Oil depot sewage treatment

Add a grease trap, regulating tank and air flotation tank, the rest is the same as ordinary sewage treatment

Refined oil mainly consists of diesel and gasoline. The main sources of wastewater may include ballast water, pipeline cleaning, tank cleaning, etc. The author has also determined whether, in addition to refined oil, there are storage tanks for other chemicals in the irrigation areas. Because of the discontinuity of wastewater discharge in these irrigation areas, especially the different properties of different pollutants and the large number of varieties, this means that there will be some impact on the later biological treatment, and it may also be an important reason why the final biochemical treatment of the wastewater cannot be achieved. Depending on the responsibility for wastewater, two options are available. 1. For refined oil, adjust + air flotation + nutshell + quicksand filtration + biochemistry. 2. If the ingredients are complex and highly intermittent, use air flotation + nutshell + sand filtration + ultrapotential + biochemistry. Since the main components of refined oil are, oil separation suggestions are of little significance. refer to! This post was last edited by zfc318 on 2009-4-21 12:28 ]

. . Wastewater separation. . . The oily wastewater is filtered through air flotation sand and combined with domestic sewage for biochemical treatment.

Nowadays, many oil depot sewage is treated by entering the corrugated plate separation device through the grease trap regulating tank, and then into the oil-water separator. Oil-water separators generally use walnut shell filters. Is this okay?

If there is no domestic sewage, it should be ok. If so, then biochemical treatment should be considered. Oil depots generally do not contain other types of pollutants, so there should be no need for special treatment. The brother on the 4th floor suggested that it is good, but on the one hand, the cost is very high, and on the other hand, it is not necessary. I think it is enough to use air flotation as pretreatment.

Can oil depot sewage and domestic sewage be separated and domestic sewage treated normally?； The oil content in oil depot sewage is often very high, which will have an impact on the wastewater treatment system and return the sewage with high oil content to the production line (this method is applicable to some production processes)

Some people do not agree with building a grease trap, but the general considerations are different. This kind of sewage treatment is generally required. It not only removes floating objects, but also isolates organisms above it. The downstream biochemical section handles dissolved organic matter

Remove the oil first and reduce the oil content to less than 10mg/L before proceeding with biochemistry.

Separating domestic sewage from oily sewage is a general principle in plant design. The oily sewage first goes through oil separation and recovery to control the oil content, then enters the air flotation tank to remove small oil droplets, and finally enters biochemical treatment together with domestic sewage. If the sewage from the finished product warehouse may contain alkaline water brought by the device, it must be recycled separately to avoid major impact on downstream water treatment facilities.

I just did a project to treat oil and water in an oil depot, and the effect was good. The milky white water was treated like clean water.

Can you please share the information on the oil depot water treatment you did?