemicals, preventing secondary pollution;