My views on the pretreatment of water containing a small amount of oil during water treatment
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I think an additional reservoir can be added before processing, with some minor modifications; it is cost-effective, requires only a one-time investment, and yields permanent benefits. The specific method is as follows: a new reservoir is added to remove oil stains; one side of this reservoir is slightly lower in height than the other three sides, and then a scraper is installed on the water surface, with the highest water level serving as the reference point. Creating an outlet in the middle of the reservoir or slightly below that area can help remove oil contamination. It is best to have an outlet at the bottom of the tank as well, to facilitate the removal of waste water when cleaning the tank. When the oil on the water surface reaches a certain level, a scraper located at the top of the tank is used to remove the oil from the upper layer, and a guide channel is installed at the outlet to facilitate the removal of the oil. It should be noted, however, that the amount of water flowing in and out of the tank should not be too large; it is better to build a larger reservoir to store the clean water after the oil has been removed. So that there is no water ingress or insufficient supply when in use. Since this is merely my personal idea and there’s no opportunity to put it into practice, the specific figures need to be verified through actual experimentation.
In fact, at Baosteel these days, your equipment is directly integrated into the horizontal sedimentation tank; the scraper can move up and down – it sinks to the bottom of the water to scrape sludge, and rises to the surface level to scrape oil. All this is achieved with just one crane. :lol
What was said on the second floor is correct; this is widely used nowadays, and it is more suitable for the pretreatment of wastewater containing large amounts of oil. Yanshan will be used again.
Every chemical plant uses the method mentioned by the original poster. Is it the oil separator?
Thank you! I’m new to this field; our company has this problem, but it hasn’t been resolved yet. I thought no one used this method. It turns out someone else has already used it. It seems I still need to improve my studies.
Since one is in this field, it’s better for LZ to read more materials.
Oil separation tanks are generally used for this~~~:handshake
Indeed, many factories are using it nowadays; coking plants use it the most. The process involves a sedimentation tank – an oil separation tank – an aeration tank – biological treatment – secondary sedimentation – and then discharge